RIDER's PERPETUAL TROUBLESHOOTER'S Radio set service manuals - 1930 to 1954
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PERPETUAL
TROUBLE SHOOTER'S MANUAL Reg. U. S. Pat. Ofr. VOLUME 1VIII
JOHN F. RIDER PUBLISHER, INC.
480 Canal Street
New York 13, N. Y.
1
BOOKS BY RIDER
THE RADIO AMATEUR'S BEAM POINTER GUIDE INSTALLATION AND SERVICING OF Low POWER PUBLIC ADDRESS SYSTEMS
INSIDE THE VACUUM TUBE CATHODE-RAY TUBE AT WORK
SERVICING SUPERHETERODYNES SERVICING RECEIVERS BY MEANS OF RESISTANCE MEASUREMENT
PERPETUAL TROUBLE SHOOTER'S MANUALS
VOLUMES I TO V ABRIDGED ONE VOLUME)
VOLUME VI
VOLUME X
VOLUME XIII VOLUME XVI
VOLUME VII VOLUME VIII VOLUME IX
VOLUME XI
VOLUME XIV
- VOLUME XII VOLUME XV MASTER INDEX VOLS. I-XV
VOLUME XVII VOLUME XVIII
AUTOMATIC RECORD CHANGERS AND RECORDERS
*
RIDER TELEVISION MANUALS
VOLUME I
VOLUME II
*
RIDER PA MANUALS VOLUME I
*
ALIGNING PHILCO RECEIVERS, VOLUMES I AND II
AUTOMATIC FREQUENCY CONTROL SYSTEMS SERVICING BY SIGNAL TRACING THE OSCILLATOR AT WORK THE METER AT WORK VACUUM TUBE VOLTMETERS
*
AN HOUR A DAY WITH RIDER ON:
RESONANCE AND ALIGNMENT AUTOMATIC VOLUME CONTROL ALTERNATING CURRENTS IN RADIO RECEIVERS
D -C VOLTAGE DISTRIBUTION IN RADIO RECEIVERS
* - FM TRANSMISSION AND RECEPTION by Rider-Uslan - UNDERSTANDING VECTORS AND PHASE by Rider-Uslan
- A-C CALCULATION CHARTS by R. Lorenzen - - RADAR WHAT IT Is by Rider-Rowe - UNDERSTANDING MICROWAVES by Victor J. Young - BROADCAST OPERATOR'S HANDBOOK by H. E. Ennes
HIGH FREQUENCY MEASURING TECHNIQUES USING TRANSMISSION LINES
By E. N. Phillips, W. G. Sterns, N. J. Gamara
The servicing data appearing on Philco, RCA and other pages carrying individual copyright notices, are copyrighted by the respective companies and are reproduced herein with their permission.
Entire Contents Copyrighted, 190, by john F. Rider
Printed in U. S. A.
ADMIRAL CORPORATION
ADMIRAL PAGE 18-1 GENERAL NOTES FOR!
CHASSIS REMOVAL (For Servicing)
TILT-OUT CHASSIS
Due to the type of chassis mounting used, removal of the entire tilt-out door assembly (with receiver chassis attached) simplifies removal of the receiver chassis. The receiver chassis can then be easily removed from its shock mountings. Removal is a little "tricky" but can be done most readily as described below:
Disconnect all cables and leads to the chassis.
Remove the screw and washer (#1 in figure 1) from both tilt -out spring studs (2), one on each side of the tilt -out assembly. Slip the tilt -out springs (3) off their respective studs. Unscrew the ends of the tie-bar (4) . The tie-bar then hangs free on the copper braid used to bond it to the chassis.
Stand at the end of the cabinet (adjacent to the radio compartment) with left hand on the door handle at the front and with right hand in the radio compartment near the back of the chassis and grasping a long screwdriver as shown in Fig. 2.
With the left hand, pull the assembly out to one half of its full tilt -out position. With the screwdriver, pry both tilt-out arms (#5 in Fig. 2) off their studs (#6) . Using the screwdriver blade, push the tilt -out arms toward the front of the cabinet (against bracket #7.) The assembly will move downward a slight amount from its original mounting position. The tilt-out assembly can now be removed from the front of the cabinet by tipping it forward and then pulling it straight out. CAUTION: In models having record storage compartments below the receiver, the record storage compartment door MUST be closed during the actual process of removing the radio tilt -out door assembly.
Fig. 1. Receiver Tilt -Out Mounting
Ref. No.
Description
1
#6-32 x Si" Screw
2
Stud
3_._._....Spring, Adjusting (for chassis mtg.) 4 ..........Tie -Bor (for receiver chassis mtg.)
Door Arm, left (near center of cab.)
5
J
-' lDoor Arm, right (near center of cab.)
6
Stud
j Door Bracket, left (near miter of cab.)
7
Door Bracket, right (nearest side of cab.)
8.
Rubber Channel (% x ).) x 23ir" over-all)
S .- __.Bumper, Rubber-For radio chassis
(some modes only)
Part No.
.Part of #5
19A 15-2 15B 160 A1440 A1441
Part of #7
A1438 A1439 12A 9-1
12A 3-6
CHASSIS REPLACEMENT
Install chassis on the tilt -out assembly, making sure the chassis shock mounting is assembled exactly as shown in Fig. 3. Be sure that the grommets shown in Fig. 3 are in place on the chassis bracket and that the chassis bracket does not touch the tilt-out arm.
Make sure the rubber strips (#8) are in place.
To replace the . assembly, grasp it with both hands and move it into place in the cabinet, in the tilted or open position.
Then continue to hold the assembly in place by
grasping the door handle with the left hand. Now
pull the assembly slowly toward its closed posi-
tion. At the same time with the the right hand, spring the tilt-out wardly until they clear the studs.
screwdriver in arms (#5) inThe assembly
will move downward
tilt-out arms in the
and into position
the cabinet with shown in Fig. 2.
the
Then lift the assembly by lifting the handle with the left hand and the tilt-out arms with the right hand. One at a time slip each tilt-out arm into place on its stud.
Replace the tie-bar (#4) and tilt-out springs (#3). Reconnect the leads and cables to the chassis.
©John F. Rider
COVER PLATE
M
Feg. 2. Receiver Tile -Out Mounting
MOUNTING SCREW
GROMMET STUD
ANGLE BRACKET (ATTACHED TO TILT-OUT ARM. I
-CHASSIS BRACKET (ATTACHED TO CHASSIS.)
END OF RECEIVER CHASSIS
Fig. 3. Chassis Shock -Mounting
PAGE 18-2 ADMIRAL
MODELS )4D11, 4D12
ID13, CHASSIS iD1
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ADMIRAL PAGE 18-3
MODELS LD11, í;D12, óD13, CHASSIS bDl
ALIGNMENT PROCEDURE
1. Remove chassis from cabinet.
2. Install a fresh set of batteries.
3. Connect Output Meter across Voice Coil. 4. Turn Receiver Volume Control full on.
5. Use lowest Output setting of Signal Generator capa-
ble of producing adequate Output Meter indication and then proceed as outlined in chart below.
6. Repeat adjustments to insure good results.
Dummy Antenna
Step
in Series with
Signal Generator
Connection of Signal Generator
(High Side)
Signal Generator Frequency
Receiver Gang Setting
Trimmer Description
Trimmer Designation
Type of Adjustment
.1 Mfd.
Stator Lug, Left Section of Tuning Condenser (Antenna
Stator)
455 K.C.
Tuning Gang Wide
Open
2nd I.F. lst I.F.
A, B C, D
Maximum
Deflection; then repeat
.1 Mfd.
Stator Lug, Left Section of Tuning Condenser (Antenna Stator)
1630 K.C.
Tuning Gang Wide
Open
Oscillator
E
Maximum Deflection
No physical connec- Loop radiator (or place gen-
3
tion between genera- erator lead close enough to
tor and set.
receiver loop to obtain ade-
1400 K.C.
quate signal)
Tune in Generator
Signal
Antenna
F
Maximum Deflection
TUBE AND TRIMMER LOCATION
TOP VIEW
-wri
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E-
FRONT OF
BATTERY REPLACEMENT
"A BATTERY": two flashlight cells (1-5/16 x 2-3/8 inches) Ensign F2, Burgess No. 2, Eveready 950 or equivalent.
"B BATTERY": one Ensign B67, Burgess XX45,
Eveready 467 or equivalent.
"A" Battery life about 15 hours. "B" Battery life about 30 hours.
eemtl
POSITIVE TERMINAL
°A" BAT TE RY CONTACT PLATE
"B° BATTERY--
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IU4 IRS
1.45
BOTTOM VIEW
©John F. Rider
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1.45
3 S4
°K CELLS
"B" BATTERY CLIP,
Install both "A" cells with the positive terminal against removable contact plate.
VOLTAGE DATA
Readings made between point indicated and chassis. Measured using a fresh set of batteries. Turned to low frequency end, no signal. Voltages measured with Vacuum -Tube Voltmeter. A second voltrge reading (marked with an asterisk ) indicates readings made with a 1000 ohm -per-volt meter when use of this instrument would result in appreciably lower readings.
PAGE 18-4 ADMIRAL
MODELS 5F11, 5F12,
CHASSIS 5F1
ADMIRAL CORPORATION
1R5
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IU4
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-
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SELENIUM RECTIFIER
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BATTERY PLUGS SHOWN TOP VIEW
SWIb
RIO I
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IU4
0 0
IRS
0 0
IU5
0 0
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/777
C12D SWIc
R12 R13
'R14
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L 1 Switch section SWIC used only In sets with model numbers ending in -UL'. For sets without SWIC, dashed line connection is mode.
GREEN DOT
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K -TRAN
CONNECTIONS
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2 COLORED
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Power change switch SWI shown in operating position from power line.
VOLTAGE DATA
Voltage readings taken between tube socket terminals and
B minus (metal shell of electrolytic condenser).
(9
COTTON or CHASSIS
Dial set to low frequency, no signal, and volume control
minimum.
IR5
Measurements made from 117 volts AC line. If measured
ere ee.Rí/0,3.3 3V4
e4
le
from DC line, voltages may be slightly lower.
6.6
' Voltage readings taken with a vacuum tube voltmeter.
Socket terminals marked with an asterisk indicate much
1.4
2.6
4
lower voltage or zero voltage if measured with a 1000 ohm -
per-volt meter.
If measurements are male on battery operation, tube filament and B plus voltages will vary with the condition of the batteries. These voltages will equal the terminal voltage of the A or B battery less the voltage drop through components.
If taken with a 1000 ohm-per -volt meter, readings will be lower or zero.
RESISTORS
Symbol
Description
Part No.
R1 P.2
100,000 Ohms, 3.3 Megohms,
/4
1/4
WWaatttt
_..__
60B 27-104 60B 27-335
R3 1 Megohm, Volume Control and
On -OB Switch...
..... 75B 1-21
R4
'R5
10 Megohms, ! á Watt.. 4.7 Megohms
60B 27-106
5R6 1 Megohm
IR7 2.2 Megohms
RB 2,700 Ohms, 1 Watt ._..._._.608 14-272
F9 47 Ohms, 1 Watt_
.
60B 14.470
RIO 2,400 Ohms, 2.5 Watt
(Tapped Landohm)_.
_61A 5-3
RI1
10 Megohms. (R11 not used
1.4
in
Watt..
early
60B
production)
27-106
R12 2,200 Ohms, I/t Watt _.. _...60B 26-222
R13 390 Ohms, 14 Watt.. R14 180 Ohms, 1,4 Watt_....
. 60B 26-391 .. 6013 26-181
015 120 Ohms, 1/4 Watt
_.____60B 26-121
CONDENSERS
^I .25 mfd., 200 Volts. Paper.... 64B 1-28
C2a C2b
Gang, Gang,
420 126
mmfd. mmfd..
(maxi (max)
l f
68B 14
C3
4
100 .01
mmfd., Ceramic
_...
mfd., 400 Volts, Paper..
.....6513 ....64B
6-3 1-25
C5
100 mmfd.. Ceramic.. ..
65B 6-3
- C6
.001 mfd.. Ceramic. (tolerance 0%, + 20%)
65B 6-41
;C', .005 mfd., Ceramic
;C3 100 mmfd., Ceramic
<C9 .005 mfd., Ceramic
- C10 .001 mid., Ceramic_ (tolerance 0%, -1- 20%)
65B 6-41
Symbol
Description
Part No.
C11
C!2a C12b C12c Cl3
.05 mfd., 400 Volts, Paper 30 mid., 150 Volts I 20 mfd., 150 Volts Elect. 20 mid., 150 Volts I 100 mfd., 25 Volts. Elect..._
64B 1-22 67C 7-1 67A 4-6
C14 .1 mfd., 200 Volts, Paper...
64B 1-30
C15 .001 mid., Ceramic (tolerance --0%, 4- 20%)
65B 6-41
(C15 not used in early production)
COILS, TRANSFORMERS, ETC.
LI Antenna, Loop_.._......._......__..._____69B 40
1.2
TI T2
T3 MI
Coil, Oscillator..._ Transformer, 1st Transformer, 2nd
_._.-...._ _
LF........ ...... I.F. ._
.
Transformer, Output
Speaker (4"PM) and Output
69A 59 72B 28-11 72B 28-11 98A 21
Transformer
788 34-2
M2 Rectifier, Selenium..
93A 1-4
SW1 Switch, Power Change
DPDT, for "N" models..
77A 19.2
4PDT, for "UL" models_. SW2 Switch, On -Off
77A 19-1 (Part of 83)
fCouplate
63A4.3
(Includes C7, C8, C9, R5, R6, R7)
PLASTIC CABINET PARTS
Description
Part No.
Body, Cabinet (less all other parts)
Maroon 5F11
.....
..___. 39D 20-1
Ebony 5F12
_._.
Lid, Cabinet (less all other parts)
_. 34D 20-5
Maroon SF11 ___...
.__ 34D 20-2
Ebony 5F12
___ _. _ _._ 34D 20-6
C7, C8,
(part number by Individual
R5, R6, 87 are contained in a multiple -unit component called
63A4-3). Although a defective section components, we recommend repta cinq
of the couplate can the entire couplate.
sometimes
a be
couplate replaced
Note couplate
that lead
numerals numbers
1, 2,
printed
3,
on
4. 5. and body of
6 shown at schematic couplate directly above
connections, the leads.
correspond
to
Description
Part No.
Cover, Antenna (for inside lid)
Maroon 5F11
_ 39D 20-4
Ebony 5F12
_. 34D 20-8
Escutcheon ó Grille (front)
Maroon 5F11
__......
23C 32-1
Ebony 5F12
.23C 32-2
Handle, Carrying (less all other parts)
Maroon 5F11
._._34D 20-3
Ebony 5F12..
__34D 20-7
Knobs
"Volume" Maroon 5F 1 l
33B 30-1
"Tuning" Maroon 5F11.. _.
33B 30-2
"Volume" Ebony 5F12.
33B 30-3
"Tuning" Ebony 5F12_.. _..._ _.. 33B 30-4
MISCELLANEOUS
Bracket, Battery Support......__... _. -__ 15A 286
Bracket, Chassis Support
15A 288
Bag, Waxed Paper Shipping.... _ 45A 4.7
Carton and Fillers.
44B 111
Catch Pin, Lid (on Monogram) _.. 23B 31-2
Clip, "B" Battery....
90A 5-2
Clip, IF Transformer Mounting . - _ 728 28-10
Contact Strip, Antenna
10A 11-1
Cover, Chassis (metal)
15B 267
Cover and Latch Assembly
(Metal Cabinet Bottom)
AB141
Grille Cloth (71/2"x43/4")
_ .._36B 3-7
Hinge and Bracket, Cover (Left Side).. A1660
Hinge and Bracket, Cover (Right Side).. A1661
Monogram (Admiral).
__.. 23B 31-1
Pin Tip (for Antenna Leads)._ ... ....86A 2-1
Plate, Electrolytic Mounting -..........67A 2-1
Plug, "A" Battery ...__..._
____ _ __.88A 4-6
Pointer. Dial Tuning____.._
_..___...25A 29-1
Shield Plate (tor Selenium Rectifier)...._15A 304
Snap Buttons
_. ___. _.._.._
13A 1-3-47
Speed Nut (Monogram mounting)._._ 2B 10-23-68
Speed Nut ("U" type)._..... .. __... ___.. 2A 9-5
Spring, Lid Catch Pin__.
. .. ... 19A 29
Tube Socket. ....... ..._.._. ___. __ _.. _..._._87A 3-4
©John F. Rider
ADMIRAL CORPORATION
MODELS 5F11, 5F12,
CHASSIS 5F1
ALIGNMENT PROCEDURE
Use battery power for alignment if fresh batteries are available.
When usingAC power, an isolation transformer should be
used if available. If not using an isolating transformer, connect a .1 mfd. condenser in series with the signal generator low side to B minus of radio chassis. Connect loop antenna and maintain same relative position as when in cabinet.
Set volume control full on.
Connect output meter across speaker voice coil.
Pgood Use lowest setting of signal generator capable of producing
adequate output meter indication and then proceed as outlined below.
Repeat adjustments to insure
results.
NOTE To avoid splitting the slotted head of powdered iron core tuning slugs in I.F. transformer,
use an alignment tool with a screw driver blade %" wide.
Step
Dummy Antenna in Series with
Siggnal Generator
Connection of Signal Generator
(High Side)
Signal Generator Frequency
Receiver
Gang Setting
Trimmer Trimmer
Type of
Description Designation Adjustment
.001 mfd. when using A. C.
.1 mfd. when using Battery
.001 mfd. when using A. C. .1 mfd. when using Battery
Tuning condenser, antenna stator
455 KC
Gang fully open
2nd IF 1st IF
Tuning condenser, antenna stator
1620 KC
Gang fully open
Install chassis in cabinet. Connect loop antenna.
Oscillator (on gang)
A, B
C, D (see note below)
Maximum output
Maximum
E
I output
Loop of several turns of
3
wire, or place generator lead close fo receiver loop for adequate
No physical
connection (signal
by radiation)
1400 KC
'Tune in
generator
signal
Antenna (on gang)
F
signal.
Maximum output
Mount dial pointer. Set pointer at 1400 KC with gang condenser tuned to 1400 KC signal. NOTE: Adjustments B and D are made from underside of chassis.
TUBE AND TRIMMER LOCATION
For Battery
Here
of O °
sFl-lee
^
e '- O (
IlDI
4 H O t,-rf,.. B
LINE CORD
COVER L ATCN
BOTTOM COVER
O
ANTENNA CONNECTIONS
INTERLOCK
COLOR -CODED
O
RECEPTACLE
ar-_,
A "PUTT
REPLACEMENT OF BATTERIES
Use replacement A and B batteries of the following types:
A Battery: Ensign A47 or equivalent.
B Battery:
equivalent.
Ensign
B67,
Burgess
XX45,
Eveready
467 or
mbBisaotEbwdtaeleeetralticseketrsripiaecrnmsaodlvaaiysvdcoehlgolatifwvarogearceatsesehaqr4atiui9sssat.f5ildacrcslviotfoopelorptyfsef.odrpreRebcbreeofoplomotlrhwammcteeavhnnaebdcluaeeAetdtseaarsbingeaidlsvotteweBwnriheabaessbanottv5efr.eoer5.icreesvpt.ohtileotssAn;e
'
41'-'
L
` B e'í BATTERY
, ENSIGN
7
I m
O
"B" BATTERY CLIP
BATTERY SUPPOR BRACKET
BAT*TAE' RY ENSIGN 'A-47 5,-,42.4
To install the hinged the battery batteries in
bsrpoueltapptoclpaemoc.retmcobevrneatrc.kbeattTtehireninesp,rleasmcliedo.evetThtehhiescosvbcerrreawclkatecwthhhiaconhlddshooptlhdeesn
In
later
PRODUCTION CHANGE production, knobs with longer shanks
were
used
Remove the clip which fastens to the "B"
of snap buttons. Remove the "A" battery
the batteries. Connect tery support bracket,
the
new
batteries
and
battery by means plug and replace re -install the bat-
to eliminate the possibility of the rubbing. The dial pointer has also
use with this revised knob.
knobs sticking or been modified for
©John F. Rider
PAGE 18-6 ADMIRAL NODlL 6C11, CHASSIS Cl
IU4
R F AMP
C3
C4
Cl
ADMIRAL CORPORATION
lR5
CONY.
1U4
I F AMP
11.15 OET AVG A F AMP
T2
21
4-1 4
3V4
OUTPUT
R12
-1 MI
3
/ /
/
IF. 455 K.0
b Common Lein Cen.(B-)
AR Chassis One
Pow change switch SWI shown In operating position from power lin..
C 1((3
Cite= CIS
M2
IC-
SELENIUM
RECTIFIER R13
514
iii
r
3V4
IU4
IU4
IRS
IUS
Swle
c41 as
RIS
IF.
R.F.
OSCILLATOR COIL
4 Iswlnl
("'l CSECONDARY
3
.---+2
Q PRIMARY
-ít25,.)
90 V
TOP VIEW OF
BATTERY PLUG
SW2
C 4c
ivC
R16
R17
C17
Switch section SWIG end SWId need only In sets with model numbers ending
le UC. For Ws without SWIG end SWId, dashed line connection ie mode
RIB
P.19
CIB
VOLTAGE DATA
Voltage readings taken between tube socket terminals and 11 minus )metal shell of electrolytic condenser).
eor7oM OF CHASSIS
fl Be1.l7a y
Dial set to low frequency, no signal, and volume control
minimum.
*2.1
1.3
1.3 1.3
2.6 2.6
0 1.3
+F1.1
Measurements made from 117 volts AC line. If measured from DC line, voltages may he slightly lower.
( Voltage readings taken with a vacuum tube voltmeter. Socket
terminals marked with an asterisk * indicate much lower voltage or zero voltage if ntra-urcd with a 1000 ohm -per-volt meter.
If nlaeurenlcnts are made on battery operation, tube filament and B plu: voltages will vary with the condition of the batteries.
l'h.e voltages will equal the terminal voltage of the A or 11
h:ittery tninll the voltag.' drop Ihrottgh components.
SI* *.3 83
IU4
IR5
IU4
83 80
IU5
3V4 1
It taken with a 1000 ohm -per -volt meter. readings will be lower or zero.
RESISTORS
Symbol
Description
Part No.
Pt 2.2 Megohms, 1,.4 Watt _
60B 27.225
R'.
27,000 Ohms, 1/4 Watt... ..... _._._60B 26-273
P2 I Megohm, t i4 Watt
60B 27-105
P4 100.000 Ohms. 1/4 Watt
60B 27-104
05 8.200 Ohms, 1/4 Watt..
60B 26-822
Note: In some sets, RS was 10,000
Ohms: other sets used pair of 18.000
Ohm resistors in parallel.
,
1.3 Megohms, 1/4 Watt .
60B 27-335
10 Megohms, 1/4 Watt
GOB 27-106
F3 E+ 1 Megohm. Volume Control and
On -Off Switch .
.. 75B 1-26
lilt 4.7 Megohms. ?:) Watt.
GOB 27-475
RIO 470,000 Ohms, 1/4 Watt RII 2.2 Megohms. i,4 Watt 012 5.6 Megohm;, 1/4 Watt R13 47 Ohre 1 Watt R14 2.700 ') ms, I Watt R13 2,400 Ohms, 2.5 Watt
Topped Candohm P;6 I.SOO Ohms. y'.l Watt n17 820 Ohms, l:á Watt RJR 220 Ohms, 1.1 Watt R19 150 Ohms. 1'4 Watt
60B 27-474 60B 27.225 GOB 26-565 60R 14-470 60B 14-272
61A 5.3 60B 26-152 ...608 26-821 60B 26-221 6013 26-151
CONDENSERS
230 r-mtd., Ceramic .
c ;I Gang. 420.0 mmfd. (max.)
Ant- Section
Cob Gang 193.8 mmfd. (max.)
RF Section
Í
C2c Gang, 90.0 mmfd. (max.; I
Ose. Section
J
65B 6-5 688 10
Symbol
Description
Part No.
C3 100 mmfd., Ceramic
65B 6-3
C4 250 mmfd., Ceramic......
65B 6-5
C5
100 mmfd., Ceramic.. ._. .
65B 6.3
CG .05 mfd., 200 Volts, Paper.. 64B 1-32
- C7
.001 mfd., (tolerance
Cera0m%i,c...+
20%)
65B 6-41
C8 .005 mfd.. 600 Volts, Paper.. 64B 1-12
C9 .05 mfd., 200 Volts, Paper
64B 1-32
C10 100 mmfd., Ceramic...
65B 6-3
CIt .005 mid., 600 Volts, Paper
64B I-12
C12 .001 mfd., Ceramic
65B 6-41
(tolerance -- 0%, 1. 27°o)
C13 250 mmfd., Ceramic
65B 6-5
CI4a 30 mfd., 150 Volts
I
C14b 40 mfd. 150 Volts ' Elect.
67C 7-52
C14c 20 mfd., 150 Volts
Cl3 .18 mfd., 200 Volts. Paper
64A 2-2
Note: In sets with model numbers
ending in "UL", C15 is .1 mfd., 400 V.
C16 .05 mfd., 400 Volts, Paper. C17 100 mid., 25 Volts, Elect. CIS .25 mfd., 200 Volts, Paper
64B 1-22 67A 4-6 64B 1-28
COILS, TRANSFORMERS, ETC.
1.1 Antenna, Loop.
._
69B 61
L2 Coil. HF.
69B 58
L3 Coil, Oscillator
69A 57
TI Transformer, 1st IF
. _ 72B 55
T2 Transformer, 2nd IF
7213 56
T3 Transformer, Output..
98A 21
M1 Speaker (4"x6" PM( and
Output Transformer
38-1
M2 Rectifier, Selenium
1-4
SWI Switch, Power Change
DPDT, for "N" models.
77A 19-2
4PDT, for "UL" models...
77A 19-1
SW2 Switch, On -Off...._
(Part of R8)
PLASTIC CABINET PARTS
Description
Part No.
Body,
Cabinet (less
all
other
parts) .
34D
21-1
Lid, Cabinet (less all other parts) 34D 21-2
Cover. Antenna (for inside lid) . __ ...34D 21.3
Escutcheon & Grille (front).......__
23D 33.1
Handle, Carrying (less all other parts) 34D 21.4
Knobs
"Volume" ... .. ... __ ....
33B 35-1
"Tuning"
33B 35-2
MISCELLANEOUS
Baffle Board, Speaker.. ....
43A 52
Bag, Waxed Paper Shipping..... _ 4SA 4-8
Carton and Fillers
44B 113
Catch Pin. Lid (on Monogram)__ . 23B 31 2
Clip. Antenna
.
90A 2-3
Cover 6, Hinge Assembly, Cover, Chassis (metal).
Bot.t.o.m. ...
_.....A1773 15C 301
Grille Cloth (101/2'x4t/2")._ _ _
36B 3-11
Hinge and Bracket,
Cover (Right side) Hinge and Bracket,
A1670
Cover (Left side)
Hinge and Spring (Bottom Cover)
Monogram, Admiral.._....
..._.
Plate, Electrolytic Mounting..._......_
Plug Battery..
...
....._... _..
Pointer. Dial Tuning_. _._..._ _....
A1669 37A 14 _.23B 31-1 _67A 21
BRA 3-3
25A 32
Snap Button...
_.... _... ._.
13A 1-1-47
Speed Nut (for Battery Strap)... _. . 2A 9 5
Speed Nut (Monogram mounting) ....2B 10.23-68
Spring, Lid Catch Pin
19A 29
Tube Socket
87A 34
`e)John F. Rider
ADMIRAL PAGE 18-7
ADMIRAL CORPORATION MODEL 6C11, CHASSIS 6C1
ALIGNMENT PROCEDURE
Use battery power for alignment if fresh batteries are available.
When using AC power, an isolation transformer should be used if available. If not using an isolating transformer, connect a .1 mfd. condenser in series with the signal generator low side to B minus of radio chassis.
Connect loop antenna and maintain same relative position as when in cabinet.
Set volume control full on.
Connect output meter across speaker voice coil. Use lowest output setting of signal generator capable of pro -1 ducing adequate output meter indication and then proceed as outlined below.
Repeat adjustments to insure good results.
NOTE
To avoid splitting the slotted head of powdered iron core tuning slugs in I.F. transformer, use an alignment tool with a screw driver blade 1/e" wide.
Step
Dummy Antenna in Series with
Signal Generator
Connection of Signal Generator
(High Side)
Signal Generator Frequency
Receiver
Gang Setting
Trimmer
Trimmer
Type of
Description Designation Adjustment
.001 mfd. when
1
using A. C. .1 mfd. when using Battery
Grid of 1R5 (Pin 6)
455 KC
Gang fully open
2nd IF 1st IF
.001 mfd. when
2
using A. C.
.1 mfd. when using Battery
Grid of 1R5 (Pin 6)
1620 KC
Gang fully open
Oscillator (on gang)
.001 mfd. when
3
using A. C. .1 mfd. when
Tuning condenser, antenna stator
using Battery
Install chassis in cabinet. Connect loop antenna.
Loop of several turns of
wire, or place genera-
No physical
4
tor lead close to re-
connection (signal
ceiver loop for adequate
by radiation)
signal.
1400 KC
Tune in
generator signal
R. F. (on gang)
1400 KC
Tune in i
generator Antenna
signal
(on gang;
Mount dial pointer. Set pointer at 1400 K.C. with gang condenser tuned to 1400 K.C. signal. NOTE: Adjustments B and D are made from underside of chassis.
A, B C, D (see note below)
E
G
Maximum output
Maximum output
Maximum output
Maximum output
REPLACEMENT OF BATTERY PACK Replace A -B battery pack with Ensign type AB50 pack, Ray-O Vac ÁB994, General 60A-6F6-5, Burgess F6A60 or other equivalent.
Electrical characteristics of the recommended battery packs
provide section
for may
equal give
life for both the A and B sections. The A satisfactory performance as low as 6.6 volts,
the B section as low as 60 volts. reception is weak and voltage has above.
Replace dropped
battery pack below values
when given
To install screws that illustration.)
a replacement battery pack, first remove the six hold the metal bottom cover to the cabinet. (See
The battery pack is strapped to the bottom cover
and will come out when the cover is removed. Pull out the
battery plug, loosen the screw which holds the battery strap tight, and slide out the old battery pack.
Slip a new battery pack into place, tightén the screw which tightens the strap around the battery, plug in the battery plug and re -install the bottom cover.
TUBE AND TRIMMER LOCATION
-` For Battery Operation Insert Plug Here.
n
6C1-176
1U4
L
© John F. Rider
BATTERY PLUG
PAGE 18-8 ADMIRAL MODEL 6R11, CHASSIS 611
MIRAL CORPORATION
2
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úU
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E
Ñ
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V...7 F.. V) Q) 6>^ p0 OA a). C
vrw c.F'.'bdac>8yva aCV.fl.D c6
ÓO ^O
w;:2:1":2 W
-G; -22
cuaZu
y.t
ÿ °ywpy
M..y. b
m
V
d
+ y 3
v Fv.i.u..V.
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o
td ^-- I-r
.3 -=
v°
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Ri
g.a cö.G m yC.ïA
Úóó2 >+,.. Ce
ci
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E c.+ iVi
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J
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©John F. Rider
ADMIRAL CORPORATION
ADMIRAL PAGE 18-9 MODEL 6R11, CHASSIS 6R1
IMPORTANT PRELIMINARY ALIGNMENT STEPS
In FM alignment, it is essential that every step be followed. Especially important is picking the center of the IF curve (step 4 in the FM -IF alignment instructions). During this portion of the alignment it is necessary to tune the signal generator very carefully; it may necessitate having to estimate the dial readings to a tenth
of a division. Under normal operating conditions or use, misalignment
of RF or IF circuits with age will be slight. Lack of sensitivity and poor tone quality may be due to causes other than alignment. Do not attempt to realign the receiver until all other possible causes have first been thoroughly investigated.
If complete alignment is necessary, it is essential that proper sequence be followed as tabulated in the alignment chart. However, if only the AM band or a portion
of the FM circuit are to point on the chart being
be aligned, proceed sure to follow all
from that remaining
steps.
Adjustments made to FM-IF's at 10.7 MC, will require realignment of AM -IF slug adjustments.
Ctliahprecopkfunpthcoehinptaeotrintptheoersitceilxoiptnr.esmhWoeuilltdehftbteuennoidvnegrofgthatenhge1/c1dl6ioa"sledcb,iartcchkue-ground (see stringing diagram).
Use an isolation connect a .1 mfd. signal generator
transformer condenser in and attach to
if available, otherwise series with low side of B minus of chassis.
Be sure both the set and the thoroughly warmed up before
signal generator are starting alignment.
FM I.F. AND RATIO DETECTOR ALIGNMENT
Keep output indicator leads well separated from signal generator leads and chassis wiring. Band switch in FM position (fully to the left). While peaking IF's, keep reducing signal generator output so VTVM reading is approximately +1.5 volts DC with exception of Step #5.
TsaDlolouiggansnvmootiiednnetsxtpehtolreitottliIunwFngdituththereaapnsrsleo'f/ssott"sreumdrweehiredsaea,dssouctfsrheeirrweoaadnndrcsivorieonerfstuubsllnalauitdnegegds. may strip. Speaker must be connected during alignment. FM antenna disconnected during alignment.
Before proceeding, be sure to follow all steps listed above, under "Important Preliminary Alignment Steps."
Connect
Generator Receiver
Signal Generator Frequency Dial Setting
Output Indicator and Special Connections
1
Thru .001 cond. to 2nd IF grid
(pin #1 of 12BA6 2nd IF)
10.7 MC unmodu-
lated.
Tuning gang wide open
Connect VTVM (DC probe) from point "W" to B minus ("Y"). (See Fig. 7.)
**Thru .001 cond
to 1st IF grid
PI
2
(pin 12BA6
#1
1st
of
IF)
High side
a FM antenna
,I
terminal
,I
I,
Adjust as Follows (very carefully) "A" (ratio detector primary) for maximum reading on VTVM.
Iron cores "B" and "C" (2nd IF trans.) for maximum reading on VTVM. Iron cores "D" and "E" for maximum on VTVM. Readjust A, B, C, D, E, for maximum. (Keep reducing generator output to keep
VTVM at 1.5 volta)
a. Reduce output of signal generator until VTVM reads exactly +1.5 volts DC.
b.
Tune generator frequency above 10.7 MC until Note exact generator frequency. Extreme care in
VTVM reads exactly +1.0 reading this is essential.
volt.
c. Tune generator frequency below 10.7 MC until VTVM reads exactly +1.0 volt. Note exact generator frequency. Extreme care in reading this is essential.
d. Add generator frequency in step c to generator frequency in step d and divide by 2.
PP
The result is the center frequency of the IF curve to he used in step 5. See example
on next page.
e. Tune generator frequency above and below 10.7 MC and note voltage reading on VTVM at different frequency points until you have a good impression of the shape
of the selectivity curve. (voltage) of both peaks.
If you have two peaks as in Figures If one peak is over 20% higher than
5 or 6, note readings the other one, it will
be necessary to realign IF's. A selectivity curve that would require realignment is
illustrated by Figure 6.
Center. of IF
selectivity
curve per step 4d above. See "EXAM-
Tuning gang
wide open
PLE" on
next page.
Connect VTVM (DC probe) from point "X" to B minus ("Y"). (See Fig. 7.)
If any adjustments were very far off, it is desirable to repeat steps 3. 4 and 5.
Do not feed I.F. signal into converter grid as this will cause mis -alignment.
Iron core "F" (ratio detector secondary) for zero voltage reading on VTVM. (The correct zero point is
located between a positive and a negative maximum.)
©John F. Rider
PAGE 18-10 .ADMIRAL rIODEL 6R11, CHASSIS 6R1
ADMIRAL CORPORATION
SETTING SIGNAL GENERATOR TO
CENTER OF I.F. SELECTIVITY CURVE CAUTION : Due to the difficulty of setting. a signal
I3o..
- generator to the accuracy required by this operation, ex- gf
treme care must be exercised in making each setting.
- _ IIIN 100
K a K C.
K.C.KC
.__.
10.7 M.C.
Q 0-
10.72 M.C.
N s
Otherwise, improper alignment of the ratio detector and
consequent audio distortion will result. EXAMPLE: (See Figures 1 and 2)
10.64 M.C. 10.8 M.C.
10.64 M.C. 10.8 M.C.
Voltage reading in Step 4a is -I- 1.5 volts.
Fig. t
Fig. 2
Generator frequency on reading of 1 volt
l=ow10s.i6d4e0MofC.10.7
MC
for
a
Geinngeraotfor+fr1eqvuoelnt cDyCon=hig10h.8si0de0de
10.7 MC.
MC
for
a
read-
TYPICAL SELECTIVITY CURVES
2c.eCnteOr/r/RCYR/<RERECi\/'Ti\of Center frequency is obtained by adding 10.640 and 10.800, then dividing by 2. For these readings it will be 10.72 MC. Set generator frequency to 10.72 MC as this is
selectivity curve as shown in Figure
Note: Numerical vernier dial readings may be used instead
of MC.
Fig. 3
Fig. 4
Fig. 5
Fig. 6
FM RF ALIGNMENT PROCEDURE
Connect Signal
Generator
Generator Frequency
Receiver Dial
Setting
Output Indicator and Connections
Adjust as Follows
terminalon 6
Thru 270 ohm carbon resistor
to high side FM antenna
109 MCf (unmodu-
lated).
102 MC 't
(unmodulated).
Tuning gang wide open
102 MC
Connect VTVM (DC probe) from point "W" to ground.
..
'G for maximum VTVM reading. +Tune in generator signal receiver. Adjust H for max. VTVM reading.
*It If
is advisable your signal
to adjust generator generator does not
output so VTVM readings reach this frequency, use
do not exceed harmonics as
approximately +
described in "FM
1.6 V. DC after peaking. Alignment Equipment."
Ó ® 6... SC
N. SC 16 . RC
O iL W CHASSIS BOTTOM nIs NIA
nMMr
%I126.17
7----\S.0 50LE AT
POINTER POSITION FOR SETTING; GANG CLOSED
I
, l
I
( GANG
CLOSED
Li, AC J... CS i,
Es AM ANT. STATO
eF
eB eK eD
1
1
Me Td
,_,
l j
I
_.-->
1_® G
2 TURNS
0
I `
...-I..
With the gang fully should be in line with extreme left end of the
closed, the tip of the pointer the 1/16" circular punch at dial background.
clip the
ld
Fig. 7. Trimmer Location
F;g. 8. Dial Stringing and Pointer Setting
AM ALIGNMENT PROCEDURE
Use regular output meter connected across speaker
voice coil. Turn receiver Volume Control full on; Tone Control full treble.
e
AM
the
loop antenna must be same relative position
connected and placed in to the chassis as when
in cabinet.
Ilse lowest output setting of signal generator gives a satisfactory reading on meter.
that
Connect
I
Signal
Generator
Dummy Antenna Between Radio and Signal Generator
Signal Generator Frequency
Receiver Dial
Setting
.Adj. Trimmers in Following Order to Max.
Set Band Switch to Broadcast I.reliminary Alignment Steps."
Position (center) and be sure to Loop antenna must be connected.
follow
instructions
under
heading
"Important
Gang condenser
1
antenna stator
.1 MFD
455 KC
Tuning gang wide open
I, J, K, L
2
AM Antenna Stator
Direct connection
Install chassis and AM loop in cabinet.
1620 KC
Tuning gang wide open
Place generator lead close to loop cf set to obtain 3 adequate signal.
No actual connection (si nal b radiation .
1400 KC
Tune in signal
N
©John F. Rider
ADMIRAL CORPORATION
ADMIRAL PAGE 18-11 MODEL 6R11, CHASSIS 681
RESISTORS
Symbol
Description
Part No.
Symbol
Description
Part No.
R1 R2 R3 R4 RS R6
tR7
R8 R9 810 R11 R12 R13 R14 815 R16 R17 818
R19
R20 R21 R22 R23 R24 R25 §826 R27
470.000 Ohms, 1/4 Watt
608 2-474
1,000 Ohms, 1/4 Watt
60B 2-102
22,000 Ohms, 1/4 Watt
6011 2-223
470 Ohms, 1/4 Watt
608 2-471
470,000 Ohms, 1/4 Watt
608 2-474
1,000 Ohms, 1/4 Watt
608 2-102
47,000 Ohms, 1/4 Watt
220,000 Ohms, 1/4 Watt
608 2-224
1,000 Ohms, 1/4 Watt
608 2-102
390 Ohms, 1/4 Watt
608 2-391
27,000 Ohms, 1/4 Watt 6,800 Ohms, 1/4 Watt,
5%...
608 .606
2-273 1-682
6,800 Ohms, 1/4 Watt, 5%... .606 1-682
100,000 Ohms, 1/4 Watt
608 2-104
33 Ohms, 1 Watt
608 14-330
47 Ohms, 1 Watt
608 14.470
27,000 Ohms, 1/4 Watt
608 2-273
2 Megohms Tone Control and
ON-OFF Switch SW2
758 1-12
1 Megohm Volume Control (Tapped at 530,000 Ohms). .758 2-12
4.7 Megohms, 1/4 Watt
60B 3-475
1.8 Megohms, 1/4 Watt
608 3-185
470,000 Ohms, 1/4 Watt
608 2-474
47,000 Ohms, 1/4 Watt
608 2-473
470,000 Ohms, 1/4 Watt
608 2-474
150 Ohms, 1/2 Watt
608 8-151
150,030 Ohms, 1/2 Watt
608 2-154
10 Ohms, 1,4 Watt
638 2-100
Added in later production to
prevent parasitic oscillations.)
Cl §C2 (CO
C4a Cob C4c C4d C3 C6
C7 C8 C9
C10 C11 C12 C13 C14
CONDENSERS
200 mmfd., Ceramic .0015 mfd., Ceramic .005 mfd. min., Ceramic 15 mmfd. (max.), fM RF 485.8 mmfd. (max.) AM RF 15 mmfd. (max.) FM osc. 142.6 mmfd. (max.) AM Osc. .01 mfd., 400 Volts, Paper 3-12 mmfd. Trimmer
(Silver mica) 50 mmfd., Ceramic .005 mfd. min., Ceramic 35 mmfd., 10% Zero Temp.
Coe«., Ceramic .005 mfd. min., Ceramic .005 mfd. min., Ceramic
.005 mfd. min., Ceramic .005 mfd. min., Ceramic .01 mfd. min., Ceramic
656 9-15 658 9-63 65A 10-1
I
i A1814 I Gang
I
648 1-25
66A 19-2 65B 6-4 65A 10-1
658 6.57 65A 10-1 65A 10-1 65A 10-1 63A 10-1 65A 10-3
§C15 .005 mfd. min., Ceramic
65A 10-1
.C16 100 mmfd., Mica
íC17 100 mmfd., Mica
Cleo .034 mfd. min. .004 mfd. min.
Dual Ceramic. 65A
17.1
C I9 100 mmfd. 5%,-.00073 Temp.
Coe«., Ceramic
65B 6-7
C20 100 mmfd. 5%, .00075 Temp
Coe«., Ceramic
65B 6-7
C21 4 mfd., 50 Volts, Elect
67A 4-8
C22 .002 mfd., 600 Volts, Paper. , 648 1.14
C23 .001 mfd., Ceramic
658 9-31
C24 500 mmfd., Ceramic..,
658 9-24
(Used in early production only; re-
moved to prevent detuning on FM.)
C25 .005 mfd., 600 Volts, Paper 648 1-12
C26 .002 mfd.,600 Volts, Paper 64B 1-14
C27 .01 mfd., 400 Volts, Paper 648 1-25
C28 50 mmfd., Ceramic.....
65B 6-4
C29 .1 mfd., 200 Volts, Paper
64B 1-30
C30 .1 mfd., 200 Volts, Paper 648 1-30
C31 .01 mfd., 400 Volts, Paper 648 1-25
C32 .01 mfd., 400 Volts, Paper
648 1-25
C33 .0015 mfd. min., Ceramic 65A 14-2
C34 .0015 mfd. min., Ceramic 65A 14-2
C35 .01 mfd., 400 Volts, Paper 64B 1-25
C36 .18 mfd., 200 Volts, Paper 64A 2-2
C37 .05 mfd., 200 Volts, Paper 64B 1-32
C38a 70 C38b 30
mfd., mfd.,
150 150
Volts Volts
Ì
Elect
J
§C39 .1 mfd., 200 Volts, Paper
67C 6-d0 648 1-30
FC40 .01 mfd. min., Ceramic
65A 10-3
Col .0015 mfd. min., Ceramic
65A 14-2
(Used only in sets with model
numbers ending in "N".)
COILS, TRANSFORMERS, ETC.
L1 Antenna, Loop (AM) 1.2 Coil, RF (FM) 1.3 Coil, Oscillator (FM) 1.4 Coil, Oscillator (AM) 1.5 Choke, Cathode RF
1.6 Choke, Heater RF
1.7 Choke, Heater RF
698 73
69A 68
69A 69
OA 20-3 AA139-5
73A 2-3 73A 2-3
1.8 Choke, Filter
74A 15-2
§L9 Coil, IF Trap Approx. 5 turns (18") of solid No. 22 hook-up wire wound on C39. Solder one end to inside foil lead of C39.
110 Antenna, Bullt in FM
AB155
T1 Transformer, 1st IF (FM). T2 Transformer, 2nd IF (FM) 13 Transformer, Ratio Detector.
72B 64 72B 65 72B 39
T4 Transformer, 1st IF (AM)
728 66
t Part of encased Diode Filter Uni 63A3-1. This unit consists of R7, C16, C17 (see schematic). If a section of the unit becomes defective, it may be replaced with a component of proper value.
§ Used only in sets with model numbers ending in "Ul".
Symbol
Description
Part No..
T5 Transformer, 2nd IF (AM)
728 66
16 Transformer, Output
79A 14-2
M1 Speaker 5" P.M. Dynamic
788 39-1
M2 Socket and Leads, Phono -
Motor
89A 6-1
M8 Socket, Phono input
88A 8-6
M9 Rectifier, Selenium
93A 1-2
SW1 Switch, On -Off
Part of R18
SW2 Switch, Bond (FM, AM, Phono) 778 22
PHONOGRAPH PARTS
Note -See Record Changer Manual for
complete parts list.
M3 Plug, AC Phono -Motor
888 8-1
M4 Motor, 60 Cycles
115 Volts AC
4076 3-2
M5 Cartridge and Needle, Pickup A1372.13
M6 Cable, Pickup (3 conductor) 89A 18-4
M7 Plug, Pickup Cable
88A 8-5
SW3 Switch, Motor On -Off
408A 1
(See caution in changer manual)
Centerpost (includes speed -nut) G4008 137.1
Idler Wheel (4078 3-2 Motor)
0400A 23
Idler Wheel (4078 1-2 Motor)
0400A 57
CABINET PARTS
Bracket, Dial Scale Mtg
15A 169
Cabinet, Plastic
Bottom Less Lid
340 11-12
Lid only
34D 11-13
Dial Scale, Glass
21B 51
Escutcheon Overlay
23C 23-2
Grille Cloth and Baffle
A1688
Hinge
37A 8.1
Knobs, Radio
"Volume" and 'Tone"
33A 21-5
"Tuning"
338 34.2
"Radio -Phono"
338 34-1
Rubber Strip, Dial Scale Mtg. (81/2") 12A 9-3
Spring Clip, FM Antenna Mtg.
19A 44
Stay Arm, Lid
37A 9-1
MISCELLANEOUS
Background, Dial Bracket, Tuning Sleeve Bracket, Dial Light Carton and Fillers Dial Cord
Pilot Light, Mazda No. 1007 Pilot Light, Socket and Leads Pointer, Dial Sleeve, Tuning (Brass)
Spring, Dial Drum Tension Washer, Felt ("Volume" and
"Tone") Washer, Felt (Center Knob)
228 9-2 15A 289 15A 369 448 112 50A 1.3 81A 2-2 82A 9-1 25A 21-1
VA 61
198 1-3
5A 4-8 5A 4-9
FM SERVICE
Much of FM service is similar to the usual service necessary for AM receivers such as voltage analysis, parts replacement, etc. The chief differences arise because of the considerably higher frequencies used in FM operation, and because of the different type of second detector needed
in FM.
Before attempting to service the 6R1 chassis, read the description of the Ratio Detector on page 2 of the 9A1 service manual.
The higher frequencies involved means that
more care must be exercised in location and length
of leads. Leads tend to act as small inductances or
capacities at high frequency and hence may ap-
preciably alter the electrical characteristics of a
circuit. For this reason, ground connections
should always be maintained as originally made in
the set. Also note that in certain circuits, the type
by-pass condenser used is critical at the high FM
frequencies. When replacing condensers it is im-
portant that they be replaced with condensers of
identical capacity values, tolerances, temperature
coefficients and
- is a 100 mmfd
±con5s%tr,uctio.n0.007F5otremexpaemraptlue r: e
C19 co-
efficient, ceramic capacitor. If defective it should
- he replaced with a 100 mmfd ± 5%, .00075
temperature coefficient, ceramic capacitor.
FM ALIGNMENT EQUIPMENT The model 6R1 chassis should be aligned only with an AM signal generator and a vacuum tube voltmeter. Any standard brand vacuum tube voltmeter with a DC scale of not over b volts is suitable. A 3-volt zero center scale is desirable. A signal generator with a frequency range up to 110 MC. is desirable. It is possible however, to align the receiver with a signal generator going to 20 or 30 megacycles. by using the harmonics of these lower frequencies. To do this merely set the signal generator dial as follows and align exactly- as explained in the alignment instructions.
Where alignment chart specifies 109 MC., set signal generator to highest available frequency of the following:
109. MC
54.50 MC 36.33 MC
27.25 MC 21.80 MC 18.17 MC
Where alignment chart specifies 102 MC., set signal generator to highest available frequency of the following:
102. MC 51. MC 34. MC
25.50 MC 20.40 MC
17. MC
CAUTION Do not connect a ground wire to the 6R1 radio chassis.
Signal generators which do not tune to 110 MC or whose harmonics are not strong enough, cannot be used for FM alignment.
©John F. Rider
PAGE 18-12 ADMIRAL MODEL 7C64, CHASSIS 8B1
CLARI-SKEMATIX Registered Trademark
ADMIRAL CORPORATION
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© John F. Rider
--r7 E
EXTERNAL FM DIPOLE
BUILT-IN FM. ANTENNA. DISCONNECT
WHEN USING EXTERNAL DIPOLE.
L3L
6BA6
L
N
C
il
36 C3
5 2
6
LS R
e
C6
31
n
29
TC50 O /
C7
L4}
R2
JJ C4
T
R3 -6
COIL CONNECTIONS
L3
LS
LG
COLOR CODED LUG
G
ADMIRAL CORPORATION
ADMIRAL PAGE 18-13, 1-1. '°IODU 7C614, CHASSIS 8B1
6SB7-Y
-SWI
26 25
J
L8 oó SWI
61
27
;R5 C11TIL6 C13
G L7
24
CzbC26.*I
¿ ó}i L ;
C12T'1(I
TH `J
23
- /
C141 C27
J
T Ta R16
[22
SWI
Ti 2
3
:I ii-
I
I
--4 IL
T4
- - 13
I
i -
I
6BA6
- L _ I j= -i
I
J2
C15
C16
R6
2 T2 3
IL- Q'-; JT41
T5
1T sf;11
I°
J2
(----- 6ÁU6
T3
6AL5
5 2Z
1E
r 6
R7
C2i
C16_ Re - C20
RI4
R15
CI9
5Y3
L9
C27a OC27b
138
T T
T
SWITCH SHOWN IN F.M. POSITION
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 2019
F.M. A.M. PHONO
f °M orLii rid) f
10 9 8 7 6 5 4 3 2 I
PHONO o
AOµ
F.M.
NOTE: Lettered and numbered terminals in illustrations correspona to identical designations in the schematic_
6S87-Y 6BA6 61306
1. _L J
AM DET.
F.M. 2ND. I.F.
T2
66A6
- ,3
.R14 831 C1S C22
2,200 Ohms, Iá Watt 27,000 Ohms, 1 Watt, 10' .001 mfd. min., Ceramic .005 mfd. min., Ceramic (Disc'
60B 3-222 608 14-273 658 6-41
65A 10-I
FOR LATE MODELS CHASSIS 8B1
Bt
L
LIJ
1 1 1 60U6 6AL5 6V6 6SJ7 _L
MI
M2
M5
L-Jj A eZC M4
SW3
=_`1
M3
C40 (.005 mfd.....64B1-12)
6SJ7
R26 6V6
T7
8
IrC35
a C32___
R20$ C30
.
c
VOLUME CONTROL
)I 4
R24 5
33
R2'3 C33
R27
C27
R19 TONE COtITROL
R28
R22
C31 .-'/VTA-)
R25
C341-g
1C36
CIRCUIT DESCRIPTION
FM Second IF Amplifier, AM Second Detector
gfSsotririnrAdecneFr6gMetAthshUii,sos6tpioDtertrCuias(btRbieou1ians5ises. davunSofsdoeeltlrdaRf -g8AbaeisVianisCsasdeisspreeiupcedreospenn)ovddesoeelfonIsFpt.tehodainsmisspnitlgaifgntiheaeel.r
In the AM setting óf the band switch, plate
screen voltages are removed from this tube.
grid and cathode of this tube then function
AM second detector (diode) conventional manner.
and
AVC
tube
and The as an in a
VOLTAGE CHART
Measured on 117 Volt A.C. line. Volume control turned low. No station tuned in. Dial turned to low frequency end. Voltages measured between point indicated and chassis. Voltages measured with a vacuum -tube voltmeter. Many readings will be lower if measured with a 1000 ohm per-volt meter.
Readings with bandswitch in F.M. position.
6BA6
0 6.4 A.C.
o 6.4A.C. 6 S B7-Y
.3
225*
O o 6AU6
6.4A.C.
200* 0
no*
95* 6AL5
oo*
0 -5A* 0 6.4A.C. O 95* 0 0 0
0
225*
o
-.7
95* 6.4 A.C.
0 280 A.C.
280
o
A.C.
6BA6 o 64 A.C. 28
o -.2
210 6.4 A.C.
260
260 0
5Y3
BOTTOM VIEW
ld u
15
6SJ7
-.7
O 0
12
O 225 ©¡© 0
0 6V6 220 ° u u
*If voltages are measured with band switch in phono position, reading will be zero or practically zero.
©John F. Rider
RECORD CHANGER: Admiral Model RC -170A, RCD.CH. 16-1
ADMIRAL CORPORATION
ADMIRAL PAGE 18-5
MODEL 7C61.1 CHASSIS 8B1
PAGÈ 18-16 ADMIRAL MODEL 7C64, CHASSIS 8B1
ADMIRAL CORPORATION
IMPORTANT PRELIMINARY ALIGNMENT STEPS
With the gang open, the pointer should be at the position as shown in the stringing diagram, that is, the tip of the pointer should point to the space between the "AM KC" lettering on the dial scale. If the pointer is in a different position, move it by hand while keeping the gang open.
Check the set screws that hold the tuning drum to the shaft to see that they are tight and that the drum has
not slipped on the shaft. The correct position of the drum can be seen on the stringing diagram. With the gang wide open, all FM tuning slugs should be % inch out of their coil forms. The AM -RF tuning slug (adjustment "O" in the trimmer location diagram) should be 1 inch out of its coil form. If there is any serious deviation, or if there has been any tampering, turn the adjusting screw until this distance is corrected. (See paragraph on tuning slug replacement.)
FM IF AND RATIO DETECTOR ALIGNMENT
Solder output indicator leads in place and keep them well separated from signal generator leads and chassis wiring. Band switch in FM position (red signal at MC on dial).
While peaking IF's, keep reducing signal generator output so VTVM reading is approximately +1.5 volts DC with exception of Step #5. Speaker must be connected during alignment.
I.F. SLUG INFORMATION
To avoid splitting the slotted head of the powdered iron core tuning slug in the I. F. transformers, use a screw-driver with a blade ßiá" wide for I.F. alignment.
Under normal operating conditions, mis-alignment of slug-tuned circuits with age is slight. Therefore, realignment of the I.F. transformers should be accomplished by only a slight adjustment of the slugs.
The slug -tuning cores in the FM-IF transformers
can be replaced. Remove the transformer from the
chassis and the unit from its case. The top slug can
then be removed from the coil form. The top slug must
first removedslu in order to
the bottomn slug.
cl The bottome
then
he throughremove
of
form and out the top.will through the bottom end of the
(The slug twilllnot oil form).
ppass
Due to the probability of breaking off the wire leads on the coils, slug replacement in the AM-IF transformers is not recommended. Replace entire IF transformer.
For slug replacement in the ratio detector trans former, see the I.F. slug information on page 9 of the 9A1 service manual.
Before proceeding, be sure to follow all steps listed above, under "Important Preliminary Alignment Steps." Steps 1 and 2 may be omitted if set is not badly out of alignment so signal comes through in Step 3
Connect
Generator Receiver
Signal Generator Frequency Dial Setting
Output Indicator and Special Connections
Adjust as Follows (very carefully)
Thru .01 cond. 1 to 2nd IF grid
(Pin #1 of ____ 6AU6 2nd IF)
2(Pin Thru .01 cond. to 1st IF grid #1 of 6BA6 1st IF)
10.7 MC unmodu-
fated.
.P
To pin # 1
3
of 6BA6
"
R.F. amplifier"
Tuning gang wide open
..
,,
Connect 3300 ohm carbon resistors across secondaries of both FM -IF transformers Connect VTVM (DC probe) from oint "W'
to ground. (See Fig. 7.)-
Pl
"
*If not enough IF signal comes flirt]during
this step, ground pin #5 on the i SR7-Y.
Leave generator set at 10.7 MC until step 4c.
pr"imAa"ry()raftioor
detector maximum
reading on VTVM.
Iron cores "B" and "C" (2nd IF trans.) for maximum reading on VTVM. Iron cores "D" and "E" for maximum on VTVM. Readjust A, B, C, D, E, for maximum. (Keep reducing generator output to keep
VTVM at 1.5 volts).
a. Remove 3300 ohm resistors from IF transformers.
b. Reduce output of signal generator until VTVM reads exactly +1.5 volts DC.
c. Tune generator frequency above 10.7 MC until VTVM reads exactly +1.0 volt.
4
Pte. Note exact generator frequency. Extreme care in reading this is essential. d. Tune generator frequency below 10.7 biC until VTVM reads exactly +1.0 volt. Note exact generator frequency. Extreme care in reading this is essential. Add generator frequency in step c to generator frequency in step d and divide by 2. The result is the center frequency of the IF curve to be used in step 5. See example
on next page.
f.
Tune generator frequency above and below 10.7 MC VTVM at different frequency points until you have a
and note voltage reading on good impression of the shape
of the selectivity curve. If you have two peaks as in Figures 5 or 6, note readings
(voltage) of both peaks. If one peak is over 20% higher than the other one, it will
be necessary to realign IF's. illustrated by Figure 6.
A selectivity curve that would require realignment is
Center of IF
selectivity
Iron core "F" (ratio detec-
curve per Set pointer
tor secondary) for zero
5
step 4e to upper Connect VTVM (DC probe) from point "X" voltage reading on VTVM.
above. See limit on
to ground. (See Fig. 7).
(The correct zero point is
"EXAM- dial.
located between a positive
PLE" on
and a negative maximum.)
next page.
If any adjustments were very far off, it is desirable to repeat steps 3, 4 and 5. **Do not feed I.F. signal into converter grid as this will cause mis-alignment.
F.M. ALIGNMENT
The model 8B1 chassis should be aligned only with an AM signal generator and a vacuum tube voltmeter. Any standard brand vacuum tube voltmeter with a DC scale of not over 5 volts is suitable. A 3 -volt zero center scale is desirable. A signal generator with a frequency range up to 110
MC. is desirable. It is possible however, to align
the receiver with a signal generator going to 20 or 30 megacycles, by using the harmonics of these lower frequencies. To do this merely set the signal generator dial as follows and align exactly as explained in the alignment instructions.
Where 'alignment chart specifies 109 MC., set signal generator to highest available frequency of
the following:
109. MC 54.50 MC 36.33 MC
27.25 MC 21.80 MC 18.17 MC
Where alignment chart specifies 104 MC., set signal generator to highest available frequency of the
following:
104. MC 52.00 MC 34.67 MC
26.00 MC 20.80 MC 17.33 MC
Signal generators which do not tune to 110 MC or whose harmonics are not strong enough, cannot be used for FM alignment.
In FM alignment, it is essential that every stet,
be followed. Especially import?nt is picking the center of the I.F. curve . (step 4 in the FM -IF alignment instructions). During this portion of the alignment it is necessary to tune the signal generator very carefully; it may necessitate having to estimate the dial readings to a tenth of a division.
TRIMMER IDENTIFICATION CHART
Trimmer Symbol
Function
A . T3 Discriminator transformer
B T2 2nd IF transformer (FM)
C T2 2nd IF transformer (FM)
D T1 1st IF transformer (FM)
E T1 1st IF transformer (FM)
F T3 Discriminator transformer
G L6
H .... L5
FM oscillator coil FM RF coil
I L3 FM antenna coil
J T5 2nd IF transformer (AM)
K T5 2nd IF transformer (AM)
L T4.. .1st IF transformer (AM)
M T4 1st IF transformer (AM)
N C2b....AM oscillator trimmer
O L4 AM RF coil
P C2a....AM antenna trimmer
POINTER SETTING
With the gang open, the pointer should be àt the position as shown in the stringing diagram, that is, the tip of the pointer should point to the space between the "AM KC" lettering on the dial scale. If the pointer is in a different position, move it by hand while keeping the gang open.
REPLACING TUNING SLUGS With the gang wide open, all three FM tuning slugs should be % inch out of their coil forms. The AM-RF tuning slug (adjustment "0" in the trimmer location diagram) should be 1 inch out of its coil form. If it becomes necessary to change a tuning slug, proceed as follows : Set the gang to its wide open position. Unsolder and remove the old slug. Set the slug adjusting screw about half way down. Place the new slug in its correct position. Solder in
place making sure that it does not slip during the operation and that the slug wire is straight.
Realignment is necessary after slug replace-
ment.
STRINGING DIAGRAM
FM AM KC
CORRECT POINTER POSITION
GANG IN OPEN POSITION
©John F. Rider
©John F. Rider
ADMIRAL PAGE 18-17
ADMIRAL CORPORATION MODEL 7C64, CHASSIS 8B11
SETTING SIGNAL GENERATOR TO CENTER OF IF SELECTIVITY CURVE
-
CAUTION: Due to the difficulty of setting a signal generator to the accuracy required by this operation, ex-
o >
treme care must be exercised in making each setting. Otherwise, improper alignment of the ratio detector and
le
consequent audio distortion will result.
K. --f K.C.
I0 7 M.C.
g
T--- K.G. KC.
Q
10.72 M.C.
EXAMPLE: (See Figures 1 and 2.)
Voltage reading in Step 4b is -F 1.5 volts.
Generator reading
frequency
of + 1 volt
on low side
DC = 10.640
of 10.7 MC.
MC
for
a
Generator frequency on high side of 10.7
ing of + 1 volt DC = 10.800 MC.
MC
for
a
read-
10.64 M.G. 10.8 M.C. FIGURE 1.
10.64 M.C. 10.8 M.C. FIGURE 2.
TYPICAL SELECTIVITY CURVES
Center frequency is obtained by adding 10.640 and 10.800, then dividing by 2. For these readings it will
be 10.72 MC.
swlV.6 Set generator frequency to 10.72 MC as this is center of selectivity curve as shown in Figure 2.
CORRECT
CORRECT
INCORRECT
Note: Numerical verner dial readings may be used instead
of MC.
FIGURE 3.
FIGURE 4.
FIGURE 5.
FIGURE 6.
TRIMMER LOCATION
r9 n
n n
i rr1
ii
PILOT
LIGHTS
ñ
PIN »I
3
A4 6AU6'
ll --11
PIN
B
2nd.I.F.
elf,,,,,lI
/
M PINI p
Ist.I.F
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PINR.F..1
PIN '8
re ®
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e 68% 1J RF
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q I
I
:i
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BOTTOM VIEW
F.M. ON D. A.M.
L
TOP VIEW
Fig. 7
Fig. 8
FM RF ALIGNMENT PROCEDURE
Connect Signal
Generator
Generator
Frequency
Receiver Dial
Setting
Output Indicator and Connections
Adjust as Follows
6
Thru 250 ohms to FM ant. terminal,
109 MCt Tuning (unmodu- gang
lated). wide open
Connect VTVM (DC probe) from point "W" to ground.
*G for maximum VTVM reading.
104 MCt
*Tune in generator signal
7
"
(unmodu- 104 MC
lated).
JP
on receiver. Adjust H and
I for max. VTVM reading.',
* It is advisable to adjust generator output so VTVM readings do not exceed approximately + 1.5 V. DC after peaking. t If your signal generator does not reach this frequency, use harmonics as described in "FM Alignment"
AM ALIGNMENT PROCEDURE
Use regular output meter connected across voice coil.
Be sure both the set and the thoroughly warmed up before
signal generator are starting alignment.
Turn receiver Volume Control full on.
Use lowest output setting of signal generator that gives a satisfactory reading on meter.
#8)wide Connect
Signal Generator
Dummy Antenna Between Radio and Signal Generator
Signal Generator Frequency
Receiver Dial
Setting
Adj. Trimmers in Following Order to Max.
Set Band Switch to Broadcast Preliminary Alignment Steps."
Position (center) Loop antenna
and be can be
sure to follow instructions disconnected from chassis in
under Steps 1,
heading 2 and
"Important
3.
1
(P6SinB7-Y
.1 MFD
455 KC
Tuning gang open
J, K, L, M
2
To loop ant. terminal
Direct connection
1620 KC
Tuning gang wide open
N
3
To loop ant. terminal
Direct connection
1400 KC
Tune in signal
O
Set Receiver Chassis on table next to back of cabinet. Connect Loop Antenna to Receiver.
4
To loop ant. terminal
10 MMFD (Or wrap several turns of generator lead around white loop lead.)
1400 KC
Tune in signal
P
©John F. Rider
www.americanradiohistory.com
PAGE 18-18 ADMIRAL
MODEL 70614,
ADMIRAL CORPORATION
CHASSIS 8B1
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©John F. Rider
www.americanradiohistory.com
ADMIRAL PAGE 18-19
ADMIRAL CORPORATION MODELS 7G11, 7G12, 7G13,
7G14, 7G15, 7G16, CHASSIS 7G1
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©John F. Rider
RECORD CHANGER: Admiral Model RC-181, RCD.CH. 18-1 Admiral Model RC -182, RCD.CH. 18-10
www.americanradiohistory.com
PAGE 18-20 ADMIRAL MODELS 7G11, 7G12, 7G13,
7G1I4, 7G15, 7G16
ADMIRAL CORPORATION
ALIGNMENT
Connect a low range output meter across terminals of speaker voice coil. Turn receiver volume control to maximum; tone control to full treble. Align dial pointer for proper setting, as illustrated in dial cord stringing and pointer setting diagram. Allow 10 or 15 minutes for both signal generator and
PROCEDURE
receiver to warm up.
Use lowest generator input signal, capable of producing an adequate output meter indication. Proceed with alignment as outlined, being sure to use an alignment tool or screwdriver, having the proper size blade, so as to avoid damage to IF tuning slugs.
Repeat adjustments to insure good results.
Step
Dummy Antenna in Series with
Signal Generator
Connection of Signal Generator
(High Side)
Signal
Generator Frequency
Receiver
Gang Setting
Trimmer Trimmer
Type of
Description Designation Adjustment
1
.1 mfd. condenser
Stator lug, antenna section of tuning
condenser
455 KC
Gang fully open
2nd IF and 1st IF
A, B, C & D
Peak for maximum
output
2
.1 mfd. condenser
Stator lug, antenna section of tuning
condenser
1600 KC
Bang set at
1600 KC
Oscillator (on gang)
E
Peak for maximum
output
Set Receiver Chassis on table next to back of cabinet. Connect Loop Antenna to Receiver.
3
Place generator
lead close to loop of set to obtain adequate signal
No physical connection (signal
by radiation)
1400 KC
Tune in generator
signal
Antenna (on gang)
F
Peak for maximum
output
Note: The B and D adjustments must be made from the underside of the chassis.
TUBE AND TRIMMER LOCATIONS
THIS CHASSIS USED IN EARLY
PRODUCTION ONLY.
RADIO TILT-OUT DOOR ADJUSTMENT
(For radio tilt-out models only) If the door on the radio tilt-out assembly is shifted to one side, readjustment of the tilt-out arm will correct the difficulty. If the tilt -out door is too far to the right, the right-hand tilt -out arm can be sprung. If the door is too far to the left, the left-hand arm can be sprung. The tilt-out arms are sprung by holding the lower end of the arm against its bracket and prying the arm toward the chassis with a screwdriver. The screwdriver is used as a lever between the tilt -out arm and the side of the radio compartment. In the event that the bottom edge of the radio tilt -out door rubs, it can be planed off slightly. Care must be exercised in doing this in order that the door is not marred. Hold the plane flat against the beveled bottom edge of the door while planing off a small amount.
©John F. Rider
POINTER ADJUSTMENT
With the gang fully closed, the center line of the pointer should line up with the ends of the two parallel lines that are inside of and below "55" on the dial scale (see diagram). If it does not, move the pointer by hand to the proper position while keeping the gang closed.
www.americanradiohistory.com
ADMIRAL PAGE 18-21
ADMIRAL CORPORATION MODELS 7011, 7012, 7013, 70114, 7015, 7016
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.k; A. .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
E
O-. a! m n m 50 5. .0
N C CK
CK CK CC CK CK CK CK CK CK
CK, CK
a Ce CK 0e CK
r- N- 00
O N
5.
a N
O
m
N
a
a
N
a
a
m N
a N
N
50
O r
.-. .O
mmmmmmmmmmmm U
mm
'.505.5000a5000505000a '050505000 `0 .O .O `0 .O .0 .O .0
A50A`
. H
W
Ó.» Ó-.r ^. W
>0..00»000»0» fi. t> -c..., CZ
á Q
'
.ai w 6 ÿ á p. 4
a CY CL CL CL
G. G.
" " ú
..y.
E
c U. o >
°
íyi 5i
Ó
á ú 5i O> Ó
0
" W
C
E M
U V"a"
._
k
C%
2.É._c
no>0
w
-7-2'2`°°"'.00000 O
O . OQ.
tió N .ó
.
.
a50,N00nn
. .m
vl V'..ÿY.011
ww
-t É`nYo r Ev:ETE) ti E E É É E É
ÿ`n
vE0. EON0 EOO OO NO NO OO rN.NOB0E0n2QmOQ
E E
óó
O Ñ
UUNUmU00UvU..0UnUmUPUOU-UNUmwUAmU5w0
A
50
U
M b
UU
V O M
aa a NIT O. mN mN OmPamm an o
O ON SO N
©John F. Rider
www.americanradiohistory.com
PAGE 18-22 ADMIRAL MODEL 7T03, CHASSIS 5Cl
ADMIRAL CORPORATION
126E6
12BA6
12
pió
5
12AT6
5065
13
2 4 C9
K
rHR2
35W4
Ce
R7
RI2
C14
C14
c
I.F.=455 KC
CHASSIS-OND _
SWI
C13 12A16
1213E8
12BA8
50135
STRINGING & ALIGNMENT DIAGRAM
11/8
3OSCILLATOR COIL LI ANTENNA COIL
t
NOTUTUNER IS SHOWN IN WIDE OPEN POSITION 1630 K.C. SETTING
ALIGNMENT PROCEDURE
Check tuning mechanism and pointer adjust-
ment to pointer
see that the pointer travels to each travel stop I and J (see stringing
diagram). H until the their coil
With the tuning
forms.
pointer at slugs extend
J, adjust G 1-1/8" out
and of
Set receiver tuning mechanism at J (wide Cgoosropeuinertdnn)p)eutcf(trapnoimdnmesti#egvt7rnho)eallu(tm5wheg0ireBto5nhcueogrnsphatletrarooti.lree1smof(fDupudCbil.pnlubtlo#no5.)ctkoitnoCtghoecnhncae1osc2nsBtdEie6sna.-n
top
Set and
gbeontetroatmoroftboot4h55roKCundandI.Fa.djutsrtansslfuogrsmerast
for maximum.
VOLTAGE CHART
fl (9 AC. LINE USE VTVM MEASURE TO CHASSIS
I2AT6
5085
12BA6 35W4
128E6
83
96
83
A.C. 33 94 ra 1.6
A.0 _2
AC. 33
105
A.C.
23
1110
23
" A.C. 96
A.C.
94 112 112 A.C;.
12A.C.
A.C.
A.C.
n1a630CleoaKndCn.ectthArdosjuiuggshntal10og0secmnimelfrldaa.ttoorrantdtroismremetecregievn(eenrreaataronertstent-o
end 540
of KC,
chassis) for set receiver
maximum. tuning
Set generator mechanism closed
to
and adjust G (oscillator slug) for maximum.
Repeat both adjustments.
Set generator ing mechanism at
to 1630 KC, set receiver tunJ and adjust antenna trimmer
(one inch from end of chassis) for maximum.
Set generator to 1300 KC, tune receiver and adjust H (antenna mum. Repeat both adjustments.
in generator on slug) for maxi-
Symbol
CONDENSERS
Cl.... .00036 Mfd. Mica C2.... .002 Yfd. Mica C3.... 105 Mmfd. Ceramic C4.... 106 Mmfd. Ceramic C5.... 106 Mmfd. Ceramic C8.... 105 Mord. Ceramic C7.... .05 Mfd. 150 Volte C8.... .00025 Mfd. 500 Volte 09.... .002 Mfd. 500 Volte C10... .0006 Mfd. 500 Volts
-
Cil... .005 Mfd. 500 Volts
C12... .002 'ltd. 500 Volts C13... .05 Myd. 400 Volts C14a.. 30 'ltd. 160 Volts) Electrolytic 0146.. 20 Mfd. 150 Volts) C1ba.. 130 Mmfd. (0.o.) Cl6b.. 120 Mmfd. (Dec.) C15c.. 140 Mafd. (ant.) C16... 76 Mmfd. C ramie C17... 100 Mmfd. Ceramic
Symbol
COILS AND TRANSFORMERS
L1.... Coli, Antenna
L2.... Coil, Cathode Choke L3.... Oscillator Coil Assembly T1.... Transformer, Z.P., let T2.... Transformer, I.F., End T3.... Output Transformer
Part No.
65B 5-24 652 6-37 66B 8-9 6.2 6-9 652 6-9 66B 6-9 64A 4-3 64A 3-3 64A 3-6 64A 3-4 64A 3-9 64A 3-6 64A 4-1 67A 11
66A 14
652 6-11 662 6-3
Port No.
AC105-3 AB103.7 AC101-3 72B 14 72B 14 790 2
Symbol
RESISTORS
al.... 22,000 Ohme 1/4 Watt R2.... 1 Megohm 1/4 Watt R3.... 10 Megohme 1/4 Watt R4.... 220,000 Ohms 1/4 Watt R5.... 560,000 Ohm. 1/4 Watt R6.... 160 Ohme 1 Watt R7:... 1,000 Ohme 1 Watt 88.... 1/2 Megohm Volume Control Al
ON-OFF Switch 89.... 330 Ohms 1/4 Watt R10.., 1.5 Megohme 1/4 Watt R11... 3.3 Megohme 1/4 Watt R12... 33 Ohme 1 Watt
Deecrlptlon
MISCELLANEOUS
Spring, Dial Cord Tendon Spring, Hairpin for Co11 Mounting Tuner Aeeembly, uomplete Washer (.0.), for tuning shaft
©John F. Rider
Port Nc. 6CB 26-223 608 26-105 609 26-106 608 26-224 60B 26-564 608 28-1 60B 28-5 752 1-4 608 26-331 608 26-155 609 26-336 6013 28-6
Port No. 190 1-4 190 2-1 A1170 4a 4-1
Description
1.ICO:D.L.;1130US
Cabinet, Ivory (7T03E)
Cabinet, Mahogany (7103M) Cabinet, Black (7T030)
Cabinet, Back (includes line connector and cord)
Carriage Slug Mounting (with pulley) Dial Background Dial Cord (24) Dial Pointer
Dial Scale Guide Rod, Slug Travel Knob, Ivory
Knob, Mahogany
Knob, Black only Pilot Light Bulb #47 Plug, e.C., Male (assembly include.
easels back -plate)
Plug, Coll Mounting
Shaft, Tuning Slug, Tuning (epeclfy color code of
old Slug)
Socket, Pilot Light and Lead, 10 long
Socket, Tube Speaker
Speaker Orille Overlay (Ivory) Speaker Grille Overlay (Red) Speaker Orille Overlay (Green) Speed Nut, for Guide Rod
Iart ::o.
34C 4-1 34C 4-2 34C 4-3
..1412 98A 36-1 22a 6 50.. 1-3 25a 17 212 3 28A 5 33A 3-3 33m 3-2 33A 3-5 810 1-8
A1169 32A 3-1 28A 4-1
712 1-1 82A 2-1 87A 3.3 788 11 23C 1-1 23C 1-2 23C 1-3 2A 10-1
6667
C2
7 CO
e
.SWIa
R27
I CII
OUTPUT TO 7AI MONO
MO
NOTE:
AGPNONO MOTOR LEADS CONNECTED ACROSS PRIMARY CIRCUIT OF T3
it ON PHONO
for PW
AFA
SWITCH
PHONO PREAMPLIFIER CIRCUIT FOR 7074 MODEL.
SYMBOL
RI. R2 R3 R4 RS R6 R7 R8 R9 RIO 1111 R12 R13 R14 R15 R16
R17 R18 R19 R20 R21 R22
I123 R24 R25 R26 R27 R28 R29
R30
1131
R32
1133
Cl
C2 C3 C4 C5
CG (.17 CR (`4
C10
CC1l1l
C13 C14 C15 C16
RESISTORS
DESCRIPTION
PART No.
1 Megohm, % 47,000 Ohms, 10,000 Ohms,
V1,AW4 WWattaatttt
GOB 8-105 GOB 8-473 GOB 8-103
217,0.00000OOhhmms.s,341/-.WWatattt
6011 R-102 60B 8-273
11410,5700,,000000O00OhOOmhhhmsmm,s,3ss4,,%12W,4 WWWataatatttttt
GOB R-102 GOB 8-101 6011 R-473 GOB 20-153
244143.9.7772M0.00,MM00eO00geeh0oggOmhoOohmshhh,mmm,m1ss3s,s,4W,,3435W3a444tWatWWWttaaaatttttttt
GOB R-225 60B 8-473 GOB R-475 60B 8-105 60B R-474 60B 14-391
2 Megohms, Volume Control &
On -Off Switch SW3 (Tapped
at 1 Megohm)
47,000 Ohms, 34
Watt
76B 2-4 6011 8-473
621111112142422302008.045720777M(M0,000,0,0,00I000M,,M,,,,Mn000000000ee0O00000000gg0eeeOh000T00googgOOmOOhohhuoOOOOoOhhmhmmhshhnhhhhhmm,hmmmmism,smmmmnm,3ss,sss,g34s,,ssss,,,s4,T3.,,,3,4W43E3333oW35444%3344343ny44W4W44aWWWWeeWaWtWWWWWattaStCaaaatatatotaaataattttotttttttttctttntttttkterot)l..7G66G66666666666500000000OO000001BBBBBBB8BBBBBBB3
1-11 8-684 8-224 8-103 8-105 8-106 8-101 R-153 8-223 8-104 8-104 8-474 8-205 8-475 8-274 8-273
CONDENSERS
0005 mfd., Mica 30-135 mmfd 00015 mfd., 3%, 60-170 mmfd 00098 mfd., 3%.
Part of SSiillvveePrr aMMrtiiccaoa.f.
65B 66A 65B 66A GIB
5-27 17-1 1-37 17-1 1-42
115-225 mmfd 5-50 mmfd., Silver
66A 18-3
Ceramic..66A 19-1
00025 mfd.,' Mica
65B 5-22
.0001 mfd., Mica
65B 5-17
0006 mfd., Mica
65B 5-27
0005053mmmfiddfd..,,.,660M000icVVaoollttss,,
PPaappeerr....666555AAB
5-39 2-24 2-24
10 mmfd., Mica 05 mfd., 600 Volts, 5-50 mmfd., Silver
Paper..6655AB
5-1 2-24
Ceramic..66A 19-1
©John F. Rider
R.F. REAR
Swk
e e
6SA7
ADMIRAL CORPORATION
6SK7
TZ
6S07
.,s 6V6
MI M2
T4
R1f
MAP
Cas
it
03A. C7Ac
ADMIRAL PAGE 18-23,24
MODELS 7T09 -S, 7T09 -X, 7C71í,
CHASSIS 7A1, 7A1A, 7A18
ri
5Y3
6V6
14.8
6.3 A.C. 283
VOLTAGE CHART
r1q1
11
p
11
6U5
,O 30
F10 6.3 A.C.
1.4 +(
11
-14* 6SG7
122
6.3ÁC
155
291
281
6:307
293
-.6*
6SK7
6SA7
lap 6 3 A.C.
O: t+ti 8
290
BOTTOM VIEW
-1.4* ii* 1304HI
* Practically zero if readings are taken with 1000 ohm -per-volt meter.
4' Zero or practically zero if readings arc taken in phono position.
BAND SWITCH IN B.C POSITION (BANDNI) RSA
C4
.5v2w2
ON TUNING EYE SOCKET
C47
CAS
ó
CN2
Lnó gL12
o
5247 Z
1 i FEED PACK COILS LK A LN WOUND
= ON L7 AND CIO 5EIPECTWELT
O asaz ASA7 ISK7 4307 SRS SUS
CONDENSERS-Continued
SYMBOL
1(1.187
1]19
020
DESCRIPTION
PART No.
00013
10-135 60-170 00075
mfd., 3%, mmfd mmfd mfd., 3%,
SSiillvveePPrr aaMMrrttiiccaooaff..
658 66A 66A
658
1-41 17-1 17-1 1-33
C2l
50-160 mmfd.
66A 15-2
(722 C23
024
1:25 (:26 C27
00005 mfd., Mica
658 5-11
UIan.Fdsue.seddt.)rN.o0O00a0no500Sn5l.00ysmmm11f447offfw2dddrmmBm...i.,,t3ffhedd6660000r..N.,.000oMMIVV.V.OFiiooco7c.mllaal2tttiBssstt,,,rt1ea1PPPdnaaaaspppnfieoeefdrrrr..mNN..66.o6oePP55:..r,aAAa.s177rr.2tt2B2B22aoo-1--r2ff2223e9444TT1I
028 029 030
.05 mfd., 690 Volts, 00014 mfd., Mica 00014 mfd., Mica
Paper..
6PP5aaArrtt
2-24 of T2 of T2
0001 mfd., Mica
65B 5-17
032 ('33 C34
CCCC33335666abc............
C37 C38 (739 C40 C43 C44
.233..00000001000000112120020m50,mm1mmmmmmn2fm5fffdffffffdddmdddddd.f...m,.d.....,,.i,,,,.,d4.i244,d0666666.500,0000000.600,000000M0VVM0VVVVVVVVoiocVooiloooooolactlltsolllllltatsttt,tttssl.ssssss,t,.,,.,.EsP,EEPPPPPPlaePllaaaaaapeecappppppcecpteeeeee.ttrerrrrr...r....r..................66666..6. 666G555555555SAA6AAAABABA7C5522222222------6----2212222222-217322532332
(745
.0018 mid., Mica
65B 5-36
C46
00012 mfd., 3%, Silver Mica. 65B 1-10
C47 C48
5-50 mmfd., 00015 mfd.,
3S%il,veSrilCveerraMmiicca...6665AB
19-1 1-37
C49
115-225 mmfd
C50
30-135 mmfd.
Part o6f66A6A181-37-1
C51 C52
00009 mfd., 20-75 mmfd
3%,
SilvePr aMrticoaf.
65B 66A
1-40 17-1
C53
300 mmfd., Mica
65B 5-23
C54 C55 C56 C57
1...120000mm20 ffmmdd..,fm,d44f..0d00.04, 0VVM0ooVillcttosas,l,tspP, aaPppaeeprre...r..6.6665555AAAB
5-33 2-10 2-16 2-25
COILS, TRANSFORMERS, Etc.
CCHHII, ...
L3
Choke, Filter CChoollk, eB, rCooaidl cast
74A R
Antenna..
AB .AB
101030-6- 1
L2 L3
Coil, Coil,
SShhuonrtt-Wave
R.F
AD 102-7 AD 102-6
L4 L5
Coil, Coil,
SBhrooartd-cWasatvRe .AFntenna.AADB
102-6 100-6
COILS, TRANSFORMERS, Etc.-Cont.
SYMBOL
DESCRIPTION
PART Na
LL1L7LSSLWl.R07691WW.S1SSSh?1lelllT1uuuungabggg,.O,,.,....IIIIrrrrrdooooCCCCCAOCCennnnooooosroon((eiiiiiiSiiCtCCllllln.CCll.,,,,,e,,gloooSocOSoSBBSSOrrorreseeesShhheesarnceeceououlndt.st.u((((ianrindtfffofogtFFdooottfotnn-s#roceerrrWro2aeeSoomLLLLCsddfapf2Ot7I3bhbve,,),BBCOaceaasLLLsihaacccsf65Os4nnaikkyc,,i,lsddssi..lLlsCLL..acsslPPiFwwait9s1o8laoatrll0)iio)roaorrFtt.).tt.rcctr.n...r.o.hh....ootoCAr)7ffAA777.no\1111CDCDAAAdtBBBB)eCDl..)11.1111110000-1--11-11319226000--7--17625275-6--655B9
SW1c... R.(FF.aSrethcteiostn forof mBaCnhdasswsiistcFhront).
SSTWWi 32........ SSTwwraiinttccshhfo,, rORmnaed-rOi,off-1PshtoIn.Fo....72B
Note:
Use Use
72B11 72B29
wwiitthh
72B13 2nd 72B 30 2nd
II..FF..
7P6aArt
13-1
of Rib
11 or 72B29
only.
only.
T2
TProawnesfroTrmraenrs,.,21n1d0-I2.F20..7V2oBlt 13 or 72B 30
(for 70AR1A)
8013 3
T3
Power(for7TAr1a)ns., 110 Volt
BOB 4
TS4ppeuatkeTr r(a6Tn"rsxaff9noo"srrfmeOoiervtmrhalee(rrPu,.sMOed.u)tapInnutdTOabulte-91ìA 29
Models 7T09 -S and 7T09 -X)
780 16
SpTeraaknesrfo(1r0m"ePr .M(U.)seadndinOCuotnpsuotle
SpM(efaookrdee7rl8E7BCx27te24n)SsipoenakCeor)rd
78B 22
SBA 19
TUNER PARTS
DESCRIPTION
TSPSSPpupplluurnrriiggiinnnnggg((gff.ooWCSHrrlhiaapmmasirfhoo(ptefuuiornnnrt(ti(ifmnnfogogroruLmLmn23ot,,oiunLLung64nt,,itLniLL2ng19,g0)c)cooilisls)) L6, L9)
SPISdhhlluaoegfurtlPd((fuefoorlrlreSmyTcroueunwnetr(ifnHogroLuIdsI,ilneLrg5),PLu7l,leLy8))
PART No. 28A 13-1
32A 3-3 4A 6-5-0 19A 3-1
32A 24-t
18A 5 32A 3-1 27A 21 27A 20 28A 12
CHI
T3 2so M3
OFF
M4
Measured on 117 Volt A. C. Line.
No station tuned in. Dial turned to low frequency end.
Radio readings with bandswitch in broadcast position (Band #1).
(") Readings taken in phono position will be approximately the same except
1.,r those indicated with a double asterisk
in the voltage chart;
these readings will be zero or practically zero.
Voltages measured between point indicated and chassis.
Voltages measured with a vacuum-tube voltmeter. Readings taken with
a 1000-ohm-per-volt those marked with
meter will be approximately the same except for
an asterisk' in the voltage chart; these readings
will be, practically zero.
FUSE
MISCELLANEOUS-Contiuued
DGDDEurrSiiiCdvvReeeIPPPPTuuIlOallNllteeeyyA,, sFRsreeoamnrbt ly SSSttpruradipn,sgS,,lTuSgutrn-aAeprdjusting
PART Ne. 27A 18 27A 19 A 1279 15A 107
,19A 14 27A 4
DIAL PARTS
BBrraacckkeett ((RLeigfth)t)fofrorDDiailaGl Glalsasss Dial Scale IInndd(oiiccnaaBttooarrnALdsirnwmkit&chHSuhbaft) Socket, Dial Bulb
PDSDpoiiaraiillnnCBgte,ourrlD.db..i.aN(,1lo0C.0o4ir7ndch(2esu)sed)
Drum, Dial
15A 99-1 15A 99-2 21B 28 A 1287 15A 102 82A 6-5 81A 1-5 25A 1-3 50A 1-3 19B 1-6 17A 11
MISCELLANEOUS
M 1
M2 M3
SCSSpopp((eneeffaaeaookckkrreteeor77r7rr8T8,SPPBC0Lol92l1uucX2i6ngkg,esesptp7CeTeoaa0rk9kdSee,rr)lo)enslsy)c.o.8lSl888a878ArAAA
4-3 4-3 14-2 6-2
514
Connector,
Line Cord
7TO9S
onlq)..88A
6-1
*Cabinet (forfmodels 7T09X,
Co7lTlaOr9SfoOr nlilnye) cord (for Models
35D 7-2
Fu7sTe,093 Xa,m7Tp0-92S50OnVly)
32A 19 84A 1-14
Fuse Holder
84A 3
Knob, "Volume"
33A 17-2
Knob "Tone"
33A 17-3
Knob, "Rad-Pho"
13A 17-4
Knob, "Band Switch"
33A 17-5
Knob. "Tuning"
33A 17-6
SSecStretSwrac,pre#sw)2-,566-x332x41R/4HM(foSr
(for Tuner Indicator
20-125-C2-2
Link)
IA 44-7
Set Screw, Bristol, #6-32x5/16
(for Drive Pulley)
lA 44-10
SnIanpdiBcauttotornL(infokr) Tuner Housing.
13A 1-3-59
Socket & Cable for Magic Eye
87A 1-1
Socket, Tube (Octal)
87A 5-1
Speed Nut (Tuner)
2A10-1-59
DWWWWWESaaaaaCsssssRhhhhhIeeeeePrrrrrT,,,,IOF"FFSNCipiebb"lrrtirene((fgfo((ofrf(orofTrorKurTCnnuT7oi,nnubeCgnsr)1in6SS,ghtCraSaf4pth7)sa))ft)
PART No. 4A 4-1
5A 4-1 5,A 1-11 5A 1-16 4A 6-3-0
Parts listed below used in Model 7C74 only.
PHONOGRAPH PARTS
TpMMCDIIMPddiaie56rlNcollritneekvttoorrtsOeuetreWWprluDi:patChhoitSsH.eesaceteeCbPienllAliaegrcs((reek44stacre00unioAm77pddrsg.dBBCsPe3el(alcumuabMMhngnlbaeddoolnyett&goorNerrPt))eruelrmudnlgaetanbulael)..fGGo4AGGArA4400440c07001110oBB00343AmAA01755213p3-6l1227e737-t91e
TTSTThiiiielll(S(otttPRpuROiOOrelcodicukuundeottutgrrp)HST(dEFpiiAeySrnroieugrBnmnpegBatprAooSo(lr2fsittdsUcee(Sh")fmioadlbrneolg)Tnyegirl))t Out
AC 118-1 AC 118-2 19A 15-1 lA 87-1 15B 126 28A 22
MISCELLANEOUS
M7 M8
M9
SPPohhPCPcoohrakennobeaoonltem,oPPp(3rrIAleenpiaaftprtimmoaeucnrptp)hgllCiieffhdi(ieePartrsrosePPiasoom)wwpeelrrifieN8r9SAA
5-9 23-2
Cable (Attached to
3DDSSSWCDDPPT*n1ophSehiiooa1ooehnOorsmcrtouo0booooepiefkuplnnrBurcrorTinerenplcogetiu,AAadtiBBpaln,,ip-rnieSodvbrurMegrrTArmtmereaa.hdt()i()d)utfrnccoiEdfaeoJebokkotg(cjy(iloarrePurrnleeRdl)heicr.ieslttnrepagceykfet(dSBghshhtci(m,(a,sno,oreialotmSifi(e,gncniisslgfvdnhftkos)eponohteieiie(a;llerase(rtsfidtcrfl;tfaoncPdooCmuiarrrecceennrrnerihaeaoredbencesdaabnrau)ehetaOsdimt(ncLracnsesfjuetctsieuoireepiistdoss)onnatrspl)tiennidtgtsufciedsss)intoairie)dtg)fntrioeoncnoabt .o)bf.eAA8888AA8R11179996A8961o11rAAAAABAA5el441d133p6858915163117a226--35c--3-i642201-ra-21e5bdi-.
RECORD CHANGER: Admiral Models RC-170, RC-170A, RCD.CH. 16-1
ADMIRAL PAGE lti-22)
AlMIRAL CORPORATION MODEL 7T09 -S, 7T09 -X, 7074
CHASSIS 7A1, 7A1A, 7A1í3
TRIMMER IDENTIFICATION CHART
Trimmer Symbol
Function
A, B
Tl 1st I.F. transformer
C, D
T2 2nd I.F. transformer
E
C49 Osc. trimmer (Band #1)
F
L8 Osc. slug (Band #1)
G
C21 R.F. trimmer (Band #1)
H
C6 Antenna trimmer (Band #1)
I
Ll Antenna slug (Band #1)
J
L5 R.F. slug (Band #1)
K
C47 Osc. trimmer (Band #4)
L
L10 Osc. slug (Band #4)
M
C7 Antenna trimmer (Band #4)
N
C-16 R.F. trimmer (Band #4)
O
IA R.F. Slug (Band #4)
P
L3 Antenna Slug (Band #4)
Q
L9 Osc. shunt coil slug (Band #5)
R
12 Ant. shunt coil slug (Band #5)
S
L6 R.F. shunt coil slug (Band #5)
T
C50 Oscillator trimmer (Band #2)
UJ
L7 Oscillator slug (Band #2)
V
C4 Antenna trimmer (Band #2)
W
C19 R.F. trimmer (Band #2)
X
C52 Oscillator trimmer (Band #3)
Y
C18 R.F. trimmer (Band #3)
Z
C2 Antenna trimmer (Band #3)
TUBE AND TRIMMER LAYOUT
n
J 0
V0
Z0 6U5 Tm
X0
W0
Ye
mA
ANT GNO.
TOP VIEW
0C
PHONO
l
3 AMP. FUSE
SAFETY
INTERLOCK aun PLUG
I DI
BOTTOM VIEW
U
POINTER ADJUSTMENT
Turn the tuning control knob clockwise until tuning gang is wide open. The pointer should now be at 1.75 Mc. (end of dial scale). If it is not, move it to 1.75 Mc. without turning the tuning control knob. Then proceed with alignment.
REPLACING TUNING SLUGS
Set the gang to its wide open position, unsolder and remove the old slug. Set the slug -adjusting screw about half way down. Place the new slug in position. The slugs indicated as I, F, and J (in the trimmer layout diagram) should be 1-5/16" out of their coil forms. The slugs, O, L, and P, should be 1-3/16" out of their coil forms. The slug U should be 11/8" out of its coil form.
CHASSIS REMOVAL FOR MODEL 7C74
dsoatcaafWDhocrfgseneorwuaidiemvttefinhwhnocecehrlstsatsltotahoohbctstewtiehlhtshlethatisahepsest-:tcaioshlottiutotstisRnyote-entohpewna-codubmeerueaoteacrroporotetdauvrirfrsoje.eneutsanmmhitesnmhstTemtohogehpveufbbwerlensleiorydofthtlemuiicooaaenfhnwdirfrrgnaiottn,shsmccostgethhhtcfihhsaelaetkreeshsetcanswshecchiriocelsesioabhcltilsshvastamcsoe.ebseidanssrioboinRp.puswciperaennhetomPmnetvasieuabtsneooilsesltngv.uiliaoteasnnft.ntrbhpdie,uaoneoRelnaglrseielrsbtetdmmci.oobtbatoooltbTtevctvooaihhoeemrnedimbestttrhtehheeaceieedawshndkgadbidotfaesrauoowigscnbrounieneksgefre.-
CHASSIS REPLACEMENT FOR MODEL 7C74
antbrIMiuegnoonucoasrai,emevicnrniredrvgatstelttrtktthohhtpnehwceeooehsbacaibrtstshhudo.isoaanticstnsitosknhimsgesahonohffsdeurahdotlcahdgnrkfeeettisbniotoenisflftietnottr-ihtoptehtutphhetteehecdeiadcrcbohtamoioabnrrsweo.iesnsaitups.ernMedttcTimontwvtihhgvoeieteeuhntsmfhchtrtieroohonenelgwuectnsshwt.aobionsfionosgaRidtsrhedbtehpmouelacfpaooracduprebtwnoaitnnaatiehennirttldegds..
IMPORTANT
ooirneupcteeirTimtavhhtepeieorr.on7ppChOoe7onrp4nleyoprr.haaodtmiOnioooopnt-oeporrth.uanotrinnohotniagcbhoolenenrsoaslinlpceyeeeisodvtihonaeltntreadngldeinpseedowsfsfirolielbrqleur1ee1snd0ucalvymt oalitwng, ei6lbl0utorrcenysitunchllgeet
©John F. Rider
PAGE 18-26 ADMIRAL
ADMIRAL CORPORATION
ALIGNMENT
Check all screws and set screws on tuner to eliminate possibility of backlash. The correct position of the dial drum can be seen in the stringing diagram. With the gang wide open, the stop on the rear o' the dial must rest against the upper stop post. Check slug positioning, with gang wide open. The slugs indicated as I, F, and J should be 1t11" out of their coil
forms. The slugs 0, L, and P should be li's" out of their
coil forms. The slug U should be 1t/8" out of its coil form. If there is any serious deviation or if there has been any
PROCEDURE
tampering, turn the adjusting screws until this distance is corrected.
Connect output meter across voice coil.
Be sure both the set and the signal generator are thoroughly warmed up before starting alignment.
Turn receiver Volume Control full on. Use lowest output setting of signal generator that gives a satisfactory reading on meter.
Proceed as outlined below.
Connect
Signal
Receiver
Step
Signal Generator
Generator
Dial
To
Frequency
Setting
Trimmer and Type of Adjustment
1
Set Band Change Switch to Broadcast Position (Band #1).
2 Thru .1 mfd. to point "AA" I 455 K.C. (bottom view, trimmer lo- Il cation diagram).
1.75 Mc.
A, B, C, D to maximum output
3
Before proceeding t i step 3, check pointer as outlined under paragraph headed "Pointer Adjust-
ment." Leave Band Change Switch in Broadcast Position (Band #1).
4
Antenna terminal at
rear of chassis with
200 mmfd. in series.
1.75 Mc.
1.75 Mc.
E, G, H to maximum output
5
Same as above
1.3 Mc.
1.3 Mc.
F to maximum output
6
Same as above
1.0 Mc. Tune in Signal I, J to maximum output
7
Set Band Change Switch to Band #4.
8
Antenna terminal at
17.5 Mc.
rear of chassis with
400 ohms in series.
17.5 Mc.
K Adjust to bring in signal and check for image with signal generator at 18.41 Mc. See NOTE A below.
9
Same as above
14.5 Mc.
14.5 Mc.
L Adjust to bring in signal and check for image with signal generator at 15.41 Mc. See NOTE A below.
10
Same as above
17.5 Mc.
Tune in Signal
M to maximum output
11
Same as above
17.5 Mc.
Tune in Signal N "Rock" as per NOTE B below
12
Same as above
14.5 Mc.
Tune in Signal
P to maximum output
13
Same as above
14
14.5 Mc.
Tune in Signal
O "Rock" as per NOTE B below
Set Band Change Switch to Band #5.
15
Same as above
19. Mc.
19. Mc.
Q Adjust to bring in signal and check for image with signal generator at 19.91 Mc. See NOTE A below.
16
Same as above
19. Mc.
Tune in Signal R to maximum output
17
Same as above
19. Mc.
Tune in Signal
S "Rock" as per NOTE B below
18
Set Band Change Switch to Band #2.
19
Same as above
4.25 Mc.
4.25 Mc.
T Adjust to bring in signal and check for image with signal generator at 5.16 Mc. S.-e NOTE A below.
20
Same as above
21
Same as above
22
Same as above
3.8 Mc.
4.25 Mc. 4.25 Mc.
3.8 Mc.
Tune in Signal Tune in Signal
U Adjust to bring in signal and check for image with signal generator at 4.71 Mc. See NOTE A below, and "Rock" as per NOTE B below.
V to maximum output W to maximum output
23
Set Band Change Switch to Band #3.
24
Same as above
8.6 Mc.
8.6 Mc.
X Adjust to bring in signal and check for image with signal generator at 9.51 Mc. See NOTE A below.
25
Same as above
7. Mc. Tune in Signal Z to maximum output
26
Same as above
7. Mc. Tune in Signal Y "Rock" as per NOTE B below
NOTE A: Image check. Trimmers referred to this note can have two peaks. Check to see if proper peak was obtained by leaving receiver dial at its setting and retuning signal generator
to frequency indicated in chart above. If image is not heard
at or near indicated point, realign to other peak and recheck image.
NOTE B: Trimmers referred to this note should first be adjusted to maximum. Then try to increase output by detuning trimmer slightly and retuning signal generator dial until maximum output meter reading is secured.
©John F. Rider
ADMIRAL PAGE 18-27
ADMIRAL CORPORATION MODELS 8C11, 8C12, 8C13,
8Cili., 8C15, 8C16, 8C17,
CHASSIS 8C1
ALIGNMENT PROCEDURE
FM ALIGNMENT EQUIPMENT
The model 8C1 chassis should be aligned only with an AM signal generator and a vacuum tube voltmeter. Any standard brand vacuum tube voltmeter with a DC scale of not over 5 volts is suitable. A 3-volt zero center scale is desirable. A signal generator with a frequency range up to 110
MC. is desirable. It is possible however, to align the receiver with a signal generator going to 20 or 30 megacycles, by using the harmonics of these lower frequencies. To do this merely set the signal generator dial as follows and align exactly as explained in the alignment instructions. Where alignment chart specifies 109 MC., set signal generator to highest available frequency of
the following:
109. MC 54.50 MC 36.33 MC
27.25 MC 21.80 MC 18.17 MC
Where alignment chart specifies 102 MC., set signal generator to highest available frequency of the following:
102. MC
25.50 MC
51. MC
20.40 MC
34. MC
17. MC
Signal generators which do not tune to 110 MC or whose harmonics are not strong enough, cannot be used for FM alignment.
POINTER SETTING
With the gang closed, the pointer should be at the position as shown in the stringing diagram (Fig. 4), that is, the bottom edge of the pointer should line up with the top of the "MC" lettering on the dial scale. If the pointer is in a different position, move it by hand while keeping the gang
closed.
TRIMMER IDENTIFICATION CHART
Trimmer Symbol
Function
A ... T3 Ratio Detector transformer B T2 ... 2nd IF transformer (FM)
C T2 2nd IF transformer (FM)
D T1 1st IF transformer (FM)
E T1 1st IF transformer (FM) F T3 .. . Ratio Detector transformer G C38... FM oscillator trimmer
H C5b ... FM RF trimmer
I. .T5 2nd IF transformer (AM)
J T5 ... 2nd IF transformer (AM) K T4 ... 1st IF transformer (AM) L T4.... 1st IF transformer (AM)
M C5d AM oscillator trimmer
N C5a AM antenna trimmer
Fig. 4. Stringing Diagram
IMPORTANT PRELIMINARY ALIGNMENT STEPS
Ig(nsetneFepMra4taoilrnigvntehmreyenFctM,ari-etIf.uFisl.lyeas;lsigeitnntmimaelanytthnainetcsetervsusecirttyaiotenstse)hp.avbieDnguforiltnloogweetshdtii.smaEptoseprteitochinealldoyifalitmhreepaoadrlitinagngntsmitesonptaicitkteininsgthntehocefescaaelndytievtriosiooftnu.tnhee
I.F. the
curve signal
O
Check the set screws that shaft to see that they are not slipped on the shaft.
hold the tuning drum to tight and that the drum The correct position of
the has the
drum can be seen in the stringing diagram.
o With the gang closed, the pointer should be at the position as shown in the stringing diagram, that is, the
l'
bottom edge of the pointer should line up with the top of the "MC" lettering on ' he dial scale. If the pointer is in a different position, move it by hand while keeping the gang closed. Be sure both the set and the signal generator aie thoroughly warmed up before starting alignment.
©John F. Rider
www.americanradiohistory.com
PAGE 18-28 ADMIRAL
MODELS 8C11, 8C12, 8C13, 8C14$ ADMIRAL CORPORATION 8c15, 8016, 8017, CHASSIS 8C1
FM I.F. AND RATIO DETECTOR ALIGNMENT
Keep output indicator leads well separated from signal generator leads and chassis wiring.
output so VTVM reading is approximately +1.5 volts DC with exception of Step #5.
Band switch in FM position (fully to the left).
Speaker must be connected during alignment.
While peaking IF's, keep reducing signal generator
FM antenna disconnected during alignment.
I.F. SLUG INFORMATION
To avoid splitting the slotted head of the powdered iron core tuning slug in the I.F. transformers, use a screw -driver with a blade 1/(3" wide for I.F. alignment.
Under normal operating conditions, mis -alignment of slug-tuned circuits with age is slight. Therefore, re alignment of the I.F. transformers should be accomplished by only a slight adjustment of the slugs.
Before proceeding, be sure to follow all steps listed above, under "Important Preliminary Alignment Steps."
Connect
Generator Receiver
Signal Generator Frequency Dial Setting
Thru .001 cond.
to pin # 1 of
6BA6 RF amplifier
10.7 MC unmodu-
lated.
Tuning gang wide open
Output Indicator and Special Connections Connect VTVM (DC probe) from point "W"
to ground. (See Fig. 11.)
Adjust as Follows (very carefully) "A" (ratio detector primary) for maximum reading on VTVM.
2
"
"
"
"
"
Iron cores "B" and "C" (2nd IF trans.) for maximum reading on VTVM.
Iron cores "D" and "E" for
maximum on VTVM. Re-
If
adjust A, B, C, D, E, for
maximum. (Keep reducing
generator output to keep
VTVM at 1.5 volts).
a. Reduce output of signal generator until VTVM reads exactly +1.5 volts DC.
b. Tune generator frequency above 10.7 MC until VTVM reads exactly +1.0 volt. Note exact generator frequency. Extreme care in reading this is essential.
c. Tune generator frequency below 10.7 MC until VTVM reads exactly +1.0 volt. Note exact generator frequency. Extreme care in reading this is essential.
4
"
d. Add generator frequency in step c to generator frequency in step d and divide by 2. The result is the center frequency of the IF curve to be used in step 5. See example on next page.
e. Tune generator frequency above and below 10.7 MC and note voltage reading on
VTVM at different frequency points until you have a good impression of the shape
of the selectivity curve. If you have two peaks as in Figures 9 or 10, note readings
(voltage) of both peaks. If one peak is over 20% higher than the other one, it will
Tuningtor be necessary to realign IF's. A selectivity curve that would require realignment is
illustrated by Figure 10.
Center of IF selectivity curve per
Iron core "F" (ratio detecsecondary) for zero
5
step 4d
above. See
gang
Connect VTVM (DC probe) from point "X" voltage reading on VTVM. (The correct zero point is
"EXAM- wide open
to ground. (See Fig. 11.)
located between a potsitive
PLE" on
and a negative maximum.)
next page.
If any **Do not
adjustments were very far off, it
feed I.F. signal into converter grid
is as
desirable to repeat steps 3, 4 this will cause mis -alignment.
and
5.
FM RF ALIGNMENT PROCEDURE
Connect Signal
Generator
Generator Frequency
Receiver Dial
Setting
Output Indicator and Connections
Adjust as Follows
6
FM ant. terminal.
109 MCt Tuning (unmodu- gang lated). wide open
Connect VTVM (DC probe) from point "W" to ground.
*G for maximum VTVM reading.
102 MCt
,,Tune in generator signal
7
"
(unmodu- 102 MC
"
on receiver. Adjust H for
lated).
max. VTVM reading
* It is advisable to adjust generator output so VTVM readings do not exceed approximately + 1.5 V. DC after peaking. t If your signal generator does not reach this frequency; use harmonics as described in "FM Alignment"
©John F. Rider
ADMIRAL PAGE 18-29
ADMIRAL CORPORATIONMODELS 8C11, 8C12, 8C13, 8C1lt
8C15, 8C16, 8C17, CHASSIS 8C1
SETTING SIGNAL GENERATOR TO
CENTER OF I.F. SELECTIVITY CURVE
tCgreeAmnUeerTaItcOoarNre:tomthDuesuteacbtceoureatxcheyercridesiqefdfuiicruienldtymbyoafktihnsigsettoienpagecrhaatisoesnti,tginnegaxl.Otherwise, improper alignment of the ratio detector and consequent audio distortion will result.
EXAMPLE: (See Figures 5 and 6)
Voltage reading in Step 4a is + 1.5 volts.
- Generator frequency on low side of 10.7 reading of + 1 volt DC 10.640 MC.
MC
for
a
Generator frequency on high side of 10.7
ing of + 1 volt DC = 10.800 MC.
MC
for
a
read-
Center frequency is obtained by adding 10.640 and 10.800, then dividing by 2. For these readings it will be 10.72 MC.
Set generator frequency to 10.72 MC as this is center of selectivity curve as shown in Figure 6.
Note: Numerical vernier dial readings may be used instead of MC.
j
K . K.C.
-in
10.7 M..G0.
T KC. KC.
0 0-
10.72 M.C.
10.64 M.C. 10.8 M.C.
Fig. 5
10.64 M.C. 10.8 M.C.
Fig. 6
TYPICAL SELECTIVITY CURVES
CORRECT
Fig. 7.
CORRECT
Fig. 8.
CORRECT
Fig. 9.
INCORRECT Fig. 10.
6V6
CD
PCl iJ6
1
Fig. 11.
6587-
Y
Ist FM. IF. M AM
FMRF. D
le Pinlebt
Pin
lit IF
I ID
AM.
ED GND.
2nd FM IF.
B
Pin!
2nd IF O FM.
Bottom Trimmer Location
6507 J
2 nd.
AM -IF
X A
Ratio I D.t.
I
Pinl-W
lot AM. -IF. lot FMrIF.
FM ANT GND. AM ANT
Fig. 12. Top Trimmer Location
AM ALIGNMENT PROCEDURE
Use regular output meter connected across speaker
voice coil.
Turn receiver Volume Control full on; Tone Control full treble.
Band Switch in center position. Use lowest output setting of signal generator that gives a satisfactory reading on meter.
Connect Signal Generator
Dummy Antenna Between Radio and Signal Generator
Signal Generator Frequency
Receiver Dial
Setting
Adj. Trimmers in Following Order to Max.
Set Band Switch to Broadcast Position (center) and be sure to follow instructions under heading "Important Preliminary Alignment Steps." Loop antenna can be disconnected from chassis in Steps 1 and 2.
6SB7-Y
1
(Pin #8)
.1 MFD
455 KC
Tuning gang wide open
I, J, K, L
2
To loop ant. terminal
Direct connection
1620 KC
Tuning gang wide open
M
Set Receiver Chassis on table next to back of cabinet. Connect Loop Antenna to Receiver.
Place generator lead close to loop of set to obtain 3 adequate signal.
No actual connection (signal by radiation).
1400 KC
Tune in signal
N
©John F. Rider
PAGE 18-30 ADMITTAL
MODELS 8C11, 8C12, 8C13, 8C14, ADMIRAL CORPORATION
8C15, 8C16, 8C17, CHASSIS 8C1
RESISTORS
Symbol
Description
Part No.
R1
390 Ohms, 'a Watt
60B 2-391
R2
470,000 Ohms, '4 Watt
60B 2-474
R3
22,000 Ohms, 1 Watt
60B 14-223
R4
1 Megohm, '4 Watt
60B 3-105
R5
47,000 Ohms, 'a Watt
60B 2-473
R6
47,000 Ohms, '4 Watt
608 2-473
R7
15,000 Ohms, 2 Watt
60B 20-153
R8
470 Ohms, 14 Watt
608 2-471
R9
470,000 Ohms, 14 Watt
60B 2-474
R10 27,000 Ohms, 1 Watt
60B 14-273
R11 470 Ohm, '4 Watt
606 2-471
ß`R12 47,000 Ohms, '4 Watt
R13 220,000 Ohms, Is Watt
60B 2-224
R14 220,000 Ohms, 'a Watt
60B 2-224
R15 15,000 Ohms, 2 Watt
60B 20-153
R16 27,000 Ohms, '4 Watt
60B 2-273
R17 390 Ohms, '4 Watt
60B 2-391
R18 27,000 Ohms, 1 Watt
60B 14.273
R19 6,800 Ohms, )4 Watt, 5% R20 6,800 Ohms, '4 Watt, 5'1
608 1-682 608 1-682
R21 120,000 Ohms, 'y Watt
60B 2-124
R22 100,000 Ohms, '4 Watt
608 2-104
R23 47,000 Ohms, '4 Watt
608 2-473
R24
2
Megohms Tone Control (Includes ON-OFF Switch SW2)75B
1-24
R25 1 Megohm Volume Control (Tapped at 500,000 Ohms) 758 2-10
R26 10 Megohms, '4 Watt
60B 3-106
R27 22,000 Ohms, 'y Watt
608 2-223
R28 470,000 Ohms, '4 Watt
608 2-474
R29 470,000 Ohms, '4 Watt
60B 2-474
R30 390 Ohms, 1 Watt
60B 14-391
'Part of encased Diode Filter Unit 63A3-1. This unit
consists of R12, C17, C18 (see schematic). If a
section of the unit becomes defective, replace with
component of proper value.
CONDENSERS
Symbol
Description
Part No.
Cl
C2 C3 C4 C5a C5b C5c C5d C6 C7
C8 C9 C10
C11
C12 C13 C14 C15 C16
'C17 "C18
C19 C20 C21
C22 C23
324
105 mmfd., 5' , .00075 Temp.
Coeff. Ceramic
65B 6-9
.01 mfd., 400 Volts, Paper
64B 1-25
.0015 mfd., "Hi -K" Ceramic
65A 14-1
140 mmfd., 3',, Silver Mica... 658 1-26
486 mmfd. (max.) AM RF 15 mmfd. (max.), FM RF 15 mmfd. (max.), FM Osc. 143 mmfd. (max.), AM Osc. )
22 mmfd., 5'., Ceramic
Gang Cond. 68B 16
658 6-47
7 mmfd, T1 mmfd., -.00047
Temp. Coeff., Ceramic
65B 6-45
01 mfd., 400 Volts, Paper
64B 1-25
35 mmfd., 5';, Ceramic
65B 6-46
105 mmfd., 5';, -.00075 Temp.
Coeff. Ceramic
65B 6-9
7 mmfd., -1 mmfd., -.00047
Temp. Coeff., Ceramic
658 6-45
.0015 mfd., "Hi -K" Ceramic .01 mfd., 400 Volts, Paper .01 mfd., 400 Volts, Paper .005 mfd. min., Ceramic (Disc) .01 mfd., 400 Volts, Paper 100 mmfd., Mica
65A 14-1 648 1.25 64B 1-25 65A 10-1 64B 1-25
100 mmfd., Mica
.01 mfd., 400 Volts, Paper
64B 1-25
.005 mfd. min., Ceramic (Disc) 65A 10.1
105 mmfd., 5'., -.00075 Temp
Coeff., Ceramic
65B 6-9
4 ntfd., 150 Volts, Electrolytic 67A 4-2
105 mmfd., 5' : , -.00075 Temp
Coeff., Ceramic
658 6-9
.002 mfd-, 600 Volts, Paper
64B 1-14
©John F. Rider
Symbol
Description
Part No.
C25a C256
30 30
mfd., mfd.,
350 350
Volts Volts
1}Elect....
67C 6-25
C25c 20 mfd., 25 Volts
C26 .01 mfd., 400 Volts, Paper
64B 1-25
C27 .2 mfd., 200 Volts, Paper
648 1.29
C28 .001 mfd., 600 Volts, Paper
648 1-15
C29 .005 mfd., 600 Volts, Paper
64B 1-12
C30 500 mmfd., 10%, Mica
658 5-27
C31 .005 mfd., 600 Volts, Paper
64B 1-12
C32 .01 mfd., 400 Volts, Paper
648 1-25
C33 .1 mfd., 400 Volts, Paper
64B 1-20
C34 .01 mfd., 400 Volts, Paper
64B 1.25
C35 200 mmfd., 20r, Ceramic.... 658 7-21
C36 .01 mfd., 400 Volts, Paper
64B 1-25
C37 .005 mfd., 600 Volts, Paper
64B 1-12
C38 2,2 to 6 mmfd., Trimmer,
Silver Ceramic
66A 24-2
'Part of
consists
encased Diode of R12, C17,
Filter C18
Unit (see
63A3-1. This unit schematic). If a
section of the unit becomes defective, replace with
component of proper value.
COILS, TRANSFORMERS, ETC.
Symbol
Description
Part No.
LI... Antenna, FM (90" of =22 wire)
1.2... Antenna, Loop (AM) L3... Choke, RF
95A 24-2 AB103-33
L4... Coil, Loop Loading (AM)
69A 56
L5... Coil, RF (FM) L6... Coil, Oscillator (FM)
69A 55 69A 54
L7... Coil, Oscillator (AM)
69A 20-1
1.8... Choke, Filter
74A 10
L9... Choke, Filament
Approx. 10 turns (18") of solid =22 hook-up wire wound on C26 Solder one end to inside foil lead of C26
T1... Transformer, 1st IF (FM)
728 37
T2... Transformer, 2nd IF (FM)
72B 38
T3... Transformer, ratio Detector... 72B 39
14... Transformer, 151 IF (AM)
72B 54
15... Transformer, 2nd IF (AM)... 72B 49
T6... Transformer, Power
80B 5
T7... Transformer, Output
79A 9
M7.. Speaker 10" P.M. Dynamic
78B 28
SW1. Switch, Band (FM, AM, Phono)778 18
SW2. Switch, Power
Part of R24
SW3. Switch, Phono Motor (see Record
Changer Manual)
Diode Filter (consists of R12,
C17 and C18)
63A 3-1
DIAL PARTS
Description
Part No.
Dial Bulb, =47
81A 1-8
Dial Bulb Socket (with leads)
82A 8.3
Dial Cord (18")
50A 1-3
Dial Escutcheon and window (Radio). 23D 29-2
Dial Escutcheon, Television (8C11, 8C12, 8C13 only)
Dial Pointer, Plastic
Dial Scale Assembly
Drum and Hub Assembly
RubberScCalhean-n-e!29('I2n"n)er edge of Dial
Set Screw, Dial Drum, 8.32x04"
Spring, Dial Cord Sleeve, Dial Tuning (brass)
23D30-1 A1685 A1676 A-1318
12A 20-3
lA 5-59-0
198 1-3 27A 45
PHONOGRAPH PARTS
Note: See RC181 Record Changer
Symbol
Description
Part No.
... M1
Cobre and Socket, Phono Motor ..89A 6-6
Phono Motor Extension Cable
(used on 8C11, 8C12, 8C13). 89A 6-32
E_1-1
LI I I
I I
BUILT-IN FM ANT. DISCONNECT WHEN
USING EXT. DIPOLE.
1
CI
I
I
I
L
I
leHi IFM1
.5L3
RI
R2
C2
FM RF
6BA6
C3
I( C5o
L2
/
L5
I 3
2 4 R3
/
//
C6 SWI IS IN FM POSITION
C7
° SW1 °
CB
REAR BACK SECTION
R5 R4
o
0
OSWI 0
FRONT
ADMIRAL CORPORATION
CONVERTER
6SB7-Y
91
3
8
6 R6
L7
CIO
1
ß1:Cd5ìT---
P /
T ,- CS C3 CII
L6 C Á..
-g/
C12
R7
l 7717
/
_OSWIO
°
- `.
REAR
FRONT SECTION
O
p
p )
O
oSWIo
FRONT
ADMIRAL PAGE 18-31,32
MODELS 8C11, 8C12, 8C13, 8C14, 8C15, 8016, 8017, CHASSIS 8C1
1st LF.
6BA6
2 T43
rÏïI
1 I
g11I
11 4
CIS
RIOi
RII
C
R8 R9 C14
F M-2nd.1.F.
I2r-T-2--¡36BA6
1 IILtI9I_éP_IL__TJII
5 2
2_
I
4
1
C19
7
II
' II T5 I
- C20 I+I
2
T1113 p;f
L
-J :II
I
4
C16
1
C17
RATIO DETECTOR
6AL5
T3
1.21
A
w
R19 1 C22 4-
C2 3
7
R20
R17
RIB
C24 x
R15
RI6
L
DIODE FILTER
-JvR12w
-1H-11-
C17 C18I
FM. RF.
ENAMELED WIRE
COIL
TINNED ,,WIRE
3
L5
NOTE: If a section of the Diode Filter Unit becomes defective, replace with component of proper value (see parts list). When cutting out a bad section remember that the single ground lead is common to both condensers.
CHASSIS GROUND
MISCELLANEOUS
Description
Port No.
'Cabinet
Walnut (8C11) Mahogany (8C12) Blond (8C13)
Walnut (8C14) Mahogany (8C15) Mahogany (8C17) Carton complete with fifers
35E 80-1 35E 80-2 35E 80-3 35E 76-1 35E 76-2 35E 82-1
for 8C14, 8C15
448 108
for 8C17
44B 109
Carton complete with fibers, less crate
(for 8C11, 8C12, 8C131
4413 115
Crate, less carton (for 8C11, 8C12,
8C13) Door, Radio or Phono Tilt -Out
44B 117
pair for Walnut (8C' 1)
98A 41-1
pair for Mahogany (8C12)
98A 41-2
pair for Blond (8C13)
98A 41-3
pair for Walnut (8C14)
98A 41-4
pair for Mahogany (8C15)
98A 41-5
pair for Mahogany (8C17)
98A 41-6
'Door, Record Compartment Complete
for Walnut (8C14) for Mahogany (8C15) )oor Arm (near center cf cabinet;
98A 41-7 98A 41-8
see Ref. =5 in. Fig. 1)
A1440
©John F. Rider
R13
R14
-T6
RECTIFIER
5Y3 -G
SW2
L8
C25ar00ÖÖ8` C2 5b
T _L
L9
o oo
O 0 o
r
C26 =47
C29
R2i C27
C28
1C30
AM
2nd DET.
M6
1st A.F.
1-* J_
6SQ7
R22
M5
C31 2
R25
R27
1933
R28
OUTPUT
C34 6V6 -GT
3 C37
6V6 6AL5 68A6 650- 7
© e
6BA6 68A6 6S87 -Y
A BC
ÌLt""`f 11M4
-MRn23M-
R24
R26 3 C35
R29 C36
8 C2 5c
R30
SW3
--.VM1/0-41 32
,1
MI M2
M3
MT
E
It__ ___\1J
Door Arm (nearest side of cabinet;
see Ref. =5 in Fig. 1) Door Bracket (near center of cabinet;
A1441
see Ref. =7 in Fig 1) Door Bracket (nearest side of cabinet;
A1438
see Ref. =7 in Fig 1) Door Catch and Strike Pate for
A1439
Record Compartment Door Door Handle (Tilt -Out Doors)
98A 41-9
for Walnut (8C11),
Mahogany for Blond
(8C12 (8C13)
and
8C17)
for Walnut (8C14) & Mahogany
33A 33-1 33A 33-2
(8C15) Door Hinge,
Record
98A Storage Compartment
41-10
for Walnut (8C14) & Mahogany
(8C15)
98A
Door for
KWnoabln, uRt ec(8oCrd14S) to&ragMeahCoogmanpayrtment
41-11
(8C15) Grille, Metal
98A 41-12
for Walnut (8C11), Mahogany (8C12)
and Blond (8C13) Grille Cloth
36A 7-3
for Walnut (8C11) & Mahogany
(8C12) for Blond (8C13) for Walnut (8C14) & Mahogany
(8C15) for Mahogany (8C17) Grommet, Rubber
98A 41-13 98A 41-14
98A 41-15 98A 41-16
for mounting Chassis
12A 1-11
VOLTAGE CHART
Line Voltage 117. Voltages measured with a vacuum tube voltmeter. Second voltage readings and A.C. voltages measured with a 1000 ohm -per volt meter. Voltages read between socket terminals and ground, unless otherwise indicated. Band switch in FM position. Dial turned to low frequency end.
Volume Control-minimum.
6V6
O
240 230
85 6A.C.
13.25
o O
254DC 252DC
SAC.
©n 4
255
A.C. ©lopr 252DC 255A£.
5Y3
SCI -134
r
6SB7-Y
106 -6.2
*233
O 6SQ7
6A.C.
0 85
O
O©© 0
6BA6
240.120
{O 1tf 6A.C. 107
o
o
0 -.3-FM
-.77-A M O
-.65
. 0 6A.C.
6A.C.
.o. 84 -.65
50
-.85
-.75
6BA6 O
231
O
O .©b 6A.C.
-.84 o°r, 94
6BA6
O O
BOTTOM OF CHASSIS
6A.0
6AL5
'r3
O -3
*If measured with band switch in phono position, reading will be zero.
RECORD CHANGER: Admiral Model RC-181, RCD.CH. 18-1
www.americanradiohistory.com
ADMIRAL PAGE 18-33 34 MODELS 9B1/4 9B15, 9331 , CHASSIS 9B1
BUILT-IN FM. DIPOLE
L3
6BA6 EXT. DIPOLE MAY IST R.F.
BE USED INS1EA0
RI
L6 L
SWI
36
C5
2N0 RF
6BA6
W 3
ADMIRAL CORPORATION
CONVERTER
6SB7-Y
L8R
SWI
- 31
3
29
CII 8
30
-
SWI
4 Cl2 26
25
- 6
5
R9 CI3
27
L9
R7
R8
-
T-1
Y
- C14
LII
SWI 24
TI 2-
SWI
lV22
I+I
20
2
rT--I
I
23
C16
C28
RIO
IST. I.F.
6BA6
-13
2r T2
I
AM. DE1.
F.M. 2ND. I.F.
3 6BA6
2 T3
RATIO DET.
6AL5
t
J CI5
C26
T
COIL CONNECTIONS
L6
L8
L9
COLOR COOED
_ LUG
J
G.d
RECTIFIER
TE
5U4 -G
dDLO12
c28a c28ol
C29
O FM.
7
60
L O AM O PHONO
5
C32
T
F-
BLUE
M6
SWITCH SHOWN IN FM. POSITION
L13 C3I M5
If ril i/rill 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 O
19
l'
o
O z
1j
L-
á
a
1
IO 9 8 7 6 5 4
1C30 3
68A6 6BA6 6S87-Y68A6
IST 2ND CON IST
R.F
R.F
I.F
6BA6 GALS 6507 6V6
2ND DET. 1ST OUTPUT
F
AUDIO
--A --B -,C
M41L-_
SW3
-,2RP-rg
M3
A.M. DE T.
F.M.2ND.LF
--- r T2
6AU6
3
2 T3
Early models used a 6AU6 tube for the AM detector FM 2nd I.F. in place of the 6BA6 tube shown in the schematic. Connections of the 6AU6 tube are shown above.
VOLTAGE CHART
Line Voltage 117.
EARLY MODELS
CAUTION: The two tubes are not
PART NO
65A10-1
005
PART NO
60821-662
68001.
interchangeable.
CER DISC
2 WATTS
B+
FM SERVICE
Much of FM service is similar to the usual capacities at high frequency and hence may ap-
service- necessary for AM receivers such as volt- preciably alter the electrical characteristics of a
age analysis, parts replacement, etc. The chief circuit. For this reason, ground connections
differences arise because of the considerably high- should always be maintained as originally made in
er frequencies used in FM operation, and because the set. Also note that in certain circuits, the type
of the different type of second detector needed by-pass condenser used is critical at the high FM
in FM.
frequencies. When replacing condensers it is im-
The higher frequencies involved means that more care must be exercised in location and length of leads. Leads tend to act as small inductances or
portant that they be replaced with condensers of identical capacity values, tolerances, temperature coefficients and construction. For example: C3 is a 22 mmfd ± 2' ; , zero temperature coefficient,
ceramic capacitor. If defective it should be re-
placed with a 22 mmfd + 2' ; , zero temperature
coefficient, ceramic capacitor.
Voltages measured with a vacuum tube voltmeter. Many readings will be lower if measured with a 1000 ohm-per-volt meter. Voltages read between socket terminals and ground, unless otherwise indicated. Band switch in FM position. Dial turned to low frequency end. Volume Control-minimum.
©John F. Rider
SWI
-2-
'C33
I ST. A.F.
6SQ7
R24
C34
VOLUME
CONTROL
OUTPUT
6V6 -GT
T7
C38
R23
R26 TONE CONTROL
C36
C35
C37 R28
BOTTOM VIEW
ri
77
o
5U4
60
260
A.C.
6.3A C. O
0
SAC +.3
-.6 0
228
*100
0
2nd I.F
6BA6
*225
6A
©' -_7
EARLY MODELS USED 6AU6-PLATE (5)-140V.
o 0
SCREEN (6)-I40v.
06.3 tÌ o 6AL5
*98
*243
68 A6
15t I F
6.3 O
A.C.
6S87 -Y
-.8 *1O0
O
*243
A.C.
.9
*215
b.3 AC.
115*
o
o
6BA6
2nd RF
*If voltages are measured with hand switch in phono
position, reading will he zero or practically zero.
'SI RF
6BA6
6.3 AC
RECORD CHANGERS: Admiral Model RC-170A, RCD.CH.
Admiral Model RC -181, RCD.CH.
16-1 18-1
ADMIRAL CORPORATION
ADMIRAL PAGE 18-35
MODELS 9B14, 9B15, 9B16, CHASSIS 9B1
9B1 CIRCUIT DESCRIPTION
Two stages tubes are used is obtained by the input is to
of RF amplification using 6BA6 for FM. For AM sufficient gajn using one RF stage only and so the 2nd 6BA6 RF tube.
ipptsuulabdrtepee.opseaennTsdd.heensIctgnroreinetdhnseaigvnAnodaMltlacsgasteterhsetotnidangergteht,ohrfeeitmnthiosefvuuebnsdeacdntifdorfoonsmrwaAisttVhcahiCsn,
priTmhaerybanwdhesnwiintchthsehoArMt cpirocsuitiitosnthaend1sst hIo.Fr.t cuits the 1st I.F. AM 'primary when in the
FM cirFM
ActuoMbneveswencatiosonnudasleddemtieancntpnolerarc.e(doi(ofIdnteh)eisaarn6lydBAmA6oVdtCueblsetu.)abe6AinU6a
position. A 6BA6 tube is used in a second stage of I.F.
amplification for FM operation. Self-bias is developed in the grid resistor (R13 and R20 in series) of this stage. Since this DC bias voltage
Ratio Detector and Grounded -Grid RF Amplifier
The ratio detector 1st RF amplifier are
circuit and grounded -grid the same as used in the
9A1 chassis. Reference can be service manual for description
made to of these
the 9A1 circuits.
ALIGNMENT PROCEDURE
FM ALIGNMENT
The model 9BI chassis should be aligned only with an AM signal generator and a vacuum tube voltmeter. Any standard brand vacuum tube voltmeter with a DC scale of not over 5 volts is suitable. A 3 -volt zero center scale is desirable. A signal generator with a frequency range up to 110
MC. is desirable. It is possible however, to align the receiver with a signal generator going to 20 or 30 megacycles, by using the harmonics of these lower frequencies. To do this merely set the signal generator dial as follows and align exactly as explained in the alignment instructions.
Where alignment chart specifies 109 MC., set signal generator to highest available frequency of
the following:
109. MC 54.50 MC 36.33 MC
27.25 MC 21.80 MC 18.17 MC
Where alignment chart specifies 104 MC., set signal generator to highest available frequency of the following:
104. MC
26.00 MC
52.00 MC
20.80 MC
34.67 MC
17.33 MC
Signal generators which do not tune to 110 MC
or whose harmonics are not strong enough, can-
not be used for FM alignment.
In FM alignment, it is essential that every step be followed. Especially important is picking the center of the I.F. curve (step 4 in the FM-I.F. alignment instructions). During this portion of the alignment it is necessary to tune the signal generator very carefully; it may necessitate having to estimate the dial readings to a tenth of a
division.
POINTER SETTING
With the gang open, the pointer should be at the position as shown in the stringing diagram (Fig. 4), that is, the tip of the pointer should point to the space between the "AM KC" lettering on the dial scale. If the pointer is in a different position, move it by hand while keeping the gang open.
TRIMMER IDENTIFICATION CHART
Trimmer Symbol
Function
A T3 .... Discriminator transformer
B . . T2 ....2nd IF transformer (FM)
C T2 .. 2nd IF transformer (FM)
D T1 ....1st IF transformer (FM) E Ti ....1st IF transformer (FM) F T3 .... Discriminator transformer
G L9 FM oscillator coil
H L8
FM 2nd RF coil
I
L6
FM 1st RF coil
J T5 .... 2nd IF transformer (AM)
K T5 ....2nd IF transformer (AM) L T4 ....1st IF transformer (AM) M T4 ....1st IF transformer (AM)
N Cob AM oscillator trimmer
O .. L7 AM RF coil
P C4a AM antenna trimmer
REPLACING TUNING SLUGS
With the gang wide open, all three FM tuning slugs should be % inch out of their coil forms. The AM -RF tuning slug (adjustment "0" in the trimmer location diagram) should be 1 inch out of its coil form.
If it becomes necessary to change a tuning slug, proceed as follows: Set the gang to its wide open position. Unsolder and remove the old slug. Set the slug adjusting screw about half way down. Place the new slug in its correct position. Solder in place making sure that it does not slip during the operation and that the slug wire is straight.
Realignment is necessary after slug replace-
ment.
981.115
FM AM KC
CORRECT POINTER POSITION
GANG IN OPEN POSITION
Fig. 4. Stringing Diagram
©John F. Rider
www.americanradiohistory.com
MODELS 913114, 9B15, 9B16, CHASSIS 9B1
ADMIRAL CORPORATION
IMPORTANT PRELIMINARY ALIGNMENT STEPS
With the gang open, the pointer should be at the position as shown in the stringing diagram, that is, the
not slipped on the shaft. The correct position of the drum can be seen in the stringing diagram.
Checkserious tip of the pointer should point to the apace between the
"AM KC" lettering on the dial scale. If the pointer is in a different position, move it by hand while keeping the gang open.
the set screws that hold the tuning drum to the
With the gang wide open, all FM tuning slugs should
be % inch out of slug (adjustment
their coil forms. The AM -RF tuning "O" in the trimmer location diagram)
should be 1 inch out of its coil form. If there is any
deviation, or if there has been any tampering,
turn the adjusting screw until this distance is corrected.
shaft to see that they are tight and that the drum has
(See paragraph on tuning slug replacement.)
FM I.F. AND RATIO DETECTOR ALIGNMENT
Solder output indicator leads in place and keep them well separated from signal generator leads and chassis wiring.
Band switch in FM position (red signal at MC on dial).
While peaking IF's, keep reducing signal generator output so VTVM reading is approximately +1.5 volts DC with exception of Step #5. Speaker must be connected during alignment.
FM antenna disconnected during alignment.
I.F. SLUG INFORMATION
To avoid splitting the slotted head of the powdered iron core tuning slug in the I.F. transformers, use a screw-driver with a blade 37{3" wide for I.F. alignment.
Under normal operating conditions, mis -alignment of slug-tuned circuits with age is slight. Therefore, re -
alignment of the I.F. transformers should be accomplished by only a slight adjustment of the slugs.
Before proceeding, be sure to follow all steps listed above, under "Important Preliminary Alignment Steps." Steps 1 and 2 may be omitted if set is not badly out of alignment so signal comes through in Step 3.
2
Connect Signal Generator
Thru .01 cond. to 2nd IF grid
gangprimary) (Pin #1of 2nd IF) Thru .01 cond.
PP" to 1st IF grid (Pin #1 of 6BA6 1st IF)
Generator Receiver Frequency Dial Setting 10.7 MC Tuning unmodu-
lated. wide open
pp
PP
Output Indicator and Special Connections Connect 3300 ohm carbon, resistors across secondaries of both FM-IF transformers. Connect VTVM (DC probe) from point "W"
to ground. (See Fig. 11.)
Adjust as Follows (very carefully) "A" (ratio detector
for maximum reading on VTVM.
Iron cores "B" and "C" (2nd IF trans.) for maxi mum reading on VTVM.
PP
»
Iron cores "D" and "E" for
To pin # 1
of 6BA6
.t
2nd R.F.
amplifier**
maximum on VTVM. Re -
P/
If not enough IF signal comes thru during this step, ground pin #5 on the 6SB7-Y. Leave generator set at 10.7 MC until step 4c.
adjust A, B, C, D, E, for
maximum. (Keep reducing
generator
VTVM
output to keep at 1.5 volts).
a. Remove 3300 ohm resistors from IF transformers.
b. Reduce outPput of sig87n1al generator until VTVM reads exactly +1.5 volts DC. c. Tune generator frequency above 10.7 MC 'until VTVM reads exactly +1.0 volt.
Note exact generator frequency. Extreme care in reading this is essential.
d. Tune generator frequency below 10.7 MC until VTVM reads exactly +1.0 volt.
Note exact generator frequency. Extreme care in reading this is essential.
.
e. Add generator frequency in step c to generator frequency in step d and divide by 2.
PP
The result is the center frequency of the IF curve to be used in step 5. See example
on next page.
f. Tune generator frequency above and below 10.7 MC and note voltage reading on VTVM at different frequency points until you have a good impression of the shape of the selectivity curve. If you have two peaks as in Figures 9 or 10, note readings (voltage) of both peaks. If one peak is over 20% higher than the other one, it will be necessary to realign IF's. A selectivity curve that would require realignment is
illustrated by Figure 10.
Center of IF
selectivity
Iron core "F" (ratio detec-
curve per Set pointer
tor secondary) for zero
5
step 4e to upper Connect VTVM (DC probe) from point "X" voltage reading on VTVM.
above. See limit on
(The correct zero point is
"EXAM- dial.
to ground. (See Fig. 11.)
located between a positive
PLE" on
and a negative maximum.)
next page.
If any adjustments were very far off, it is desirable to repeat steps 3, 4 and 5.
**Do not feed I.F. signal into converter grid as this will cause mis-alignment.
©John F. Rider
www.americanradiohistory.com
ADMIRAL CORPORATION
ADMIRAL PAGE 18-37
MODFI S 9B14, 9B15,
9B16, CHASSIS 9B1 .
SETTING SIGNAL GENERATOR TO
CENTER OF I.F. SELECTIVITY CURVE
(CgeAnUeTraItOoNr :to treme care
Due to the difficulty the accuracy required must be exercised in
of setting a signal by this operation, exmaking each setting.
Otherwise, improper alignment of the ratio detector and
consequent audio distortion will result.
EXAMPLE: (See Figures 5 and 6)
Voltage reading in Step 4b is -I- 1.5 volts.
Generator reading
frequency
of + 1 volt
on DC
l=ow
side 10.640
of 10.7 MC.
MC
for
a
Geinngeraotfor+fre1 qvuoelnt cDyCon=hig10h.8s0i0deMoCf .10.7 MC for a read-
Center frequency is obtained by adding 10.640 and 10.800, then dividing by 2. For these readings it will be 10.72 MC.
Set generator frequency to 10.72 MC as this is center of selectivity curve as shown in Figure 6.
ote: Numerical vernier dial readings may be used instead f MC.
K.C.
IO 7 M.C.
10.64 M.C. 10.8 M.C.
Fig. 5
KC.
10.72 M.C.
10.64 M.C. I0.8M.C.1
F'g. 6
TYPICAL SELECTIVITY CURVES
CORRECT
Fig. 7.
CORRECT
Fig. 8.
CORRECT
Fig. 9.
INCORRECT Fig. 10.
FM RF ALIGNMENT PROCEDURE
Connect Signal Generator
Generator Frequency
Receiver Dial
Setting
Output Indicator and Connections
Adjust as Follows
6
Thru 250 ohms to FM ant. terminal.
109 MCt Tuning (unmodu- gang
lated). wide open
Connect VTVM (DC probe) from point "W" to ground.
*G for maximum VTVM reading.
104 MCI'
7
PP
(unmodu- 104 MC
lated).
*Tune in generator signal on receiver. Adjust H and I for max. VTVM reading.
*
t
It If
is advisable your signal
to adjust generator generator does not
output so reach this
VTVM readings do not exceed approximately + 1.5 V. DC
frequency, use harmonics as described in "FM Alignment"
after
peaking.
n n
n PILOT LIGHTS#47 1111
fi
Fig. 11. Bottom Trimmer Location
Fig. 12. Top Trimmer Location
AM ALIGNMENT PROCEDURE
Use regular output meter connected across voice coil. Be sure both the set and the signal generator are thoroughly warmed up before starting alignment.
Turn receiver Volume Control full on.
Use lowest output setting of signal generator that gives a satisfactory reading on meter.
Connect Signal Generator
Dummy Antenna Between Radio and Signal Generator
Signal Generator Frequency
Receiver Dial
Setting
Adj. Trimmers in Following Order to Max.
Set Band Switch to Broadcast Preliminary Alignment Steps."
Position (center) Loop antenna
and be can be
sure to follow instructions disconnected from chassis in
under Steps 1,
heading 2 and
"Important
3.
6SB7-Y
1
(Pin #8)
.1 MFD
455 KC
Tuning gang wide open
J, K, L, M
2
To loop ant. terminal
Direct connection
1620 KC
Tuning gang
wide open
N
3
To loop ant. terminal
Direct connection
1400 KC
Tune in signal
O
Set Receiver Chassis on table next to back of cabinet Connect Loop Antenna to Receiver.
4
To loop ant. terminal
10 MMFD (Or wrap several turns of generator lead around white loop lead.)
1400 KC
Tune in signal
P
©John F. Rider
www.americanradiohistory.com
PAGE 18-38 ADMIRAL
MODELS 9B14, 9B15, 9B16, CHASSIS 9B1
ADMIRAL CORPORATION
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www.americanradiohistory.com
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PAGE 18-8 AIR KING
MODEL 4706
AIR KING PRODUCTS CO., INC.
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AIR KING PRODUCTS CO., INC.
MODEL 4706
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PAGE 18-10 AIR KING MODEL 14706
AIR KING 'PRODUCTS CO., INC.
TUBE
PIN VTVM
20,000 OHM V
1,000 OHM V
RESISTANCE
12SK7 RF AMP.
1
0
2
AC
3
0
4
-0.1
5
0
6
+76
7
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0 AC 0 -0.2 0 +76 AC +40
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80 OHM
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12SA7 CONY.
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1 2
3 4
5
550 KC 1600 KC
6 7 8
0 AC +76 +76
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0 40 OHM OVER 500 K
OVER 500 K
20 K 20 K 0.6 OHM 50 OHM 2.8 MEG
12SK7 IF AMP.
1
0
2
AC
3
0
4
-1.3
5
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12SQ7 DET. AVC 1st AF
1
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0 400 K 400 K
OVER 500 K 16 OHM
0
3 5L6
AUDIO OUTPUT
35Z5
©John F. Rider
1
0
2
AC
3
+115
4
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5
0
6
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8
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100 OHM OVER 500 K OVER 500 K 460 K INFINITE 55 OHM 170 OHM
120 OHM 118 OHM
140 OHM
90 OHM OVER 500 K
www.americanradiohistory.com
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ALDEN, INC.
ALDEN PAGE 18-1 MODEL 1525
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PAGE 18-2 ALDEN
MODEL 1561
ALDEN, INC.
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www.americanradiohistory.com
CLARI - SKEMATIX Registered Trademark ALDEN, INC.
ALDEN PAGE 18-3
MODEL 1561
C35
LR 1B
S -2A C 36 CIA
13
PRI
7Q7
CONVERTER
RI C4
TI
1_
R3
C S
C6
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pb
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BAND -SWITCH SHOWN AT 2ND POSITION. BROADCAST BAND
550 -1650 KC.
7Q7
CONVERTER
LR18
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BAND -SWITCH SHOWN AT 3RD POSITION.
SHORT WAVE BAND
5.75 -18 25 MC.
© John F. Rider
www.americanradiohistory.com
PAGE 18-4 ALDEN MODEL 1561
ALDEN, INC.
Alignment: No attempt should be made to realign this receiver until it has been determined that a poor tube, or some local condition is not responsible for faulty reception. The Signal Generator may be connected through a 0.01 mf capacitor (used as a dummy antenna) to the lug on R. F. section (A) of tuning capacitor. Connect ground clip of generator directly to chassis. Align the I. F. trimmers to 455 K.C., using least possible input from the Signal Generator to avoid developing A.V.C. voltage which would make the tuning adjustments very broad. An output meter may he clipped across the voice
coil lugs. To align broadcast It. F. trimmers, remove the 0.01 mf capacitor and connect the Signal Generator
leads to two or three turns of heavy wire, forming a self-supporting loop of about 7 or 8 inches diameter placed about a foot away from the receiver's loop antenna. Again, use the least possible input from the Signal Generator. With the tuning plates completely out of mesh and the pointer at the extreme right end of travel, adjust the broadcast oscillator trimmer, on the under side of the chassis, to 1650 K.C. With tuning capacitor fully meshed adjust the padder on the chassis deck to 535 K.C. Readjust both Signal Generator and tuning capacitor to 1550 K.C. and adjust the R. F. trimmer on the loop
for maximum response. To align the short wave band connect the Signal Generator through a 0.01 mf capacitor and a 400
ohm resistor in series (used as a dummy antenna) to the antenna connection on the loop antenna. With the tuning capacitor plates completely out of mesh, and pointer at the extreme right end of travel, adjust the short wave oscillator trimmer (on the under side of the chassis) to 18.25 magacycles. Readjust both Signal Generator and tuning capacitor to 16 megacycles and adjust short wave antenna coil trimmer for maximum response. With tuning capacitor fully meshed, the receiver should tune to 5.75 megacycles, however, no adjustment is required at this point.
For checking purposes five marks are engraved on the front of the dial plate. These represent, in order, the pointer position with the capacitor plates fully meshed and the pointer settings for 600 kc, 8 mc,
16 mc, and 1550 kc.
Pushbuttons: To set pushbuttons remove pushbutton knobs. This will expose a set screw on the shaft of each pushbutton. Starting at one end push a pushbutton down and loosen its set screw. Set the bandswitch to the broadcast position. Bold the pushbutton down and tune the manual tuning control to the station to which the pushbutton is to be set. Still holding the pushbutton down tighten its set screw. The pushbutton may now be released and its knob replaced. It will now select the station to which it was set. The other pushbuttons may be set in a similar manner.
REPLACEMENT PARTS LIST
Circuit Part
Symbol Number
Item
Description
C-1A&B CV -9 Capacitor
Variable 2 -gang, Push-button
C-2
CT1-1 Capacitor
Trimmer 1.5-15 MMF
C-3
CT1-2 Capacitor
Trimmer 2.2-40 MMF
C-22
CT1-2 Capacitor
Trimmer 2.2-40 MMF
C-23
CT1-2 Capacitor
Trimmer 2.2-40 MMF
C-25
CX2-1 Capacitor
Padder
E-1
EH -9 Speaker
10" Electrodynamic
E-2
EH -14 Speaker
10" P.M.
L-1
LL-9 Loop Antenna
L-2
LO -4 Oscillator Coil Broadcast & S.W. Osc. Coils
Assembly
L-3
LR -4 S.W. Antenna Coil
R-23
RP8-105 Potentiometer 1 Meg. with 2 taps, Volume
Control
It -28
RP5-2 Potentiometer 0.5 Meg. with switch, Tone
Control
R-27 A & B RW3-1 Resistor
Wirewound 1350 Ohms 17 watt tapped at 500 Ohms
S-2 A, B & C SR -9 Bandswitch
T-1
TM2-4 Transformer
I. F. Input
T-2
TM2-5 Transformer
I. F. Output
T-3
TA -8 Transformer
Push-pull speaker output
T-4
TP -9 Transformer
Power
51.3
7B6
O AB
DO
0 ODO
00 7Q7
7H7 7C7
7C5 7C5
TUBE LOCATION
©John F. Rider
www.americanradiohistory.com
LL ---- -
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ALDEN, INC.
ALDEN PAGE 18-5 MODEL 1636L
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RECORD CANOERS: Crescent Model C-250, RCD.CH. 18-1
V -M Model 800, RCD.CH. 17-1
PAGE 18-6 ALDEN MODEL 1636L
ALDEN. INC.
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www.americanradiohistory.com
ALDEN PAGE 18-7
ALDEN, INC.
MODELS 1755, 1756,
1757, 1758
IRS
IU4
1S5
3V4
G-2 L-2
R-2
R
R2 l
R- 4 C5
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ALIGNMENT AND SERVICE DATA
PART NO IR- 20 IR- 23 IR-31 IR- 3
IR -12
U 1R-
114.39 R- 37
TC -7
MPCC-72
PC -6 EC -7
GC -5 LL -5 LO -12
LI -
SPK5 LI -4
TU 30
R -I R 2
R.3 R-4 R-5 R6 R7
R9
C- I C-2 C-3 C-4 C-5 C-6 G
C.2 L'' I L-2
TSw
T-2
S J
DESCRIPTION
220 FA", RESISTOR 112W
33MEC RESISTOR 1/2W
62U RESISTOR IOMEG RESISTOR
VI/22WW
I cVOLUUMMEE CONTROLW
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RESISTOR RESISTOR
IOM
RESISTOR
/2W
1/2W 1/2 W
20 X 20 T 10 X 20 X
20
250.X4
20 X
ANT TRIMMER
OSE TRIMMER ON GANG
100 MMFD MICA
.01 MFD .00SMFD
400 6°o
V V
20MF0 BOWV
CONDENSER CONDENSER
CONDENSER ELECTROLYTIC
GANG CONDENSER
LOOP ANTENNA
OSC COIL
IF TRANSFORMED l',r.I
DPST SWITCH ON VOLUME CONTROL
SPEAKER TRANSFORMER
PVMOICSEPECAOKILER
II
OUTPUT
IRS IUa - 155- 3v4
Remove chassis from cabinet for alignment. A signal generator is required having the following frequencies: 455 KC and 1400 KC An output meter should be connected across the speaker.
FIRST STEP: Connect the hot lead from the generator to the ANT. section cf the gang condenser, through a .1 MFD. condenser. The ground lead from the generator may be connected to any spot on the metal chassis. Turn the gang condenser to complete minimum capacity. Set the generator to 455 KC. Adjust the movable trimmers in the IF cans, until a maximum reading is noted on the output meter.
The volume control of the receiver should be turned to maximum during the IF and all subsequent alignment and the generator output as low as possible to prevent the AVC from working and giving false readings.
SECOND STEP: With the leads from the generator still connected as in IF alignment, adjust the generator to 400 KC. Set the dial pointer to 1400 KC on the dial scale. Adjust the oscillator trimmer until the signal is tuned in.
THIRD STEP: Remove the generator leads the hot lead from the generator through one of the leads which project from the
from the condenser. Connect a 200 MMFD. condenser to back of the loop antenna.
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TUBE AND TRIMMER LOCATION
©John F. Rider
BATTERY OPERATED
14 VÄ 90V'B-
VOLUME CONTROL OFF ON SWITCH.
TUNING SHAFT
PAGE 18-8 ALDEN II MODEL 1810
IR 51_
LOOP IO
MEG
ALDEN, INC.
1 IT4
1S5
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71-2-MOI
1
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3Q4
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PM -602
ELECTROLYTIC CONDENSER CE -40
30 MFD 150 VDC
A 25
200
10
I. F. 455
RANGE
16K0C 0-538
KC
u
SELENIUM
100
RECTIFIER
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2250 IOW
j y 1,4j .05
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AC -PC POSITION.
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$EVEREADY BATT. 747 OR EQUAL
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3 2
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3Q4
° O 'o®o IS5 IT4
n3 O
IRS
1 O CilU E
VOLUME 8 ON-OFF SWITCH
SELECTOR SWITCH
TUNING/
©John F. Rider
www.americanradiohistory.com
ALDEN, INC.
ALDEN PAGE 18-9
MODELS 1815, 1816
IRS
IU4
ISS
3V4
1C-3
G-2
C2
L-2
T -I C.4
T
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R 4
R R-9
R3S7fifC
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C-4 C5
C-3
R'6
R 7
C 4 CHASSIS GROLW
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9A77 - s.77
C -S T-2
ALIGNMENT AND SERVICE DATA
Remove chassis from quired having the following should be connected across
cabinet for frequencies: the speaker.
alignment. A signal 455 KC and 1400 KC.
generator An output
is re
meter
ART NO
IR IR
--2203
iIR -31
IR- 3 IR-
IR- 13
IN--39
IR -37
R-1 R-2 R-3 R-4
RÆ-á
R-7 R-8
R9
DESCRIPTION
22OM^RESISTOR 33AEG RESISTOR
82Mn RESISTOR
11014EG REE SLSTOR
1/7W 1/2W 1/2W V2 W
^ I2M2EE2 GRREESS,LISSETTOORR°N
620
10M
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RESISTOR RESISTOR
V/2LW
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1/2W
20 7. 20 Ici Y. 20 x 20:A 20 X
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TC -7
MCC--72 C-6
EC -7
cc -4 -,
LL -18 LO -I6 LI - 3
C.1 C-2 C-3 C-4 C-5 C-6
L-1 L-2
T- I
ANT. TRSAI.ER
OSC TRM6ER ON GANG
IOOMMFD MICA CONDENSER
Al MFD 400 V. CONDENSER
005MFD 2014FD
600
80W
V CONDENSER ELECTROLYTIC
GANG CONDENSER
LOOP ANTENNA 05C COIL I F TRANSFORMER INPUT
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during ss pos-
SECOND STEP: alignment, adjust on the dial scale.
With the leads from the generator the generator to 1400 I.C. Set the Adjust the oscillator trimmer until
still connected as In IF dial pointer to 1400 KC the signal is tuned In
SW
( 7.2
SPA- 8 -i VC LI -4 L TS-) TU -30
0PST SWITCH ON VOLUME CONTRC SPEAKER TRANSFORMER
THIRD STEP:
Remove the
generator
leads from the gang condenser
VOICE COIL PM SPEAKER IF TRANSFORMER OUTPUT IRS - IU4 - ISS- 3V4
Replace the receiver loop by the receiver and
chassis in the cabinet. Loosely couple the generator to thb
making a complete the generator still
turn over the outside of set at 1400 KC increase
the the
cabinet. WitH generator out
put. Adjust the Antenna trimmer through the hack of the chassis until a
maximum signal is noted on the output meter.
No further adjustment should be necessary ab the coils and gang condos.
ser in this receiver have alignment at the lower
been specially frequencies.
handled
at
the factory
to
Insure
proper
d NOTE:
as the reflect
"WAh" enantdhe"Ba"ntebnanttaertireismmmeurstisbaedijnustneodrmatal14p0o0sKitiCo.n, the proper loop impedance.
the in
chassis an wall the cabinet
A+
-Ä BATT
BATTERY LOCATION
TRIMMER
JG.OASNCT. . TRIMMER
ON-OFT SWITCH & VOLUME CONTROL UNDER TUNING SHAF T
TUNING
TUBE AND TRIMMER LOCATION
SHAFT
©John F. Rider
www.americanradiohistory.com
PAGE 18-10 ALDEN MODEL 1818
IRS
ALDEN, INC.
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DESCRIPTION
ISS MPS
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01 1470 150 VOLT PAPER CONDENSER
MFD 200 VOLT PAPER CONDENSER
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001 MPD 120 VOLT PAPER 1000I115ER .0001 AND 300 VOLT RICA /ONMNSER VANIASLE CON
1OSCILLATOR COIL TPANSPOWNER
ANTENNA LOOP
I IC 014M MATT 10% W.W. RESISTOR
7500 OMM I MATT 10% RESISTOR
2720 OMM 10 WATT 0% RESISTOR
1170 040
WATT RISISTON
1100 011M'/E WATT 10 % RESISTOR 170,000 OMM Ih SATT 10% RESI
0.2 rim 1/t WATT RESISTOR I MIS- 1/I WATT 'resume ss MIS. 14 WATT. RISISTON
IOMIS. I/2 SATT RESISTOR
I MES POTENTIOWITIR WITH SWITCH
MIS / WATT 10% 110111187011
15.000 ORM I/E WATT 11E315005
100,000 014M
WATT 10% RESISTOR
1/2
1 POLI SIMILE THROW SWITCH
SEASIS
OUTPUT TSANSPORN ER 111M RECTIFIES
TR,MMLC3 ON VARIAP.-E
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CP 505-1 CP 105 -2
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SW -
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©John F. Rider
www.americanradiohistory.com
ALLIED RADIO CORP.
ALLIED RADIO PAGE 18-1
MODEL 1113-176
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7400M-4CD0.-
I0V. ELECTROLYTIC 40150V. ELECTROLYTIC
AONSTCE.NNTARIMTRMIMEMRERCOCN:DON. D.
GANG CONDENSER
LOOP ANTENNA OSC. COIL INPUT LF TRANSFORMER OUTPUT IF TRANSFORMER LINE CORO
PART NO.
7-3
SPI( -5
SW -3
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DESCRIPTION
OUTPUT VOICE
SPEAKER COIL
TRANSFORMER
P M. SPEAKER
4 POLE 3 -POSITION 5W.
SELENIUM RECTIFIER
IA757. INSAT IMSGT 3QSAT
9 VOLTS
90 VOLTS
Remove chassis from cabinet for alignment.
A Signal Generator is required having the following frequencies:
455 KC, 1400 KC,
the speaker.
1720 KC.
An output meter should be connected across
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SECOND STEP: With same manner, adjust mer is locaicci on We
the the
top
leads from the generator still connected in the Signal Generator to 1720 KC. The OSC. trimof the oscillator section of the gang condenser.
Adjust this trimrnfr until the 1720 KC signal is tuned in.
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alignment at the lower frequencies.
TUBE AND TRIMMER LOCATION
RE
ANT TRIMME
AL . CORD
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ANT TRIMMER CHASSIS
105-125 VOLTS AC OR DC OR
T L-22
50-60 CYCLESBATT
©John F. Rider
\ VOLUME CONTROL
TUNING SHAFT
POWER SELECTOR.
www.americanradiohistory.com
AGE 18-2 ALLIED RADIO
MODEL 10C-249
ALLIED RADIO CORP.
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www.americanradiohistory.com
ALLIED RADIO CORP.
ALLIED RADIO P AGE 18-ç
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PAGE 18-4 ALLIED RADIO
MODEL 10C-249
ALLIED RADIO CORP.
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©John F. Rider
www.americanradiohistory.com
ASSOCIATED MERCHANDISING CORP.
AMC PAGE 18-1
MODEL 125P
TO EXT. ANT
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MODEL 125-P SCHEMATIC DIAGRAM
LINE VOLTAGE: This receiver is designed for operation on 105-125 Volts, 50-60 Cycles, either Alternating or Direct Current (AC -DC). POWER CONSUMPTION 30 Watts.
TUNING RANGE: Broadcast: 545 to 1620 Kilocycles (185 to 550 meters).
DIAL: The Dial Scale is calibrated in Kilocycles times 10 to correspond with newspaper or periodical listings.
I TUBES: The tubes used ar their functions are as follows:
12SA7 Converter 12SK7 I. F. Amplifier
12SQ7 Detector, Avc and Audio Amp. 50L6GT Beam Power Amplifier
35Z5GT Rectifier
CAUTION: If this receiver is operated on D. C. (Direct Cursent), and you cannot obtain reception although the tubes are lighted, reverse the line cord plug to obtain the correct polarity. Objectionable hum or noise may also be eliminated on A. C. operation by reversing the line cord plug.
©John F. Rider
PAGE 18-2 AMC
MODEL 125P
ASSOCIATED MERCHANDISING CORP.
ALIGNMENT: Should it become necessary at any time to check the alignment of this receiver, proceed as follows:
(1) Set the Signal Generator to 455 KC and connect to the Antenna Trimmer (Cl) of the Permeability Tuner. Connect the Signal Generator ground lead to the chassis. Connect a suitable Output Meter across the Speaker Voice Coil Connections. Turn the Volume Control to the maximum position. Turn the Permeability Tuner to the extreme clockwise position (cores out
of coils).
(2) Adjust the trimmers located at the top of the first and second I. F. Transformers for maximum output as indicated on the Output Meter.
(3) Set the Signal Generator to 1620 KC and loosely couple through a 2 or 3 turn loop to the receiver loop.
(4) With the Permeability Tuner set at the extreme clockwise position (cores out of coils), tune in the 1620 KC signal by means of the Oscillator Trimmer (C2).
(5) Set the Signal Generator to 1500 KC and turn the Tuning Control so that this frequency is indicated on the dial. Adjust the Antenna Trimmer (C1) on the Permeability Tuner for maximum output.
(6) Set the Signal Generator to 600 KC and turn the Tuning Control so that this frequency is indicated on the dial. Adjust the Oscillator Shunt Coil (C3) for maximum response while "rocking" the Signal Generator. Recheck the High Frequency Oscillator Trimmer (C2) and re-peak the Antenna Trimmer (C1) for maximum response.
Note: Oscillator and Antenna Coil Saddles have been set and adjusted at the factory. Do not attempt to readjust the Oscillator or Antenna Coil Saddles during the above alignment procedure or serious mis -tracking will occur, resulting in loss of sensitivity at various points in the band.
TRIMMER AND TUBE LOCATION DIAGRAM
INSTALLATION: The Model 125-P is complete in every detail for efficient and immediate operation. A self-contained Loop Antenna is included, which will give excellent results in most locations. Due to the directional properties of the Loop, it may be advantageous to turn the receiver to the left or right in noisy locations for maximum signal and minimum noise. A best position for reception can always be found. The "Amplicord" Antenna which is part of the line cord should be fully extended for reception of weak stations. In unfavorable loca-
tions where distant reception is required, a well -constructed outside antenna may be used, and connected to the Green wire labeled "Ant." at the rear of
the Loop.
©John F. Rider
www.americanradiohistory.com
ASSOCIATED MERCHANDISING CORP.
AMC PAGE 18-3
MODEL 1252
ANT ,GND
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LINE VOLTAGE: This receiver is designed for operation on 105-125 Volts, 50-60 Cycles, either Alternating or Direct Current (AC -DC).
POWER CONSUMPTION: 30 Watts.
TUNING RANGE: Broadcast: 540 to 1650 Kilocycles (180 to 555 meters).
DIAL: The Dial Scale is calibrated in Kilocycles times 10 to correspond with newspaper or periodical listings.
TUBES: The tubes used and their functions are as follows:
12BE6 Converter
12AT6 Detector, Avc and Audio Amp.
12BA6 I. F'. Amplifier
50B5 Beam Power Amplifier
35W4 Rectifier
CAUTION: If this receiver is operated on D. C. (Direct Current), and you cannot obtain reception although the tubes are lighted, reverse the line cord plug to obtain the correct polarity. Objectionable hum or noise may also be eliminated
on A. C. operation by reversing the line cord 'Aug
©John F. Rider
PAGE 18-4 AMC
MODEL 1252
ASSOCIATED MERCHANDISING CORP.
ALIGNMENT: Should it become necessary at any time to check the alignment of this receiver, proceed as follows:
(1) Set the Signal Generator to 455 KC and connect to the Stator Lug on the rear section of the Variable Capacitor. Connect the Signal Generator ground lead to the chassis. Connect a suitable output meter across the Speaker Voice Coil Connections. Turn the Volume Control to the maximum position. Turn the Variable Capacitor to the extreme clockwise position.
(2) Adjust the trimmers located at the top of the first and second I. F. Transformers for maximum output as indicated on the output meter.
(3) Loosely couple the Signal Generator Ground Lead to the loop and set to
1650 KC.
(4) With the Variable Capacitor set at the extreme clockwise position, tune in the 1650 KC signal by means of the Oscillator Trimmer on the Variable Capacitor (front section).
(5) Set the Signal Generator to 1500 KC and turn the Tuning Control so that this frequency is indicated on the dial. Adjust the Antenna Trimmer on the Variable Capacitor (rear section) for maximum output. No other adjustments are necessary.
V50 KC OSC RIMMER
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MODEL 125-Z
TRIMMER AND TUBE LOCATION DIAGRAM
INSTALLATION: The Model 125-Z is complete in every detail for efficient and immediate operation. A self-contained Loop Antenna is included, which will give excellent results in most locations. Due to the directional properties of the Loop, it may be advantageous to turn the receiver to the left or right in noisy locations for maximum signal and minimum noise. A best position for reception can always be found. In unfavorable locations where distant reception is required, a well-constructed outside antenna may be used, and connected to the Green wire labeled "Ant." at the rear of the Loop. A water or gas pipe may be used as a ground and connected to the Black wire labeled "Gnd." at the rear of the Loop.
MINOR REASONS FOR FAILURE TO FUNCTION: Defective tubes, defective Volume Control and On -Off Switch, line cord reversed on D.C., defective line
cord plug.
©John F. Rider
www.americanradiohistory.com
ANDREA RADIO CORP.
ANDREA PAGE 18-122
MODEL J5B
SECT 1 -REAR
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AUDAR INC.
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www.americanradiohistory.com
PAGE 18-2 AUDAR MODEL RER -9
AUDAR INC.
SPECIFICATIONS
117 Volts 60 Cycle AC ONLY -- 130 watts.
8 Multi -Purpose Tubes Including Rectifier Giving 13 Tube Efficiency.
Built-in Antenna.
6 x 9 oval Alnico V speaker. Broad Band Bass Boost with Treble Control.
TUBES USED
6SK7--R.F. Amplifier
6SA7--Mixer 6SF7--I.F.Amplifier, Diode Detector
and Automatic Volume Control
6SA7--Audio Amplifier and Volume Indicator Rectifier
6SN7 GT -- Microphone Preamplifier and Audio Amplifier
6V6 GT -- Power Output Amplifier
5Y3 GT -- Power Rectifier
6U5/6G5 -- Tuning Eye and volume level Indicat-
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Changer Compartment light - 10 watt, 117 volt, double contact, candelabra, bayonet - Mazda No. 1007 -DC
TUNING EYE
The6U5/6G5magic eye tube located inthe center of the dial is used as a tuning indicator when the selector switch is in the RADIO position. The tuning knob should be adjusted to cause the eye opening to be narrowest for perfect tuning. When the selector switch is in the RADIO RECORD or VOICE RECORD positions, this tube functions es a volume level indicator. It is not operative in the PHONO position.
©John F. Rider
www.americanradiohistory.com
AUDAR INC.
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AUTOMATIC PAGE 18-1
AUTOMATIC RADIO MFG. CO., INC. MODEL TOM THUMB
BUDDY
ü John F. Rider
www.americanradiohistory.com
PAGE 18-2 AUTOMATIC MODEL TOM THUMB BUDDY
U OM
CO., INC.
e John F. Rider
FLASHLIGHT CELLS SIZE D
www.americanradiohistory.com
AUTOMATIC PAGE 18-3
AUTOMATIC' RADIO MFG. CO., INC. MODEL TOM THUMB
BATTERY INSTALLATION INSTRUCTIONS
BUDDY
Flashlight Cell Installation
1.) Open Back door. 2.) Insert flashlight cells on each side of speaker frame as indicated in figure 2.
"B" Battery Installation
1.) Snap connector strip_ over "B" battery terminals. 2.) Insert bottom end of "B" battery to the extreme right -under frame of back cover. 3.) Drop top of battery into position over flashlight cells. 4.) Slide battery slightly to the left to locate centrally, under back door frame. NOTE: "B" battery can be removed by lifting top of battery by the connector strip terminal leads and reversing the above procedure. Batteries that have become badly swollen can be taken out by removing the back cover and door assembly.
BATTERY CHARGING
The "Charge"' feature contained in this model is only applied to the "B" battery. The inexpensive flashlight cells are not subjected to a charge.
Failure of the radio to operate on battery power will first be due to exhausted flashlight cells. The radio will operate again on battery power when these cells have been replaced.
The "B" battery under normal operating conditions without charge will last approximately three times as long as the flashlight cells.
The normal operating life of the ' B" battery can be extended from two to three times with charging as outlined below.
The following procedure should be followed when a battery charge is required. (Refer to figure 1 for
switch detail.) 1. Plug power line cord into AC or DC 117 Volt power line.
2. Turn "Off -On" Volume knob to the right until a click is heard. 3. Slide 3 -position Operation Selector Switch to "AC -DC" position. If radio operates, power outlet is
working satisfactorily. 4. Slide 3 -position Operation Selector Switch to "Charge" position. The battery is now on charge. The best possible performance on battery operation can be realized if the battery is periodically
charged for about as long a period as it has been in use, rather than wait until it has run down. For e._c r_zple, if the radio,has been operated for four h ours on battery, it should be on charge for at least four hours afterwards. In this manner the quality and s nsitivity of the radio will be at a maximum since the fully charged "B" battery will insure "new battery" performance.
This charge can be repeated many times until finally the "B" battery is completely dissipated and will no longer respond to a charge.
DO NOT REPLACE "B" BATTERY UNTIL RADIO FAILS TO OPERATE ON BATTERY POWER WITH NEW FLASHLIGHT CELLS.
Power Line Cord
The Power line cord is contained in the spiral groove on the inside of the back cover. For "AC -DC" or "Charge" operation, remove plug from post holder and unwind required length of cord necessary to reach available outlet. Wind back in spiral groove when not in use. If entire length of cord has been unwound, start rewinding from outside groove and work in towards the center. Put plug back into post holder.
THE FOLLOWING PROCEDURE SHOULD BE FOLLOWED TO REMOVE CHASSIS FROM CABINET FOR REPAIRING
1.) Remove knobs.
2.) Remove tri -mount snap fasteners securing loop cover (contained in front door) and unsolder loop leads.
3.) Remove three screws holding back frame and cover assembly in position. 4.) Slip off back frame and cover assembly. 5.) Remove cabinet body. 6.) Remove the mounting screws that secure chassis to three mounting brackets. 7.) Slide chassis out carefully spreading mounting brackets slightly if necessary.
e John F. Rider
www.americanradiohistory.com
PAGE 1$-4 AUTOMATIC
MODEL TOM THUMB CAMERA
AUTOMATIC RADIO MFG. CO., INC.
VISIBLE WINDOWS
TO OBSERVE FILM NUMBER
WINDOW "A"
WINDOW "B"
FILM WINDING KNOB
THUMB SCREW TURN AS INDICATED TO REMOVE BACK
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1. Remove knobs.
FROM CABINET FOR REPAIRING.
2. Remove bottom screw on back located below tuning dial window.
3. Remove back by dropping down slightly and lifting out.
4. Remove license label.
5. Unsolder speaker and bottom battery terminal leads.
6. Swing camera down.
7, Remove screw located in center of terminal board.
8. Drop chassis carefully so that control shafts clear inside top of cabinet and swing out.
® John F. Rider
www.americanradiohistory.com
AUTOMATIC PAGE 18-5
AUTOMATIC RADIO MFG. CO., INC. MODEL TOM THUMB
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PAGE 18-6 AUTOMATIC
MODEL TOM THUMB
AUTOMATIC RADIO MFG. CO., INC.
CAMERA
.
FILM REQUIRED FOR CAMERA:
AGFA A8 OR EASTMAN 127 OR EQUIVALENT.
TO LOAD AND UNLOAD CAMERA (See Figure 3)
Facing tuning dial, place thumb on camera top cover with other fingers on radio side and push camera away from knobs. An unlocking click will be heard as the camera hinges down and exposes all the necessary adjustments. Turn thumb screw to the left to remove back cover.
Always load and unload camera in shaded place, never in bright sunlight! Insert slotted end of spool into the winding knob at the top of camera. Then place film in empty receptacle at extreme opposite end. Fit ends of spool into the grooves (under film retainer spring). Push the roll down into the grooves which hold the roll. Then break seal on film and pull end towards empty spool. Thread end of film through widest side of slot in empty spool. Turn winding knob two or three times until paper rolls on empty spool. Replace back of camera. Be sure thumb screw is turned as far as it will go to be sure cover is on as tightly as possible.
TO WIND FILM
Suspend Camera -Radio in front of operator by means of adjustable shoulder strap so that camera lens faces subject to be photographed. Unlock camera by pushing camera top away from knobs as mentioned previously. The camera will hinge down and expose necessary controls.
Turn winding knob slowly and watch film pass red window "A". When the figure "1" appears in the center of Window "A", you are ready to take the first picture. Swing camera back into position again pressing the camera firmly towards the knobs until a slight click is heard. This indicates that the camera is properly locked in place. After taking this picture swing camera down again exposing control and wind knob slowly until figure "1" appears
- in red window "B". Theh táke second picture. After this picture is taken, turn knob until figure "2': appears in
window "A". After snapping the picture, turn knob until figure "2" appears in window "B" In this manner 2 pictures are taken for each number appearing on the film roll one in window "A", one in window "B". When number "8" appears in the center of window "B", you have taken 16 pictures. When you have taken all of the pictures, keep turning knob in same direction until the complete roll of film including the red paper is all wound
on the top spool.
TO REMOVE FILM
Open back of camera as when loading Then press down on spring holding film roll and lift out spool of film. Now, seal roll with piece of gummed paper attached to end of roll so that it will not unroll.
HOW TO TAKE PICTURES
Open cover at top by placing thumb and forefinger on bottom of cover and lift upward. Look down into ground glass enclosed under cover. Point lens of camera at object you want to photograph. Object you see reflected there will appear on your finished picture. By moving camera closer or further from object, you can gauge the proportions and size desired in finished print. When ready to photograph, hold camera steady; then press lever firmly and picture has been taken. NOTE: Always have sun behind you with object' being photographed facing
sun!.
SHUTTER
The shutter has been carefully adjusted to give you maximum excellent reults for all standard shots! It has also been regulated to enable you to take clear, clean photographs of landscapes, groups, portraits, and "action shots." To adjust shutter for instant or time exposure, merely move indicator at left of camera to either INST. or
TIME.
FOR INSTANTANEOUS PICTURES
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TIME EXPOSURE
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:'TIME"_ Place Camera-Radio on hold Camera -Radio in hands for
a solid support (a table or bench) so that Camera-fladio time shot.) Then press shutter lever and hold down until
you have counted the pending upon lighting
required number of seconds conditions.) Then picture is
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usually being INST. daylight
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IMPORTANT: To obtain best results, subject to be photographed should be at least 8 feet away from camera.
"LARGER" CONTACT PRINTS
Most photo finishers throughout the country are equipped with contact enlargement printers that produce ap-
proximately 31/4"x4" prints from the negatives you get with this camera.
they
Retail prices for these cost only slightly more
enlarged prints vary in different than ordinary quality prints. See
sections of the United States. However, your dealer for further information.
in
most
cases
INSTRUCTIONS
Be sure lenses are clean. Use soft, clean cloth. Keep interior of camera free from dust. Be sure cover is tightly closed before taking picture. Be sure film is wound as tightly as possible before opening camera to remove film.
©John F. Rider
www.americanradiohistory.com
AUTOMATIC PAGE 18-7
AUTOMATIC RADIO MFG. CO., INC.
MODELS P30, P33
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PAGE 18-8 AUTOMATIC
MODEL 677
AUTOMATIC RADIO MFG. CO., INC.
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AUTOMATIC PAGE 18-9
MODELS :01, 802
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©John F. Rider
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RANGE 540-1650 KC IF FREQ 455 KC
VOLUME
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BELMONT RADIO CORP.
BELMONT PAGE 18-1
MODEL B- AF21
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www.americanradiohistory.com
PAGE 18-2 BELMONT
MODEL B-8AF21
BELMONT RADIO CORP.
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www.americanradiohistory.com
BELMONT RADIO C
BELMONT PAGE 18-3
MODEL B-:AF21
ALIGNMENT PROCEDURE
FM Band Section I.F. and R.F. A non-metallic alignment tool must be used.
IMPORTANT- No alignment of the FM section of this radio should be attempted unless you are positive that the circuits are in need of ad-
justment and you have the necessary equipment. All components used in this radio
are extremely stable and the tuned circuits should require no adjustment over a long period of time.
NOTE- The following alignment
is based on the use of the new Simpson vacuum tube volt-meter which has a "floating ground". In other
words, the meter, when used as a vacuum tube volt-meter can have both the positive and negative sides connected to points above ground and still give true readings.
A standard AM signal generator is required.
SIGNAL GENERATOR FREQUENCY
10.7 Mc. Use about .1 volt
10.7 Mc. Use about .1 volt
10.7 Mc. Use about 3300 microvolts
10.7 Mc. Use about 200 microvolts
FM - I.' F. ALIGNMENT
Band Switch in FM Position. Dummy Antenna .1 Mfd.
CONNECTION TO RADIO
Pin No. 1 of
6BA6 No.3 and ground
VACUUM TUBE VOLT METER CONNECTION TO RADIO
Pin No. 2 of 6AL5 and ground
ADJUSTMENTS TO BE MADE
Primary of T10
Pin No. 1 of
6BA6 No. 3 and ground
See note "A"
Secondary of T10
Pin No. 1 of 6BA6 No. 2 and ground
Pin No. 2 of 12AT7 and
ground
Pin No. 2 of 6AL5
andground
Pin No. 2 of 6AL5 and ground
Primary and Secondary of T9 10.7 m.c. windings
See top and bottom views.
Primary and Secondary of 10.7 m.c. windings of T8 See top and bottom views.
ADJUST FOR
Resonance should be about 3 volts
Zero. Use zero center scale
See note "B"
Resonance should be about 3 volts
Resonance should be about 3 volts
NOTE "A." Connect two resistors, 100K OHMS each, from Pin No. 2 of 6AL5 to ground. These resistors
must be matched within 5%. Connect as shown in dotted lines on schematic diagram. Connect vacuum tube volt -meter between the mid-
NOTES ON FM-I.F. ALIGNMENT
point of the resistors and point zz.
NOTE "B." If T10 has been tampered with, it is possible that no crossover point will be found at first. Careful adjustment of both primary and secondary is necessary.
GENERAL: Input signals should be adjusted to give approximately 3
volts. The ratio detector is operating at a reasonable level at this point and will give the truest in-
dication of correct alignment with the procedure specified.
FM -R. F. ALIGNMENT
Check center of pointer so that it coincides with the marker to the extreme right on the calibration strip when iron cores are all the way out. For adjustment, see dial mechanism illustration.
SIGNAL GENERATOR FREQUENCY
100 Mc. Use about 25 microvolts
CONNECTION TO RADIO
FM Antenna Terminals See note
DUMMY ANTENNA 300 ohms
NOTE: If a signal generator with the above fundamental frequency is not available, it is sometimes possible to use harmonics. Use extreme care in picking harmonics. An alternate procedure is to use a local station carrier of known frequency to align the FM Band and to use the vacuum tube volt -meter
ADJUST
C10 Osc. C19 R. F. CI Ant.
VACUUM TUBE VOLT METER CONNECTION
TO RADIO
Pin No. 2 of 6AL5 and Ground
ADJUST
Resonance about 3 volts
as above for resonance indication. A weak carrier, however will not produce 3 volts. NOTE: Connect 300 ohms in series with hot side of generator and connect to one screw. Connect cold side of generator to other screw.
©John F. Rider
www.americanradiohistory.com
MODEL B-8AF21
BELMONT RADIO CORP.
ALIGNMENT PROCEDURE
Broadcast Band Section I.F. and R.F.
The alignment procedure below includes the sensitivities at the inputs of various stages. All signal input values are based
un an output of 1/2 watt. This may be measured by disconnecting the speaker voice coil and substituting a 3.2ohm resistor across the secondary winding of the output transformer. A reading of 1.3 volts AC across this resister will be approximately equivalent to a 1/2 -watt output with the speaker con-
- nected. The volume control must be set at maximum. The tone control must be set for maximum treble.
The signal source must be an accurately calibrated signal generator capable of supplying the frequencies designated, modulated 30% with a 400 -cycle audio signal. A 400 cycle audio signal is required for the audio measurement. Variations in sensitivities of plus or minus 25% are usually permissable.
AM -I. F. ALIGNMENT
Band Switch in AM Position. Tune Set to 1400 Kc. Dummy Antenna .1 M fd.
SIGNAL GENERATOR FREQUENCY
CONNECTION TO RADIO
ADJJUSTMENTS TO BE MADE
455 Kc. Use 2400
microvolts
Pin No. 1 of 6BA6 No. and ground
Primary and Secondary of T9 AM windings. See top and bottom views.
455 Kc. Use 70 microvolts
12ÁT7See Pin No. 2
of and ground
Primary and Secondary of T8 AM windings. top and bottom views.
400 60
cycles. Use millivolts
Hot end of volurne control and ground
None
ADJUST FOR
Maximum output. Should be 1/2 watt.
Maximum output. Should be 1/2 watt.
Maximum out put. Should be 1/2 watt.
BROADCAST BAND -R. F. ALIGNMENT
Check center of pointer so that it coincides with the marker to the extreme right on the calibration strip when iron cores are all the way out. For adjustment, see dial mechanism illustration.
SIGNAL GENERATOR FREQ. CONNECTION TO RADIO
DUMMY ANTENNA
ADJUST
1620 Kc.
AM Antenna and Ground
200 mmf.
C
trimmer
for maximum
535 Kc.
1620 Kc. Use 5 microvolts
AM Antenna and Ground AM Antenna and Ground
200 mmf. 200 nnmf
TS for maximum 1/2 watt
C4 and C18 for max. 1/2 watt. See note
NOTE: Re -check first two adjustments after this adjustment because of inter -locking effects.
Procedure for disassembly and assembly of dial mechanism.
RATIO DET. TRANS.
,' O®wñ 6BÁ6 va
sM BC
6AL5
.a®rM.
.jvsFM. O
6ÁQ5 V7 PO
SOD
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0 ó Ern 0 V6
Ad.
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a
2ND LE V3 15: I.E
TRANS.6BA6 TRANS. -. 2220-2
TO ALIGN POINTER-Loosen bracket screw "A". Then tape guide bracket can be moved up to allow proper meshing of tape teeth with pinion gear. Re -adjust bracket to eliminate
backlash.
j
TAPE GUIDE
TUNING SHAFT
POINTER
CALIBRATION SCALE
-- :RACKET
® I
SCREW A
_M- 0
TAPE
PINION GEAR
TAPE GUIDE BRACKET
,.e. _ ,... ,
©John F. Rider
www.americanradiohistory.com
BELMONT RADIO CORP.
BELMONT PAGE 18-5
MODEL B-8AF21
Rei. No.
Part No.
REPLACEMENT PARTS LIST
Description
Qty. Used
Ref. No.
Part No.
Description
Qty. Used
TUNER CHASSIS PARTS
Condensers
C10
A -8E-13575 Trimmer condenser
C1, 4, 11, A -2M-12618 Trimmer cond. plate
5
19, 18
C3, 16
C-8G-11732 470 mmf ±20%
2
C2
C -8G-13695 1000 mmf, ±20%
1
C8, 7, 9, 14, C-8G-13201 1000 mmf, +20%-10% 6
54, 55
C5 C17 C12 C6 C56 C15
C -8G-13018 C -8G-11731
C-8G-13017 C-8G-11484 C -8G-11789 A -8G-12495-6
62 mmf, ±10% 1500 mmf, ±20% 15 mmf, +10% 50 mmf, ±10% 10 mmf, ±10% 4.7 mmf, ±20%
C13
A -8G-12495-4 2.2 mmf, ±20%a
C44
C-8D-11304 .02 mfd, 200 volts,
R4
R1
R3 R5 R6 R9 R2, 11 R10 R23
R7 R12
C -9B2-79 C -9B1-21 C-9131-52 C -9B1-17 C -9B1-11 C-9131-19 C -9B1-31 C -9B1-62 C -9B1-34 C -9B1-50
C-9B1-42
Resistors
27K ohms, 1 watt, 10%
22K ohms, 1/2 watt, 20% 150 ohms, 1/2 watt, 10% 4700 ohms, 1/2 watt, 20%
470 ohms, 1/2 watt, 20%
10K ohms, 1/2 watt, 20%
1 megohm, 1/2 watt, 20% 2
1000 ohms, 1/2 watt, 10% 1
3.3 megohms, 1/2 watt, 20% 1
100 ohms, 1/2 watt, 10%
1
22 ohms, 1/2 watt, 10%
1
Coils
T3
B -13D-13027 FM oscillator coil assembly 1
Ti
B -13E-13028 FM antenna coil assembly 1
T6
B-13C-13029 FM R.F. coil assembly
i
T4
B -13D-13030 AM oscillator coil assembly i
T2
B -13E-13031 AM ant, coil assembly
1
T7
B-13C-13032 AM R.F. coil assembly
1
Ll
A -16A-13033 Choke coil assembly
1
T5
B-13D-12974 AM osc. shunt coil assembly 1
Miscellaneous
B-208-13553 Band change slide switch 1 or
B-201-12967 A -15B-12997
A-1513-13430 A-200-12912 A -25A-13019
Band change slide switch 1
7 prong, min., tube socket 1
9 prong, min., tube socket 1
Drive bracket assembly
1
Core grommets, for AM
A-3M-13020 A -49A-12394 B -2D-12316 B -2J-12922
B -2G-10588 A-200-15059
band
3
Insert for core grommet 3
Spiral spring for FM cores 3
Tape guide
1
Rack tape, with teeth and
pointer bracket A -2D-11194 1
Pointer
1
Drive, pinion and lead screw
assembly
1
A-200-15004 Guide and pointer bracket 1
MAIN CHASSIS PARTS
C49B, 49C, A -8C-13555
49A
C50
C -8D-10935
C26, 27, 32, C-8D-10761
33, 34,37, 45
C57
C -8D-10785
C41
A -8C-13 i 32
C43
C -8D-10787
C52
C -8D-10770
C51, 46
C -8D-10774
C48
C -8J-11321
C25, 47
C -8G-13131
C24, 40, 53 C -8G-13201
C42
C -8F3-229
C38,39 A -8F-13127
Condensers
Ilectrolytic, 20-20 x 350 volts;
20 x 25 volts
1
.005 mf x 600 volts
1
.01 mf x 400 volts, 20% 7
.006 mf x 600 volts, 20% 1
Electrolytic, 10 mf x 50 volts 1
.001 x 600 volts, 20%
1
.05 x 200 volts, 20%
1
.02 x 400 volts, 20%
2
.02 x 600 volts, 20%
1
100 mmf, ceramic, 10%
2
1000 mmf, ceramic, 20% 3
150 mmf, mica, 5%
1
.0001 mf, dual mica, 20% 1
C22, 23
C-8G-12160 91 mmf, ceramic, 5%
2
C20
C-8G-13026 51 mmf, ceramic, 5%
1
C30, 31
C-8G-13025 150 mmf, ceramic, 5%
2
CV, 28, 29 C-8G-12159 30 mmf, ceramic, 5%
3
C35
C-8G-11789 10 mmf, ceramic
1
C36
C-8G-11891 51 mmf, ceramic
1
Resistors
R30, S1 A -10A-13114 Volume control (500K ohms) and
switch
1 -
R34, SA, SB A -11A-13115 Tone control (500K ohms) and
radio -phono switch
1
R32
C -9B1-27
220K ohms, 1/2 watt, 20% 1
R15, 18
C -9B1-48
68 ohms, 1/2 watt, 10%
2
R14
C -9B1-31
1 megohm, 1/2 watt, 20% 1
R19, 16
C -9B2-78
22K ohms, 1 watt, 10% 2
R24, 28
C -9B1-80
33K ohms, 1/, watt, 10% 2
R21
C -9B1-79
27K ohms, 1/2 watt, 10% 1
R8 R22
-9131-2347K C-9132-71 -9132-71C-9131-23
C
5600 ohms, 1 watt, 10% ohms, 1/2 watt, 20%
1 1
R29
C -)B1-21
22K ohms, 1/2 watt, 20% 1
R31
C-9131-35
4.7 megohms, 1/2 watt, 20% 1
R25, 27, 33 C-9131-29
470K ohms, 1/2 watt, 20% 3
R35
C -9B1-55
270 ohms, 1/2 watt, 10% 1
R26
C-9131-36
6.8 megohms, 1/2 watt, 20% 1
R13, 20, 17 C-9B1-13
1000 ohms, 1/2 watt, 20% 3
Coils
T8
C-13A-13009 Input I.F. transformer, combination
455 -Icc. and 10.7 mc.
1
T9
C-13B-13014 Second I.F. transformer, combination,
455 kc. and 10.7 mc.
1
T10
C-203-11745-1 Ratio detector coil assembly
10.7 mc.
1
L3
A -16A-13243 Loop loading coil
1
L4
B-14MÁ-11066-10 Loop antenna ribbon 1
Transformers
T12
B -12A-13120 Power transformer, primary, 50-60
cycles. 105-125 volts A.C. 1
T11
B-12C-13556 Output transformer, for
speaker
1
Speaker
L2
B-18B-14140 Electrodynamic speaker, 10-inch,
less output transformer 1
M iscellaneous
C -30A-14499 B -5B-13978-37
B -5B-13978-14
B -5B-13737-37
B -5B-13737-14
B -5C-15078-37
B -5C-15078-14
B-14M-11479 A-3A-12933 A -55C-12935 B -47A-12458-2
Dial scale
1
Knob, mahogany, "Tone and
Volume"
2
Knob, walnut, "Tone and Vol-
ume"
2
Knob, mahogany, "Tuning and
Bandswitch"
2
Knob, walnut, "Tuning and
Bandswitch"
2
Escutcheon side pieces,
mahogany
2
Escutcheon side pieces,
walnut
2
Line cord and plug
Band switch shaft
1
Ball bearing
1
Pilot lite and bracket assem-
bly
1
A -46A-11739 Pilot lite, 6-8 volts, T-44 2
A -15G 13174 Miniature socket, 7 prong 5
A -15B-10440 Octal socket, 8 prong
1
A-1913-12644 Loop antenna socket
1
B-7B-13050 FM terminal strip
1
A-1513-11538 Speaker socket
1
A-19B-12468 Phono motor socket
1
A -19B-12170 Phono input socket
1
A-25A-13818 Chassis rubber grommet 4
REC ORD CHANGER
B-201-14063-1 CIOM Changer with Webster Re-
tracto cartridge
1
Webster Retracto Crystal cartridge with needle 1
©John F. Rider
www.americanradiohistory.com
PAGE 18-6 BELMONT MODEL C-10AF21
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RECORD Ci-BANGER: Russell Model C-10, RCD.CH. 18-1
www.americanradiohistory.com
BELMONT RADIO CORP.
BELMONT PAGE 18-7
MODEL C-10AF21
ALIGNMENT PROCEDURE
FM Band Section I.F. and R.F. A non-metallic alignment tool must be used.
IMPORTANT- No alignment of the FM section of this radio should be attempted unless you are positive that the circuits are in need of adjustment and you have the necessary equipment.
All components used in this radio
are extremely stable and the tuned circuits should require no adjust. ment over a long period of time.
NOTE-The following alignment
is based on the use of the new Simpson vacuum tube voltmeter which has a "floating ground". In other
words, the meter, when used as a vacuum tube volt -meter, can have both the positive and negative sides connected to points above ground and still give true readings. A standard AM signal generator is required.
FM-I.F. ALIGNMENT
Band Switch in FM Position. Dummy Antenna .1 Mjd.
SIGNAL GENERATOR FREQUENCY
CONNECTION TO RADIO
VACUUM TUBE VOLT METER CONNECTION TO RADIO
ADJUSTMENTS TO BE MADE
ADJUST FOR
10.7 Mc. Use
No.and about .1 volt
Pin No. 1 of
6BA6
3 and
ground
Pin
No.
2 of 6AL5 ground
10.7 Mc. Use
6BA6Resonance about .1 volt
Pin No. 1 of 6BA6 No. 3 and
ground
See note "A"
Primary of T5 Secondaryof T5
Resonance should be about 3 volts
should be about 3 volts
10.7 Mc. Use about 3300 microvolts
Pin No. 1 of
6BA6 No. 2 and ground
pin No. 2 of 6AL5 and ground
Primary and Secondary of T4 10.7 m.c. windings
See top and bottom views
Zero. Use zero center scale
See note "B"
10.7 Mc. Use about 200 microvolts
Pin No. 2 of
12AT7 and ground
Pin No. 2 of 6AL5
andground
Primary and Secondary of 10.7 m.c. windings of T3 See top and bottom views
Resonance should be about 3 volts
NOTE "A" Connect two resistors, 100K OHMS each, from Pin No. 2 of 6AL5 to ground. These resistors must be matched within 5%. Connect as shown in dotted lines on
schematic diagram. Connect vacuum tube voltmeter between the mid -
- NOTES ON FM I. F. ALIGNMENT
point of the resistors and point zz.
NOTE "B" If T5 has been tampered with, it is possible that no crossover point will be found at first. Careful adjustment of both primary and secondary is necessary.
GENERAL Input signals should be adjusted to give approximately 3 volts. The ratio detector is operating at a resonable level at this point and will give the truest indication of correct alignment with
the procedure specified.
FM-R.F. ALIGNMENT
Check pointer so that the right hand edge of the pointer skirt coincides with the right hand edge of marker to the extreme right when iron cores are all the way out.
For Adjustment, see dial mechanism illustration.
SIGNAL GENERATOR FREQUENCY
100 Mc. Use about 10 microvolts
CONNECTION TO RADIO
FM Antenna Terminals See note
DUMMY ANTENNA 300 ohms
ADJUST
C58 Osc. C60 R. F. C56 Ant.
VACUUM TUBE VOLT METER CONNECTION
TO RADIO
Pin No. 2 of 6AL5 and Ground
ADJUST TO
Resonance about 3 volts
NOTE: If a signal generator with the above fundamental
frequency is not available, it is sometimes possible to use harmonics. Use extreme care in picking harmonics. An alternate procedure is to use a local station carrier of known frequency to align the FM Band and to use the vacuum tube volt -meter
as above for resonance indication. A weak carrier, however will not produce 3 volts. NOTE: Connect 300 ohms in series with hot side of generator and connect to one screw. Connect cold side of generator to other screw.
©John F. Rider
www.americanradiohistory.com
PAGE 18-8 BELMONT
MODEL 0-10AF21
BELMONT RADIO CORP.
ALIGNMENT PROCEDURE
Broadcast Band Section I.F. and R.F.
The alignment procedure below includes the sensitivities at the inputs of various stages. All signal input values are based
on an output of t/2 watt. This may be measured by disconnecting the speaker voice coil and substituting a 3.2 -ohm resistor across the secondary winding of the output transformer. A reading of 1.3 volts AC across this resistor will be approximately equivàlent to a 1/2.-watt output with the speaker con-
nected. The volume control must be set at maximum. The tone control must be set for maximum treble.
The signal source must be an accurately calibrated signal generator capable of suppling the frequencies designated, modulated 30% with a 400 -cycle audio signal. A 400 cycle audio signal is required for the audio measurement. Variations in sen-
sitivities of plus or minus 25% are usually permissable.
AM-I.F. ALIGNMENT
Band Switch in AM Position. Tune Set to 1400 Kc. Dummy Antenna .1 Affd.
SIGNAL GENERATOR FREQUENCY
CONNECTION TO RADIO
455 Kc. Use 1000
microvolts
Pin No. 1 of
6BA6 No. 2 and ground
455Kc. Use 30 microvolts
Pin No. 2
of 12AT7 and ground
400 cyycles. Use 28 millivolts
Hot end of vol urne control and ground
ADJUSTMENTS TO BE MADE
Primary and Secondary of T4 AM windings See . top and bottom views
Primary and Secondary of T3 AM windings See top and bottom views
None
ADJUST FOR
Maximum output Should be 1/2 watt
Maximum output Should be 1/2 watt
Maximum output Should be 1/2 watt
BROADCAST BAND-R.F. ALIGNMENT
Check pointer so that the right hand edge of the pointer skirt coincides with the right hand edge of marker to the extreme right when iron cores are all the way out.
For Adjustment, see dial mechanism illwstration.
SIGNAL GENERATOR FREQ. CONNECTION TO RADIO
DUMMY ANTENNA
ADJUST
1620 Kc.
AM Antenna and Ground
200 mmf.
C59 Osc. trimmer for maximum
535 Kc.
1620 Kc. Use 3 microvolts
AM Antenna and Ground AM Antenna and Ground
200 mmf, 200 mmf.
T12 for maximum 1/2 watt
C57 and C61 for max. /2 watt. See note
NOTE: Re -check first two adjustments after this adjustment because of inter-locking effects.
Procedure for disassembly and assembly of dial mechanism
RATIO DET.
TRANS.
fl 7 o ÁY f.A
6AL5
nq0
6BA6
oo
o6AT6 2ND I F. TRANS.
o
T4
6SN7GT
6
15T I.EaTRANS.
©
°b ©
+Q
6V6GT 6V6GT
!a coo
ne
,
41:: 00
Loosen screws "C" and "D" so that teeth of tape can be pro perly meshed with pinion gear to give proper pointer travel
©John F. Rider
www.americanradiohistory.com
5U4G
BELMONT RADIO CORP. 6AL 5
(SHELDED)
BELMONT PAGE 18-9
MODEL C-10AF21
RATIO DET. TRANS.
POWER
TRANSFOR-
MER
FM
TRIMMERS
6BA6
FM (5HELDED)
CRF60FM ERS AM
T3
PT I.F. TRANS.
T4
O
2^'D I.F. TRANS.
6BA6
(SHIELDED)
6SN7GT 6V6GT
6V6GT
\ "r
LINE COR
ELECTRO LYTIC
OUTPUT TRANSFORMER
PHONO PICKUP SOCKET
SPEAKER PHONO MOTOR
LOOP ANT.
SOCKET
SOCKET
SOCKET &
F.M. ANTENNA TERMINALS Chassis-top view
EXT AM ANT
TUNING SHAFT I1 TUNINGS BRACKET
B.C. 4NT. COIL
Fu TANT. COL
F.MR.F.
C58 18
SC.
COIL
COIL
T9
BC.OSC
COIL
COIL
TUNER ADJUSTMENT
. 55
60
10
. 80 90 100 110 140 160
F. Ili 90 94 9
0 .
.. 11Z 11E 109
__---,...,
RADIO -PHONO
SWITCH
AND TONE CONTROL
ON-OFF SWITCH AND
VOLUME CONTROL
TUNING KNOB
BAND SWITCH
With tuner all the way out, dimension "X" should be 11/2 inches. "Y' should be 1-1/16 inches. "X" is from the end of the slug to edge of the coil winding. Check these dimensions before R.F. alignment is attempted of either the AM or FM Band. No slug adjustment should be necessary since the slugs are properly set at the factory.
©John F. Rider
www.americanradiohistory.com
PAGE 18-10 BELMONT
MODEL C-10AF21
BELMONT RADIO CORP.
REPLACEMENT PARTS LIST
Ref. No.
Part No.
Description
sd
TUNER PARTS
Condensers
C8
A -8E-13575 Trimmer condenser
C56, 57, 59, A-2M-12618 Trimmer cond. plate
5
60, 61
Cl, CIi C-8G-11732 470 mmf, ±20%
2
C2
C-8G-13695 1000 mmf, ±20%
1
C6, 7, 9, 14 C-8G-13201 1000 mmf, +20%-10% 6
51, 53
C4
C-8G-13018 62 mmf, ±10%
C12
C-8G-11731 1500 mmf, ±20%
C10
C-8G-13017 15 mmf, +10%
C3
C-8G-11484 50 mmf, ±10%
C8
C-8G-11789 10 mmf, ±10%
1
C13
A-8G-12495-6 4.7 mmf, ±20%
1
C15
A -8G-12495-4 2.2 mmf, ±20%
C5
C-8D-11304 .02 mfd. 200 volts, ±20% 1
R4
R1 R3 R5 R6 R8 R2, RIO R9 R21
R45 R46
C -9B2-79
C-981-21
C -9B1-52 C-981-17 C -9B1-11
C -9B1-19 C-981-31 C-9B 1-62 C-981-34 C -9B1-50 C-981-42
Resistors
27K ohms, 1 watt, 10% 1
22K ohms, 1/2 watt, 20% 1
150 ohms, 1/2 watt, 10%
1
4700 ohms, 1/2 watt, 20% 1
470 ohms, 1/2 watt, 20% 1
10K ohms, 1/2 watt, 20% 1
1 megohm, 1/2 watt, 20% 2
1000 ohms, 1/2 watt, 10% 1
3.3 megohms, 1/2 watt, 20% 1
100 ohms, 1/2 watt, 10% 1
22 ohms, 1/2 watt, 10%
1
Coils
T8
B-13D-13027 FM oscillator coil assembly
T6
B-13E-13028 FM antenna coil assembly
T10
B-13C-13029 FM R.F. coil assembly
T9
B- 13D- 13030 AM oscillator coil assembly
T7
B-13E-13031 AM antenna coil assembly
T11
B- 13C- 13032 AM R.F. coil assembly
L1
A -16A-13033 Choke coil assembly
T12
B-13D-12974 AM osc, shunt coil assembly
Miscellaneous
B-208-13553 or
B-201-12967 A-ISB-12997 A -15B-13430 N-200-13802
A -3A-12308-1 A -3J-12309 A -49A-13447 A -25A-13019 A -3M-13020 A -49A-12394 C -2D-12990 B -2J-13006
A -5M-13741 32F6SE-5274
Band change slide switch 1
Band change slide switch 1
7 prong, min. tube socket 1
9 prong, min. tube socket 1
Pointer guide and bracket 1
assembly
Lead screw
1
Pinion gear for lead screw 1
Tension spring for lead screw 1
Core grom., for AM band 3
Insert for core grommet 3
Spiral spring for FM cores 3
Tape guide
1
Rack, with teeth, with
A -2D-11194 bracket
i
Pointer
1
6-32x1/2" screw to mount
pointer
1
MAIN CHASSIS PARTS
Condensers
63A, 63B B-8C-11629
C21
C -8G-11734
C37
C -8F3-229
C38
C-8G-13059
C34
C -8G-13060
C20, 23, 24, C-8D-10785
30, 31, 43, 44
C22, C29 C -8D-10761
C45,46 C -8D-10813
C55
A -8C-12154
C49 C39, 40
C41
C -8D-10789
C -8G-13201 A -8C-13132
C62
C -8J-11321
C48
C -8D-10770
C50
C -8G-11741
C42
C -8D-11304
Electrolytic condenser, dual,
30-30 x 450 volts
1
100 mmf, 20%, ceramic I
150 mmf, mica
1
1500 mmf, ceramic
1
51 mmf, ceramic
1
.006 mf x 600 volts, paper 7
.01 mf x 400 volts, paper 2
.05 mf x 400, paper
2
Electrolytic condenser
10 mf x 450 volts
.002 mf x 600 volts, paper i
1000 mmf, ceramic
2
Electrolytic condenser, 10 mf
x 50 volts
1
.02 mf x 600 volts
1
.05 mf x 200 volts
1
330 mmf, ceramic
1
.02 mf x 200 volts
Ref. No.
Part No.
Description
Qty Used
C52 C47, 54 C35, 36 C32 C33 C27, 28 C17, 25, 26 C18, 19 C16
R27
R31
R32 R29, 44 R39, 41 R33, 34 R30 R23, 28 R20 R22 R13, 16 R14, 17 R24, 26, 37 R25 R19 R7 R12, 35, 43 R40 R36, 42 R38 R47 R18 R15, 11
T3
T4
T5
L3 L4
T2
C-8D-13439 .25 mf x 400 volts
1
C-8D-10760 .1 mf x 400 volts
2
A -8F-13047 50 mmf, dual, mica
1
C-8G-11789 10 mmf, ceramic, 10%
1
C-8G-11891 51 mmf, ceramic, 5%
1
C -8G-13025 150 mmf, ceramic
2
C-8G-12159 30 mmf, ceramic
3
C-8G-12160 91 mmf, ceramic
2
C-8G-13026 51 mmf, ceramic
1
Resistors
A -10A-13001 Volume control (500K)
A -11A-12988
C-981,86 C9B1-94 C-9B1-83 C -9B1-68 C-981-35 (,-9B1-80 C -9B1-79 C -9B1-78 C-981-48 C -9B2-81 C -9B1-29 C-9B1-302 C -9B1-23 C -9B4.76 C-981-31 C -9B1-66 C -9B1-200 C-984-55 C -9B1-71 C -9B1-13
C -9B2-15
and switch
1
Tone control (500K) and radio -
phono switch
1
100K ohms, 1/2 watt, 10% 1
470K ohms, 1/2 watt, 10% 2
56K ohms, 1/2 watt, 10% 2
3300 ohms, 1/2 watt, 10% 2
4.7 megohms, 1/2 watt, 20% 1
33K ohms, 1/2 watt, 10% 2
27K ohms, 1/2 watt, 10% 1
22K ohms, 1/2 watt, 20% 1
68 ohms, 1/2 watt, 10%
2
39K ohms, 1 watt, 10% 2
470K ohms, 1/2 watt, 20% 3
15 megohms, 1/2 watt, 10% 1
47K ohms, 1/2 watt, 20% 1
15K ohms, 2 watts, 10% 1
1 megohm, 1/2 watt, 20% 3
2200 ohms, 1/2 watt, 10% 1
51K ohms, 1/2 watt, 5%
2
270 ohms, 2 watts, 10%
1
5600 ohms, 1/2 watt, 10% 1
1000 ohms, 1/2 watt, 20% 1
2200 ohms, i watt, 20% 2
Coils
C -13A-13009-1 C -13B-13014-1 C-203-11745-1
Input I.F. transformer, combina-
tion 455 kc. and 10.7 me 1 Output transformer, combina-
tion 455 kc. and 10.7 me 1 Ratio det. coil assembly
10.7 me
1
A -16A-13243 Loop loading coil
1
B-14MA-11066 Loop antenna-B.C. Band 1
Transformers
B -12C-13042 B -12A-13038
Output trans. for speaker 1
Power transformer, primary,
50-60 cycles, 105-125 volts,
AC
1
Speaker
B-18B-13043 Electrodynamic speaker, 12" less output transformer 1
Miscellaneous
C -30B-13943 B -30A-13734 B -5B-13738-37
B -5B-13737-37
B -2G-13596 B -14M-11479 A -3A-13003 A -2D-12983
A -43D-12934 A -55C-12935 A-2D-13004 A-47A-13801 A -46A-11739 A -15C-10717 A-158-10440 A -19B-12644 A -7B-13050 A -15B-11538 A -19B-12468 A-198-12170
Dial glass
1
Dial scale
1
Knob, small, with dot, mahog-
any
2
Knob, large, without dot, mahog-
any
2
Escutcheon
1
A.C. line cord
1
Switch shaft
1
Detent bracket (U shaped on
front of set)
1
"U" speed clip
1
Ball Bearing
1
Switch activator bracket 1
Pilot lite assembly
1
Pilot lite, 6-8 volts, T-44 2
7 prong, min., tube socket 4
8 prong, octal, socket
4
Antenna socket
1
FM dipole, 2 -screw strip 1
Speaker socket
1
Phono motor socket
1
Phono input socket
1
RECORD CHANGER
B-201-14063 P-93
Record changer (Russell C-l0)
with P-93 cartridge
1
Crustal cartridge
I
©John F. Rider
www.americanradiohistory.com
BELMONT R DIO CORP.
BELMONT PAGE 18-11 MODEL C12
_rn
u IHIn
o
m u
» J
o'
u
n
HI'
o
u
bG
©John F. Rider
www.americanradiohistory.com
PAGE 18-12 BELMONT
MODEL C12
BELMONT RADIO CORP.
ALIGNMENT PROCEDURE
(Refer to Chassis View)
Output meter across 3.2 -ohm output load. Align for maximum output. Reduce input as needed to keep output near 0.4 volts.
Volume control at maximum for all adjustments. Connect ground post of signal generator to radio chassis.
BAND
Frequency
SIGNAL GENERATOR
DummyConnection
Antenna
to Radio
Ground Connection
ADJUSTMENT Adjust for Max. Output
I.F.
455 kc
.1 mfd.
Pin 4 Grid 6SK7 Tube
Chassis
Adjust Trimmers of T3 output I.F.
LF. Broadcast
Band Broadcast
Band Broadcast
Band
455 kc 1600 kc 1400 kc 1600 kc
1 mfd 30 mmfd. 30 mmfd. 30 mmfd.
GridA6SnA#78Tube
Antenna Lead Antenna Lead Antenna Lead
Chassis Chassis Chassis Chassis
Adjust Trimmers of T2 input I.F.
Adjust Trimmers Cl-B Oscillator and Cl -A Antenna.
*Slide Antenna Coil lengthwise for max. output by means of a screw driver.
**Adjust Antenna Trimmer Cl -A to maximum output.
This adjustment
the Antenna Coll
will seldom Is adjusted
be
and
nseeacleesdsainryplIancesearvt itchee
work as factory.
TitnuhcnerienangseecseetsInstiotoyuatopf1u4tt0h0iisske.andostjieugdsntamtlheeanntdAcnaatdnejnunbseatincCghoeicClk1se-hAdo.uQldIuficabkelylaragbdey-
*justed.
/6X5
POWER
1
TRANSFORMER
If1Am6n0e0nAtetnknictnse.a.nnnToCathoeeldlCs).eoislthwoiosuladaddjjbuuessttmreedep,netaCsteld(-AAnutnsethniolnualndoTrbfieumrmtrheeearrdjCuimls-tpAerdoavnead-t
NOTE: At 1600 kc., inch from the edge of
the Oscillator Core the Coil Form.
should
extend
31/32
s
o o oó
r6K6GT
o,o
o
o o
1
G[
,---.
`
6SK7
6SA7
rOUTPUT
®I.F. (ZS)
WON
Ir.1wBB
I
45511.C.
6SAija.i
CI-sA
CONTR~Ol /SWITCH
2188
VOLUME CONTROL
PUSHBUTTONS CALL LETTER TABS
SCREW PUPSUHSBHUBTUTOTTNONLEVER.LOCKING
2187
TUNING KNOB
ON-OFF SWITCH NOTE: In some cars the dial will be mounted vertically.
However the controls will be in the same relative position.
19 ,.
BOTTOMC VIEW OF CHASSIS
e DODD
LOCKING SCREW
CHASSIS VIEW-Showing tube location, trimmers, and the pushbutton locking-screws.
6SA7
VOLTAGES MEASURED WITH A IODO OHM
(Il
PER VOLT VOLTMETER, BETWEEN'
V
0010(16KKTSTTONO CXASSS
SO rJ
O
6S07 200
UD
Ha U
0
o
VOLUME CONTROL AT YMMW AMTENI0 G1006S 0.
)) OM
0
s)0 n
OU0 s 2.1 N
poOuu1
oo
O)U
O )
6SK7
Ui
SETTING THE PUSHBUTTONS Press the first pushbutton lever in firmly and the locking screw will show up in the hole. Unscrew the locking screw
several turns to the left with a screw driver. Hold the pushbutton lever pressed in firmly and tune in the desired station. With the pushbutton lever still pressed in, tighten the pushbutton locking screw. Continue to set up the other three pushbuttons in the same manner. Replace the pushbuttons on the levers and insert the call letters. Stations may be changed whenever desired by pulling one or all of the pushbuttons off and re -setting to any desired station as outlined above.
Inn
i U V0115 WILL eE DEMONIC
ON' CAR BATTERY POLARITY.
n6X5
s2o s
u
N .It
)o e I )
0 Z30 A£
1-S.1°
) o r) iiD 0
R-' ZIO0u
0
6K6GT
s
6 t VIBRATOR 200
VOLTAGE CHART
©John F. Rider
www.americanradiohistory.com
BELMONT RADIO CORP.
BELMONT PAGE 18-13
MODEL 5C12
MOUNTING LOCATIONS
The chart below shows the mounting positions for cars back to 1939. Most cars previous to 1939 will require underdash mounting.
To use the chart, note the position letters for the required car, then refer to the small drawing for the location of the letter or letters. The word dash indicates that the radio will fit the dash, similar to a custom installation. The
following pages show the method of dash installation on cars requiring no dash panel kits.
The 1941, 1942 and 1946 Ford; the 1941, 1942 and 1946
Pontiac; and the 1942 and 1946 Mercury will take a dash
Instruction, but require panelg Instructions for mounting the
for radio and
and trim. panel kit are
ifnocrlucdoendnewcittihonesacahndpamneoltokrit,nohiosewesvueprp, rreesfseiront.o this manual
Make of Car 1946
1942
1941
1940
1939
Buick
C
C
C
C- D
C
Cadillac
B -C
Chevrolet Chrysler De Soto Dodge Ford Hudson Lincoln
Dash -C Dash
Dash Dash A *Dash
D -E
B -C - D
Dash -C
Dash Dash
Dash -A
*Dash
C -D -E
B -C -D
Dash -C Dash
Dash Dash -B *Dash -C
C -D -E
None
C -E
D -E
Dash
C
Dash-B -D C
Dash-B -D -E C
B -D
B
C -E
B - C -D
Mercury
*Dash
*Dash
*Dash
A -B -D
B
Nash
C
C
C
A- C
E
Oldsmobile
C - D -E
A -C -E
A -D -E-
***C -with Add. C
Brkt.
Packard
C -D
C -D
C -D
D -E
D -E
Plymouth
Dash
Dash
Dash
Dash-B - D C
Pontiac
*Dash -D -E *Dash -D -E *Dash-D -E C -D -E
C -D -E
i BCDE Studebaker
C
Americar
C
C
**Dash -B -D -E **Dash
*Use special dash mounting plate.
**Cut dial opening as per dimensions Americar drawing on page 4.
shown
on
Willy's
***dpPmOliaopalesdr.rthtstaemldbNoseobbtl.oryilaw1epa16t1mha79ne14ed30tpa.llwbaoTssilltthltirceatbhppree.aodsrsutAiitoiorntaanocpb,talhnhete.oorwbtrBeheeoevmalertomr,umtehnitteotaeumlrdnadutdiasunitsonghdbetesoprtsrauattnhhppeee-,l
C
C
CUSTOM DASH MTG
A UNDER DASH MTG
2180
Universal Under Dash Mounting
0
MOUNT BRACKETS TO HEAD USING THESE [UNDER IR OF DASH
CONTROL
,.3 HOLES. N7ING] 0
This view shows the battery cable, antenna and ground
cable and the two mounting brackets at the side of the
1
tuning dial which are used to mount the radio to the under-
BATTERY CABLE
lip of the dash. These brackets are packed with the kit of
(1
hardware and should be fastened to the chassis using the holes shown in solid black. They are then bolted to the
i
g luA
[-r. iáß,EHHAA
'.
4
ka
213A
]
underlip of the dash and the rear mounting strap used as
shown in the Chevrolet installation. Under Dash Mounting
must be used chart above.
on
cars
not
shown
as
Dash
Mounting in
the
[ORNECT
TO AMMETER
FUSE
ríE
CÁ
i2WIEÑRA
GROUND PIG TAIL
©John F. Rider
www.americanradiohistory.com
PAGE 18-14 BELMONT
MODEL 5C12
BELMONT RADIO CORP.
1941, 1942 and 1946 Chevrolet
FOR CHEV. MOUNTING USE HOLES MARKED
[I]
This view shows how the chassis is mounted to the dash.
The rear mounting strap (in the kit of hardware) should
be bent as shown and used to support the chassis at the
back. The two front mounting brackets should be fastened
to the chassis using the solid black holes as shown. Lay the
J®
bracket on the left hand drawing and the black circles will
show through the holes to be used. The two holes marked
No. 1 in the front brackets, as shown in the Dial View
Drawing, should be used to bolt the chassis to the dash.
FOR PONTIAC MOUNTING USE HOLES MARKED
Cz]
t o ß
s 9).
$ á$ $
WGN
IND
FOR FORD 'MOUNTING USE HOLES MARKED
[3)
O 2
MOUNT BRACKETS IQ CONTROL HEAD USING THESE 3] HOLES.
ICJ
(Dip 1J
o n
CALL LETTER TABS
VOLUME CONTROL ON-OFF SWITCH
PUSHBUTTONS
TUNING KNOB
DIAL VIEW WHEN MOUNTED
2185
REAR MOUNTING STRAP
100400000 01
INSTRUMENT PANEL
FIRE
WALL
NOTE: USE BRACKET MARKED "LEFT" ON SIDE NEAREST TO STEERING WHEEL.
"LARGE" EXTRUDED WASHER. POLISHED FLAT WASHER.
SPEAKER TO FACE DOWN
2183
NOTE, Mount Chassis as shown with the speaker face down. Be sure to use rear mounting strap.
1941 and 1942 Americar Models (Willys)
athneRoespmaemnoivenega,tshueinsipntaghneethlCefhrdeoivmmroetlnhesetioilnnessfttableslilaodtweio.onf.Mthoeundtatshhe
and cut chassis
-3.---
7.
DOTTED PORTION TO BE
INSTALLATION
RADIO
DRILL
(
I OIA.HOLE
h DRILL DIA. HOLE
FINAL CONNECTIONS
The antenna cable should be connected and the shield grounded to the car body.
Connect the battery cable to the hot side of the ammeter
behind the instrument cable receptor.
panel
and
then
insert
the
fuse
in
the
ANTENNA TRIMMER (See Chassis View)
The input circuit has been especially designed to be used with a low capacity antenna of the fish pole or whip type.
Truetone antennas are especially designed to be used with this radio.
Tune in a station on the high frequency end of the dial and adjust the antenna trimmer for maximum volume. A weak station which does not fade is best for this adjustment.
299
gJohn F. Rider
www.americanradiohistory.com
BELMONT RADIO CORP.
BELMONT PAGE 18-15
MODEL 5C12
IMPORTANT (ALL INSTALLATIONS)
Two universal mounting brackets are supplied with the
kit the
of hardware and are mounted in chassis for installation in or under
various positions on the dash of different
cars.
In all installations it is very important that the black metal
spacers the side
be of
used between the front mounting the chassis. The spacers must fit
brackets and into the holes
in the side hardware.
of
the
chassis.
They
are
packed
in
the
kit of
Be sure it holds
to draw the rear the chassis rigid.
mounting
strap
up
tight
so
that
In some antenna
installations it may be necessary to adjust trimmer before bolting the chassis to the dash.
the
Two pairs of extruded washers are bolting the chassis to the dash. Be properly in the dash mounting holes fits the holes snugly.
supplied for use when sure the washers seat and use the pair which
CONTROL HEAD
Nash Panel Mounting
1940, 1941, 1942 and 1946 Models of
Chrysler, De Soto, Dodge, Plymouth
trwbMsbsoehaerimlooarMplymcwuorkcnovenoioetunevumtnietnnsthPenmtoeiattmstuhdalhiperetebnkwfcufreilrilanhedtuotchsafsmktbtsh"atsee.shhlithhhlseaaiiotnnttoatitrddsioutn"tnndhsdgishaerinsasottghwhwocsehiuknanrapntsegswoppvs.tbleiioeistaeprhN,aksdtoeeutohtwrsftetheihigndetethdrgihiaitlbaaolltt.hlhoptoel.evttpOheeksIinernntotiiitPlcmtncihdlhaogyaealfmyb.ssclhosoaoAbiacuwsetrkhtdlsshnepwhehleoeccaodcvuaerliilreeseaads-rs.ll babuotTtvoheneswchhaleolnrilzemottnoeturasnlltyimn.guBsttehebseufrrceoantroet fu(usslehlyothrttre)imbblmraaceckdkesttpo.acfeitrsthpeicptuursehd-
POLISHED FLAT WASHER MALL" EXTRUDED WASHER
NOTE-USE BRACKET
MARKED "SHORT: INSTRUMENT
PANEL
BE SURE TO INSERT BLACK SPACER BETWEEN UNIVERSAL BRACKETS AND INTO HOLES IN THE SIDES OF CONTROL HEAD IN EVERY INSTALLATION.
SPACERS
UNIVERSAL
2181
BRACKET
A\JIL
TUMNG KNOB
ID -- PUSHBUTTONS
CALL LETTER TABS
VOLUME CONTROL ON-OFF SWITCH
2184
USE TWO MOUNTING HOLES
DIAL VIEW WHEN MOUNTED
REAR MOUNTING ST RAP
00 0 OO O O 1
TUNING KNOB
MOUNT BRACKET TO CONTOL HEAD USING THESE 3 HOLES.
ON 1941 DODGE INSERT CARDBOARD WASHERS SUPPLIED IN HARDWARE KIT
NOTE: Lay the bracket on drawing above to identify holes. when mounted will of course be at bottom of tuner.
Bracket
FIRE WALL
2182
- NOTE: Mount Chassis as shown Be sure to use Rear Mounting Strap.
©John F. Rider
www.americanradiohistory.com
PAGE 18-16 BELMONT
MODEL 5C12
BELMONT RADIO CORP.
ELIMINATING MOTOR NOISE
GENERATOR CONDENSER
A Generator Condenser must be connected in all cases from the battery terminal of the generator to the Generator frame.
This condenser must not be connected across the field winding terminal on late cars which use Automatic Cutouts.
It is advisable that you find out from your local car
dealers where the manufacturer recommends the condenser be connected for each make of car.
DISTRIBUTOR SUPPRESSOR
A Distributor Suppressor is required iñ practically all
cases, except Ford V8's where none is used. The high tension lead must be removed from the distributor head and the suppressor inserted in its place. The high tension lead is then plugged into the suppressor.
AMMETER CONDENSER A .5 Mfd. by pass condenser should be connected from
one ammeter terminal to a good ground on the instrument panel. Usually this condenser plus the generator condenser and distributor suppressor will remove all objectionable ignition noise.
ELECTRICAL ACCESSORIES
If the above procedure has not reduced the noise sufficiently, it will be necessary to continue by passing sources
of noise.
Accessories such as lighters, electric motor heaters,
horns, light switches, automatic relays, electrical gauges
such as oil, water and gas are often a source of interfer-
ence. from
In these ground to
cases the procedure is to try a condenser
various accessories until the interference is
eliminated, manently.
then install the condensers in Spark intensifiers should not
those places be used.
per-
HIGH AND LOW TENSION LEADS grhtmsSwiFheptrihogecieoeIilwrneceyhlundiiltipavdlvletrlmpeaeeudrasbarnnaynntesntutedihoftybolonhrrg.engoofeeetcrcmueTtoawewghnbruhsheishatsnirrhsiaeptdctttersihwehhccyerotkeiaehytnnbtanheodulldgassoiaptetitohwnstniroeeedumelrnpehnytohaacoepidtironutsocgrashmssiirh.teermipeocpmsatnunaaertoirrnhtttiytit.hssbemcheieauorIelltonlenotnaauhaewntrcdigrwldgayyshuihstrepfeetelarnsresuenustta.deonsioedountTsncshtoit,hihhthenoeferrenriasotntosehhicutmne.oolgt,leshlehetaVeatartdhhsurd-iseee8aef-s.
IGNITION COILS
atsbhniadeItentaiendorcsyfdatirrttussihiomdenweeaihnlnoetfsrcteprotauhnntmedheeelei.ngnsintegirnpt.iiaotninIoetnlcmoictiluoisitlstoiosbtfheteleonicncaslntoteeasdcleleessotdsnagrfrtyrohouemtnodbauthcoskeen
Short leads either on the ment, it may from the coil
are very important. Where instrument panel or in the be necessary to shield the to the distributor.
coils are mounted driver's comparthigh tension lead
Schematic
Part
Diagram
Description
No.
Reference
No. Used in Set
Schematic
Part
Diagram
Description
No.
Reference
No. Used in Set
100-26 100-87 100-13 100-20 100-9 100-126 100-25 100-31 100-81 100-82 119-105
124-187 129-161 129-2 129-188 129-21 129-12 11749B
C9 C13 C6 C7 C5
_.-_ CONDENSERS
Tubular___ .02 x 400 Volt Tubular
.01 .05
x z
600 400
Volt Volt
Tubular
.1 x .05
x202000VoVlot lTt uTbuulbaur_lar_......_....
1
1
_.-___
1
1 1
- C14
C11 C16, C12
C16, C17
A -B-C
...Ez..5005500l2e2xM3M5c5ftx1fVdrd2xo.0.o6l0lyA1Gt0V;6tmie0ocV10nlm5toeFVOlreMtaitovletfTtoladretlru.rCbTTaCCuuoyo3blonna6pun0drdlead.rV_e-._n.o._s.l_te.;.r...-..1_-26. 0.MMtdf. da.
1 1 3 1 1
350 Volt
1
Cl -A -B Ant. and Osc. Dual Trimmer
1
C8A-B
.0001 Dual Mica-10%
1
C3. C10 C2 C4
..000000508MMiciacaTTyuppee-2-10%% .0002 Mica Type-20%
2
1 1
C19
.00025 Mica Type-+20%-.__.___-._..__....._ 1
C18
Spark Plate ._
C -9B1-35 C -9B1-27 C -9B1-29 C -9B1-60 C -9B1-34 C -9B1-23 C -9B1-31 C -9B1-22 C -9B2-76 C -9B2-64 C -9B1-50 C -9B1-62 C -9B1-56
R9 R10 R31 R12 R6 R7 R1 R2 R3 R16 1113, R14 R4 R5
RESISTORS
4.7 Megohm, ys Watt -20%_-_.-..-._ 1 .
220K Ohm, yt
_- 46341311185.35770300KK0KM00KMOOeOOOgOhheOhohhgmmlmthhmmom,,mmh,,,,m,%%,i1yS1,s%yWWW2WWWyWW,aaaaaattWttatttttat---tttt11---at1t12200t--00t220%%0%-0%2%%-0%--_..0.%_._..---_%.._-.._-.._..____..-._......-._-_...__...__.._.__.._..___..._..-_.___.._.-._......_.._.--....__-.._.__.....
160 330
Ohm, Ohm,
*.4 Watt-10%_7.___. 14 Watt-10%.-_._.___.._._._
1 1
1'
1 1
2 1 1
108139B T2
108211
T3
CT-l2-1A1;-1T0l9-6B1
10566 10568
L3 LI -L2
COILS
Input I.F. Coil.....__......_...._.__.....-_..--_ 1 Output I.F. Coll.._.-_..._-..____._.__.__.__ 1
Permeability Tuning Unit Complete
Wire- with Ant. and Osc. Coila__.._.__...__ 1
"A" Choke No. 16
....__ 1
"A" Choke No. 18 Wire
...-....._..._ 2
104295
T6
B -12C-10235 T4
TRANSFORMERS
Power Transformer Output Transformer
for
Speaker-_
1 1
B -18B10236
SPEAKER
FivLeessInOcuhtpuEtleTcrtarondsfyonrammeric.__Sp-e_a-k.e_r. 1
12629
VIBRATOR UNIT Plug -In Vibrator Unit_._......_...
DIAL
A -6D-10740 D -4B-10750 1121029 128773-45 115860 128766-45 1121027 A -53A-10989 120442 1121026 A -2M-7768 107400 10797 115807 115799 120-184 117924 117311 13623
120441
ADNialDSTcUaNElRe..P.A.R.T.S......1
Escutcheon
1
SKent oobf-FSotartiTonunCinagll
aLnedttVeros_l_u_m__e._......_...._...
I 2
Shaft for Volume
Pushbuttons Pointer .._
.
Control_..__...__..........
1
4 1
String for Pointer Tension Spring for
Pointer
String__
1
Diffuser for Dial
1
Snap -in Rivet to Fasten Diffuser-_...._ 2
Socket Assembly for Pilot Lite_-._...__ 1
6P"RTU-uue8nt"suVibnrCrnogolatdSSm-LphFr-aiitWofetr.gitP-hTFuyosSphreebtuPTStut-so5ch1rner_sow..d.-_._e...__.._....._.........._...._.._._..__._.
Pinion Gear-Drives Crown Gear. ._
1
4
4 4 1
1
Drum Assembly Complete with 115800
Crown Gear
Tension Spring for Slug String_ ...
1 1
107360B 107244 131225 115713 115508 115809 115810 117929 132293 131145 131403
131397
13625
131-50
MISCELLANEOUS
AFumsem-e1t4er CAamblpe.-.Type
1
SFE..._..__.._____.._ 1
MCCCaaaosssueeenMMMtinoooguuunnnStitinitnnrgaggpBBBraBrracarackcckekkteee-ttL.t.--._e.f.it.g_.h._t__...L.....__e....f_._t_.__.___..__..
1
1 1
1
Mounting Spacer
6
No.
Flat
10-32
Steel
xW%asFhaenrc-yFoHreaAdboSvcerewSc._rew_
2 2
Extruded Washer for Chevrolet
Ex1-Pt9r4lu1yd-m4e2do-4u6Wtha-sChherryfsolrerD1o9d4g0e-4-1D-4e2S-oto 2
46
2
Complete Kit of Mounting Hardware In-
cluding Brackets, Condensers, Screws,
etc. Buzz,
Clips-for
case
10
©John F. Rider
www.americanradiohistory.com
126D6 VI
BELMONT RADIO CORP.
1ºsA7
S TI o ó
1ºBD6
T2
125v0. 7
BELMONT PAGE 18-17
TIODEL 6D130 SERIES A
36L6 -4T
C13
00 94F te/K198
a
00 1.14
RII
I
6CU 001
CIO
oti'. ''..":74". or - ..n.a..w
o
.n tlOMsew aM wn.M. .w.
'
roo6
iowo6voOrrlóYSt,1CTOCwwT'60.
ma 1156 16401 50-60 050116
35Z6 -6T
vs
wm
6616/67
ve
12836
r
25A7
Tuning range
Intermediate frequency Power consumption Sensitivity (for 0.05 watt
530 to 1650 Kc. 455 Kc.
35 Wafts
output)
40 microvolts average
Selectivity 55 Kc. broad at 1000 x signa! at 1000 Kc. Power output (in voice coil)
Undistorted Maximum Voice coil impedance
0.8 watt 1.0 watt
3.2 ohms
NOTE: On some sets slug tuned I. F.'s are used instead of trimmer tuned I. F.'s. 108-140Q and 108-145H are trimmer tuned. B -13A-12023-1 and B -13B-12022-1 are slug tuned. The slug tuned I. F:'s are tuned from the top and bottom (secondary on top, primary on bottom).
12106 12507
Rq tAW mv
G1T 1040101,
ITV
m e
10314,1
r NOTE
aollt SETS 101 SO- 00 41.t016011T144
Chassis View, showing tube locations
When trimmer tuned I. F.'s are used, R5 is 270 ohms.
ALIGNMENT
NCIoaactrthehlntohieahaitgacseessnahsnrslmciieiinmsagsd,eapbnpnoiiotwtnsnmch.sreigirtiruttbaochsaSlnuutedtlgiaitjTghbtsuchhehaslaotectutwmtnasrngaeoeedtdsmwnuijbhtnuorooesoisvsnfluteegmsmldashatdraeotaopedjnluufurdietlrgosb,dsovntlmmseimwbdcoeerefieehtndnchwaattatothvobdtuteeenirhstnmicevebtroephrteeselretweoc.emnofidslopoblravocuatitchonntnapoertgtncmreiloknatepnnhabdoeadlee.frl
PROCEDURE TCCaCarfboatsuoooeodrrnnnmriwnmnnnoeeeehoavrcccetu,iohtttnntlrptuooadtgumhuuiurntetogmepeulhdeumcncathdoaydaanm.stt0pasre.1oinottshletsemertitnsofansodcaif.amnrmocsasvtseoxiasagnilldmnldupeiaeeusdrlnitmmasiiengnnarcef.renotyshreeefrroriaaofelctmlsoaorbauwidttntphijoetuuehts.ttBcmgthre-eaannsnestsosri--s.f
Band
FSriegqnuaelncGyenSeertattionrg
ADnutmenmnya
Connection to Radio
Tuning CSoentdtienngser
(MseaexAicmdhujaumssstisOfouvrtiepwut)
I.F.
455 Kc,
0.1 mfd.
Grid of 12SA7
(plRatoetsoroufut llofopmenesh)
4 trimmers output I.F.
tornaninsfpourtmaenrds
Broadcast
1650 Kc.
0.1 mfd.
Grid of 12SA7
(plaRteostorouftullofopmenesh)
Oosncilbloattotormtrimofmraedr ioC7
1400 Kc.
None
See note A
atSe14t 00diaKlc.
AonntebnontatomtrimofmerardiCo l
Note A: Lay output lead of generator in back of loop antenna. Turn up generator output. Loop antenna will pick up energy.
©John F. Rider
www.americanradiohistory.com
TAGE 18-18 BELMONT
MODEL D130
SERIES A
BELMONT RADIO CORP.
IMPORTANT!
This receiver, unless otherwise marked, must be operated on an AC voltage of 105 to 125 volts, 50 to 60 cycles, or on a DC voltage of 105 to 125 volts. If you are in doubt as to the voltage of your power supply, consult your local power company. DO NOT INSERT THE PLUG IN THE POWER RECEPTACLE UNLESS YOU ARE SURE THAT THE CORRECT
VOLTAGE IS AVAILABLE. Receivers of this same model which are for use on voltages other than those specified above are so marked.
SETTING THE PUSHBUTTONS
'l'he pushbuttons may be used, after proper adjustment, for the automatic tuning of any six stations which you select. They can be set up in any order.
1. Turn on the radio. Allow it to warm up for at least one minute.
2. Push out the call letters of the six stations from the call-letter sheet supplied with this manual.
3. Insert one call-letter tab in the rectangular opening in each of the pushbuttons, in any sequence. Press an acetate tab (supplied in small envelope) into each of of the pushbuttons.
4. With the screwdriver supplied, check to see that the locking screw in the center of the tuning knob (see illustration) is loose. If it is not, turn it several turns to the left (counterclockwise).
5. Press the first pushbutton down all the way. With one hand hold the button down firmly and with the other carefully tune in the desired station. Release the pushbutton.
6. Follow this procedure for each of the five other buttons, adjusting each one for a different station.
7. Rotate the tuning knob on the side of the cabinet as far to the right as it will go. Tighten the locking screw in the center of the knob. IT IS IMPORTANT THAT 'MIS SCREW BE TIGHTENED VERY FIRMLY.
8. The pushbuttons are now properly set for automatic tuning. Any of the six stations may now be tuned in simply by pressing the proper button down as far as it will go. If it is desired to reset any of the buttons for a new station, loosen the locking screw in the center of the tuning knob, set the pushbutton as described above, and re -tighten the locking screw.
ANTENNA AND GROUND
The antenna (aerial) built into the rear of the cabinet is sufficient for receiving programs from strong local stations and from powerful nearby stations. This antenna may be somewhat directional, that is, reception is improved when the antenna is facing in certain directions. Therefore tune in a station and try the radio in several positions.
In locations remote from broadcasting stations or where receiving conditions are poor, an outside antenna, 50 to 75 feet long, will give best results. The antenna should be erected as high as possible, as far from surrounding objects as is practical, and at right angles to
street car lines and power lines. Connect the antenna lead-in wire to the antenna clip at the rear of the radio
Periodic inspection of the antenna is recommended to make sure that all connections are clean and tight and that the antenna is well insulated from the ground at all points.
No ground wire is required with this radio.
ao ºn y
a
mound
LOCKING SCREW
'41=1
VOLUME CONTROL L SWITCH
PUSHBUTTONS
TIMING KNOB
L Check the power at the receptacle by inserting the plug of a lamp cord and noticing whether the lamp lights. If the radio is being operated on direct current, try reversing the plug of the radio line cord.
2. If an outside antenna is being used, check all con-
nections that the
to be sure they are clean and tight. Make sure antenna is insulated from the ground at all
points.
3. Take out the tubes and have them tested. The tubes may be removed as follows: First disconnect the line cord from the power receptacle. Then remove the four buttons which hold the back of the cabinet in place. Unclip the two leads connected to the loop antenna on the inside of the back. Remove each tube by holding it near its base, rocking it back and forth, and pulling upward. WHEN REPLACING TUBES, BE SURE THAT THE TYPE NUMBER OF EACH TUBE CORRE-
SPONDS TO THE TYPE NUMBER STAMPED ON THE CHASSIS ALONGSIDE THE TUBE SOCKET.
If for any reason it is found necessary to remove the chassis, proceed as follows: Make sure the line cord is disconnected from the power receptacle. Remove the back as described above. Pull the volume knob off its shaft. Unscrew the locking screw in the center of the tuning knob and pull the tuning knob off its shaft. Remove the four chassis mounting screws from the bottom of the cabinet. Move the chassis toward the back of the cabinet so that the control shafts and tuner assembly clear the holes. The chassis can then be slipped out. After the chassis is replaced the automatic pushbuttons will probably have to be reset.
APPLYING POWER TO RADIO
Insert the line plug in the power receptacle. If no sound
is heard after direct current
one minute, and (DC), reverse the
the set plug. If
is operating on the set is oper-
ating on alternating current (AC), a low steady hum
may be noticeable after the set warms up. Reverse the
plug and notice whether or not there is any difference.
Leave the plug in the position which gives less hum.
The power consumption of this radio is 35 watts.
slightly less than that of a 40 -watt electric light bulb.
©John F. Rider
www.americanradiohistory.com
BELMONT RADIO CORP.
BELMONT PAGE 18-19
MODEL 6D130 SERIES A
Ref. No. Part No.
Description
,Zef. No. Part No.
Description
Condensers
Speaker
C-12A, C-12B A-8C-11375
or
A -8C-15030 or
A -8C-15262
C4
C9
C5 C11 C10 C13 C6, C8
Cl
C3
C -8D-10770 C -8D-10774 C -8D-11738 C -8D-10813 C -8D-10953 C-8D- 10785 C -8G-11733
C -8G-11822 C -8G-11734
Filter cond., 40 mfd., x 40 mfd., x 150 volts
Filter cond., 40 mfd., x 40 mfd., x 150 volts
Filter cond., 50 mfd., x 30 mfd., x 150 volts
.05 x 200 volts, tubular .02 x 400 volts, tubular .01 x 200 volts, tubular .05 x 400 volts, tubular A5 x 400 volts, tubular .006 x 600 volts, tubular 220 mmf., ceramic
500 mmf., ceramic 100 mmf., ceramic
Resistors
R14 R9, R11 R8 R6 R4 R13 R3 R2 R12
R1
R10 R5
C -9B2-62 C -9B1-94 C -9B1-35 C -9B1-34 C -9B1-78 C -9B1-42 C -9B1-25 C -9B1-66 C -9B1-26 C -9B1-31 C -9B1-52 C -9B1-49
or
C -9B1-55
1000 ohms, 1 watt, 10% 470K ohms, 1/2 watt, 20% 4.7 megohms, 1/2 watt, 20% 3.3 megohms, 1/2 watt, 20% 2.2K ohms, 1/2 watt, 20% 22 ohms, 1/2 watt, 10% 100K ohms, 1/2 watt, 20% 2200 ohms, 1/2 watt, 10% 150K ohm, 1/2 watt, 20% I megohm, 1/2 watt, 20% 150 ohms, 1/2 watt, 10% 82 ohms, 1/2 watt, 10%
270 ohms, 1/2 watt, 10%
114197
5 -inch, P.M. speaker
B -12C-15278 Output transformer for speaker
Dial Parts
115448 115448C 115146 115143
117528
117602
131181 117604 117600 115361 120283 115449B 112785 A -53A-10989 A -49A-11087 A-3N-11086 120143 B -6D-10241-2 112-659-1 A -2M-7758
117833
End plate (right hand bracket) End plate (left hand bracket)
Cams Key washer (13 used on cam
shaft) Brass spacer (1 used on cam
shaft) Brass spacer (4 used on cam
shaft) Spring washers for locking collar Locking collar Level shaft Lever with roller Return spring for levers Dial bracket assembly Pointer Drive cord, 6 inches used Spring on tuning shaft, for cord Spacer under above spring Take-up spring for drive cord Dial scale Crystal, clear, for dial scale Cinch buttons for fastening scale
to bracket
Brass spacer (for spacing pointer from dial)
Miscellaneous
Coils
R7
C -13E-15280 or Loop antenna assembly, complete
C -13E-15293 on back
C1 -A, C1 -B
T3
B-13D-15277 Oscillator coil
Ti
108-140Q or Input I. F. coil in can, 455 Kc.
B -13A-12023-1
T2
108-145H or Output I. F. coil .in can, 455 Kc.
B -13B-12022-1
Sockets
A-15C-15189 121171
121216 A -47A-11470
7 -prong, tube socket 8-prong socket, laminated Socket base, bakelite Pilot light socket assembly
REPLACING DIAL POINTER DRIVE CORD Six inches of cord are required in the set. Use a piece slightly longer so that knots may be tied at each end. Numbers below correspond to circléd numbers in diagram.
10798
Line cord and plug
101218 or Volume control and switch,
A -10A-10626 1 megohm
B-8A-10211 2- gang, variable condenser
107249
Pilot light bulb, type T-47
134123
Rubber bumper (bottom of cab.)
13141
Cinch buttons, to cover trimmer
holes in cabinet
B-5B-14298-8 Pushbuttons (6 used), Ivory
A-23L-11900 Station call letters, set
A-6C-14299 Acetate tabs for call letters
5C-15128-9 Cabinet, bakelite, ivory color
128-686-8
Knob, volume, ivory color
A -5B-10994-9 Knob, tuning, ivory color
A -3F-10995 120388 A -2H-10996
Locking screw for tuning knob Locking spring for tuning knob Reset key
5C-15128-36 Cabinet, walnut
128-686-37
Knob, volume, walnut
A -5B-10994-36 Knob, tuning, walnut
B -5B-14298-37 Pushbuttons, walnut
1. Rotate tuning knob to extreme clockwise position.
This closes tuning condenser. Knob should remain in
this position until installation is completed.
2. Tie cord to loop in spring as shown. Wind cord
one turn around shaft in direction shown.
DIAL
3. Pass cord over idler pulley.
DIAL
4. Pass cord over pointer shaft; wind it one turn COVER
around shaft; pass it through key washer; wind it onc
more turn around shaft.
PTOOINTER SHAFT
5. Hook spring over end of dial support. Tie cord to spring. IMPORTANT: Before tying knot stretch spring enough so that full contraction of spring will rotate pointer shaft at least one-half turn.
6. Remove dial crystal by removing Cinch buttons. 7. Make sure tuning knob is in extreme clockwise position. Then rotate pointer clockwise, against friction of shaft, until it is in horizontal position, as shown.
TeI IO1ü1i14li.9lig!
POINTER
TUNING KNOB
2059-A
©John F. Rider
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www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-1
MODELS PAR -80,
PAR -80A
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BENDIX RADIO DIV.
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-4 BENDIX MODEL PAR -80
BENDIX RADIO DIV.
Stock Number
CY0007 CMSA05 CC9A16t CT2A14 CTSA01 CT3A01 CT1A191. CMSA22t CP2T4Ot
CM6A16 CM6E64
t CP2T31
CT2A06t CT3A00t
t CP2T51
CP2T12t CM6A48 CPOM40 CP6T12+ CE3A04 CMSA14t CE1T00t CT1AI1 RC22AI24M+ RC22A4ISK RC22A333Mt RCI2A335M+ RC22A223M+ RC22A1044+ RC22A825K RC22A6112Mt RC22A473M+ RC22A474M+ RV0009 RC22A105M+ RC221,681K RC24A101M+ RW1A09 RC24A102M+ RWOD00+ RC23A6831(t TIOCO3+ TIOD04+ TA0017 LA0S00 LA0001 UOS00 106001
106SOO 1E0100 LFOA05 ALOZ17 ALOZI6 TIOW00 SPSROOt SR4F00 583100+
AD0008 811501t BT2S00t
t BT3S01
BT3S07+ BT3S08 CDONO2 CL2A01t
Symbol Number
REPLACEMENT
Description
j
ELECTRICAL COMPONENTS
(Cla,b,c)
CAPACITOR-Variable 3 Sections
(C2)
CAPACITOR-Mica 22 mmf 500V
(C3)
CAPACITOR-Ceramic 3.3 mmf
IC4a,b)
CAPACITOR-Antenna Trimmer
(C5a,b,c,d,e)
CAPACITOR-Trimmer
IC6a,b,cl
CAPACITOR-Trimmer
ICI)
CAPACITOR-Trimmer 1.6.18mmf
(CB)
(09,10,14,15,
CAPACITOR-Mica 100 mmf 500V
' CAPACITOR-Paper .05 mid -10% 30% 200Y
10,29,33) (C11) (C12) (C13,23)
t CAPACITOR-Mica 18 mmt 10% 500Y
CAPACITOR-Mica 1800 mmf -110% 500Y
CAPACITOR-Paper .01 mid -10% + 20% 200V
(C16a,b)
CAPACITOR-Trimmer
(C11a,b,c,d) (C20,22,30) (C21,251 (C24) (C26) (C28,31)
CAPACITOR-Trimmer
CAPACITOR-Paper .1 mfd -10% ,20 % 200Y
` CAPACITOR-Paper .002 mfd -10% ; 20% 200Y
CAPACITOR-Mica 390 mmf
10% 500V
CAPACITOR-Paper .05 mfd 110% 120V
CAPACITOR-Paper .002 mfd-20% '40% 600Y
(C31a,b,c)
CAPACITOR-Electrolytic (40-20 mfd) (100 mtd)
(C321
CAPACITOR-Mica 47 mmf 500V
(C34) (C361
CAPACITOR-Electrolytic 25 mfd 25 YDC CAPACITOR-Trimmer, Mica 12.160 mmf
182,181 (R3,131 (R4)
RESISTOR-Comp. 220K 1/4W
RESISTOR-Comp. 4.7 meg it10% '/4W RESISTOR-Comp. 31 1/4W
(85,19,211
RESISTOR-Comp. 3.3 meg 1/4W
(R7)
RESISTOR-Comp. 22K '/4W
188,171
RESISTOR-Comp 100K 1/4W
(891
RESISTOR-Comp. 8.2 meg 2110% ',.W
IR101
RESISTOR-Comp. 6.8K 1/4W
(811)
RESISTOR-Comp. 47K '/.W
(812,29)
RESISTOR-Comp. 470K 1W
1815) (8201
111221
RESISTOR-Pot. .5 meg 2-30% RESISTOR-Comp. 1 meg '/W RESISTOR-Contp. 680 ohms --10% 1/4W
(8241
RESISTOR-Comp. 100 ohms 1W
)R25)
RESISTOR-Wirewound 50 ohms 1W
(8261
RESISTOR-Comp. 1000 ohms 1W
(1271
RESISTOR-Wirewound 2.2K x-10 %
(8281
RESISTOR-Comp. 68K '_ 10% 'hW
(T1)
TRANSFORMER-IF 1st
1121
TRANSFORMER-IF Ind
113)
TRANSFORMER-Output
(12)
COIL-Antenna (Bdct. & Air)
(L31
COIL-SW Ant.
(1.4,5,6)
COIL-RF (Marine, Air, Bdct.)
(1.1)
COIL-SW Oscillator
(L8,9)
COIL-Oscillator IBdct. & Air)
(110)
COIL-Choke (Audio)
ILl 3)
COIL-Choke, RF 20mh
ILI)
ANTENNA-Loop AM
IL111
ANTENNA-Loop, Long Ware
(1.12)
TRAP-IF Ware
-5" SPEAKER
PM
(Si)
SWITCH-Band 4 Position, 3 Section
(S2,3)
SWITCH-Rotary 2 Pole, 3 Position
(M11 (M2) (M3) I441 (M5) (M6) IM7)
(48)
MECHANICAL COMPONENTS ASSEMBLY-Dial Back Plate BOARD-Terminal (I Lug, 1 Mtg.) BOARD-Terminal (2 Lug, 1 Mtg.) BOARD-Terminal (3 Lug, 1 Mtg.) BOARD-Terminal (3 Lug, 1 Mtg.) BOARD-Terminal 13 Lug, 1 Mtg.) CABLE-Dial CORD-Line AC
PARTS
Stock Number CSOM06t CSOM01 DSOE02 GROSOOt HBOM01t HBOM99 HCOCOOt HC00O2t HC00O3t HC0C13t HCOSOOt
t HROSOI
HSOCOOt
t HS6F01
850X091 HZOSOOt ID0M26 IMOP03 ITOCO2 ITOPOO 181003 1P8000t JRI008t 1R1SOOt MBOBOOt MP0100+ MSOT12+ PIOCOOt PIOPO4t SMOB03t SM0006 SMOT04t SOIM11 WF0100+ XSOCT6
BZOD23t BIOD28t GC0D01t GFOS00 GZ0007 HBOM61t HCOS64+ HH0503+ 11008001HN9S02 HP01404+ HPOP12 HSOC73+ HSOF14+ HSOF15+ HSOS11 NZOCOI+ HI00O2t HZOC10 010103 IMOA00 010P01 IM0PA2 1P1002+ 060800 KCOROI NE0B01 P10ß00 P10801 PZOMOI ZW6P01
LIST
Symbol Number
I49) (4101
(M11) I412) (M131 0414) (415)
14161
1411) (M18)
1M191
14201
1121 (141 (131 111) 01211
(1422) (423) (M241
I425(
114261
(4271
Description
COVER-Switch Shield
COVER-Bandswitch Shield
DIAL-Scale, Marine, Bdcr E Air
GROMMET-Rubber Shockmount
BRACKET-Variable Capacitor Mtg.
BRACKET-Coll Mtg.
CUP-Coil Mtg.
CLIP-Coil Mtg.
CLAMP-Dial Cable
CLIP -IF 2nd
CLIP-Spring (Tuning Shaft)
RIVET-Shoulder 1.111 o .118)
SPRING-Coil (Dial Cable)
SPACER-Tuning Cond. Mtg.
SPRING-Tube Retainer
STUD-Trimount (Dial Scale)
INDICATOR-Metal Dial (Pointer)
INSULATOR-Bandswitch Mtg.
INSULATOR-Paper Tube IElec Cap)
INSULATOR-Flexible Tubing (Vinylite)
JACK-Midget, Phone 1 Contact
PLUG-Bat. 8 Contact
RECEPTACLE-Line Cord Switch 1110.1
-1 RECEPTACLE
Pin Single Contact Ant.
BEARING-Brass (Tuning Shaft) PULLEY-Idler Fiber
SHAFT-Tuning
PLATE-Cap. Insulator Mtg.
PLATE-Line Cord
SHIELD-Metal Base Tube
SHIELD-Band Switch
SHIELD-Tube
SOCKET-Mtnlature, 7 Prong
WASHER-Insulating Ant. lack
INSULATOR-Shield Switch
CABINET COMPONENTS
BAFFLE-Grille
BAFFLE-Speaker Chipboard GASKET-Dial Cork GASKET-Felt Speaker GRILLE-Cloth
BRACKET -Meg. Latch T. Carry Strap CLIP-Spring Latch Pin
HOUSING-Battery Switch RING-Knob Retainer Spring NU;-Speed Mg; Grille)
GUIDE.-Top Cen(er PIN-Latch Hinge SPRING.-latch .Coil SPACER-Right, Flat Strap Assy. SPACER-Left, Flat Strap Assy. STUD-Latch Pin
LATCH-Right LATCH-Left LATCH-Top Section HANDLE-Leather
INSULATOR-Mtg. Shelf Corer
INSULATOR-Paper, Battery Switch
INSULATOR-Paper, Battery Switch
-1 'PLUG
Contact Ant.
KNOB-Control, Index (Red)
KNOB-Control (Red)
NAMEPLATE-Bendix (Brass)
PLATE-Loop Retainer (Paper)
PLATE --Ware Trap Retainer (Paper)
PANEL-Front
CABINET-
+Used on previous models
Complete assembly-see separate manual for proper code.
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
MODEL PAR -80A
Circuit Symbols
Cla, Clb, CIc
C2 C3 C4a, C4b C5a. C5b, C5c, CId, C5e C6a, C6b, C6e C7 C8 Co. C10. C14, C15, C18. C29. C33 C11 C12 C13. C23 C16a, CI6b C17a, C17b, C17c, C17d C20. C22, C30 C21. C25 C24 C26 C28, C37 C31a, C31b, C31c
C32 C34 C36
J1 J2 J3
Ll
L2 L3 L4, Lb, L6 L7 L8, L9 L10 L11 L12 L13
PI P2 P3
R2. R18 R3, R13 R4 R5, R19, R21 R7 R8, R17 R9 R10
RII
R12. R29 R15 R20 R22 R24 R25 R26 R27 R28
LS
SI S2, S3
T1 T2 T3
VI, V3 V2
V4 V5 V6
`, 1
W2
Description
T2342.-h38r5memmemm-msffefc±±tea22v00as%%erc,,tm, 6i5n02000v1sv1edcdetmewwm(,C,fc,Hemr2iain6cmca0ri0ecm3,(C9eoH-nr12at)6n'C7g5e4020c0o-2d2Cme0Am)bPafAnfdCo,rITpeOaarRtsSeocft,L2a,nt
sect front, ose (CH267007-003)
sect
rear
(NH260025-1)
5 sect trimmer: 25-270 ramf, 120-580 mmf, 2-20 mmf, 12-160 mmf, 4-40 mmf (CH260031-1)
8.1100.66s0etmcmotmmt1rf8fim-m±1m20m0e%fr%:t,r+i2m3600000%-(v6A0,d0He22wm060,0mv0mf8d,i6ec3-wa1-3,)0(pCamHpm2e6rf,7, 68(0-C03H-0120m617)m00f0-(5C0H32)60032-1)
11.220880010--110m55m00mmffmmm-1m±fm01ff±,%01e%2a05.%+-o12f.53000206%0vms0,evmdc2ctf0w,d,0c,vwn1mo0.dn0icmrcmweaipmc, la(fapC,caHe(1pCa02ebH06rl72em56(0mp7C35aHf-1r,12t586-n01o7o)8f0n20Tr)0e1-p1l0a3c)eable part of T2 ,...3.lll4210100uuu7592500bgg0-22m1mm6mm123f0mm,,.fmfm-ff42f1+m1±00f0-2+0m01±15±m40n%20f0%10mi,f0%t%0%r%fm.%+++1,i+12-,1c+--02002a2120505,50%0000v%00%0%t%0%.%rvdvi,,mc,,2-w-dd10-21c26c01,06w00w0vv0(%00m,%C,vv%ddoH,mme,eldd,wdw2ii1cccce61,5ww,2daa6005.,p.,0ev4vvpalp2epp((adca-CCdapedc4tpcpHHrcwre)éw,ower22.rlr,,,y66((77tcC(iC55(aCcHCH00n,H30H222--662i(346s7C76977007H10g0030))n0203036d--015-7,-2000204d3102)r)42y)-)1)electrolytic (CH267020-1)
Ant rec. one contact (AH266005)
CONNECTORS
Phone jack (AH274086)
Receptacle for ac/dc plug P3 (AH258020)
Best. loop ant (LH254014-2)
COILS
Ant coil includes C8 (LH259060-1)
Ant coil (L11259041-1)
Three windings. L5 and L6 Oso coil (LH259034-1)
series adding
(LH259040-1)
Oso coil (LH259039-1)
Reactor, aud, approx. 0.49 Air band loop ant (NH
by at 1000
251141-1)
eye
(CH265031)
Coil, universal Choke, 20 mh
awt in1d00in0ge. yei -f
trap (CH259068-1)
(CH259067-1)
Ant Batt
connec. plug. 8
one male -contact
contact (AH266032) (AH266037)
Two-prong plug, part of WI
CONNECTORS
220K ±20%. 1/4w (CH268500-224)
RESISTORS
4.7 meg ±10%. 1/4w (CH268504-475)
33K ±20%. 1/4w (CH2e8500-333)
3.3 meg ±20%. 1/4w (CH268500-335)
22K ±20%, 1/4w, (CH268500-223)
100K ±20%. 1/4w (CH268500-104)
8.2 meg ±10%, 1/4w (CH268504-825)
6800 ohms ±20%, 1/4w (CH268500-682)
47K ±20%, 1/4w, part of T2 (CH268500-473)
470K ±20%, 1/4w (CH268500-474)
500K ±20%. potentiometer (CH262010-1)
a1 0meoghm±s20±%10.%1./41w/4w(CH(C2H682560805-0140-56)81)
100 ohms ±20%. lw (CH268503-101)
50 ohms ±20%. lw, ww. (CH268002-500)
1000 2200 68K
ohms ohms
±±1200%%, ,
±10%, 1/2w
lw (CH268503-102) 10.9 max w, ww, (CH268004-2) (CH268506-683)
Speaker, 5". 3.2 ohm impedance voice coil (LH5S6P0E9AK2)ER
4 position, 3 sect (LH258014) Rotary switch, 3 pos. 2 pole, (CH258007-1)
SWITCHES
ORRueesstpoounntaa.tteepssriaatt1044.5605600kkcoc,,hmiinnscclluiumddeepssedCCa1n17c6aea,.
CI6b C17b, at 400
TRANSFORMERS (LH251075-2) C17c, C17d, R11 (LH251070-1) eye, seed 3.2/660 ohms impedance
at
400
eye
(CH265024-1)
1T4
VACUUM TUBES
1R5
1S5
8Q4
117Z8
AC -DC line Batt cable,
cord, includes P8 includes P2 and
(CH268910-2) J8 (CH251155-I)
CABLES
Miniature socket (OCH266091)
SOCKETS
DBCiaaabslel,e,ftoudrniaitnlugbe(sp(sCehcHiei2flyd57A3526H"22))74s0p8e8cia(lAHth2i7n41li3n7ednfoÇ(AlbHas2e7)C00A0L1-3)PARTS
Grille cloth for speaker (AH253609)
Knob, has color -filled index groove (LH269018-1)
KPonionbt,er,doteusninnogt
have index groove dial (CH270244-2)
(LH269013-2)
Shield, tube (AH274088)
Strap, Strap
carrying and latch
(CH253673-1) assem, entire
assem
including
latches.
mtg
bracket,
and carrying
strap
(CH251176-1)
©John F. Rider
PAGE 18-6 BENDIX
MODELS 110, 110W, 111,
111W, 112, 11, 115
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-7 MODELS 110, 110W, 111,
111W, 112, 114, 115
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©John F. Rider
www.americanradiohistory.com
PAGE 18-8 BENDIX-
MODELS 110, 110W, 111,
111W, 112, 111, 115
StocR
Number
Description
BENDIX RADIO DIV
Stock Nunber
Description
GENERAL MECHANICAL COMPONENTS
ADOB02 PLATE-Dial Back
BT4SO4 BOARD -Terminal (4 terminal
1 Mtg.)
4
BT4S05 BOARD Terminal (4 terminal
1 Mtg.)
CL2A06+ CORD -AC Power (Ivory)
C12A07+ CORD-A.C. Power (Brown)
HROS02+ RIVET -.118 x.218 Shoulder
HS0000+ SPRING -Coil Dial Cable
HC00O3+ CLAMP-Dial Cable
HCOS00+ CLIP Tuning Shaft Spring..
HCOS60 CLIP -1st. IF Mtg
HCOS61 SPRING -Dial Back Plate Window
HZOS08+ STUD-Trimount (Window)
IDOM14 INDICATOR-Dial
MBOBOO BEARING -Tuning Shaft
MPOI00+ PULLEY-Dial Cord Idler
MSOT00+ SHAFT -Tuning
PIOP03 PLATE-Line Cord Insulator..
SOOD00+ SOCKET-Dial Light
SO8S01+ SOCKET-Octal Tube
WPODO1 WINDOW -Dial
XS0000+ STRIP-Dial Cable Protectdr
ALOZ10 BZOD14 DSOA23 HCOSO1+ HKOR00+ HPOB02 HZOS00+ KCOLOO ZPOBO1+
CABINET COMPONENTS FOR MODEL 110 ANTENNA -Loop (L1) BAFFLE -Speaker DIAL -Scale SPRING -Baffle Retainer. RING -Control Knob Retainer PLATE -Base STUD -Trimount Dial Scale
KNOB Beige Control
CABINET-Brown Plastic
DSOA22 KCOMOO ZPOI01+
CABINET COMPONENTS FOR MODEL DIAL -Scale
KNOBMaroon Control
CABINET -Ivory
IIOW
BZOD18 DSOA25 EDOM02 HCODO7 HCOS63 HHODO1 HKOR00+ HPOB02 KCOB12 PIOBO1 ZPOB03
CABINET COMPONENTS FOR MODEL Ill BAFFLE -Cloth and Speaker DIAL -Scale ESCUTCHEON -Dial SPRING -Escutcheon Retainer CLIP Spring Baffle Retainer HOLDER -Dial & Escutcheon RING--Control Knob Retainer PLATE -Base KNOB -Control COVER -Asbesto Base Plate CABINET -Brown
DSOA30 :: OM01 ZPOIO2
CABINET COMPONENTS FOR DIAL -Scale KNOB -Maroon Control CABINET -Ivory
MODEL
II1W
IDOM17 WPODO5
CHASSIS COMPONENTS FOR MODEL 112 INDICATOR -Dial WINDOW -Dial Back
ALOZ11' BZOD21 EDOM03 HHODO2 HP0B03 KCOBO1 ZW5A01
CABINET COMPONENTS FOR MODEL 112 BACK -Loop and BAFFLE -Grille Assy. & ESCUTCHEON -Dial HOLDER -Dial & Escutcheon
PLATE -Base KNOB -Control CABINET --Wood,
CHASSIS COMPONENTS FOR MODELS 114 - 115 CP4T40+ CAPACITOR -Paper .05 mfd 400V (C15). IDOM18 INDICATOR -Dial RC1H58 RESISTOR -Comp. 470,000 ohms *W (R9). WPODO4 WINDOW -Dial Back
CABINET COMPONENTS FOR MODELS 114-I15 ALOZ12 LOOP -Back and DSOA28 DIAL -Scale GCODOO GASKET-Dial Mounting Cork GROD00+ GASKET -Dial Mounting Rubber HKOR00+ RING-Control Knob Retainer HPOB03 PLATE -Base HZOS01 STUD -Loop &.Back Mtg
KCOB13 ZPOTO1
ZCOB05
ZCOTO2
CABINET COMPONENTS FOR MODEL 114 KNOB -Control (Brown) CABINET -Plastic (Dark Brown &
Light Brown) BOTTOM & SIDE SECTIONS -(Light
Brown) TOP & SIDE SECTIONS-(Dark Brown)..
KCOI00 ZPOTOO ZCOBO4 ZCOTO1
CABINET COMPONENT!' FOR MODEL 115 KNOB -Ivory Control CABINET -Plastic (Ivory & Maroon).. BOTTOM-Front Sections (Maroon).... TOP -Sc Side Sections Ivory
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-9
MODELS 300, 300W, 301, 302
I. F FREQUENCY 455 KC.
104
bS2
* LUG CONNECTIONS ONLY
o IA
EXTERNAL ANTENNA CONNECTION
LI
1 L2
T F:% /7rCle
C5 E. 2-20
47
J
3
// 14 A7
4 /
^ C6
47
/
TI
!J C 7a 2 1407 5
7
L3
-----o-R5--
Gº Jyyy) 47K
Ir9a
I
1
9.
2
T2
3
4- 14A7
5
CI4
-wvv,¡ --- R6
220K
R9
MEGI..-
330
LOUD
T3 SPEAKER
C12
e323
.01
J
,
2 1486
35A5
T01210
5
/
--11-4MM C 13 mg. R7 .04
/
/
C2
2-20
L/ ---1__-__
/A.V.C. BUS
.1NV R3
3.3 MEG.
4.7 MEG
2 B T.óó6
3B
05
R
220
R2 22K
R4
CB
.05
1.5 K
52 3
48
G 19
0.1
0 9B
I
2 8B
7B
o
J1
98 /
.UTE ALL CAPACITANCE IN
B- COMMON BUS
WHOLE NUMBERS IN MMF. AND
2A9A ALL CAPACITANCE IN DECIMALS
IN MF. ALL RESISTANCE IN
A
IOA
OHMS UNLESS OTHERWISE
STATED.
18 2B
K = 1,000 11
4A0Qo 3A lo 0
o 8A 3B 0
4.B
6A
5S8B
R16
220K
C16 ß47 N47
IOB
98
®® .I
50-60'L B 105V-125V
78 AC.D.C.
6B
G 17
/ 05 I 48//I 8
35Y4
C 18a
40 MF
8 8
8
R 14
R15
180 1200
C18a 60 MF
C18c 20 MF
8
FRONT OF WAFER
BACK OF WAFER
LOOKING AT REAR, LOOKING AT REAR, CHASSIS INVERTED CHASSIS INVERTED
TONE PHONO SWITCH
R17
W0( 4711 SI 35Y4
W
35A5 I4A7 14A7 1407 1486
LINE VOLTAGE 117 A7 ZERO SIGNAL
CONDITIONS OF MEASUREMENTS
VOL CONT. MIN.
SOCKET
VOLTAGE RESISTANCE
TO COMMON B MINUS
D. C AT 20,00011
A CAT 1,00011/V
M C G3
70 38K
75 38K
50ACH 44
R F.
I4A7
IS
0 0
-.2 5MEG
14
K 230
39 A.0
1-I
31
CONVERTER
1407
-4 6 G 28K
G5-#-
0 G
73G2
-. 2
2,5_,G
38K G.
37MEG 38K
77 P
77
38K
9
38K
14 A.0 H
23
H235AG23.5A.CH
30
30
I.F.
14A7
ó ó Q ó N.C- S
G
325 ' K- K= _1_
DEMODULATOR 8 1486
K
I
MEG
47
AO©O
IST. AUDIO POWER OUTPUT
RECTIFIER
35A5
35Y4
D2
N.G
I09A.G H 120 CT
1I5A 130
I
95
D'4MEG 38K G2
O
*107A. .
G500K 120 0
115A.G.*
0
87 P
K5'6
P© A I I I
C.
O
1.7
330K
0
38K
160 120
Dio 38K
37A .0 I 3.5A H
H O 8354.0H
H 50A.G. I I I A.G
H 85AC.
45
0
100
59 140
100
Model 300 Brown Plastic Model 300W Ivory Plastic
©John F. Rider
www.americanradiohistory.com
Moael 301 Maple, with Mahogany finish grille
Model 302 Mahogany finish with Maple grille
PAGE 18-10 BENDIX
MODELS 300, 300W, 301, 302
EENDIX RADIO DIV.
ALIGNMENT PROCEDURE
Connect line card plug to 117 volt, 60 cycles AC power source. Set volume control at maximum clockwise position and tone control (S2) incounterclockwise position. Connect output meter across voice coil. Adjust dial pointer by turning tuning control fully counterclockwise and sliding dial pointer on dial cord to Reference Mark on dial back plate, (See Fig. 5). Make all adjustments in order given in ALIGNMENT CHART on opposite page and for maximum output. Keep input as low as possible at all times.
PRECAUTIONS
An isolating transformer should be used between the
power supply and the receiver if any of the test
equipment is AC operated. The use of isolating capacitors is not recommended as AC though the capacitor may introduce hum modulation, and if the capacitors should break down the test instruments will likely be damaged.
ALIGNMENT CHART
RECTIFIER
JI PHONO. JACK
C2 ON LOOP
IMF
.__ CONVERTER_ TUBE
\--SHIELD
T2
_
C7b
C9c
j2ND
I.F9 1
1 POWER
1
OUTPUT
SHIELD
C9b DEMODULATOR 9 IST AUDIO
C7a
R
CIb
OSC
CI
Cld
RF.
CI
e Cm
ANT,
R98S1
CONTROL
uS2
TUNING
Trimmer Location Diagram
iw
'LwZ.)
U
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m
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ul
c0
r
Circuit Aligned
IF
Input Freq.
*455 KC
OSC.
**1475 KC
Dial Pointer Position
Max. to right
1475 Ref. Mark
Adjustments
C9b, C9a, C7b, C7a
CIc
1 I
j
I
I
Dial Reference Points
**1475 KC
1475
Cle, C2
RF
**965 KC
965
+Check
**580 KC
580
Calibration
* Applied to Antenna Input through .I mfd. or less.
** Applied to Antenna input through 50 mmf. or less.
+ If dial pointer calibration is not within plus or minus 10 KC the gang rotor plates must be bent to cause correct tracking.
SPECIFICATIONS
Model 300 Series
POWER Voltage Rating, AC or DC Frequency-Cycles per second Power Consumption --Watts
105-125
50--60
30
TUNING RANGE -FREQUENCY IN KC INTERMEDIATE FREQUENCY (KC) MAXIMUM POWER OUTPUT IN WATTS LOUD SPEAKER -PM OVAL
Cone diameter -inches Voice Coil Impedance (ohms at 400 cycles)
540-1620 455
1 2
4X 6
3 2
TUBE COMPLEMENT 2 - 14A7, 1-14Q7, 1 - 14B6, 1 - 361A5, i - 35Y4 Two #47 dial lamps
Dial Cord Stringing Diagram
..«.'_/s
I 71 Fi
L, r .........
r22.I
rSl
VOLUME
RADIO BASS TREBLE
PHONO TREBLE
BASS
TUNiNG
Control Layout
©John F. Rider
www.americanradiohistory.com
Stoc k Number
BENDIX RADIODI .
Describtion
Stoc k Number
BENDIX PAGE 18-11
MODELS 300, 300W,
301, 302
Description
ELECTRICAL COMPONENTS
CC8F40 + CE3A00 +
CM5A14 + CM6A30 + CP4T20 +
CP4T31 +
CP4T34 +
CP4T38 +
CP4T40 +
CP4T51 +
CP6T16 +
CT2A06 CT3A00 CV0004 + L06B01 + RC4D14 +
CAPACITOR -Ceramic 330 mmf (C14).. CAPACITOR-Electrolytic, 40,60,
20 mfd. (C1SA,B,C) CAPACITOR -Mica 47 mmf (C5 (C6) ... CAPACITOR -Mica 220 mmf (C11) CAPACITOR -Paper .006 mfd 400V
(C10)
CAPACITOR -Paper .01 mfd 400V
(C12)
CAPACITOR -Paper .02 mfd 400V
(C15)
CAPACITOR -Paper .04 mfd 400V
(C13)
CAPACITOR -Paper .05 mfd 400V
(C3) (C8) (C17)
CAPACITOR -Paper .1 mfd 400V (C19) (C16.
CAPACITOR -Paper .004 mfd 600V
(C4)
CAPACITOR -Trimmer (C7a, b)
CAPACITORTrimmer (C9a, b)
CAPACITOR-Variable (C1) COIL-Oscillator (L3) RESISTOR -Comp. 200 ohms 2W (R14).
RC1H16 + RESISTOR -Comp. 220 ohms fw
kC1H26 + RESISTOR -Comp. 1500 ohms }.w (R4) .
RC1H40 + RESISTOR -Comp. 22,000 ohms ew
(R2)
RC1H44 + RESISTOR-Cqmp. 47,000 ohms *w
(R5)
RC1H54 + RESISTOR -Comp. 220K ohms
(R16) (R6)
RC1H58 + RESISTOR -Carbon 470K ohms. }w
(R12)
RC1H62 + RESISTOR -Comp. 1 Meg ww (R9)
RC1d68 + RESISTOR -Comp 3.3 Meg. ew (R3)
RC1H70 + RESISTOR -pomp. 4.7 Meg. ew (R7)
RC3H25. + RESISTOR -Comp. 1200 ohms lw (R15).
RV4S03
POTENTIOMETER -1 Meg. (with switch)
(R8) (S1)
RW1B28 + RESISTOR-Wirewound 150 ohms 1w
(R11)
RW2S07 SP4000
RESISTOR-Wirewound 47 ohms 2w +10% (R17)
SPEAKER- 4" x 6" P.M
SR4C00 + SWITCH-3 Pole 4 Position (S2) ...
TA0001
TRANSFORMER-output (T3)
TIOCO1 + TRANSFORMER-I.F. input (T1)
TIODO3 + TRANSFORMER-I.F. output
TR6L00 + COIL-R.F. Interstage (I2)
#47
+ LAMP -Bayonet Base
MECHANICAL COMPONENTS
AD0007
ASSEMBLY-Dial Back Plate
AL0C06 +" ANTENNA -Loop
BT1S00 + BOARD -Terminal
BT2S00 + BOARD -Terminal
BT4S01 + BOARD-Terminal
BZOROO + FOOT -Rubber
CDOC16
CABLE -Dial 48k"
GROS00 + GROMMET -Capacitor Shoc kmount ... . HBOMOO + BRACKET --Variable Capacitor ...
HCOCOO + CLIP -Coil Mtg
HC00O3 + CLAMP-Cable.. HCODOO + FASTENER -Dial (R.H )
HCODO1 + FASTENER -Dial (L. H )
HC0S00 + HCOS01 + HCOS 62 HCOT00 + HKOROO
CLIP -Spring CLIP-Baffle Spring Retainer.... CLIP--Window Spring CLIP-Tube Shield Ring CLIP-Knob Retainer
HP0B01 + PLATE Base
HROSO1 + RIVET -Shoulder HS0000 + SPRING-Dial Cord
HSr3F01 +
HZ0S08
SLEEVE -Spacer
STUD-Trimount (Dial back window mounting)
IDOM15
INDICATOR -Dial
JR1Soo + MBOBOO + MPOI00 +
RECEPTACLE -Phono (J1) BEARING-Tuning Shaft PULLEY -Dial Cord Idler
MSOT02 + PIOCOO + PIOP02 + RDOA00
SHAFT -Tuning PLATE-Filter Capacitor Mtg PLATE-Line Cord Insulating REFLECTOR -Dial (Fishpaper)
SMOTOO + SOOD11 SO8L03 WPODO2
SHIELD -Tube SOCKET -Dial Light SOCKET -Loktal Tube WINDOW -Dial Back Plate
©John F. Rider
www.americanradiohistory.com
PAGE 18-12 BENDIX
MODEL 613
BENDIX RADIO DIV.
O 2
O Oao
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S = U2 UZ
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S
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218 118
CL
U
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©John F. Rider
E L
cCie
rL.
V)
qúL:,RD C H A NG'L2 : GI Model 205, RCD.CH. 15-5
www.americanradiohistory.com
BENDIX RADIO DIV.'
BENDIX PAGE 18-13
MODEL 613
The radio chassie used in the model 613A Receiver -Phonograph combination is an AC -DC superheterodyne design, using four tubes in the radio circuit and one as a vacuum tube rectifier. The chassis will operate on DC but the record changer will operate only on 105-125 volts, 80 cycles AC. All tubes are of the miniature type.
Before making any alignment adjustments, turn the receiver and all power operated test equipment on and allow to warm up, if at all possible, for at least five minutes. Turn tuning gang fully closed and set dial pointer directly over Ref-
Model 613 Radio -Phonograph
erence Mark on dial. After receiver has warmed up and dial pointer
has been properly set, turn volume control full on and rotate tuning gang to full open (high frequency end of broadcast band) position. Connect low range of output meter across voice coil and refer to ALIGNMENT CHA.iI on Page 3 for detailed procedure to follow in making adjustments.
Signal generator to be connected to external antenna connection through an isolating capacitor as given in ALIGNMENT CHART. Keep input signal as low as practical at all times and make all adjustments for maximum output meter reading.
/TUNING
f 1I"
OSC
V C2e
RF
C2.
TO PHONO MOTOR
S2
SI
fr.OFF -TREBLE-BASS RADIO-
TONE
PFgNO
-CONTROL
SWITCH
VOLUME
PILOT ND LAMP
c
DEMODULATOR
OB I ST AUDIO
12 AT6
6°
CB° POWER OUTPUT
O IF
I
455 KC AMP
12BA6
Che
CORDSOME AC
LINE
C3
M IF TRIMMERS
ON LOOP REVERSED ON
CHASSIS
O
5055
\
RECTIFIER 35W4
JI
PHONO
JACK
PRECAUTIONS
If any test instruments used for alignment or servicing are operated from the AC power line, an
isolating transformer should be used to isolate the receiver from the power source. Isolating capacitors are not recommended as hum-modulation may be introduced into the receiver.
SPECIFICATIONS Power Requirements
105-125 volts, 80 cycles AC Power Consumption (including phonograph)
Trimmer Location Diagram
80 watts Speaker
ALIGNMENT PROCEDURE
flefer to page 1 precautions. The
for general
builtin loop
instructions
antenna must
and be
connected to the chassis during alignment or a
192 n.h. inductance substituted in place of the
loop. During alignment of the IF channel the
tuning gang should be fully open (high frequency
end of band). If calibration does not check
within the dial reference marks at 965 and 580
KCS the tuning gang rotor plates must be bent
to obtain proper tracking. This is a difficult
operation and must be attempted by experienced
technicians only.
ALIGNMENT CHART
8 inch P.M. Voice coil impedance
Ohms at 400 cycles - 3.2 Record Changer
Automatic twelve 10 -inch or ten 12 -inch
standard recorde
Dial Lamp
1 - No. C-7 dial lamp
110 volt, candelabra base
Tuning or Frequency Range 540-1620 KCS
IF Frequency
455 KCS
Tube Complement
- 1 12BE8, 1 - 12BA8, 1 - 12AT8, 1 - SOBS,
1 - 35W4
Circuit Input
Apply
Aligned Frequency Through
Adjust
Maximum Power Output 2.0 watts
IF
455 KCS .01 mfd.
C8b, C8a
C6b, Cha
9 0
Osc. Antenna
1475 KCS 1475 KCS
965 KCS 580 ICCS
60 mmf.
C2c
50 mmf.
C3
Check
50 mmfCalibration
Dial Reference Marks
©John F. Rider
www.americanradiohistory.com
PAGE 18-14 BENDIX MODEL 613
Stock Number
BENDIX RADIO DIV.
Description
Stock Number
Description
ALOZ14 * CC6A30 + CC6A34 + CC6A38 CC9A18 + CE3E02 + CE1T04 + CP4T20 + CP4T31 + CP4T34 + CP4T40 + CP4T51 + CP4T56 + CT1A18
ELECTRICAL COMPONENTS ANTENNA -Loop CAPACITOR-Ceramicon 47 mmf (C5) CAPACITOR-Ceramic on 100 mmf
(C19)
CAPACITOR -Ceramic on 220 mmf 500v (C15)
CAPACITOR -Ceramic CAPACITOR -Electrolytic 40--40-
40 mfd (C17a,b,c) CAPACITOR -Electrolytic 25 mfd
25v (C18) CAPACITOR -Paper .006 mfd 400v
(C10, ii)
CAPACITOR -Paper .01 mfd 400v (C13, C14)
CAPACITOR -Paper .02 mfd (C16) 400v
CAPACITOR -Paper .05 mfd 400v
(C7, 12)
CAPACITOR -Paper .1 mfd 400v
(C9)
CAPACITOR -Paper .2 mfd 400v
(c4)
CAPACIT.OR-Mica Trimmer (2-20) mmf (C3)
CT2A06 + CT2Al2
CV0B04 L05B04 RC3G14
RC4G24
RC1H12 +
RC1H40 +
CAPACITOR -Trimmer (C8a,C8b).... CAPACITOR -Trimmer (C8a,C8b,
C8c) CAPACITOR -Variable (C2) COLL -Osc illat or (12) RESISTOR -Comp. 150 ohms 1w
(R13)
RESISTOR -Comp. 1200 ohms 2w
(R19)
RESISTOR -Comp. 100 ohms *w
(R5)
RESISTOR -Comp. 22,000 ohms w
RC111444 +
RC1H54 +
(Ra, 8)
RESISTOR -Comp. 47,000 ohms iw
(R6)
RESISTOR-Comp. .22 meg kw
RC1H58 +
RC1H62 + RC1H68 + RC1H70 + RV00O2
RW1A04
(R2, 12)
RESISTOR -Comp. 470,000 ohms ¡re (R14, 21)
RESISTOR-Comp. 1 meg kw (R1) RESISTOR-Comp. 3.3 meg he (R4). RESISTOR-Comp. 4.7 meg kw (R11) POTENTIOMETER -500,000 (tapped
at 100K) (R7) RESISTOR-Wirewound 15 ohms lw
(R9)
RW1B28 +
SP8R01 *
TA0012
TI0008 +
TIOD14
C-7
*
RESISTOR-Wirewon.nd 160 ohms iw
(R13, 20)
SPEAKER -8" Rd. P.M TRANSFORMER -Output (T3) TRANSFORMER-I.F. Input (T1).... TRANSFORMER-I.F. Output (T2)... LAMP-Dial
BT3S08 + BT3S07
MECI*ANICAL COMPONENTS BOARD-Terminal (3 terminal)... (BOARD -Terminal (3 terminal
single mtg.)
BT4S06 + BOARD -Terminal (4 terminal) BT4S08 + BOARD-Terminal (4 terminal)...
CDOC19
CABLE -Dial 42*"
CL2A08 + CORD-A.C. Power 8 ft. Brown... GROS00 + GROMMET -Tuning Gang Shockmtg..
HBOM70
BRACKET -Speaker Mtg
HBOM71
BRACKET-Dial Light
HC00O3 r CLAMP-Dial Cable
pCQMOi + CLAMP-Dial Light
HCOM04
CLAMP -Electrolytic Mounting...
HCOS00 + CLIP -Tuning Shaft Spring
HPOB05
PLATE -Chassis Mtg
HROS02 + RIVET -Shoulder (Idler Pulley
Mtg.)
HSOCOO + SPRING-Dial Cord
HS8FO1 + SPACER-Tuning Gang Mtg.
Sleeve
IDO)419
INDICATOR -Dial
IWCiF00 + WASHER-Insulator
JR2010 RECEPTACLE -2 Contact (Phono
Power)
J U1S00 + RECEPTACLE-Phono
MBOBOO + BEARING-Shaft
MPOI00 + PULLEY-Dial Cord Idler
MSOT14 PBODO4 PIQB03 PIOPO1 + SMOTO5 SOOD12 S07M07 SR2B02
SR3E04
WPQDO8
SHAFT -Tuning PLATE-Dial Back COVER-Asbestos Mtg. Plate PLATE -Line Cord
SHIELD Tube (Chassis mounted)..
SOCKET -Dial Light (12u leads)..
SCOUT -Tube Octal Miniature....
SWITCH-Rotary Phono-Radio Double Pole - Double Throw (S1)
SWITCH -Rotary with A.C. Switch Single Pole - 3 Position
(S2)
WINDOW-Back Plate
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-15 MODEL 847-B
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©John F. Rider
RECORD CHANGERS: Farnsworth Model P56, RCD.CH. 17-1 Webster Model 50, RCD. CH. 15-1
PAGE 18-16 BENDIX
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©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-17 MODEL 847-B
FM ALIGNMENT
B - Visual Method.
Gen.Freq.
Gen. Mod.
Dummy Ant.
Generator Band SW.
Special
to
Position Conditions
Dial Setting
VTVM Conn
Oscilloscope
Adjust
Remarks
10.7 MC
Pure RF
.05
or
mfd
Amplitude
High side to Term. #3 Gang Cond. Low side to chassis
FM -Max. CCW.
Short Osc.. StatorTerm.#5 to Chassis Gnd.
Test No conn. Socket
Pins
#1 (1 & #21-) Low Scale
Ist IF
C40 2nd IF C42A, C42B
3rd IF C44A
Adjust for max imum output on low range of VTVM - Realign each Cond. several times to assure max. out -
Approx. Freq.Mod.
"
"
10.7 MC 60 Cy-
Adjust
Sweep
until
width
Ratio
Max.
Detector possible
curve
(should
is centered
be 200 KC Min)
on Horiz
Scope
Sweep
Line
No con -Connect 3rd IF nection vert. in- C445
put to Test Socket Pinsft4 & Chassis Gnd.
Signal may be fed into "test jack" in 1st IF can for Prelim. Alignment of C44A.C42A & C42B. 'Adjust for max. symmetrical "S" curve similar to Fig. 5. Alternate adjs. of C44A & C44B to obtain Max desired curve.
106 MC
"
Std. FM Ant.
FM
Terms's
fig.4 thru
dummy
"
Remove
106 MC No con-
"
short from ref.
nection
FM Osc.
**Adjust until "S" curve is
Term í#5.
mark
CII
centered on
Horiz.Sweep
scope line.
106 MC
n
"
"
97 MC
"
"
"
"
Approx. " 97 MC ref. mark
"
FM RF Adj.for Max.
Trimmer height of "S"
C5. FM pattern -"rock"
Ant.
tuning control
Trimmer at same time
C-4.
to keep "S"
curve centered
on Scope.
It
***Check Cal -
ibration
90 MC
It "
Approx.
***Check Cal -
90 MC
ibration
ref. mark
Some phase shift between the Signa Generator and the scope horizontal sweep may be encountered resulting
in a double trace pattern, shown in Fig. 6. In some Oscilloscopes, provision is made for connecting this
phase shift directly in the oscilloscope circuit. If so, rotate the "phase shift" control until the curves
coincide as in Fig. 5. If no provision is made in the scope, the connection might be accomplished by in-
serting a condenser of suitable value in series with the signal generator "Synchronized Sweep Voltage"
output. The condenser value will depend upon the amount of phase shift and the horizontal input impedance
of the scope - approximate condenser range .01 to .1 mfd. See Fig. 7 for instrument connection diagram.
See "** Page 5.
If calibration is not within tolerance at these points, the inductance of local FM oscillator coil, RF and antenna coils must be adjusted. See "**" Page 5.
NOTE: The latter operation is a very delicate and difficult procedure, and must be attempted only by technicians of considerable high frequency experience.
ER SIGNAL GENERAUge
BAT RECEIVER
V
ed
o
JACK
OSCILLOSCOPE
J
BORI SIGNAL NAL BE TAKEN ARON GENERATOR DOES BOT NASE. A E
SYR OUTPUT. °
VERT. BORI.
Il
©John F. Rider
www.americanradiohistory.com
PAGE 18-18 BENDIX MODEL 847-
BENDIX RADIO DI .
-:-wri 'O
R24 R18
IMEG
¢ 22 T yr... CIS T --733MF 1- 02
S4 O
TOR13
C39
T O R14 R 33
01 Io-i100K
TO RIT
EWE
8
T R35 2
00K
/ TEST SOCKS
C 22 001
C24
0 01
R 3
TO 54
TORE
G23
C 21
O1 =25 MF
26
1000R
R12 R29
3 3
K
óo2
-
TOR28
C 30
002
R 19
220K
PIN a
e,SQ7
TONE
0291T
TO GZ8
Values of RI5 & R33 Changed
Test Socket Connection Changed
CIRCUITS USED ON EARLY MODELS
R37 Not Used
S I
FRONT
a(J (4 +p FRONT ®
O O
O AT.
O
f ' O O O OW ®
S2
FRONT
AM OSC.
PIN *6
7H7
SWITCH
TERMa4 1ST, tF
-0 A4
TERM#3 C9-220 IST IF
a
O 0
(/ D
O
0
0
O®O
S3 CND FRONT
®R2C
MEG
C6
220
CT T3
®y
O
O?Jf-
p, U e
P33-1001<
TERM#2
IST I F.
TERM
TERM6
F
one
C 14-45MMF
S4
R15
C38 __
C36.'
'MEG.
PPH LONGO
RIB -MEG.
C39 .01
p`S 002
\i
R33 TOOK ___ R I3
2.2R MEG. O
o
' REAR
MI
'R F4
RM iF 3 iT. IF,
RM #2
O O
O
O
O
0
O O
O
a
TERM#2 'IST .IF
t_5
R34
6 8 K
T a AMOSC.
PIN # 4
7 F8
,52
REAR
0y 0
0
0
O
o
a
R5 47K
tr
R38- 0
r C 50=
0 _.
L I IFM RF)
im._e
688
T 5 FM -OSC
PB SW
S3 REAR
e
0 0
O
O
Oo O
o
o
o
o
e
PIN#6
7 F8
GND._
54 REAR
I MEG
25
p0 O
O
O
o
O
o0 o
O
e
;T. I.F.
BAND SWITCH SECTIONS
BROADCAST BAND ALIGNMENT
See Fig. for trimmer locations. I
Rotate gang condenser until full closed. Set pointer to reference mark. See
Connect output meter across voice coil on lowest scale.
Signal Generator amplitude modulated.
Rotate volume control full ON. Keep generator output low as practical,
Apply
Thru
To
Band Switch Position
Dial Setting
455 KC
.05 mfd.
Term. #2 gang
AM -mid-
Gang cond.
cond. & chassis
Position
full open
580 KC 1475 KC 580 KC 965 KC
Bendix dummy loop ADOLOO
n
"
n
Dummy loop plugged
n
in AM ant. socket
on rear of chassis
nn "
"
"
"
580 KC
n
"
* Repeat 1475 KC and following 580 KC adjustment in rotation properly aligned.
580 KC ref. mark
1475 KC ref. mark Approx. 580 KC ref. mark
Approx. 965 KC ref. mark Approx. 580 KC rpf mark several times
Fig. 3.
Adjust
IF slug, C4IB, C43A, C43B, C45A, C45B for max outºut CI3 for max. output
*C12,C10 for max. output CI3 for max. output "Rock" gang during
ust **CheckenCtalibration
'*Check Calibration
until receiver is
** If calibration does not check within IO KC, "knife" oscillator and antenna gang sections. The
latter operation must be attempted
experienced technicians only.
i
©John F. Rider
www.americanradiohistory.com
, B B S5°
.°I50'109
B 9 .* 50'
.M0`
o
o
BS 10 °BO a100 nR0 .
90 92 95 9B 102 ` 105
10B 107
O
OFF ON TREBLE BASS
VOLUME
TONE
MANUAL
O
PH
FM
AM
RANGE
0
TITNING
Controls --The various controls are shown in the above drawing. Con-
trols as arranged from left to right are: Volume control, Tone con-
trol, Pushbuttons, Range control, and Tuning control. Tone Control
rotates to the Hass position in a clockwise direction, to the Treble
position in the counterclockwise direction. The range switch is in
F.M. position at maximum 11W, broadcast position is mid -position.
and phono position is maximum clockwise.
TEST SOCKET PLUG
GENO/X STOCK
9g- ,/P 3002
VTVM SHOULD PREFERABLY HAVE AZELROOWCREANNTGERE SCALE.
TEST C/RCU/T FOR OEMOOULATOR TRANSFORMER .9L/GA/MENT
osC
ANT.
a MAN.
jTEST CIRCUIT FOR FM ALIJ3NMENT SET POINTER TO THIS MARK WITH CONDENSER GANG AT J CAPACITY ( FULLY CLOSED/
MODEL 847-B
540 650 650 900 900
925 1250 1250 1550 1550
8 Tube Phono-radio Combination SPECIFICATIONS
KGS KGS KGS KGS KGS
Pushbuttons --The adjustment position of the pushbutton assembly is shown below. Pushbutton operation is provided by rotating the band switch to the center position and depressing the desired Pushbutton.
r 580 KC AM
SS° 60°
T D i
N
R D
:I6G
f1475KC
140
AM
á
POWER Voltage Frequency Consumption
105-125 VAC 60 Cycles 100 Watts
The extreme right hand pushbutton is depressed when MANUAL tuning operation is desired.
Access to the adjustment screws is obtained by pulling the Pushbuttons off the shaft vertically. The osc. and antenna adjustment screws, with the Pushbutton frequency ranges, is shown in the above diagram.
90 MC+
FM
65 10 ' BC *' ÌGÓ ' 12b
e
97MC'
FM
965 KC
AM
-*-106 MC
FM
ALIGNMENT REFERENCE POINTS
TUNING RANGE
01 MFD
AM
540-1620 KC
HOT SIG. GEN.
TO LOOP ANTENNA CONNECTION ON SOCKET
FM
88-108 MC
INTERMEDIATE FREQUENCY AM FM
455 KC 10.7 MC
W/6
GND t
TO LOOP ANTENNA CONNECTION ON SOCKET (CHASSIS ONO./
A.M.
POWER OUTPUT Maximum
4 2 Watts
LOUDSPEAKER - PM. Cone diameter VC impedance at 400 cycle
- 10 inches 3 2 ohms
CABINET
33' high, 34-1/,2" wide, 18-3/,16" deep
Shipping Weight
95 pounds
3 TURNS TUNING SHAFT
COIL FOR 8478 IS 3.7 MICRO -HENRY
. DIMFD
300 OHM /4W
'HOT"SIDE-ANTENNA TERMINAL
SIG. GEN.
G
I/4 W
VALUE OF THIS RESISTOR TO BE ADJUSTED TO OUTPUT IMPEDANCE OF SIGNAL GENERATOR
GND. SIDE OR CHASSIS
F.M. DUMMY ANTENNA
DUMMY ANTENNA FOR 847-B
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Ill LINE VOLTAGE
A -C
BENDIX RADIO DIV.
ZERO SIGNAL INPUT
VOL. CONT MIN
CONDITIONS OF MEASUREMENTS VOLTAGE
SOCKET RESISTANCE TO COMMON
GROUND
D-C AT 20,000 11/V
A-C AT 1,000 A/V
BENDIX PAGE 18-21722 MODELS 1518, 1519, 1524, 1525
ON OFF
VOLUME TREBLE
BASS TONE
MANUAL PH
AM
fM RANGE
UN NU
©John F.
FM-R F AMP
6AG5
AC
220
0
O
K-65 2.--3010K
1.2 MEG
CONVERTER
Ill IF AMP
O
7F8
7A H7
O
K 0
IB00 O
O 63
NC NC
130
tl .. 225
P 290 K 244 K ^
G1
(j 1.2 MEG
225P
2
K
47
/ G °
22K
\ G -.5 AM22MEG
6.3AC H
0
H
O
0
FM O
2581 F AMP 7A G7
0 o G3
FM DEMODULATCR 6H6
AM -455 KC IF FREQUENCY
23K FM-107MC
A M DEMODULATOR 9
IS' AUDIO
6507
3
225 MEG))
O K
I
DZ 250 K 250 460K
10 M G
O ,S
O
H 0 0
POWER
AMP
RECTIFIER
-6V6GT
02
GI
O
470 K
NC
H-6---
5Y3 GT
275V A-C
200 b
NC NC
NG NC
?5 V Ac
82200A
275 F r
NC
245 K
NC
10
NC
270
NC
275
ZS K
F M. ANT.
rIN
CABINET
i
/
/044
45
RIB
L
I MEG
O EXTERNAL ANTENNA
EXTERNAL GROUND
L'
AM
LOOP
NOTES ALL CAPACITANCE IN WHOLE
NOS. IN MMF-THOSE IN DEC. NOS. IN MF. -ALL RESISTANCE
IN OHMS UNLESS OTHERWISE STATED. K=1000/1
2G-S20'
I
4M
pp 3-12
/
r,
I
B2 FM
R4 6800
ó7 FM,86
AM B
1,peBI
PHON01
FM
OOSC
I I
C 40 AS
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l
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1
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:II (528
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- 5.6 '0..
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1600
89
87
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680
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R2 PHONCSIAO
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- AM
-.8 K-1 -
i 1 = T220
¡
11
R
123
220Tj;17A72dscbg7.-.0L
R II
PART OF TRIMMER
IK
ASSEMBLY
\--
I. A4Sb : T bói^100^58
47K
IOOI
R41 TM
BK11
057 (
+100
1
0 I
C41 O
1
g 0440
I
1
FM
42b4 C42' Q20
r 20
--- ``-- J I:
7A H7 4
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T .5V.
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4
C4 120
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6
16V 7
C19
RIO
.05
220
20
r5.6 6.
1 _C59
I
20v- 5zbv
6H6
TEST SOCKET
3
35 r1003050.8
R17 100 K
_
ééó
^000241
G22
023 ,00
R12 I R29 33 KI 22 K
= R 13 2.2 MEG.
031 3 MF
3
220
- -
+261V121oV.
R37 IOOK
iC49 05
/firTE
MANUAL /
(S7)
ñ
/
/
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/ /
C10 / G12 /
TG6 1
- - - *a-75 G1ó 479rC1a 470 1 1125
t600
KC
I
,JI C
t
PHON00 (SIA)
r , F M O
0.-0- I AM
SAND I SWITCH
PHONO.O
POSITIONS
_1
B
. `*
f+A
.fts. 1.t
900- 650
500 1250
KC
KC
650 1250
KC
540925
KC
275 V. AC
("275VAC4
P3 K47
EO a
Ó
It
t A
.0
- C 32 20 MF 40 MF 20 MF
R 21
100 K
035
.002
-
TONE
T
6S07 C09 1
I00V 6
1
R 19
220 K
C 31
006 C27 006
245V
10 MEG
R 25 270
NOTE:
Models 1518 and 1519 chassis
are identical to this
schematic except that Hush-
0-Matic circuit (tubes 6BA6
and 6AQ6) is not used.
6.3 AC
6.3 AC 0
6BA6 +90
6A06
6.340 6.3 AC
0 1.93
60 MEG.
1.2
0
0 3.IMEG
130 420 K
NOTE - ALL READINGS WITH HUSH-O-MATIC SWITCH ON.
P3 J3
R115 IOOK
iCI10
68
R103
220K
0108 .0S
6" R100
150K
(.0CfI100
C10I
002
7 6A06
J8REIAER WPen\
8LI BLK
R101
50K
R102' IOM
i 1
4
G107 Iww
C6B2
R104 6800
0109
5
R106
1.0 M
C104 0105 006 47MMF
8112 IOM
R109 470K
P7
R36 470K
Control Layout
Models 1524 & 1525
oOFF ON
H SH -0 MA:':
SPECIFICATIONS
POWER
Voltage Frequency Power Consumption
TUNING RANGE
FM
SIA
S2A
BOTTOM OF CHASSIS
`S3A
Al2
A2
All
S4A
00 Al
42
412 All
A10 43 49 44
A10
A4
A9
" c
1-, A9
AB
A5
A5
AB
AB
A7
A6
A7
SWITCH
SHOWN IN COUNTER -CLOCKWISE POSITION VIEWED END. FRONT OR "A'SECTIONS VIEWED FROM FRONT
FROM CONTROL OF SWITCH
KNOB
105-125V AC
60 Cycles
INTERMEDIATE FREQUENCY
95 Watts
AM
FM
455 IC
10.7 MC
540-1620 KC 88-108 MC
POWER OUTPUT
Maximum
4 2 Watts
8 S I
S20
812
BI
R105
13
C103
006
811 .
B2
810
RI I 22K
S 89
BB
0
67
Y 89
87
B6
HUSH-O-MATIC
CHASSIS
-
J
REAR OR "B" SECTIONS VIEWED FROM REAR OF SWITCH
SECTIONS NUMBERED FRONT TO REAR SW
- LOUDSPEAKER PM
Cone diameter
12 inches
VC impedance at 400 cycles
3 2 ohms
CABINET
3411 high, 3111 wide, 17-1/411 deep
Rider
RECORD ORANGER: Webster Model 50, RCD.C_.
l5-1
BENDIX RADIO DIV.
BENDIX PAGE 18-23
MODELS 151 1 19
1524, 1525
Models 1518 & 1524 Mahogany Models 1519 & 1525 Walnut
GENERAL
partrc1damimeuhand6eiodbuofdd2idmfdenvu0Tieieoo1ecthrlai5E-tse-e(oii1Cp.lpnotn9nl)hBlhcnupTaoeeesanuahlnnncnoteovddSbidsimagiersetcxctrcateuiwtaihnnuhturpewmeidemcoiheatoaournt1ti8rduuci5gdd8letrot2baieleh4msenst-eAueiarbMtgas1rteu1icenni5nc0bnddBhe1am8tegda8tris1iosioMfon5sdaiatfßn2ieernoidso5snltdrFschm)Mraeumeda1issdsne5Bnoteuu1ds1dcedapci5y9eoenBgele2nddrsinar4aaph.lhnemertoieddoeaT-stritnshceahdcreetsta(ioeonr5enda1m4voo1yt50t5eirtnwicshn21ennleh5yoee8----
or from old and worn records. This circuit
functions only on phonograph operation and is
completely out of the radio circuit.
Msttctcbhhhiohanaeeena*tsciTtscieacfHshcoiieiacnursutlcishsllsrhuiyicc-ssaiOhumtleit-cbolthMmuiedartscieaahcetnolttdeusigincc.oititacfcnfIidionefrmiinmeacasodsgeutodiuridiideatwdrtehelmselseisre,tenhrfsd11toihtin55uhoct12tnhweah84tdehlneleaaonyninn1inddned5ttho1ha18Fsete1nt5c5iey1hgoH2ds9e.a5rou,mm,nls3e1iehpan5-bltOeu1iaouics9sssf-t
at
be
the lower. right hand corner disregarded, together with
of Fig. 3 should the power cord
and jack J8 connected to the main chassis.
BCDEa OSC
A
ANT a ® O® O® O®
MAN.
540 650 650 900 900 925 250 250 1550 550
KCS KCS KCS KCS KCS
Pushbutton Frequencies
PUSHBUTTON ADJUSTMENT
1. 2.
bpsTPSmimRsytuhetlraamaeasannpnbchoiuuupevedgbaeaustauhlwhllsrtlytthabdtyehobuel.eolnuuntBntptoSettrrohne5mofeenre4soaucos0fdsmeFtapcitmanaiuhvnbgdtasseheedy.therwbbsB9d9huet)2poaaeit5nntsatpaoedinrdonKeeojsncsCulp(.assSAsbe.erMtyerdrt)oidaeptwar(iubnaTohelsdhenflneirfsnetoeuqgoMtllnuunleAoenectNwhnittUnehecAsimgdyen:L
6. Rbbisiuenptetemodantarask"dtAeejd"pu.ssAtTmN4hTeiasnnitndssc.r5Fewitgo.tuon9be.tsainthetheanbteenstnacoamnd-
7. 8. 9.
ptRcrSfiPeesshihnanoraaxtteexugenoaavlplclsalgeteltttlehoheaciiepccpoobcwectlrtbtauleennoteayeoltptetfsstldtrhrtonisceohedtneargamhleerttlstiielauesevnlabtotntp.ceBhthtafetutslnee,eeideeatsnrhdCmpnhtcsiet,srbaateanetoinenuDmalordvperlt,bsmFuntituossdiicliastagtnnenenhonatb.dsbgonstdbwertyeeruew9aorhErittnr.rtetthithiehcortmaeethehnttsthahaiosfyelnbrrt.opscohesbabcuuqaeremtTeehasuglheechtelephepnaiebnloucdpaiccustllnsvjrchoyepeuhtoeeetslebstcodroletctoueunfdesefidtgldlfotoruotoiittv"hesvihhrntAedieeds.ee-sn:"
3.
Depress increase
the shank the volume
for pushbutton slightly.
"A"
and
4.
sUisriendg
screw
astasmtioalnl
located
screwdriver, by adjusting
tune the
in the delong brass
above pushbutton "A". It can
bascefrteerwreatchahededpjuutsshhtrsbouuttghtohenstohhesacvoeilplebanetieonngr
in the panel
recmooivleda.ndThiiss
5. cWsfamcoedrairretjrhtwukatesihdpntaeuds"tthjhOMhueeSbAsCNuct"eUtsotAdcorLirrnneefwpoc"FurtAis"glhmso.btacaaxugai9ttmatit.eooiundmnnNowhdasjanueisgdppsnrrbteecaeshselbss,eneecldkttsouhiwmneatenoiddpslahumarsiOanlhnSky.Ck-e
Dial Stringing Diagram
©John F. Rider
PAGE 18-24 BENDIX
BENDIX RADIO DIV.
TUNING
BAND SWITCH PHONO AM -FM
PUSH BUTTONS
:,!I
FM
40
TEST SOCKET
TONE
SOFF -ON VOLUME
AM -455 KG IF
FM-IO .7 MC IF
FM SIGNAL TEST HOLE
C 13 e OSC CONV
FM DETECTOR
GIG I.F FM INPUT
I AM INPUT
C la.
3RD IF
DEMODULATOR 1ST AUDIO
MUSH-O-MATIC OFF -ON CONTROL
LhUBOENTROLLED AMP RECT
iteAV-PLPOUWGER
TO PHONO JACK ON RECEIVER CHASSIS.
pHON0 PICKUP
JACK
AM ANT. TRIMMER CIO
2ND IF OUTPUT RECT.
FM ANT
AM ANT
PHONO INPUT
Trimmer Location Diagram
SPEAKER JACK
AC LINE CORD
TEST SOCKET PL UG
BEND/X STOCK
P 3002
VTVM SHOULD PAZRELEROFOWERCRAEABNNLTYEGREHAVE SCALE.
TO LOOP ANTENNA CONNECTION ON SOCKET
TO LOOP ANTENNA CONNECTION 3H SOCKET (CHASSIS GNn(
AM DUMMY Antenna Bendix Part No. ADOLO1
W
U Z
>wWa
v Y o
W
-CC
C'nOoO)
1
fU Y 41-)
- _ Nm- Wm
U
2
-(OD
ti
v
_
Alignment Reference Marks
HOT
.01 MFD
SIG. GEN.
300 OHM I/4w HOT SIDE -ANTENNA TERMINAL
OF 30 I/4 w
VALUE OF THIS RESISTOR TO BE ADJUSTED TO OUTPUT IMPEDANCE
SIGNAL GENERATOR
IA CND. SIDE OR CHASSIS
FM DUMMY Antenna
©John F. Rider
BENDIX PAGE 18-25
BENDIX RADIO DIV.
ICDELS 151: , 1519, 152L, 1525
The chassis must be removed from the cabinet in order to align the FM channels. If only the AM channels are to be aligned this is not necessary but will be found to be much more convenient if it is removed. However, if the chassis is removed a dummy antenna, described in detail later in the text, must be used when aligning the antenna circuits, unless these circuits are adjusted after the chassis is again installed in the cabinet.
Unless the various circuits of each
channel are much out of alignment, adjust-
ments made on the FM circuits will not
appreciably affect the adjustments previously made on the AM circuits. However, if the FM circuits are badly out of alignment, necessitating considerable adjustment, it is best after these adjustments have been made, to go back and check the
AM alignment. An amplitude modulated (AM) signal of
the proper frequency may be used for aligning both the AM and FM channels. However -
if convenient, an oscilloscope and frequency -modulated signal may be used for
aligning the FM channel. Before making any adjustments, turn
"on" the receiver and all AC operated test equipment and allow to warm up for at
least five minutes. IMPORTANT: All adjust-
ments must be made in the order in which
they are given; i.e., the AM band must be
completely aligned before aligning the FM band. The manual push-button must be pressed
before the AM oscillator and RF circuits
can be aligned.
EQUIPMENT REQUIRED
Signal Generator AM, 455 KC to 106 MC
Vacuum Tube Voltmeter DC ranges up to approximately 20 Volts.
Ground, or minus, lead must be isolated from the power line.
Low Range Output Meter
Capac it ors
One .01 mfd. and one 50 mmf. Dummy Antennas
FM Dummy Antenna (See Fig. 8) AM Dummy Antenna, Bendix Part No. ADOL01,
(See Fig. 7) .
Test. Circuit Plug'
See Fig. 5 and text for details.
Alignment Screwdrivers Must be 100% non-metallic.
Tuning Wand
May be made from a 1/4" x 9" polystyrene rod with a small brass slug attached to one end and a powdered iron core attached to the other end. Miscellaneous Hand Tools
AM ALIGNMENT
After the set has warmed up proceed with the
alignment in steps as follows:
1. Rotate gang condenser all the way closed
and set dial pointer to reference mark.
2.
See Fig.
Short AM
6o. scillator
terminal
#4
to
chassis. (Cle).
3. Rotate band switch to AM - midposition and press manual push-button.
4. Rotate volume control full on (Clock-
wise) .
5. Set output meter on low range and con-
nect across voice coil.
6. Signal generator adjusted to 455 kc AM.
7. Connect 455 KC signal to terminal #2 (7F8 grid input) through a .01 mfd. capacitor, generator shield lead to
receiver chassis and ground. See Fig.
4 for diagram.
8. Align IF AM slug, (center of T6) C41B,
C43A, C43B, C45A and C45B for maximum
reading on output meter. Keep generator
output as low as practical. Refer to
Fig. 4 for trimmer location diagram. 9. Rotate tuning control until pointer is
10.
at Set
59g0eKnCerraetfoerrentoce
mark. 580 KC,
amplitude
modulated.
11. Connect signal generator through AM
Dummy Antenna to AM antenna terminal,
12. Remove short from gang terminal #4 to
chassis.
13. Adjust oscillator padder C13 for max-
imum output.
14. Turn dial pointer to 1475 KC reference
mark.
15. Set Signal Generator at 1475 KC amplitude
modulated.
16. Adjust oscillator trimmer C12 and antenna
trimmer C10 for maximum output.
17. 18.
Turn pointer to
Set generator
580 KC reference mark.
at 580 KC amplitude
modulated.
19. Again adjust oscillator padder C13 to
maximum, at same time "rock" gang
condenser to obtain maximum output.
20.
Repeat times,
steps until
it13
through 19 is apparent
several receiver
is properly aligned.
21. Check calibration at 965 KC and 580 KC
reference points.
22. If 965 and 580 calibration do not check
within 10 KC, oscillator and antenna
sections of gang condenser must be bent
to obtain proper tracking.
CAUTION: This last operation must be
attempted by experienced tech-
nic ians only.
©John F. Rider
www.americanradiohistory.com
PAGE 18-26 BENDIX
MODELS 1 li, 1 19,
BENDIX RADIO DIV.
1524, 55FM ALIGNMENT
1.
Preliminary: a. Rotate gang
condenser
until
fully
closed. Set pointer to Reference
Mark. b. Rotate band selector to FM band -
c. MShaxoimrtumstcaotuonrterFcMlocokswciislelaptoorsitgioanng.
(CIA.) to chassis - #5 terminal.
I.F. ALIGNMENT
2. Adjust Signal Generator to 10.7 mc,
e ither CW or AM.
3. Connect generator output lead through
.01 Mfd. capacitor to terminal #3
(C1c) of tuning gang.
4. Connect D.C. Vacuum Tube Voltmeter to
test socket pins #1 (+) and #2 (-) using low scale.
5. Align 1st, 2nd and 3rd IF trimmers fo maximum AVC voltage, C40 on 1st IF,
C42A and C42B on 2nd, C44A on 3rd.
Reduce signal generator output as
alignment proceeds, such that reason-
able reading is obtained on low scale
of D.C. VTVM. If no indication is obtained with maximum signal applied, apply signalto test jack in 1st IF can
and tune C42A, C42B, and C44Atoapprox-
imate peak before moving generator lead
to #3 terminal.
Realign IF trimmers (C40, C42A, C42B,
and C44A) carefully several times for
absolute maximum AVC voltage. 6. Insert test circuit plug in test socket
and reconnect DC VTVM between center tap
of shunt test resistors and test socket
pin #4. See Fig. 5 for details.
7. Remove IF Signal input from receiver. 8. Set DC VTVM to zero reading.
9. Inject 10.7 MC signal to terminal #3,
as in Step 3.
10. Adjust secondary of 3rd IF, C44B, to absolute zero reading on VTVM.
11.
Alternate 10 several
adjustments
times until
in steps 5 and correct adjust-
ment is obtained.
a. Correct adjustment is obtained when
Step 5 produces no increase in AVC
reading, and
reading.
Step lO remains
at
zero
12. Remove short from terminal #5 to chassis.
R.F. AND OSCILLATOR ALIGNMENT
13. Reconnect VTVMtotest socket terminals
#1 (+) and #2 (-) .
14. Adjust signal generator to 106 MC either CW or AM.
15. Connect generator output to receiver FM antenna posts through standard FM dummy antenna. See Fig. 8.
16. Set dial pointer to 106 MC reference mark - Fig. 6.
17 Adjust FM oscillator C11, RF - C5 and Ant. - C4 to maximum AVC reading,
a. Tuning control must be "rocked"
while adjusting C5 and C4 due to
reaction on Cll.
b. The oscillator circuit has been de-
signed to operate on the high freq-
uency side of the incoming signal.
It is possible to adjust the trimmer
(C11) at 106 MC such that the oscillator is operating on the "image"
or low frequency side of the signal.
To check the oscillator (CIA) adjust-
ment, set signal AM, dial pointer
gsetnielrlataotr
to 84.8
108 MC.
If signal is NOT heard, adjustment
of C11 is correct, but if signal IS
heard, oscillator trimmer C11 has
been incorrectly set on the "image"
frequency. Readjust C11 to other
setting at 108 MC and recheck with
generator at 84.6 MC. SIGNAL MUST
NOT be heard with pointer at 106
MC, and signal generator set at
84.6 MC.
18. Check calibration at 97 MC and 90 MC.
a. If calibration is not within reason-
able tolerance at these points, the
inductance of the FM oscillator coil
must be adjusted. If dial pointer
reading is on low frequency side,
inductance of oscillator coil is
too low and turns must be compressed
slightly. If pointer reading is on
high frequencyside, oscillator coil
inductance is too high and coil turns
must be spread
Steps 17 and
slightly.
18 until
Alternate
correct
calibration is obtained.
19. Check and adjust inductance of RF coil.
a. Tune receiver to 90 MC signal.
Observe AVC reading. Insert iron
core end of "tuning wand" into RF
coil, at same time rocking tuning
control to maximum reading. If
reading increases as wand is in-
serted, RF coil inductance is too
low and turns must be compressed
slightly. If reading decreases, re-
verse wand and insert brass end into
coil, again rocking gang to maximum
reading. If reading increases, in-
ductance is too high and turns must
be separated slightly. If reading
decreases (after iron core check)
inductance is properly adjusted.
20. Canhteecnknaancdoila. djust inductance of
a. Use exactly same procedure on
antenna coil as in Step 19.
NOTE: Operations 18, 19 and 20 are very
difficult and should be attempted
only by. technicians having had con-
siderable high frequency experience.
* A round rod of insulating material,
approximately 8" in length, with an iron
cmoreetasllluicg osnluogne onendth, eandopaponsointe-ferernodu.s
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-27
MODELS 1518, 1519, 1524, 1525
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PAGE 18-28 BENDIX
MODEL 1521
BENDIX RADIO DIV.
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BENDIX RADIO DIV.
BENDIX PAGE 18-29130' MODEL 1521
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BENDIX RADIO DIV.
BENDIX PAGE 18-31
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Main Chassis Component Diagram Bottom View
M 24
C40
T2
PAGE 18-32 BENDIX MODEL 1521
BENDIX RADIO DIV.
CI I
' O
C12
O
C 5
C4 ....ÿ0`
I g' M32 TUNING
M12
M29
am akaintea 2,M1
S, 1,2,3,4
BAND SWITCH
PHONO AM -FM
M27
AM C64
I. F. AM SLUG
IST IF
;J6
TEST SOCKET
TONE
OFF -ON VOLUME
OK
M9 AM-455KC IF R16
FM -10.7 MC IF
FM DETECTOR
*5 FM OSC. AM OSC PADDER
OSC CON .
i
id j OSC. GONV
M35
I.MF L 3615I #3
FM INPUT
Cmluc-
CID RF\J
Ah-1
h#4
M 7
ISF.
T7
2ND. IF
T8
3RD IF
I I #2 Glib -4
I NPUT
AMP FM
2ND IF OUTPUT
DEMODULATOR IST AUDIO
ECT.
..4:M II \M14
G
IO AM rah-.
ANT TRIMMER
r ,M34
AMee
C
® C61A
FMe C'IB
elm C63A
e AM C1638
B e C62A
e FM
I
C 26
M25
J2 FM ANT
JI / AM ANT
J7 PHONO INPUT
J5 SPEAKER
JACK
Trimmer Location Diagran
33
M AC (1
LINE CORD M 10
CIRCUIT CHANGES Some sets of this model, capacitor CT1A09 (C11) has been replaced by two capacitors CT2A14 (C11) and CC5A22 (C50). The FM oscillator is changed as shown
\-\C_ I
I RI C3
RS-. 7/IY,
11
OM/ eh
(.
R4 R34
C8
C14
Ali A,C6 R2
1
3
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©John F. Rider
TO PIN6 7AH7
TO PIN I 7AH7
RF Chassis Component Diagram Bottom View
175
S2A Circuit using li - 1.3 nimf for C11
©John F. Rider
7.5
S2A
Circuit using 10 mmf in
parallel with .3 - G mmf Cil.
BENDIX RADIO DIV.
BENDIX PAGE 18-33
MODEL 1521
ALIGNMENT PROCEDURE
Remove chassis from cabinet and, if possible, have a speaker connected while alignment procedure is carried out. By using an amplitude modulated (30% ) test signal whenever possible, weak signals in a detuned receiver may readily be identified. Plug the line' cord into 117 volts, 60 cycle A.C. power source and turn the set on. Allow the set and test equipment to "warm up" for five minutes before beginning alignment procedures.
The AM channel is aligned first since the FM alignment will be, affected if the AM section is not tuned properly. Refer to Figs. 3, 8, 9, 10 and 11 for trimmer locations, dial reference points., etc.
TEST EQUIPMENT REQUIRED
Standard AM Signal Generator
FM Signal mately
Bendix AM FM Dummy
Generator with range 108 MC. (For visual Dummy Antenna (See Antenna (See Fig. 9)
to approxialignment.) Fig. 3)
.01 mfd Capacitor
Alignment Screwdriver
Special Test Circuit Plug Standard Output Meter
(See
Fig.
11)
Vacuum Tube Voltmeter zero center scale.
-
Preferable
with
a
-H---1ON a.
Minus or "ground" lead lated from power line.
must
be
iso-
01 MED
HOT
TO LOOP_A_NTENNA CONNECTION
SIG. GEN.
7.2 Micro-henrys
To set dial pointer, rotate gang condenser GND until fully closed and set pointer to reference
mark at left of scale. See Fig. 10.
TO LOOP ANTENNA CONNECTION ON SOCKET (CHASSIS GNU)
A M Dummy Antenna
Bendix No. ADOLO1
AM ALIGNMENT
PRELIMINARY: Connect the output meter across voice coil. Set meter on lowest A C Range. Signal Generator Amplitude Modulated (Approx. 30r/, modulation) Rotate Volume Control -full on. Keep Generator output low as possible.
Generator Dummy
Freq.
Antenna
455 KC .05 mfd 1)
580 KC 2)
Bendix Dummy Antenna
ADOLO1
Generator Coupling
High Side-
Term. #2
oLfowgaSngidCeo-nd.
Chassis Gnd.
Band
Special
Position Conditions
AM-MidPosition
SOhsocr.t-AM
Term. #4
to Chassis
Dummy Antenna AM-Mid- Remove
Plugged in AM Position short from
Ant. Socket on
Term. #4
Rear of Chassis
See Fig. 8
Dial Setting Gang Closed
Adjust
Remarks
IF Slug; Adjust for Max. Output
C64A, C60A, C60B, C63A, C63B.
580 KC
AM Ose.
Ref. Mark Padder
C13
1475 KC 3)
580 KC 4) 5)
965 KC 6)
580 KC 7)
1475 KC
Ref. Mark
AM Ose.
Trimmer
C12,
AM Ant. Trimmer
C10
it
580 KC
C13
Ref. Mark
REPEAT STEPS 3 & 4 UNTIL RECFIVER IS PROPERLY ALIGNED
Bendix Dummy Antenna
ADOLO1
Dummy Antenna AM-MidPlugged in AM Position
Ant. Socket on Rear of Chassis, See Fig. 8
965 KC
Ref. Mark
(i
CC
ti
580 KC
Ref. Mark
Rock Gang Cond. Adjust for Max. Output *Check Calibration Check Calibration
*If calibration is not within 10 KC in steps 6 & 7, oscillator & antenna gang rotor sections must be bent. This operation should be attempted by experienced technicians only.
11
©John F. Rider
www.americanradiohistory.com
PAGE 18-34 BENDIX
MODEL 1521
BENDIX RADIO DIV.
FM ALIGNMENT
CW METER METHOD
BE CERTAIN "AM" CHANNEL IS ALIGNED BEFORE BEGINNING "FM"
ALIGNMENT.
The CW Meter Method has proved to be very satisfactory for aligning the FM section of a correctly operating Bendix Model 1521 receiver. The advantage of this method over the Visual
Alignment procedure is that the equipment
required is generally associated with AM receiver alignment. A check by use of the Visual method will reveal any distortion in the output, which is difficult to locate using only the CW Meter Method.
1. Preliminary a. Rotate band selector to FM band - Max. counter -clockwise b. Short stator of FM oscillator gang to
chassis - #5 terminal. See Fig. 8.
2. Signal Generator Setting a. Power "ON" b. Frequency - 10.7 MC c. Modulation - pure RF or, preferably, amplitude modulated.
3. Connect generator lead through .01 mfd
capacitor to terminal #3 (Chi) of gang
condenser.
4.
tCeostnnsoecctkeDt CpinVs a#c1uum(+)Tuabned
Voltmeter to
#2 (-) using
low scale.
5. Align 1st, 2nd, and 3rd IF trimmers for
maximum AVC voltage - C64B on ist IF,
C61A and C61B on 2nd, C62A on 3rd. As
alignment proceeds, reduce signal genera-
tor output, such that reasonable reading is
obtained on lowest scale of DC vacuum
tube voltmeter. If no indication is obtained
with maximum signal applied, apply signal
to test jack in 1st IF can and tune C61A,
C61B, and C62A to approximate peak be-
fore moving Realign all
generator lead IF trimmers
to #3 terminal.
(C64B, C61A,
C61B, and C62A) carefully several time
for absolute maximum AVC voltage.
6. Insert test circuit plug in test socket and connect DC Vacuum Tube Voltmeter between center tap of shunt test resistors and test socket pin #4. See Sketch, Fig. 11.
7. Remove IF signal input from receiver. (Vacuum Tube Voltmeter remains connected to test socket and receiver is still
"ON".)
8. Adjust DC Vacuum Tube Voltmeter to zero reading under conditions stated in Step 7.
9. Re -connect Signal Generator to terminal
#3 as in Step 2, using the same 10.7 MC
signal.
10. Adjust secondary of 3rd IF (C62B) to absolute zero reading on Vacuum Tube Voltmeter. (Same "zero reading" as in
Step 8.)
11. Alternate adjustments in Steps 5 and 10 several times until correct adjustment is obtained. a. Correct adjustment is obtained when Step 5 produces no increase in AVC reading, and Step 10 remains at zero reading. (Note: When changing from Step 5 to Step 10, Vacuum Tube Voltmeter is adjusted for zero with Signal Generator output removed from chassis. Do not remove Vacuum .Tube 'Voltmeter leads from chassis and adjust for zero.)
12. Remove short from terminal #5 to chassis.
13. Reconnect Vacuum Tube Voltmeter to test
socket terminals #1 (+) and #2 (-).
14. Reset Signal Generator a. Frequency - 106 MC b. Output - pure RF or amplitude modulated.
15. Connect generator output to receiver FM antenna posts through standard FM dummy antenna. See Fig. 9.
16. Set pointer to 106 MC Reference Mark. Fig. 10.
17. Adjust FM oscillator C11, RF - C5, and antenna - C4, to obtain maximum AVC reading. Repeat several times to insure maximum reading. a. Tuning control must be rocked while adjusting C5 and C4 due to reaction on
C11.
18. Check calibration by setting dial pointer on 97 MC Reference Mark (See Fig. 10) and change Signal Generator to 97 MC pure RF or amplitude modulated.
19. Repeat Step 18 for a signal of 90 MC. If calibration in Steps 18 and 19 is off, it will be necessari to readjust inductance of oscillator coil, (RF and antenna coils also, if needed). See Text "FM Alignment Visual Method" - Paragraph 17. NOTE: This operation should be attempted by well experienced technicians ONLY.
VISUAL ALIGNMENT
The Bendix Radio Model 1521 receiver uses the ratio detector type of demodulator. Since the limiter stage is omitted, a direct visual alignment of the IF stages by means of an oscilloscope is impractical. However, the ratio detector may readily be aligned visually, and upon completion of the entire alignment procedure, a visual alignment analysis of a signal from antenna to discriminator load will indirectly determine whether the IF transformers are symmetrically aligned.
The general method of alignment, hereafter described, is to first align the IF transformers and the primary of the detector at 10.7 MC by means of a pure RF signal and a Vacuum Tube Voltmeter. After this preliminary alignment, the secondary of the IF detector is aligned visually by means of a frequency modulated RF signal at 10.7 MC and an Oscilloscope across the ratio detector output. It is a definite advantage to use 60 cycle modulation with the frequency modulated RF signal, since no syn-
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-35
MODEL 1521
chronization is needed between the horizontal and vertical signals to keep the scope pattern stationary.
Connect the test instruments as diagramed in Fig. 4 and as directed in the procedure hereafter. The connections for the Vacuum Tube Voltmeter and vertical input to the oscilloscope are changed to different test jack terminals as different steps in the alignment procedure are completed.
1. Signal Generator Setting a. Power - "ON" b. Frequency setting - 10.7 MC c. Modulation - pure RF or amplitude modulated. d. Output controls set for workable receiver output.
2. Receiver Settings a. Rotate band selector to FM band Maximum counter -clockwise. b. Short stator of local FM oscillator to ground.
This connection is #5 terminal on the
gang condenser, easily accessible from the top of the chassis. See Fig. 8.
3. Connect generator lead to terminal #3 of
gang condenser using .01 mfd coupling capacitor and ground shield to receiver chassis.
4. Connect Vacuum Tube Voltmeter to test
socket pins #1 (+) and #2 (-). See
Figs. 8 and 11. 5. Align 1st and 2nd IF transformers for
maximum AVC voltage, - trimmer C64B on 1st IF, trimmers C61A, C61B on 2nd. As alignment proceeds, reduce signal generator output such that reasonable reading is obtained on lowest scale cif DC Vacuum Tube Voltmeter. If no indication is obtained with maximum signal applied, apply signal to test jack in 1st IF can and tune 2nd IF transformer to approximate peak before moving generator input
back to #3 terminal. Adjust primary of
detector transformer (trimmer C62A) for maximum AVC voltage. Carefully realign all IF trimmers (C64B, C61A, C61B, C62A) several times for absolute maximum AVC voltage. 6. Reset Signal Generator a. Frequency 10.7 MC
b. Modulation - 60 cycle FM c. Sweep width - maximum possible
(should be a minimum of 200 KC). 7. Connect vertical input of scope to fest
socket pin #4 and ground as shown in
Figs. 4, 8, and 11 and connect a 60 cycle sine wave signal to horizontal input.
,,RANA CENERATOI,
RECIIV
TEST JAG
mu,.0,c0.
N MI LGNu NAT SE Tufty SNOW f R01 LI FREQUENCY If SIGNAL
. GENERATOR DOES NOT NAVE
STY OUT UT
C.MCIIÓN
II
Connections for Visual Alignment
A suitable 60 cycle signal may be obtained by removing one of the dial lamp sockets from its bracket and connecting the horizontal input lead directly to the socket or through a small capacitor if required for proper phasing. The sweep circuit in the scope is not used. 8. Adjust Signal Generator frequency until ratio detector curve is centered on the horizontal scope sweep - (This may deviate slightly from 10.7 MC.) 9. Adjust secondary of detector transformer (C62B) for a maximum "S" curve similar to Fig. 5a - (the "S" curve may be reversed depending on the internal circuit of the scope used.) Alternate adjustment of primary (C62A) and secondary (C62B) to obtain maximum desired curve. Some phase shift between the Signal Generator and scope horizontal sweep may be encountered, resulting in a double trace pattern, shown in Fig. 5b. In some oscilloscopes, provision is made for correcting this phase shift directly in the oscilloscope circuit. If so, rotate the "phase
shit" control until the curves coincide as
in Fig. 5a. If no provision is made in the 'scope, the correction might be accomplished by inserting a capacitor of suitable value in series with the 60 cycle signal and the horizontal input to the scope. The capacitor value will depend upon the amount of phase shift and the horizontal input impedance of the scope. Approximate capacitors range from .01 to 0.1 mfd. When aligning the secondary of the detector transformer visually, it is advantageous to leave the Vacuum Tube Voltmeter connected to test socket pins #1
(+) and #2 (-) as in Step 4. This will
facilitate the adjustment for maximum "S" curve since the meter will indicate the maximum AVC voltage and the scope will indicate the most linear "S" curve. Maximum meter reading obtained at same time best linearity is obtained, indicates correct alignment. 10. Rotate gang condenser such that the pointer is resting on 106 MC reference mark on dial face. Remove short from FM.
oscillator terminal #5 to ground.
11. Reset Generator a. Frequency - 106 MC b. Modulation - 60 cycle FM c. Sweep - maximum width (should be between 200 KC and 450 KC).
12. Connect Signal Generator lead to receiver antenna post through standard FM dummy antenna (See Fig. 9).
13. Oscilloscope should be connected as in
Step #7.
14. Adjust C11, local oscillator trimmer, until "S" curve is centered on scope. The Oscillator has been designed to operate on the high side of the incoming signal. It is possible to adjust the.trimmer (C11) at 106 MC so that the oscillator is operating on the "image" or low frequency side
©John F. Rider
PAGE 18-36 BENDIX
MODEL 1521
BENDIX RADIO DIV.
B
"S" Curves of the signal. To check the oscillator (C11) adjustment, set Signal Generator to 84.6 MC, frequency modulated, dial pointer still at 106 MC. If signal is NOT heard, adjustment of C11 is correct, but if signal is heard, oscillator trimmer C11 has been incorrectly set on the "image" frequency. Readjust C11 to other setting at 106 MC and recheck with generator at 84.6 MC. Signal MUST NOT be heard with pointer at 106 MC, and Signal Generator, frequency modulated, set at 84.6 MC. 15. Adjust C5, at same time "rocking" receiver tuning control to keep "S" curve centered on horizontal sweep line on scope, for maximum height of the "S" pattern. 16. Adjust C4 for maximum height of the "S" pattern. 17. Check calibration of 97 MC and 90 MC. a. If calibration is not within reasonable
tolerance at these points, the inductance of the FM oscillator coil must be adjusted. If dial pointer reading is
oboinensgcciloiloslmwaotponrrferhcseisoqgeiuhldeifnssrlceitygoqohutesllinoydwc.ey, aIfsniindpddoetu,iuncrottnsaecsnricrlmleeaautdoos-trf
coil inductance is too high turns must be spread slightly.
and coil Repeat
Steps 14 to 17 until correct calibration
is obtained.
18. Check and adjust inductance of RF coil. a. Tune receiver at 90 MC signal. Observe
AVC reading. "tuning wand"
Insert * into
iron RF
core end of coil at same
time "rocking" tuning control to maxi-
mum reading. If reading increases as wand is inserted, RF coil inductance is
too low and turns must be compressed
slightly. If reading decreases, reverse
wand and insert brass end into coil,
again "rocking" gang to maximum
reading. If reading increases, induc-
tance is too high and turns must be
separated slightly. Insertion of either
end of tuning wand should cause meter
reading to decrease.
19. Check and adjust inductance of antenna
coil.
a. Use exactly same procedure on antenna
coil as in Step 18.
NOTE. Operations 17, 18 and 19 are very
difficult and should be attempted only
by technicians who have had more than
average high frequency experience.
* A round rod of insulating material, approx-
imately 6" in length, with an iron core slug on
one end, and a non-ferrous metallic slug on the
opposite end.
TEST SOCKET PL¿1G
BEND/X .STOCK - (JP 3OQ2
VTVNI SHOULD PAZRELEROFOWERCRAEABNLNTYGEREHAVE
SCALE.
Test Circuit for Demodulator Transformer Alignment
HOT SSG GEN
.01 MFD
GND.
-MOT 300 OHM 1í4w
SIDE -ANTENNA TERMINAL
OFI W, OHM 1/4
VALUE
S
TO BE
ADJUSTED TO OUTPUTOIRMPEDANCE
OF SIGNAL GENERATOR
GND. SIDE OR CHASSIS
F.M. DUMMY ANTENNA
FM Dummy Antenna
W
U
Y ZW U
= WLWCr aa_..OWnmO 1
U
in
- m_
U > Y
-- - (D f.-
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_
Dial Reference Points
©John F. Rider
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-37 MODEL 1521
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©John F. Rider
www.americanradiohistory.com
PAGE 18-38 BENDIX
MODELS 1531, 1533
BENDIX RADIO DIV.
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©John F. Rider
RECORD CHANGER: GI Model 205, RCD.CH. 15-5
www.americanradiohistory.com
BENDIX RADIO DIV.
BENDIX PAGE 18-39
MODELS 1531, 1533
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©John F. Rider
30 096
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PAGE 18-40 BENDIX
MODELS 1531, 1533
Stock Number
Description
BENDIX RADIO DIV.
Stoc k Number
Description
ELECTRICAL COMPONENTS
CC6A34 CAPACITOR -Ceramic 100 mfd
500v (C24)
CE3A03 + CAPACITOR -Electrolytic 20-20-40
mfd (C32)
CE1T00 + CAPACITOR-Electrolytic 25 mfd
25v (C30)..
CM5A14 + CM5A22 + CM5A30 +
CAPACITOR -Mica 47 mmf (C7) CAPACITOR -Mica 100 mmf (C10) CAPACITOR-Mica 220 mmf (C5,
15, 28)
CP2T40 + CAPACITOR -Paper .05 mfd 200v
(C9, 20, 33)
CP4T31 + CAPACITOR -Paper .01 mfd 400v
(C18, 34)
CP4T36 + CAPACITOR -Paper .03 mfd 400v
(C26)
CP4T40 + CAPACITOR -Paper .05 mfd 400v
(Co, 19, 27)
CP6T12 + CAPACITOR -Paper .002 mfd 600v
(C35)
CP6T18 + CAPACITOR -Paper .005 mfd 500v
(C37, 38)
CP6T20 + CAPACITOR -Paper .006 mfd 600v
(C29, 31, 38)
CT1A11 + CAPACITOR-Trimmer 420-800 mmf
CT1A16
(C12)
CAPACITOR -Trimmer (1.6-18 mmf) (C4)
CT2A06 CT2A07
CAPACITOR -Trimmer (C16, 17) CAPACITOR -Trimmer (4-70 mmf).
(10-160 mmf) (C11, 13)
CT2A08
CAPACITOR -Trimmer (10-160 mmf)
(3-30 mmf) (C2 & C8)
CT3A00
CAPACITOR -Trimmer (20-150 mmf)
CV0006
(25-130 mmf) (C21, 22) CAPACITOR -Variable gang (C3j
LAOB00 + COIL -BC Ant. (T10)
LA0000 + COILS Ant. (T6)
LO6B03
COIL-AM Oscillator (T8)
LOÖCOO COIL -SW Oscillator (T7)
RC4D16
RESISTOR-Comp. 22 ohms 2w (R15)
RC4G30 RESISTOR -Comp. 3300 ohms 2w (R14)
RC1H18 + RC1H26 + RC1H44 +
RESISTOR -Comp. 330 ohms 1w (R3) . . RESISTOR -Comp. iw (R24) RESISTOR -Comp. 47K 1w (R4)
RC1H51 + RESISTOR -Comp. 100K 1w (R10,19)
RC1H54 + RESISTOR -Comp. 220K iw (R6,11)
RC1H58 + RC1H62 + RC1H6Ó + RC1H74 +
RESISTOR-Comp. 470K 1w (R1,8,121 RESISTOR -Comp. 1 Meg Iw (R5, 17,22) RESISTOR -Comp. 2.2 Meg 1w (R16) RESISTOR -Comp. 10 Meg irw (R9)
RC3H10
RESISTOR -Comp. 68 ohms 1w (R20)..
RC3H18
RESISTOR -Comp. 330 ohms lw (R13).
RC3H80 RESISTOR -Comp. 22E, lw (R23)
RC3H88
RESISTOR -Comp. 47K, lw (R2)
RV4C00 + POTENTIOMETER-Tone (R18) RV4S10 + POTENTIOMETER -Volume (R21 & S2)
SP1R01 * SPEAKER -12" Rd. P.M
SR3E01
SWITCH -Rotary 2 Pole - 3
Position (S-1)
TAOO11
TRANSFORMER -Output (T5)
TI00O2
TRANSFORMER -IF Input (T3)
TIOD13
TRANSFORMER -IF Output (T4)
TPOFO2
TRANSFORMER -Power (T9)
TRGL07
TRANSFORMER-R.F. Interstage (T2) .
r1 i
+' LAMP -Bayonet Base
BT2S05 + BT3S06 + BT4S06 CDOC18 CL2A08 + GROS00 + GROS16 HBOM55 HBOM63 HBOM64 HBOM65
MECHANICAL COMPONENTS BOARD -2 Terminal
BOARD -3 Terminal BOARD -4 Terminal CABLE -Dial 52i" CORD-A.C. Power GROMMET-Tuning Gang Shockmtg GROMMET -Chassis S hoc kmohnt FRAME -Back Plate Top BRACKET -Variable Capacitor Mtg BRACKET -Chassis Shockmount BRACKET -Pointer Slide
HBOM66
HB0M87 HCOCOO HCOS00 + HROSO1 + HSOCOO t HSOF16 HS6F00 + IDOM13 + JR2009 JR1S00 + MBOBOO + MPOI00 + MSOT13 PBODO2 PBODO5 + PIOP01 + SOODO2 + SO8L03 + XS0008 XSOZO2 +
BRACKET -Lamp (L.H BRACKET -Lamp (R. H CLIP -Coil Mtg CLIP -Hairpin Spring RIVET -.171 x .083 Shoulder SPRING -Dial Cord SPACER -Transformer Flat SPACER -Flared Sleeve (Gang Mtg.) INDICATOR -Dial RECEPTACLE -2 Contact Phono Power RECEPTACLE -Single Control Phono BEARING -Tuning Shaft PULLEY-Dial Cord Idler SHAFT -Tuning PLATE -Dial Back FRAME -Back Plate Bottom PLATE -Line Cord Insulating SOCKET -Dial Light SOCKET -Loktal Tube STRIP -Copper .025 x I x 1-3/164 STRIP-Fishpaper (line & audio)
The Bendix models 1531 & 1533 radios incorporate the same model chassis. It' is a sis tube superheterodyne, two -band circuit, pro-
viding radio reception on the Standard AM
Broadcast Band (540 to 1620 KC) and the 6 to 12 MC Shortwave. Band. A high-impedance phono
input jack is provided. The continually vari-
able tone control is of the high frequency
cut, bass boost, feed-back type. All six tubes
are of the locktal type. One stage of tuned RF
is provided on the Standard Broadcast Band.
The builtiu low -impedance loop antenna functions
on both the Broadcast and Shortwave Bands. Better
shortwave reception will of course be obtained
by using a good outside antenna. A suitable
binding screw for attaching such an antenna is
provided on the rear of the cabinet.
SPECIFICATIONS Power Requirements
105-125 volts, 60 cycles AC Power Consumption (including record changer)
75 watts Tuning Frequency Range
Broadcast Band 540-1620 KCS Shortwave Band 6-12 MCS
- Intermediate Frequency ¢55 KCS
Tube Complement
2-7B7, 1-7A8, 1-7C6, 1-7C5, 1-7Y4 Two No. 44 dial lamps are used
©John F. Rider
www.americanradiohistory.com
H253
7F8 - IST MIXER
1000
T .0082
.000 47
s' 49 539.35
MC
H 252
88- 108MC
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H 251 1 000005
38.65-48.65 MG
NE9 7F8 R O2 MIXER
DAVID BOGEN CO., INC.
6AC7- IST I.FAMP
H254(10.7MC)
H254(IO.7MC)
2200
.000005
N I
óm
.0082 L 6C4
AFG.
N
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ó
MI
_ - 6AC7-2ND I.F AMP 254
47K 6
II-1.000C32 _t
6SJ7 LIMITER
( I0.7MC)
8
H255
.0082
.00005
47K
.05
BOGEN PAGE 18-112
MODEL R601
6H6
F M. DET
.0001 .0001
IOOK - 47K
100K
40K
OFF
AM
FM10.-
C6I2 h
H249
6SK7-R.F AMP
6SA7
OSCILLATOR
a MIXER
H248 ,c(1630KC-540KC)
8
)I
. 001
1-163OKC-540KC
IOK
100K
ANN/
L----------
995-2085 KC
6AL7GT PATTERN SEQUENCE DURING TUNING
OFF TUNE(-)
ON TUNE
NOTE: SHADED AREA
INDICATES GREEN LIGHTED AREA ON FACE OF
INDICATOR.
FIG. I
FIG. 2
6SK7-I.F
H223 (455KC)
4
2ND DET &AUDIO
6SL7
---- H224 (455KC)
.24 MEG .00025
.00005 6 .000Ó
Ho
47K 100K
5
.22 MEG.
3.3 MEG.
100K
(
.22 MEG.
.05
OFF
AM
FM
OFF TUNE (+)
AM
FIG. 3
ti 117 V. A.C.
60
T 362 B
bVlé RECTIFIER 5Y3
T 501
b Ób
1000-2W
10
FILAMENTS OFF
AM FM
OUTPUT
- BAND SELECTOR
'SWITCH, REAR VIEW.
OFF CHANNEL (-)
ON CHANNEL
OFF TUNE(-)
ON TUNE
ON CHANNEL OFF TUNE(+)
r
OFF CHANNEL (+)
AM Section
Range: 540 to 1630 KC
FM
I.F. Frequency: 455 KC
FM Section
5 t
Power Requirements:
--J
117 volts - 60 cps 80 watts
FIG 4
FIG. 5
FIG- 6
FIG. 7
FIG 8
Range: 88 to 108 MC I.F. Frequency: 10.7 MC
©John F. Rider
DAVID BOGEN CO., INC.
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©John F. Rider
º
LC,
di
BOGEN PAGE 18
MODEL R502
PAGE 18-4 BOGEN
MODEL R502
DAVID BOGEN CO., INC.
L.
N
ñ
Input Voltage: 117 volts Power Frequency: 60 cycles 1/ange: 540 KC to 1630 KC rnd 5.3 MC to 18 MC. Intermediate Frequency 455 KC Tubes: Total, 6: 1-6SG7, 1-6SA7, 1-6SK7, 1-6x6, 1-6U5,
1-6x5 Output: The output matches a high impedance phonograph line. Installation: Connect an antenna and ground to the erminals marked RANT" and "GND". From the audio output jack, connect with a single conductor shielded wire (to reduce the possibility of hum pickup) to the amplifiers. Aligning Instructions: Allow tuner to warm up for 10 minutes
before aligning.
I.F. Alignment: 1- Connect the test oscillator output to R.F. section of var-
iable condenser. 2- With "Band Selector Switch" in "Broadcast" position turn
station selector to 540 KC. 3- Tune test oscillator to 4.55KC end adjust its output so that
the tuning indicator tube starts to close. 4- Adjust the I.F. trimmers for the narrowest shadow in the
tuning eye, readjusting the oscillator output as necessary. Short Wave Band Alignment:
1- Connect the test oscillator output to the "ANT" and "GND" terminals of the tuner.
2- Set both the test oscillator and tuner dials to 18 MC. 3- Make certain that the tuner's variable condenser plates
are fully open when the dial pointer is at 18 MC. 4- Adjust trimmer on the oscillator section of the variable
condenser for minimum shadow in tuning indicator. 5- Set both test oscillator and tuner dials to 16 MC. 6- Adjust trimmers on the Antenna and R.F. sections of the var-
iable condenser for minimum shadow in tuning indicator. Broadcast Band Alignment: 1- Put "Band .Selector Switch" in the "Broadcast" position. 2- Set both the test oscillator and tuner dials to 540 KC. 3- Adjust padder condenser for minimum shadow in indicator
tube. 4- Set both the test oscillator and tuner dials to 1630 KC. 5- Make certain that the tuner's variable condenser plates
are fully open when the dial pointer is at 1630 KC. 6- Adjust "broadcast" trimmer of oscillator for minimum shad-
ow in tuning indicator. 7- Set both test oscillator and tune- dials to 1400 KC. 8- Adjust "Broadcast" trimmers of antenna and R.F. circuit
for minimum shadow in .indicator tube. 9- Set both the test oscillator and tuner dials to 600 KC. 10- Readjust padder condenser for minimum shadow in indicator
tube 1.1- Set both the test oscillator and tuner dials to 1400 KC. 12- Readjust "broadcast" trimmers of antenna and R.F. circuit
for minimum shadow in indicator tube.
©John F. Rider
BROWNING LABORATORIES, INC.
BROWNING PAGE 18-1
MODELS RJ-12, RJ-14
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©John F. Rider
www.americanradiohistory.com
PAGE 18-2 BROWNING
P1JDELS RJ-12,
BROWNING LABORATORIES, INC.
-14 ) R?
F~ IN3lIt .T4R TG,G.N^
Tt
N.
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S. ----
S:,:átt.l s;..NLE.R
Tet
s. ;;PORT
.1sT WIPES
A.A SaAw
SPEAKER
OAUUDTIOPUINPUPHTOTNO
V
300 OHM DIPOLE
BALANCED ANTENNA
INPUT
POWER ABLE
RJ-12 INSTALLATION DIAGRAM AND ANTENNA DATA
AWR 3,1E-IE
REAR VIEW OF TUNER
ÙWIG. RJ-12-1223
CUTOUT
-AI"- - ., ar-o.
TNNRM
.AN66.rrGN
} L. 3: --+I .re-I eF-3
If
BOTTOM OF CNASfiS
4 OLES-5"/16 DIA.
NOTE' SHAFT LENGTH FOR PANEL THICKNESS I./ 4 OR LESS
RJ-I2 PANEL LAYOUT FOR MOUNTING
OWG RJ-12.1222
RO INPUT
IISV
_
0101 FREED 13005
CHA551S BOTTOM VIEW OF TERMINAL BOARD
PF -12 POWER SUPPLY FOR RJ-12
BROWNING LABORATORIES INC 'DRAWING Ra .2 ,111A
F -M CHANNEL NUMBERS
The table below gives the frequencies for the even -numbered F-M channels. The intervening ones can be obtained by adding or subtracting 0.2 MC., which is the spacing between channels.
No.
MC.
No.
MC.
No.
MC.
No.
MC.
201
88.1
202
88.3
204
88.7
206
89.1
208
89.5
210
89.9
212
90.3
214
90.7
216
91.1
218
91.5
220
91.9
222
92.3
224
92.7
226
93.1
226
93.1
228
93.5
230
93.9
232
94.3
234
94.7
236
95.1
238
95.5
240
95.9
242
96.3
244
96.7
246
97.1
248
97.5
250
97.9
250
97.9
252
98.3
254
98.7
256
99.1
258
99.5
260
99.9
262
100.3
264
100.7
266
101.1
268
101.5
270
101.9
272
102.3
274
102.7
276
103.1
276 278 280 282 284 286 288 290 292 294 296 298 200
103.1 103.5 103.9 104.3 104.7 105.1 105.5 1Ö5.9 106.3 106.7 107.1 107.5 107.9
©John F. Rider
www.americanradiohistory.com
BROWNING LABORATORIES, INC.
BROWNING PAGE 18-3
MODELS RJ-12
RJ-1L
Designed for high-fidelity reception in the new high frequency FM band as well as quality reception in the standard AM broadcast band, the Browning Universal FM-AM Tuner Model RJ-12 is primarily intended for %hose who wish to build radio sets into bookcases, drawers, shelves, walls, or cabinets. Its extreme sensitivity and high fidelity are not exceeded in the most expensive of commercial home radios. The Model kJ-14 is the RJ-12 mounted on a rack panel for laboratory and special uses. Employs Major Armstrong's circuit on FM.
INSTALLATION: In mounting the unit, due consideration must be given
to ventilation. Approximately 65 watts of heat must be dissipated. Position of mounting of the unit is unimportant.
The loudspeaker used should, for best results, be located a few feet from the RJ-12 and the audio amplifier. If the speaker is in the same cabinet with the tuner end audio amplifier, placing these latter two units on felt or rubber padding may improve the quality of reception.
The following components are necessary to complete a radio receiving system with the RJ-12: a highfidelity audio amplifier, loudspeaker, antenna, and a power supply. The power supply may be omitted if the audio amplifier can provide the proper voltages and currents.
Any high quality audio amplifier and loudspeaker should work satisfactorily with the RJ-12 tuner. The audio gain should be such that an input voltage of 0.1 volt will provide ample volume.
The tuner is designed for maximum performance when used with a 300 ohm FM antenna. Most any commercial FM antenna having this impedance should work satisfactorily. It is important that no part of the antenna system be grounded, because of the balanced feed required on FIL operation. On AM operation the entire antenna and feeder system act as the antenna. The antenna system should be located as high as possible. For those who wish to build their own, a drawing has been provided to furnish the necessary information.
Shielded leads from the tuner to the amplifier and also from the phonograph pickup to the female connectors in the rear of the RJ-12 chassis are essential. The two male connectors will be found plugged into the female connectors in the RJ-12 and several feet of shielded wire is packed with each tuner. Since individual installations will vary, this wire is uncut and not attached to the malo connectors.
When making up the cables, the center conductor should be stripped and tinned, inserted in the center sleeve of the male connector, and heated until the solder flows making a good joint. Bring the braid up on the outside shell of the plug and solder all the way around.
There are some oases where the shield on the lead between the audio output of the RJ-12 and the amplifier employed may not be a sufficient ground bond between the two. In cases where there is any hum (not present in the audio amplifier itself), try bonding the RJ-12 chassis to the audio amplifier with copper braid or number 16 or larger wire.
Power requirements for the RJ-12 tuner arc 250 volts DC at 65 milliamperes and 6.3 volts AC or DC at L amperes. Often times these voltages can be made available from the audio amplifier. If these voltages are not available, a separate power supply should be provided such as the Browning Model PF -12, a schematic diagram of which is shown.
OPERATION:
After proper installation, the set may be put into operation by turning the ON-OFF switch clockwise; the dial should be immediately illuminated. Wit..in a minute of warming up, the tuning eye should emit a bright green glow. The set is ready for operation on AM. Allow a 10 minute warm-up period for FM.
Alt or FM reception can be selected by the AM-FM?HOMO switch. Starting with the band switch knob in the farthest counter -clockwise position and rotating clockwise gives AM -FM-PHONO reception. Rotate the TÜNIUG knob to select the desired station. As the tuning approaches the station, the tuning eye will gradually close. Correct tuning is indicated by maximum eye closing. Increase the volume to the desired level by rotating the VOLUME knob clockwise. In tuning in FM stations, always tune for the complete elimination of noise. In cases where the signal strength of the FIB! station is too low to saturate the dual limiter, some background noise may be expected.
For those who wish to incorporate phonograph connections to the tuner, a phono input connector is provided at the rear of the chassis. By turning the selector switch to the PH010 position, the phonograph input is connected to the amplifier through the VOLUME control; thus eliminating a separate volume control for phonograph operation.
It should be noted that while tuning between stations, both on FM and aIS, the rushing noise is normal for the tuner. The extreme high sensitivity is responsible for picking up random atmospherics, but this will be eliminated when a station is tuned in unless the signal strength of the station is of the same order of magnitude as that of the atmospheric noise.
ADJUSTMENT:
No adjustment should be made on the tuner aside from the panel controls. Adjustments and alignment on the FM portion should only be made by experienced perspnnel with the proper visual alignment equipment. Ordinary meters or aural methods are in general unsatisfactory for alignment. Replacement of tubes can usually be made without realignment.
©John F. Rider
www.americanradiohistory.com
PAGE 18-4 BROWNING
MODELS RV -10,
RV -11
BROWNING LABORATORIES, INC.
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©John F. Rider
QUO , 'Q6Q' a ó
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www.americanradiohistory.com
OWNING LABORATORIES, INC. '
ALIGNMENT PROCEDURE: The following equipment is recommended for alignment of these models:
BROWNING. PAGE 18-5
MODELS RV -10 RV -11
1. 2.
3. 4.
RV-10 IF ALIGNMENT:
Standard signal generator. FM signal generator capable of sweeping at least 200 kc. at 8.25 mc. Oscilloscope. Voltmeter of 20,000 ohm/volt or better.
Visual Method: To align the IF section of the tuner using the visual method, connect the sweep voltage output of the frequency-modulated signal generator to the horizontal deflection input of the oscilloscope, and adjust the controls until the horizontal sweep nearly fills the screen. Adjust the FM signal generator to sweep from about 8.0 to 8.4 mc., and apply the output to the grid of the second IF stage. Connect the vertical deflection input of the oscilloscope across C24 in the grid circuit of the first limiter. The rectifying action of the grid circuit of this stage will provide a signal corresponding to the amplitude response of the preceding circuits. Adjusting the controls of the scope should produce a picture of the response curve. Always use as small a signal from the generator as possible consistent with a good image. In order to provide a frequency marker for alignment, apply a signal of exactly 8.25 mc. from the AM signal generator to the same grid where the FM signal is applied. This is best done by using a small mica isolation condenser in series with the 8.25 mc. source. Adjust the amplitude of the 8.25 mc. AM signal until a small marker pip appears on the response pattern, as shown in Fig. 7. Use only enough marker voltage in all cases so that the pip is just discernible. The location of this marker pip on the curve indicates the center alignment frequency of the amplifier. The adjustment screws of T3 should now be set for the desired characteristic. In all cases, the marker pip should be left at the center or axis of symmetry of the curve. Adjustment of the screws will produce varied patterns. For guidance, the curves of typical misalignment and proper alignment are shown in Fig. 7. Greater amplitude of the pattern indicates higher gain, so adje: ;.-rents shoulJ be made not only or bast symmetry but for optimal gain as well. Having adjusted T3 in this fashion, the output from the signal generators must now be applied to the grid of the first IF amplifier. Next, T2 should be adjusted in the same manner. Signal generator outputs should b3 reduced as a stage of gain has been added. When 72 is aligned satisfactorily, apply the signal
©John F. Rider
SAGE 18-6 BROWNING
`I"IUiJBJLS RV -10, RV -l1
BROWNING LABORATORIES,` INC.
generators to the grid of the mixer tube. Align T2 for the best possible response
curve. The pattern appearing on the screen at this point is the overall response
of the whole IF amplifier and should be similar to that shown in Fig. 7 for proper
alignment before going on to align the discriminator.
Meter Method: Satisfactory alignment can be made using only an AM signal
generator and a high impedance DC voltmeter by the following method, although it is
considerably more time-consuming than the visual procedure. The meter should have
an impedance of at least 20,000 ohms per volt, and be capable of reading negative
DC voltage of approximately 3 volts. Connect this meter across C24 in the grid
circuit of the first limiter, with the ground side of the meter going to'the groundo
side of the condenser. Th=e tuning eye employed in the tuner can be used for
indicating maximum respcn-e. However, this is not as satisfactory as a meter.
Apply the output of t',c AM signal generator to the control grid of the second IF
amplifier tube. Set the signal generator to 8.25 mc. When making these adjustments,
always use an input signal level which results in meter readings of from 1 to 2 volts.
Adjust the screws on T3 for maximum meter reading. The frequency of the
signal generator should be changed in steps of 20 or 30kc. above and below 8.25 mc.,
and the readings noted in order to determine if the curve is symmetrical about the
8.25 mc. center frequency. If the results show that the curve is not symmetrical,
further adjustments must be made and rechecked until a well-balanced curve results.
When checks show the desired result, apply the signal to the grid of the first IF
stage. Tune transformer T2 in the manner prescribed for T3. When this has been
acco^plished, transfer the AM signal generator to the grid of the mixer. FM DISCRIMINATOR ALIGNMENT:
Visual Method: Alignment of the discriminator is easy with the visual method. Apply the output of the frequencymodulated generator to the grid of the first limiter. Apply a signal frail the AM generator at 8.25 iac. to the same point Connect the vertical input of the oscilloscope across C29 in the output of the discriminator. Make certain that the ground of the oscilloscope goes to the ground Fide of this condenser. Adjust the controls for the best imager using as small RF signals from both generators as practical. Alignment must be made for symmetry about the 8.25 mc. marker pip, and linearity above and below tl is point as shown in .'ir-. 8.
©John F. Rider
www.americanradiohistory.com
B' WNING PAGE 18-i
BROWNING LABORATORIES, INC.
MODELS RV-l0,RV-11
Meter Method: When only a meter and AM signal generator are available,
connect the output of the generator to the grid of the first limiter, and a vacuum
tube voltmeter, reading plus or minus DC voltage of about 2.0 volts, across C29 in
the discriminator output. Set the frequency of the signal generator to exactly
3.25 me. Adjust the secondary of the discriminator until the meter reads zero.
change the frequency of the generator in 20 kc. steps above and below 8.25 oc.,
and note the voltage generated at each step. Readings should increase linearly
each side of center frequency out to 75 kc. Should more voltage be generated on one
side than the other, adjust the primary of this transformer and recheck. A number
of trials and checks should result in a curve very similar to that shown in Fig. 8.
FM RF ALIGNMENT: To align the RF portion of the tuner, a signal generator covering
88 to 108 mc. and a DC meter having an impedance of at least 20,000 ohms per volt
and capable of reading 3.0 volts are required. Apply the signal generator to the
antenna terminals and connect the meter across C24 in the first limiter. Set the
signal generator at 108 mc. and set the tuner dial to the same frequency. Adjust
the HF Osc. Trimmer (on top of chassis at rear of va_ia'?le con bnser) until the
signal is heard or the meter indicates maximum voltage. Set the tuner dial at 90 mc.,
and the sí_r_nal reneratcr to correspond. With a non -conducting rod, compress or E. -and the oscillator inductance as needed to tune in the signal. Return the generator
and dial to the high-frequency end and recheck. Readjust the trimmer if necessary.
Adjustments of the inductance and trimmer are interacting, and several adjustments
of each may be required for exact alignment. Reset the signal generator and tuner
dial to 108 mc. Rock the tuning for maximum voltage indication on the meter. Adjust
the signal level as necessary to maintain the voltage at less than 2.0 volts. Adjust the "RF Trimmer" (trimmer on the center section of variable) for highest meter reading.
Set the generator and dial to 90 mc. and rock the tuning for highest meter reading.
Adjust the RF coil inductance with the non-conducting rod for best gain. Here again, several adjustments at both ends of the band will be necessary 'or the best alignment since adjustment at the one end will aF'fect tuning at the other. The antenna circuit can simply be trimmed at the high frequency end of the band and left, since the
application of antenna or signal generator to the antenna terminals severely damps
this circuit and the tuning is not critical. When this adjustment has been made,
the tuner is completely a'ignod.
©John F. Rider
www.americanradiohistory.com
PAGE 18-8 BROWNING
MODELS RV -10,
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www.americanradiohistory.com
PAGE 18-4 CAPITOL
CAPITOL RADIO CORPORATION
MODEL UN -6I "MUSIC MASTER"
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MODEL UN -72
"HIGH FIDELITY SYMPHONIC"
7 tube broadcast and short wave bands, R.F.
stage, I.F. coils, high Q. shielded loop, Alnico 5, 3. 16oz. magnet, 6"
speaker, A.V.C.
MODEL UN -72P
©John F. Rider
www.americanradiohistory.com
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CONCORD RADIO-CORP.
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ALIGNMENT AND SERVICE DATA
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SPEAKER TRANSFORMER
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IRS 1U4 - 155' 3v4
Remove chassis from cabinet for alignment. A signal generator is required having the following frequencies: 455 KC and 1400 KC. An output meter should be connected across the speaker.
FIRST STEP: Connect the hot lead from the generator to the ANT. section cf the gang condenser, through a .1 MFD. condenser. The ground lead from the generator may be connected to any spot on the metal chassis. Turn the gang condenser to complete minimum capacity. Set the generator to 455 KC. Adjust the movable trimmers in the IF cans, until a maximum reading is noted on the output meter.
The volume control of the receiver should be turned to maximum during the IF and all subsequent alignment and the generator output as low as passible to prevent the AVC from working and giving false readings.
SECOND STEP: With the leads from the generator still connected as in IF alignment, adjust the generator to 400 KC. Set the dial pointer to 1400 KC on the dial scale. Adjust the oscillator trimmer until the signal is tuned in.
THIRD STEP: Remove the generator leads from the condenser. Connect the hot lead from the generator through a 200 MMFD. condenser to one of the leads which project from the back of the loop antenna. Connect the ground lead of the generator to the remaining lead. With the generator and the receiver still tuned to 1400 KC, adjust the antenna trimmer until a maximum reading is noted on the output meter.
TUBE AND TRIMMER LOCATION
©John F. Rider
BATTERY OPERATED 14 VA- 90 V -B
VOLUME CONTRO_
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www.americanradiohistory.com
PAGE 18-2 CONCORD
MODEL 1-506
CONCORD RADIO CORP.
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CONCORD PAGE 18 -
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Receiver chassis
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POSITION OF DIAL POINTER
GEN. FREQ.
GEN. CONN.
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TRIMMERS ADJ. IN
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©John F. Rider
www.americanradiohistory.com
PAGE 18-4 CONCORD
MODELS 1-507, 1-508
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CONCORD RADIO CORP.
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MODEL 1-513
CONCORD RADIO CORP.
VOLTAGE MEASUREMENT
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
All reading in AC.11C ¡meition of power rdertor ewteh with 28,001 ohtn per meter. Reading. taken are !card to ground.
11723
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260
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CORRECTIONS
1_Servleing Not.. Section: 12. Volraa e Meaaurements Section:
Stator large .action gang . 20,000 ohms per meter to reed:
open to reads Stator large 20,000 obtus per volt D. C.
...Ion gang closed
1,000 ohms per volt A. C. meter
11723 to read: 11723
3. Sehematie Wagram 3..0001
No Md C 18: .1 mfd, 200 volts to nad: .1 mfd, 400 volts 1000 mfd 6v D. C. Pin # 1 of V2 to ground.
304
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I.F. TRANSF.
Tuning Range: Standard Broadcast 540.1640 KCS
Power Supply: Direct Current 105.125 volts or altercating current 105-125 volts, 50-60 Cycle or Batteries.
Power Coneumption: AC or DC-12 watts
Battery Complement: 2--41/0 Volt "A" Batteries
Eveready No. 746 or «Initiaient.
2-45 Volt "B" Batterier
Eveready No. 482 or equivalent.
Tube Complement, IRS-Converter
IT4-I. F. Amplifier ISS-2nd Det.-AVC-lat Audio
SQL-Power Amplifier 11723-Rectifier
- Mechanical Charecterl.iat Dimendona
Height: (including feet) 71II/
inches
- _- __= -1
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Width: 13 inrbea Depth: (including knobs) 6b1/í incur..
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FRONT VIEW
I
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SERVICING NOTES
All ope,-ificatious and meaaorementa lased on 117 Volt., 60 Cycles, und all readings based on a
20,000 01,10. per volt meter. All readings are taken with volante control (switch No. 2) in maxi.
nom elockw hie position. Apply the lower siguallevel from the signal generator.
Output: 50 mw inn a 3.2 ohm voire roil ingtr-dattee.
Generator C necton
Stator krge section
R11$ open
Antenne -
-.. loop Dire
Antenne loop wire
SPEAKER
TOP VIEW
D mmy Ant.
.1 MFD r and.
F req. 4335 KC
Id^.
Trmn ers
I. 2, 3, 4
VAR. COND.
Approxinatr reading 0.4 Volt.
1. F. ALIGNAIENT: With signal generator, set a 455 KC, apply signal through a .1 MFD condenser dummy to R.F. grid of convertor (IRS) or the stator of RF section of the variable condenser (,ondenaer moat Ife fully meshed). Peak I.F. trimmer* 1, 2, 3, 4 (top view diagram) to gire maxi -
reading on output meter ronnerted across voice coil. (Note: If for any possible reason the Sig.
OOutputv. yr n.tivit foap I d Des not come through indicating the receiver in way out of alignment, apply the signal to the grid
I of th e I.F. Amplifier (114) and tune signal in by trimmers 3. 4 of second I.F. Transformer. Peak
Mou.
110 for r wximum and once this stage is tuned, repeat above procedure.)
- ------ - 210 taud rond.
0 141 KC
21g1 mta1
6101 KC
5 & 6
Mas.
VariableMea. Rata
Alignment: With tignal generator, set at 1400 KC. apply signal through dummy antenna
SO
nrmf condenser) to the antenna loop wire. Set dial of receiver to 1400 KC and peak trimmen
'(200R.F.
150 5 & ( to give maximum reeding of output meter. Then set signal generator at 600 KC and tune re-
to 600 KC mark on did. 'this vetting should fall on calibrated point.
©John F. Rider
www.americanradiohistory.com
CONCORD RADIO C RP. 0,
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CONCORD PAGE 18-7
MODE 1-51
o N
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PAGE 18-8 CONCORD MODEL 1-51L_
CONCORD RADIO CORP.
DIAL CORD DRIVE
SPEAKER
GANG CONDENSER
SHAFT (DIAL POINTER
ON FRONT END)
C2 C
C
CI OSC.
GANG CONO.
C3 RF
ELECT CON()
0 1213E6
TI&LI TRANS
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12AT6 AN TENNA
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TUBE LAYOUT
SOCKET 128E6 COSY.
FRONT OF CHASSIS
TUNING SHAFT
PI.
vrn
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1,0004s./P.V.
RESISTANCE
-6
-6
-6 ON 100V SCALE
10K
-3.5 ON 10V SCALE
2
0
0
3
AC
AC
4
AC
AC
5
.82
+82
8
.82
.82
7
-1.0
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0 AC AC .82 .82 -0.2
0 45 ,s.
MS WA-
OVER 6 OVER 5 MEGS 3 MEGS
LOOP
I F.
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R7 12AT6
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5055
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5 6
7
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1
OET. AVC
2
AUDID
3
4
5
6
7
-1.0 0 AC AC
.25 .82
0
-0.5 0 0 AC -0.5 -0.5 .40
-0.6 0 AC AC
.24 .82
0
-0.2 0 0 AC
-0.2 -0.2 .38
-0.2 0 AC AC .22 .82 0
0 0 u AC
.
0 0 .15
3 0
25,, 15AOVER 5 MEGS OVER 5 MEGS
0
10 MEGS 0
n 0
15 500E 500K OVER 6 EROS
CSC TZ TRAN5.
n fi OFF -ON -5W VOL COST.
R10
C12
5085
1
AUDIO
2
m
OUTPUT
3
35W4 D
5
6
7
SPEAKER
BOTTOM VIEW
35W4
HECT
2
3
4
5
6
7
0
5
AC AC .120 .82
AC
AC AC AC AC .125
0
6
AC AC .120 *82
AC
AC AC AC AC .125
0 .5
AC AC .120 482
--
AC
AC AC AC AC .125
500K 150-1,.. 85 -n35-nOVER 5 WEGS OVOS 5 MEGS
--
110.ti
851`115,u 115 A.-
110AOVER 5 MEGS
ALL VOLTAGE AND RESISTANCE MEASUAIO®IT MADE WITH RESPECT TO CHASSIS GROUSE AND WITH A LINE VOLTAGE CF 116 V. A. C.
ALIGNMENT
THE CHASSIS MUST BE REMOVED FROM THE CABINET IN ORDER TO ALIGN THE RECEIVER. CONNECT THE OUTPUT METER ACROSS THE VOICE
COIL. CONNECT ms SIGNAL GENERATOR TO THE STANDARD HAZELTINE
MODEL 1150 LOOP, AND COUPLE LOOSELY TO THE RECEIVER LOOP. SET THE RECEIVER VOLUME CONTROL AT MAXIMUM.
THE TUNING CONDENSER PLATES SHOULD BE FULLY LIESIIED WHEN DUE DIAL POINTER IS AT THE INDEX MARK AT THE LOW FREQUENCY END OF THE DIAL. THE SIGNAL GENERATOR OUTPUT SHOULD BE SUFFICIENT TO GIVE HALF SCALE DEFLECTION ON THE LOWEST SCALE OF THE OUTPUT 14TER. SET THE SIGNAL GENERATOR TO 455 KC. ADJUST THE Z.F. TUNING SLUGS FOR MAXIMUM METER DEFLECTION IN THE FOLLOWING SEQUENCE: L2, Ll. SET THE GENERATOR AND RECEIVER TO 700 KC AND ADJ [ST OSCILLATOR TRIMMER C2 FOR MAXIMUM OUTPUT. SET THE GENERATOR AND RECEIVER TO 1400 KC AND ADJUST LOOP TRIMMER C4 FOR MAXIMUM OUTPUT.
©John F. Rider
www.americanradiohistory.com
CONCORD PAGE 18-9
©John F. Rider
www.americanradiohistory.com
PAGE 18-10 CONCORD MODEL 1-518
CONCORD RADIO CORP.
LOOP
I -
C5
I
R2 R3 R4
C6 R5 R6 C7
R9-
OSC. CO I L
ON-OFF SW.
RI\f VOL.CONT.
CII SPEAKER
C16 RII
ALIGNA:ENT
The chassis is removed from the cabinet in order to align this receiver.
Connect the output meter across the voice coil. Connect the signal generator to the standard Hazeltine loop, Model 1150, and couple loosely to the receiver loop. Set the receiver volume control to maximum. the tuning condenser plates. should be fully meshed when the dial pointer is at the index mark at the low frequency end of the dial. The signal generator output should be sufficient to give a readable deflection on the output meter.
Set the signal generator to 455 kc. Adjust the I.F. tuning slugs, L4, L3, L2, Ll, for maximum output on the output meter. Set the signal generator and receiver to 1600 kc and adjust the oscillator trimmer C4 for maximum output. Set the signal generator and receiver to 1400 kc and adjust R.F. trimmer C3 for maximum output.
©John F. Rider
www.americanradiohistory.com
CONCORD RADIO CORP.
CONCORD PAGE 18-1 MODEL 1-518
TUBE
PIN
IR5
1
Conv
2
3
4
5
6
7
IU4 .
I.?. Ampl 1
2 3 4 5
e3
7
IS5
1
Det. AVC
2
Audio Amp 3
4
5
6
7
3V4
1
Audio
2
Output
3
4
5
6
7
117Z6
1
Rect
2
3
4
5
6
7
8
VTVM
0 105
44 -5
0 0 1.7
3.3 105 105 0.6 3.6 3.3
5
1.7 0
1.2 23 46
1.1 3.3
5
100 105 105
0 8
0 AC AC 135 AC 105
0
120
20,000 P.V.
0 105
44 -2.6
0 0 1.7
3.3 105 105 0.1 3.6 3.3
5
1.7 0
0.2 20 42 0
3.3
5
100 105 105
0 8
0 AC AC 135 AC 105
0
120
1,000 P.V.
0
105 42
0 0 0 1.7
3.3 105 105
0
3.6 3.3
5
1.7 0 0
3
12 0
3.3
5
100 105 105
0 8
0 AC AC 135 AC 105
0
120
RESISTANCE
0
Over 5 megs Over 5 mega
100 K 0 5.5 megs
12
22 fi-
Over 5 megs Over 5 megs
5.5 megs
22_n..
34 -el. 34 -n_
12-rL 0 1.7 megs 5.5 megs
Over 5 megs
8megs
22 -n...
32 -n-
Over 5 mega Over 5 mega Over 5 mega
-
1 meg
52 lt..
0
235_a_ 240 -in Over 5 mega
240 fL
Over 5 megs
0
Over 5 megs
All values are positive unless indicated otherwise.
©John F. Rider
PAGE 18-12 CONCORD MODELS 1-601,
1-602, 1-603
CONCORD RADIO CORP.
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www.americanradiohistory.com
- CLARI SKEMATIX Registered Trademark
CONCORD RADIO CORP.
CONCORD PAGE 18-13
MODELS 1- 01 1-602, 1-603
T2
2A360
o 11 9 10
/
/
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C6A
-
\ \ GANGED
BAND -SWITCH SHOWN AT 1 ST -POSITION. BROADCAST BAND
540-1600KC.
6 S A7 MIXER
AVC
3
2A360
2? 4
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C 8 C68
PHONORAD I 0
SW.
T2
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2A360
o
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2A360
/
GANGED
IC4
6S A7 MIXER
BAND - SWITCH SHOWN AT 2ND POSITION CLOCKWISU-
SHORT WAVE BAND
© John F. Rider
www.americanradiohistory.com
B+ PHONO -
RADIO S W.
PAGE 18-14 CONCORD
MODELS 1-601, 1-602, 1-603
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CONCORD RADIO CORP.
CONCORD PAGE 18-15
MODELS 1-601, 1-602, 1-603
REPLACEMENT PARTS LIST
RESISTORS
NOTICE: There is a Model Number label on the chassis. This label idei,tifies
the radio as to chassis, dial and issue letter. When ordering parts or writing, give ALL information appearing on this label.
R i. R-7
R-2, R-4 R-3 R-5
B85225 C84393 B84393 884222
OHMS 2.2 meg. 39 K 39 K 2200
WATTS 0.5 1.0 0.5 0.5
Carbon Carbon
Carbon.
Carbon
R-6
885105 1 meg.
0.5
Carbon
MISCELLANEOUS
PART NO.
DESCRIPTION
12A442 6" P.M. Speaker complete with Output Transformer.
12A436
8" P.M. Speaker complete with Output Transformer Cone and Voice Coil Assembly (Specify part number and letters stamped on speaker).
Output Transformer (Specify part number and letters stamped on speaker)
3A303 3A304 3A305 2A360 13X328 10A614 10A615 10A616 10A617
Tube Socket-Octal (8 prong) Molded Phono Motor Socket Phono Socket-Single Pin Tip..... Band Change Switch Line Cord and Plug Assembly Knob (Tuning)
Knob (Volume)
Knob (Tone-R.P.)
Knob (SW -BC)..
R-8 R-9 R-10 R-11
R -12,R-16 R-13 R-14 5R-15 R-17 R-18 R-19
885473 884153 36X357 B85106 B85474 B84333 B84823 40X277 C84271 43X213 D84182
47 K 15 K .S meg.
10ineg. 470 K
33 K 82 K 3 meg. 270 2.0 1800
0.5
Carbon
0.5
Carbon
Volume Control & Switch
0.5
Carbon
0.5
Carbon
0.5
Carbon
0.5
Carbon
Tone Control & Radio 'Phono Switch
1.0
Carbon
0.5
Wire -wound
2.0
Carbon
6X21 20X329
DIAL AND DRIVE ASSEMBLY
Rubber Grommet Cond. Cushion Stud!
Mtg. Gang
Condenser
'-
--
CAPACITORS
-1
47X445 270 mmf
Molded
-2
17A164 5-50 mmf
Trimmer
-3
17A235 2-12 mmf
Trimmer
-4
47X473 47 mmf
Silvered Mica
-5
47X474 360 mmf
Silvered Mica
C -6A, C-68 14A184 Gang Condenser
C-7
B66501 .0005 mf
200 V Tubular
C-8
17A155 350-430 mmf
Trimmer ...........__.........
C-9, C-10 17A109 2.5-35 mmf
Dual Trimmer . ...... ...
C-11
47X472 40 mmf
Silvered Mica ..
C-12, C-18 D66403 .04 mf
400 V Tubular . _. ....__....
C-13
47X466 68 mmf
Molded
C-14
47X481 286 mmf
Silvered Mica _........_
C-15, C-16 Part of T-2 (1st I -F Coil Assem.)
C-19, C-23 47X463 47 mmf
Molded
C-20, C-21
C-22 C-24
C-25 C-26
C-27 C-28 C-29 C -30A C-308
Part of T-3 (2nd 1-F Coil Assem.)
47X471 68 mmf
D64403 .04 mf
400 V
D66502 .005 mf
400 V
D67104 .10 mf
400
D64253 .025 mf
400 V
D66402 .004 mf
400 V
D66103 .01 mf
400 V
40mf
450V t
45X346 40 mf
450 V
Molded Tubular Tubular Tubular Tubular Tubular Tubular
Three Section Electrolytic..
C -30C
C-31 C-32 C-33 C-34 C-35
F66402 47X505
B66503 47X476
D67204
20 mf .004 mf 470 mmf .05 mf 100 mmf .2 mf
25 V y 600 V
200 V
400 V
Tubular Molded Tubular Molded Tubular
26A443
58X676 26A44.4 26X486 19X192 15X163 10X38 28X113 7X199
4X353
Dial Bracket Assembly comolete with Snacers, Diffusers and Dial Background less Dial Glass Dial Glass Idler Bracket Assembly Drive Shaft "C" Washer (for drive shaft) Pointer
Drive Cord Assembly or 50" Cord Drive Cord Tension Spring .. _ . Pilot Light Socket Assembly No. 47 Pilot Light
Escutcheon ._.
Pulleys
TRANSFORMERS AND COILS
T-1
9A1812 "D" Range Antenna Coil Assembly
T-2
9A1814 1st I -F Coil Assembly
T-3 9A1815 2nd 1-F Coil Assembly...._
T-4 26A449. "B" Range Loop Antenna Assembly
T-5 9A1813 "B" and "D" Range Oscillator Coil Assembly
T-6 53X282 117 Volt, 60 Cycle, Standard Power Transformer
T-7
Output Transformer (See Miscellaneous)
SUBSTITUTE PARTS
The following parts are used in some receivers only. Check part numbers on old part before ordering and order part originally used in receiver
*40X282 *25X1539 2A161
Tone Control (Substitute for 40X277) Radio Phono Switch Lever (Use with 40X282) D.P.D.T. Switch (Use with 40X282)..
ON-OFF SWITCH AND VOLUME CONTROL
BAND SWITCH TUNING KNOB
I
TONE CONTROL AND PHONO -RADIO SWITCH
©John F. Rider
www.americanradiohistory.com
1- PAGE 18-16 CONCORD
MODEL
10
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CONCORD RADIO CORP.
CONCORD PAGE 18-17
MODEL 1-611
A
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©John F. Rider
www.americanradiohistory.com
PAGE 18-18 CONCORD
MODEL E51B
CONCORD RADIO CORP.
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MO113A . www.americanradiohistory.com
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CONCORD PAGE 18-19
MODEL E51B
ALIGNMENT
Remove the chassis from the cabinet. Connect tie output meter across the voice coil. Connect the signal generator to the Standard Hazeltine Model 1150 loop and couple loosely to the receiver loop. Set the receiver volume control at maximum.
The tuning condenser plates should be fully meshed when the dial pointer is at the low -frequency index. The signal generator output should be just sufficient to obtain a small deflection on t e output meter.
Short the oscillator grid (12SA) pin 5 to B-). Set the signal generator to )455 KC. Adjust the IF trimmers in the following order: C18, C17, C16, C15. Set the generator and receiver at 1600 KC and remove the short from the oscillator and adjust oscillator trimmer C1L for maximum output. Set the signal generator and receiver at 600 KC and a djust oscillator padder C 12 for maximum output.
Go back to 1600 KC and adjust oscillator trimmer C 14 for maximum output. Return to 600 KC and readjust oscillator padder C 12 for maximum output, rocking the main tuning condenser during this adjustment for maximum output. Set the receiver and signal generator at 1400 KC and adjust the RF trimmer for maximum out-
put. This completes the alignment.
LOOP
LI
L2
BOTTOM VIEW
POINTER SPRING
NOTE' -
TUNING CONDENSER IN MAXIMUM CAPACITY POSITION.
GANG
CONO. SHAFT
3 TURNS OF CORD
DIAL DRIVE SHAFT
©John F. Rider
www.americanradiohistory.com
PAGE 18-20 CONCORD MODEL óE51B
CONCORD RADIO CORP.
SOCKET PIN
12SA7GT 1
CONV.
2
4 ?
5 6
7
8
12SK7GT 1 1-F AMPL. 2
3
f
5 6
7
8
12SQ7GT 1
2
3
5 6
7 8
50L6GT
1
AUDIO
2
OUTPUT
5 6 7 8
35Z5GT
1
2
3
5 6
7 8
20,0002
VTVM
D.V.
0
AC +86 +86 -7.6
0 AC
-0.7
0
AC +86 +86 -6.2
0
AC -0.4
0
AC
0
-0.7
0
+86 AC
+86
0
-0.9
0
-0.7 -0.7
+h)1
AC
0
0
AC 0 -0.4
0
+86 AC
+86
0
-0.6
0
-0.5 -0.5 +42
AC
0
0
AC +115 +86
o
-0.7 AC
+6
0
AC +115 +86
o
-0.5 AC
+6
AC AC
AC
-
AC +120
-
AC AC
AC
AC +120
1,0002
P.V.
0
AC +86 +86
-3
0 AC -0.2
0 AC 0
-0.2
0
+86 AC
+86
0
-0.3
0 -0.2 -0.2
+15 AC
0
0
AC +115 +86
o
-0.2 AC
+6
-
AC AC
AC
AC +120
RESISTANCE
24OK 352 30K 3oK 27K
152
152 2MEGS.
240K
3052 0
2MEGS.
0
óK 402 30K
240K 5MEGS.
0
650K 650K 500K
152
0
0
902 28K 3oK 450K 6 OK
02 1502
-
1202 1152
1159
902 28K
All voltage and resistance measurements were made with respect
to B -
With a line voltage of 116 V. A.C.
Resistance from B- to chassis ground=240K
©John F. Rider
www.americanradiohistory.com
CORONET RADIO AND TELEV.
CORONET PAGE 18-1
MODEL 1701X ARISTA
v o o o
O O
m0
"4
u
in
e-nOin
U C?
v0095'
u h
tn
o r X
0U 1
R`Ì
I
9.; -se-9/
h
U
u O
O O
v 000 i f
4F r - llpi
------- L- v00G ' vOSG
1
Óh
N'1
<cc
1O
O
CI
of A
N
ou1
©John F. Rider
www.americanradiohistory.com
PAGE 18-2 CORONET
MODEL 1701X ARISTA
CLARI-SKEMATIX Registered Trademark
CORONET RADIO AND TELEV.
{
+
co
0 0 o
Ñ
N
Lr
0 0 0
--- ;-áó
II
-i
z
i-om 3OZOz 2C) I- 'Q I- o0WQ
_
©John F. Rider
II
0 o 0
www.americanradiohistory.com
CORONET RADIO AND TELEV.
CORONET, PAGE 18-3
MODEL 1701X ARISTA
ALICN"ENT OF CORONET MODEL 1701X I.F. ALIGnMENT
Connect on output meter across the voice coil. Connect the signal generator to pin 8 of the 12SA7GT, through a 0.01 mf capacitor. Tune the signal generator to 455 KC, and fully mesh the main tuning capacitor of the receiver. Keep the receiver volume control at maximum and the output of the signal generator sufficient to give a readable deflection on the output meter. Adjust for maximum IF Trimmers Cil, C10, C9, and C8.
R.F. - Ose. Adjustments.
The short wave band 3 should be tuned first, short wave band 2, second, and Broadcast band 1 last.
Turn the band switch clockwise to position 3. Keep the same setup used for I.F. alignment; and apply a 16 mc. signal to antenna coupling capacitor C12, located on top rear of chassis. Tune the receiver to 16 mc. and adjust for maximum oscillator trimmer C2. Adjust antenna trimmer C7 for maximum ouptut at 16 mc. Turn the band switch counter clockwise to position 2. This band has no trimmer for the antenna coil, and since Oscillator trimmer C2 is used for both band 3 and 2, the calibration of band 2 is dependent on the calibration of band.3; And vice versa. Tune the signal generator and receiver to 5 mc., and check the calibration of band 2. It should be fairly accurate. If it is off to any great extent, Oscillator trimmer C2 can be used to balance the descrepancy in frequency between band 3 and 2. Turn the band switch ccunter clockwise to position 1 broadcast band. Tune the signal generator and receiver to 1560 KC. Adjust oscillator trimmer C5 for maximum. Tune the signal gnnerator and receiver to 600 KC and adjust low frequency padder C6 for maximum while rocking the main tuning capacitor. Tune the signal generator and receiver to 1560 KC and adjust antenna trimmer C4 for maximum output. Then tune the signal generator and receiver to 600 KC and adjust tuning slug L1 for maximum output. The entire prcceedure for the broadcast band should be repeated for best results.
PULLEY
DIAL POINTER
DIAL DRIVE DRUM
5MC 5/16"
16 MC 5 516"
CAPACITOR
1560KC 5 3/32"
SHAFT
600KC 31/32"
1
550KC 2 /16
LOW FREQUENCY INDEX
TUNING CONDENSER IN MAXIMUM CAPACITY
POSITION
TUNING
SHAFT`S
DIAL DRIVE ASSEMBL Y -FRONT VIEW
2 Z TURNS
©John F. Rider
www.americanradiohistory.com
PAGE 18-4 CORONET.
MODEL 1701X ARISTA
CORONET RADIO AND TELEV
ANT. LEAD
/BROADCAST BAND 1
OSC. COIL
R R8R10
DIAL DRIVE -e.
SHAFT
rr k--BAND SWITCH
-- BAND S W ITC H SHAFT
SPEAKER
R13-#
TONE CONT.
f VOL. -CON T. SHAFT
TONE
4-CONT. SHAFT
ANT.LEAD
(4:5L607)
AUDIO UT PUT
z
2ND.I.F.
TRANSF.
C11 C10
125K7 2N/ D.I.F. AMPL.
1ST IF. TRANSF.
m m
C9 C8
DET.,A
iST. AUDIO
12SQ7
ELECTROLYTIC
C26 A,B
AUDIO
OTRUTAPNUSTF.
12SA7GT
(CONVI
'- PILOT LAMP
AND SOCKET
125 K7
1ST I.F. AM PL.
i BAND BROADCAST
I' o BAND ANT.COIL
C4
B.C. SAND
(1
ANT. TRIMMER
C3 R.F.
r
C 1 OSC.
I
BAND 2,3 ANT. COIL
CS B.C. BAND OSC. TRIMMER
6
C2
B.C. BAND
LOW FREQ.
PADDER
u
DIAL POINTER
DIAL BACKPLATE SPEAKER
TOP FRONT VIEW
1
Cl SHORTWAVE BAND 3
ANT. TRIMMER
©John F. Rider
www.americanradiohistory.com
TUBE
12SA7GT CONY.
CORONET PAGE 18-5
CORONET RADIO AND TELEV.
MODEL 1701X
AR ISTA
PIN
VTVM
20,000 OHM 1,000 OHM RESISTANCE
P.V.
P.V.
1
0
2
AC
3
+90
4
+90
5
BAND,1, BAND,1, BAND,2, IAND,2, BAND 3, BAND 3,
550 KC. 1500 KC. 1600 KC. 7 mc. 6 mc. 22 mc.
-7 -9.5 -4 -7 -3 -7.5
6
0
7
0
8
-0.5
0 AC
+90 +90
-5 -9 -3 -5 -1 -2.5
0 0 -0.3
0 AC +90 +90
-3.5 -5 -1.5 -2.5 -0.2 -0.2
0 0 -0.1
0
12 OHM OVER 1 MEG OVER 1 MEG
20K 2QK 20K 20K 20K 20K 0.6 OHM 24 OHM 2.6 MEG.
12SK7
1
1st I.F. Ampl. 2
3
4
5
6
7
8
0 AC 0 -0.5 0 +90 AC +30
0 AC 0 -0.3
0
+90 AC
+30
0 AC 0 -0.1
0 +90
AC +30
0 38 OHM 0 2.6 MSG. 0 OVER 1 MEG. 24 OHM OVER 1 MEG.
12SK7
1
2nd I.F. Ampl. 2
3
4
5
6
7
8
0 AC +1.5 -0.5 +1.5 +90 AC +90
0 AC +1.5 -0.3 +1.5 +90 AC +90
0 Ab +1.5 -0.1 +1.5 +90 AC +90
0 38 OHM 145 OHM 3 MEG. 145 OHM OVER 1 MEG. 50 OHM OVER 1 MEG.
12SZ7
1
DET. A.Y.C.
2
1st AUDIO
3
4
5
6
7
8
0
-0.6 0
-0.5 -0.5 +60 AC
0
0
-0.5
0
-0.3 -0.3 +58 AC
0
0 -0.2
0 -0.1 -0.1 +24 AC 0
0 10 MEG. 0
500K 500K OVER 1 MEG. 12 OHM 0
35L6GT
1
AUDIO
2
OUTPUT
3
4
5
6
7
8
+5 AC +105 +112 0 0 AC +5
+5 AC
+105 +112
0 0 AC +5
+5 AC +105 +112 0 0 AC +5
180 OHM 85 OHM OV.:R 1 MEG. OVER 1 MEG. 575 K
0
50 OHM 180 OHM
35Z5
1
RECT
2
+110 AC
+110 AC
+110 AC
OVER 1 MEG. 115 OHM
3
AC
AC
AC
112 OHM
4
--
--
--
--
5
AC
AC
AC
112 OHM
6
--
--
--
--
7
AC
AC
AC
85 OHM
8
+120
+120
+120
OVER 1 MEG.
All voltage and resistance measurements made with respect to chassis ground and with a line voltage of 116 V.A.C. Band switch in broadcast position.
©John F. Rider
www.americanradiohistory.com
3
www.americanradiohistory.com
t
U
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-1
MODEL 9-101
3
LN5
r-
ISI 1-F TRANS.
I250 I-F TRANS.
0
1
ITó ó0
s
ILN 5
YO¡n'S
000
IL84
:O°r
DO
l' T.03
1 -
56.
TWANG CONDENSEN GANG IN THE CLOSED POSITION
LENGTH Or DIAL CORD 01,4 FAO. LOOP TO LOOP
NEST TC CHASSIS
4 TUANS
,z7iÿAEr c
EN,
4ÓN T.
33 3300 A
q O
32
3 1000 S NC. I. F. FREQUENCY
SCHEMATIC DIAGRAM
NUM
,e1
A"f AItANATE .51.5
CONVERTER
1.4
I -F. AMPLIFIER
-1.4
OUTPUT
82
82
41.
82
82
-O
OSC. GRID VOLTAGE
R -F. AMPLIFIER
-1.4 82
GANG OPEN -II VOLTS GANG CLOSED -8 VOLTS
41
O
O
DE T.- AVG.- I ST A -F. AMPL.
W. J.
Olei a%o
1.4
/4
57
VS E1
cs
NOTES: I. BOTTOM VIEW OF TUBE SOCKETS 2. VOLTAGES MEASURED FROM SOCKET LUG
TO CHASSIS WITH AN ELECTRONIC vOLTHETER
3. W.J.' WIRING JUNCTION
4. M.C. NO CONNECTION
5. BATTERY PACK VOLTAGE 'A" N1.4VOLTS."B"N90 VOLTS 6. SOCKET VOLTAGE TOLERANCE IO T.
SOCKET VOLTAGE CHART
©John F. Rider
www.americanradiohistory.com
PAGE 18-2 CROSLEY
rODEL é -101
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
Turn the tuning condenser to the completely closed position against the stop and set the dial pointer
to the reference line at the end of the dial scale.
(1.
II
2.
Connect
the
output
meter across
the
speaker voice
coil.
3. The r.f. signal input from the signal generator should be fed to the receiver as indicated in the alignment chart. Connect the low side (ground) of the signal generator to the chassis.
4. Turn the tone control to its treble position.
5. Turn the volume control on full and adjust the signal generator output to produce approximately mid scale deflection of the output meter, but maintain signal generator output as low as possible to prevent AVC action in the receiver.
ALIGNMENT CHART
Alignment adjustment locations are shown on page 1, Chassis, Rear View.
Alignment
Signal Generator Output
Sequence Frequency In Series
in kc.
With
To
Position of Adjust
Dial
for
Pointer or Maximum
Var. Cond. Output
Remarks
1
455
.01 mfd. R.F. Grid Closed
A & B
Preset to 1/4 turn from the
2
600
.01 mfd. R.F. Grid 600 kc.
C
closed position and "E" tG 1/2
turn from its closed position.
3
1620
.01 mfd.
Ant.
Open
E
Tune to
4
1400
200 mmf.
Ant.
Signal
D& F
5
600
200 mmf.
Ant.
Tune to
C
Rock Gang.
Signal
6
Repeat steps 3, 4, and 5 until circuits align and dial tracks.
7
Conclude alignment by repeating step 4.
TUBE COMPLEMENT:,
Type 1LA6 1LN5
Function Mixer I. F. Amplifier,
1LN5 1LH4
1LB4
R. F. Amplifier Detector, AVC
ist A. F. Amplifier
A. F. Power Output
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-3
MODEL 9-101
TRANS. 5 KC.
ILH1
©ANT. TRIMMER
1400 KC.
FREQUENCY RANGE: 540 to 1600 kc. OSC.TRIMMER
1620 KC.
j INTERMEDIATE
FREQUENCY:
455
kc.
©R
TRIMMER
00I C.
©OSG.IND.ADJUST
600 KG.
BATTERY PLUG a CABLE EXTERNAL ANT,
GROUND
POWER SUPPLY: Crosley "A -B" Battery Pack,
CHASSIS REAR VIEW
CR69.
TYPE: Five -tube, single -band superheterodyne.
VOLTAGE RATING: 11/2 v. "A"; 90 v. "B".
POWER OUTPUT: 175 mw. maximum.
For satisfactory operation it is necessary that an antenna and ground be connected to this receiver.
REPLACEMENT PARTS LIST-MODEL 9-101
Figures in first column correspond to figures in Schematic Diagram.
Item No.
Part No.
Description
1 AW-142997 Coil, Antenna
2 AW-142993 Coil, R.F.
3 AC -143013
Transformer, 1st I.F.
4 AC -143034
Transformer, 2nd I.F.
5 AW-142975 Coil, Oscillator
6A AC -137073-20 Condenser, Variable 1 Three section
6B
Condenser, Variable J} and Pulley
6C
Condenser, Variable Assembly
6D Part of Item 6A Condenser, Trimmer
6E Part of Item 6B Condenser, Trimmer
6F Part of Item 6C Condenser, Trimmer
6G Part of Item 6C Condenser, Trimmer
7 W-137398-4 Condenser, 2.2 mmf., 500 v.
8 C-137727-47 Condenser, 10 mmf., 500 v., ceramic
9 C-137727-1
Condenser, 100 mmf., 300 v., ceramic
10 C-137727-1 Condenser, 100 mmf., 300 v., ceramic
11 39001-76
Condenser, .003 mfd., 600 v., paper
12 39001-1
Condenser, .0001 mfd., 600 v., paper
13 39001-76
Condenser, .003 mfd., 600 v., paper
14 39001-7
Condenser, .001 mfd., 600 v., paper
15 39001-76
Condenser, .003 mfd., 600 v., paper
16 39001-17
Condenser, .05 mfd., 600 v., paper
17 39001-17
Condenser, .05 mfd., 600 v., paper
18 39358-13
Condenser, 16 mfd., 150 v., Elect.
19 39373-80
Resistor, 220,000 ohm, 1/2 w.
20 39373-71
Resistor, 68,000 ohm, 1/2 w.
21 39373-107
Resistor, 10 megohm, 1/e w.
22 39373-102
Resistor, 4.7 megohm, 1 w.
23 39373-69
Resistor, 56,000 ohm, 1/2 w.
Item No.
Part No.
24 39373-102
25 39373-92 26 39373-33
27 39368-11 28A 39368-14 28B 39369-2 29 B-143018
31 143688 32 B-130493 33 39373-44
R-138573-5 C-143245 W-134055 W-143041
C-39012-81 B-138574-4 W-46065 W-132366-2 B-143115 W-137939-1 W-51071 B-135075-5
39441 W-51752 B-138649
W-138568 AC -138443-3 W-134916
Description
/ Resistor, 4.7 megohm, w.
Resistor, 1 megohm, 1/2 w. Resistor, 1000 ohm, 1/2 w. Control, Tone (2 megohm) Control, Volume (1 megohm) Switch, Power Transformer, Output Speaker Cable and Plug Assy., Battery Resistor, 3300 ohm, 1/2 w. Cabinet Dial Glass Grommet, Var. Cond. Mtg. Grommet, Battery Cable Iron Core, Osc. Coil Knob Mounting (Rubber), Speaker Nut, Locking (Ose. Iron Core) Pointer, Dial Pulley, Drive Cord Idler Ring, Retaining (Drive Shaft) Shaft, Dial Drive Socket, Tube Spring, Dial Drive Cord Strip, Dial Glass Strip, Dial Pointer Support and Pulley Assy., Dial Washer, Spring (Drive Shaft)
©John F. Rider
www.americanradiohistory.com
PAGE 18-4 CROSLEY
MODELS 9-102, 9-ll8W
CROSLEY DIV. AVCO MFG. CORP.
101 IF TRANS.
6.
eon
6
LOOP
20 !!NEG
50
r1 1 O OO-r
Ii
1L--
i96
? e!N
AAMF Ln
ç v
47
I9
21400
IYEG
9
! O
Ó
131 1.5
Ies VO__LyF1E L
p1
09 `.001
rr
T2NAñ75
PAI
101MEG
07A
33 .005
2200
53
at
1220
25
-
30
32 »=.005
II
17
D1
13300
2 ONEG
1S2
PLACEMENT Of Del GCSE 00159 TUNING CONDENSER GANG IN THE CLOSED POSITION, LENGTH Cf DIAL CORO 516''4
FRON LOOP TO LOOP
a55 KC LI
!3 I500
30MyaSOLa
OUTPUT THAIS.
ººººº
VE TURNS
O
le
el. e5. 6 3 v
R. F. AMPLIFIER
'63
0
©John F. Rider
I. F. AIIPLIFIER
'6.3
o
176
90
POWER OITPI T
195
235
0
NET.-AVC.-Mat. A.F.Al PL.
'6.3
0
93
NOTES:
I.Botto' Vient. Ot Sockets 23. aaore Voltage Fro, Socket LIC 'n
-6(g.13.11$ us)
3.Yoltaªs Measured Witt, An Electronic
Voltmeter
N. M.J. Wir inç ,ANMrt Mon.
5. N.C. llo Connection. 6. ' A.C. Voltage 7. Voltage Tolerance, 101:
8. Une Voltage 117 V, 60 ni A.C.
POWER TRANSFORMER
`et'RECTIFIER
ge©3`
oío.A 275
275
SOCKET VOLTAGE CHART
www.americanradiohistory.com
9-102,
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-5
MODELS 9-102,
9-118w
9-118W
ALIGNMENT PROCEDURE
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer to the reference line at the low frequency end of the dial scale.
2. Turn the tone control to the treble (clockwise) position. 3. Connect the output meter across the speaker voice coil.
4. The r. f. signal input from the, signal generator should be connected through a condenser as indicated
in the alignment chart. Connect the signal generator ground to the receiver chassis.
;I
5. Turn the volume control on full and adjust the signal generator output to produce approximately midscale deflection of the output meter, but maintain signal generator output as low as possible to pre-
vent AVC action in the receiver.
6. Loop antenna must remain connected at all times.
Alignment Sequence
ALIGNMENT CHART
Alignment adjustments are shown in "CHASSIS, SIDE VIEW,"
Signal Generator Output
Frequency
In Series
To
in KC
with
Position of Tuning Dial
or
Var. Cond.
Adjust for Maximum Output
1
455
.05 mfd.
Pin 6 7Q7
open
A & B
2
Top
1620
4 mmf.
Ant.
Clip
open 1620
C
Top
3
1400
4 mmf.
Ant.
1400
D
Clip
Top
4
1400
4 mmf.
Ant.
1400
E
Clip
5
Top
1400
4mmf.
Ant.
Clip
1400
Rock var. cond. and repeat 3 & 4
©John F. Rider
www.americanradiohistory.com
PAGE 18-6 CROSLEY
M D S 9-102,
9-118w
CROSLEY DIV. AVCO MFG. CORP.
725
/ iurr. wmmllt
NAL ANT LO(ib.
N-ROUNo
CHASSIS, SIDE VIEW
TYPE: Six -tube, single band, superheterodyne.
FREQUENCY RANGE: 540 to 1600 kc.
INTERMEDIATE FREQUENCY: 455 kc.
POWER SUPPLY: 60 cycle a. c. only
VOLTAGE RATING: 105-125 volts.
POWER CONSUMPTION: 50 watts maximum
POWER OUTPUT: 2.5 watts maximum TUBE COMPLEMENT:
TYPE
FUNCTION
7A7 7Q7 7A7 7B6
7B5 5AZ4
R. F. Amplifier Converter I. F. Amplifier Detector, AVC, 1st A. F. Amplifier A. F. Power Output Rectifier
Item No.
Part No.
1 AW-137800 2 AW-137724 3 AC -137933
4 AC -137934 5 AW-138546 6 W-48858
7 C-132300-1 9 B-135102 10 B-138131-4 11 39368-18
39370-2
39369-1 13 C-13$246
14 39373-23 15 39373-60 16 39373-67 17 39373-84 18 39373-87 19 39373-92 20 39373-97 21 39373-107 22 39373-40 23 39372-7 24 39373-165 25 39373-62 27 39373-97 28 39373-97 29 39373-60 32 39001-11 33 39001-11
34 39001-13 35 39001-13 36 39001-17 37 39001-17 39 39001-17 40 39001-73
REPLACEMENT PARTS LIST-MODELS: 9-102, 9-118W
Figures in first column correspond to figures in Schematic Diagram
Description
Coil, R. F. Coil, Osc.
Transformer, 1st I. F. Transformer, 2nd I. F. Coil, Antenna Loading Bulb (Dial), Type 47, 6.3 v., .15 amp. Cable & Plug Assy., Power Transformer, Power Transformer, Output Control, Volume Shaft, Volume Control (Knurled) Switch, Power Speaker Resistor, 330 ohm, 1/2 w. Resistor, 22,000 ohms, 1/2 w. Resistor, 47,000 ohms, % w. Resistor, 330,000 ohms, % w. Resistor, 470,000 ohms, 1/z w. Resistor, 1.0 megohm, 1/z w. Resistor, 2.2 megohms, 1/2 w. Resistor, 10 megohms, 1/2 w. Resistor, 2,200 ohms, 1 w. Resistor, 1,500 ohms, 10 w. Resistor, 12,000 ohms, 1 w. Resistor, 27,000 ohms, 1/z w. Resistor. 2.2 megohm, 1/2 w. Resistor, 2.2 megohm, 1/2 w. Resistor, 22,000 ohms, 1/2 w. Condenser, .005 mfd., 600 v., paper Condenser, .005 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .05 mfd., 600 v., paper Condenser, .05 mfd., 600 v., paper Condenser, .05 mfd., 600 v., paper Condenser, .00025 mfd., 600 v., paper
Item No.
Part No.
41 39001-7 42 39001-13 44A B-136596
44B 45 W-132267-1
46 AB -138584
47 AC -138464 48A AC -138595-2
48B
48C
49 39001-7 51 C-137727-52 52 39368-11 53 39373-67 54 W-48858
C-137750 R-138573-1 R-138573-2 D-143931
AC -143143 W-134055 B-138574-5 B-138574-2 B-143115
W-137939-1 W-51071 39220-36CP B-135075-5 W-46065 D-136565-16
39441 W-51752 W-138568 W-132124 -5 W-134916
Description Condenser .001 mfd., 600 v., paper Condenser, .01 mfd., 600 v. paper Condenser, 50 mfd., 300 v. Two Sect. Condenser, 30 mfd., 300 v. elect.filter Condenser, Trimmer Terminal Board Loop Antenna Assy. Condenser, Variable l Condenser, Variable J} Three Sect. Condenser, Variable Condenser, .001 mfd., 600 v., paper Condenser, 12 mmf., 500 v., ceramic Control, Tone Resistor, 47,000 ohms, 1/2 w. Bulb (Dial), Type 47, 6.3 v., .15 amp. Back, Cabinet Cabinet (9-102) Cabinet (9-118W) Dial Dial Plate Assy. Grommet, Variable Condenser Knob (9-102) Knob (9-118W) Pointer, Dial Pulley, Idler Ring, Retaining (Dial Drive Shaft) Screw, Chassis Mtg. Shaft, Drive Shock Mount, Speaker Socket, Dial Light Socket, Tube Spring, Dial Drive Strip, Pointer Trimount Stud, Cabinet Back Washer, Spring (Dial Drive Shaft)
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-7
MODELS 9-103,
9-10 W
CD
.o
L':
m
N_
K
o
g
o
o
m
m
u
. _
IF t1n
o
o
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i
0
©John F. Rider
www.americanradiohistory.com
PAGE 18-8 CROSLEY
MODELS 9 -103 , 9-104W
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer to the reference notch at the low frequency end of the dial background.
2. Turn the tone control to the treble (clockwise) position.
3. Connect the output meter across the speaker voice coil.
B- 4. The r. f. signal input from the signal generator should be connected through a condenser as indicated
in the alignment chart. Connect the signal generator ground through á 0.1 mfd. condenser to
(pin 2 on 6BJ6 tube socket).
'I
5. Turn the volume control on full and adjust the signal generator output to produce approximately midscale deflection of the output meter, but maintain signal generator output as low as possible to prevent AVC action in the receiver.
6. Loop antenna must remain connected at all times.
ALIGNMENT NOTES
1. Turn I. F. trap core "A" counter-clockwise to stop.
2. To perform step 5 and 6, attachthe chassis bottom to chassis and move loop antenna as far away
from chassis as the, loop brackets will permit. 3. Adjust for maximum output.
Alignment Sequence
ALIGNMENT CHART
Alignment adjustments are shown in "CHASSIS VIEW,"
Signal Generator Output
Frequency In Series
To
in KC
with
Position of Tuning Dial
or Var. Cond.
Adjust
1
A
2
455
200 mmf.
Ant. Clip
open
B
3
455
200 mmf.
Ant. Clip
open
C
4
455
200 mmf.
Ant. Clip
open
A
5
1620
200 mmf.
Ant. Clip
open
D
6
1400
200 mmf.
Ant. Clip
Tune in Signal
E
Remarks
See Note 1 See Note 3 See Note 3
Adj. for min. signal See Note 2 and 3 See Note 2 and 3
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAC'aE 18-9
MODELS 9-103 ,
9-104WW
12 AV6
5085 ADJUST TOP 8
B
BOTTOM 455KC.
6BJ6 ADJUST T P 8 BOTTOM 455KC.
0 IF TRAP ADJST. 455 KC.
fihi1 f
1);
>r
0 OSC. TRIMMER 1620 KC.
EXTERNAL ANT. CLIP FRONT SIDE OF LOOP SUPPORT.
ANT. TRIMMER 1400 KC.
CHASSIS, VIEW
TYPE: Six -tube, single band, superheterodyne.
FREQUENCY RANGE: 540 to 1600 kc.
INTERMEDIATE FREQUENCY: 455 kc.
POWER SUPPLY: a.c.-d.c.
VOLTAGE RATING: 105-125 volts.
POWER CONSUMPTION: 30 watts nominal.
POWER OUTPUT: 1.5 watts maximum. TUBE COMPLEMENT:
TYPE 6BJ6 12BE6 6BJ6 12AV6
50B5 35W4
FUNCTION
R. F. Amplifier Converter I. F. Amplifier Detector, AVC 1st A. F. Amplifier A. F. Power Output Rectifier
REPLACEMENT PARTS LIST
Figures in first column correspond to figures in Schematic Diagram
Item No.
Part No.
Description
Item No.
Part No.
1 AW-143474 Coil, I.F. Trap
32
2 AW-144325
3 AB -143678 4 AB-143679
Coil, Osc.
Transformer, 1st I.F. Transformer, 2nd I.F.
33 34
5A AC -137073-24 Condenser, Variable 1 Two
35
5B
Part of Item 5
Condenser, Variable J Sect. Pulley
36 37
6 B-137498-12 Condenser, 30 mmf., 500 v., mica
38
7 B-137498-38 Condenser, 220 mmf., 500 v., mica
39
8 39001-80
Condenser, .02 mfd., 600 v., paper
40
9 39001-17
Condenser, .05 rimfd., 600 v., paper
10 39001-19
Condenser, .1 mfd., 600 v., paper
11 39001-19
Condenser, .1 mfd., 600 v., paper
12 C-137727-66 Condenser, 18 mmf., 500 v., ceramic
13 B-142951-2 Filter Assy., Diode
14 C-137727-21 Condenser, 50 mmf., 500 v., ceramic
15 39001-76
Condenser, .003 mfd., 600 v., paper
16 B-143686-3 Condenser, 100 mmf., 500 v., ceramic
17 39001-74
Condenser, .002 mfd., 600 v., paper
18 39001-74
Condenser, .002 mfd., 600 v., paper
19 39001-17
Condenser, .05 mid., 600 v.,
20A B-143680
Condenser, 100 mfd., 150 v.Two Sect.
20B
Condenser, 30 mfd., 150 v. Elect. Fil.
21 39373-47
Resistor, 4,700 ohms, 1/z w.
22 39373-80
Resistor, 220,000 ohms, 1/z w.
23 39373-60
Resistor, 22,000 ohms, '/2 w.
24 39373-97
Resistor, 2.2 megohms, 1/z w.
26 39373-107
Resistor, 10 megohms, 1/z w.
27 39373-87
Resisor, 470,000 ohms, % w.
28 39373-14
Resistor, 100 ohms, 1/z w.
29 39373-80
Resistor, 220,000 ohms, 1/1 w.
30 39373-74
Resistor, 100,000 ohms, 1/z w.
31 39373-87
Resistor, 470,000 ohms, 1/s w.
39373-144 39373-119
39368-14 39369-1 B-143494 B-137723
136420
AC -143698 C-132300-1 W-48858 R-143113-1 R-143113-2 W-131154-1
C-143884 B-143907 W-143514 AW-143791
39012-87 39012-89 39012-89 B-138576-8 B-138576-7
143289 W-137939-2 39156-49CP B-135075-2 W-46065 D-136565-25 W-51752
C-135038-12 C-135038-15 W-134916
Description Resistor, 1,200 ohms, 1 w. Resistor, 47 ohms, 1Fi w. Control, Volume, 1.0 meg. Switch, Power Switch, Tone Transformer, Audio Speaker Loop Antenna Assy. Cable & Plug Assy., Power Bulb (Dial) Type 47, 6.3 v., .15 amp. Cabinet (9-103) Cabinet (9-104W) Cotter, External Dial Escutcheon Foot, Rubber Grille Cloth & Baffle Assy. Iron Core, I.F. Trap Iron Core, 1st I.F. Iron Core, 2nd I.F. Knob (9-103) Knob (9-104W) Pointer, Dial Pulley, Idler Screw, Chassis Mtg. Shaft, Drive Shock Mount, Variable Cond. Socket, Dial Light Spring, Dial Drive Terminal Strip, Two Lug Terminal Strip, Three Lug Washer, Dial Drive
©John F. Rider
www.americanradiohistory.com
PAGE 18-10 CROSLEY
III I-F.
TRANS.
2sD I -F. TRANS.
3
IA5GT
D
- YYOR
pY
13 A
100 NNE.
OSC. COIL
IF 4SSNG.
N. 1000. ALL CAPACITANCE VALUES IN IIICNOFANAOS UNLESS OTMENNISE NOTED.
PLAGNENT OF DIAL DRIVE GOAD TUNING CONDENSER GANG IN THE CLOSED POSITION. LENOTN OF DIAL CORD YF( INGNES FRON LOOP TO LOOP.
2IIdl-F TRAN n
455 KC.
NEAT TO CHASSIS
MODEL 9-117
IA7 GT
TUB SN4E
Speaker mounted on cabinet CHASSIS, TOP VIEW
BATTERY PLUG B CABLE GROUND
EXTERNAL ANTENNA
SOCKET VOLTAGE CHART
NOTES: I. BOTTOM VIEW OF TUBE SOCKETS. 2. VOLTAGES MEASURED FROM SOCKET
LUG TO CHASSIS WITH AN ELECTRONIC VOLTMETER. 3.W.J'WIRING JUNCTION.
OUTPUT
4. N.C- NO CONNECTION.
5.BATTERY PACK VOLT-
AGE AN=I.4V. SIB=90 V.
6.SOCKET VOLTAGE TOLERANCE 10%.
DET.-AVC.& 12. A-F. AMPLIFIER
I -F. AMPLIFIER
W.J.
85
O
OSCILLATOR GRID VOLTS
GANG OPEN -9 VOLTS
GANG CLOSED- VOLTS
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
CROSLEY PAGE 18-11
MODEL 9-117
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer in a horizontal position.
2. Connect the output meter across the speaker voice coil.
3. The r.f. signal input from the signal generator should be connected to the antenna terminal as indicated in the alignment chart. Connect the low side (ground) of the signal generator to the chassis.
4. Turn the volume control on full and the tone control to treble. Adjust the signal generator output to produce approximately mid-scale deflection of the output meter, but maintain signal generator output as low as possible to prevent AVC action in the receiver.
ALIGNMENT CHART
Signal Generator Output
Position of
Alignment
Sequence
Frequency
In Series
in kc.
with
To
Tuning Dial
Adjust for Maximum Output
1
455
200 mmf.
Ant.
540
A& B
2
1620
200 mmf.
Ant.
1620
C
3
1400
200 mmf.
Ant.
1400
D
TYPE: Four-tube, single -band superheterodyne. FREQUENCY RANGE: 540 to 1600 kc. INTERMEDIATE FREQUENCY: 455 kc. POWER SUPPLY: Crosley "A -B" Battery Pack,
CR69.
VOLTAGE RATING: 11/2 v. "A"; 90 v. "B". POWER OUTPUT: 150 mw. maximum.
TUBE COMPLEMENT:
TYPE
FiJNCTION
1A7GT/G 1N5GT/G 1H5GT/G
Mixer I.F. Amplifier Detector, AVC, 1st A.F. Amplifier
1A5GT/G
A.F. Power Output
For satisfactory operation it is necessary that an antenna and ground be connected to this receiver.
Item No.
Part No.
Description
Item No.
Part No.
Description
1 AW-142997 2 AW-134348 3 AW-134349 4 AW-143261 5A B-143204
5B
5C Part of Item 6A 5D Part of Item 5B
6 39001-76 7 C-137727-1
8 39001-74 9 39001-17
10 39001-80 11 39001-76 12 39001-7 13 137727-1 14 B-143027
15 39373-80 16 39373-102 17 39373-107
18 39373-77 19 39373-44 20 39373-102 21 39373-92 22 39373-97 23 39373-32
Coil. Antenna
Transformer, lst I.F.
Transformer, 2nd I.F.
Coil, Oscillator
Condenser, Variable Condenser, Variable J
Two Section
Condenser, Trimmer
Condenser, Trimmer
Condenser, .003 mfd., 60« v., Paper
Condenser, 100 - -nf., 300 v., Ceramic
Condenser, .002 mfd., 600 v., Paper
Condenser,.05 mfd., 600 v., Paper
Condenser, .02 mfd., 600 v., Paper
Condenser, .003 mfd., 600 v., Paper
Condenser, .001 mfd., 600 v., Paper
Condenser, 100 mmf., 300 v., Ceramic
Condenser, 15 mfd., 100 v., Elect. Filter
Resistor, 220,000 ohms, 1fi w.
Resistor, 4.7 megohm, % w.
Resistor, 10.0 megohm, s w.
Resistor, 150,000 ohm, % w.
Resistor, 3300 ohm, % w.
Resistor, 4.7 megohm, '/2 w.
Resistor, 1.0 megohm, lih w.
Resistor, 2.2 megohm, h w.
Resistor, 820 ohm, 3 w.
24 39373-67 25A 39368-14 25B 39369-2 26 B-138131-6 27 AD -139631 28 B-130493 29 W-143207
AC -143274
R-143226 W-134667
AB -143234 W-143290 B -138576-4B
B-132258 W-45580 B-143252
W-51071 39296-29CP
W-143206 G-39204 W-51752 W-136630 W-132124 W-134916
CR -69
Resistor, 47,000 ohm, ßií w. Control, Volume (1.0 megohm) Switch, Power Transformer, Output Speaker Cable & Plug Assy., Battery Switch, Tone Back Assy., Cabinet Cabinet Clip, Dial Pointer Dial & Support Assy. Grille Cloth Knob Lens, Dial Mounting Rubber, Var. Cond. Mtg. Pointer, Dial Ring, Retaining (Dial Drive Shaft) Screw, Chassis Mtg. Shaft, Dial Drive Socket, Tube Spring, Dial Drive Cord Stud, Trimount (Dial Lens Mtg.) Stud, Trimount (Cabinet Back) Washer, Spring (Dial Drive Shaft)
"A -B" Battery Pack
©John F. Rider
www.americanradiohistory.com
PAGE 18-12 CROSLEY
MODELS 9 -119,.
9-120W
CROSLE? DIV. AVCO MFG. CORP.
---j---
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{
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ol á .
ryq.
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,
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010000,
*--{ f
.1f-5
o
z1123
\ \
B
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t
'{ vVro P`w`o ^"-
U100
\400010,1000 1(', S
/
\ \
/
// -
.../
©John F. Rider
t0 M
U Ó I
ómf>z3u 4/3-WOZZ
.
U
. V
O
Z
eih10¡:
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
CROSLEY PAGE 18-13
MODELS 9-119,
9-120W
1. Connect an output meter across the speaker voice coil.
2. The r.f. signal input from the signal generator should be connected to the ,high side of loop antenna.
B- Connect the signal generator ground through a 0.1 mfd. condenser to (pin 2 on 12BA6 tube socket).
3. Turn the volume control on full and adjust the signal generator output to produce approximately midscale deflection of the output meter, but maintain signal generator output. as low as possible to prevent AVC action in the receiver.
ALIGNMENT CHART
Alignment Sequence
1
2
Signal Generator Output
Frequency
In Series
To
in kc.
with
455
200 mmf.
High Side of Loop
1620
*Radiated to Loop
Position of Dial Pointer
1620
1620
Adjust for Maximum Output
A
B
3
1400
'Radiated to Loop
1400
C
* Place signal generator output lead near the loop antenna.
/r
12846
'N
'¡ryry\
111M1111
"ww
'mini
1U11414 II a116NMl"h
7 0p
I sil. F.
TRAN
tniiiiini
/ADJUST SLUG
I' ABTTTOO,IP II %..2
TRANSFORMER
..HI 3H SIDE LOOP
i e,
When using direct current it may be necessary to reverse the position of the power plug in the electric outlet for correct polarity.
Reversing the position of the power plug when alternating current is used may reduce hum.
Under no circumstances should a ground be connected to this receiver.
O\ OSC. TRIMMER
ANT. TRIMME
1620 KC.
1400KC
CHASSIS, TOP VIEW
1 139919 2 139873 3 39369-1 4 142769 5 138459 7 39373-60 8 39373-14 9 39373-161 10 39373-100 11 39373-67
12 39373-144 13 39373-107 14 39373-80 15 39373-87 16 39373-14 17 39368-14 18A 137073-17 18B 19 39001-13 20 39001-17
21 39001-17 22 39001-19 23 39001-73
Transformer, I.F. Antenna Loop and Back Assy.
Switch, Power Cable and Plug Assy., Power Speaker (Less Transformer)
Resistor, 22,000 ohm, 1 w.
Resistor, 100 ohm, '/z w. Resistor, 6,800 ohm, 1 w.
Resistor, 3.3 megohm, 1 w. Resistor, 47,000,ohm, 1 w.
Resistor, 1,200 ohm, 1 w. Resistor, 10 megohm, % w. Resistor, 220,000 ohm, ifs w.
Resistor, 470,000 ohm, % w. Resistor, 100 ohm,.3 w. Control, Volume (1 megohm) Condenser, Variable t Two
Condenser, Variable J Section Condenser, .01 mfd., 600 v., paper Condenser, .05.mfd., 600 v., paper
Condenser, .05 mfd., 600 v., paper Condenser, .1 mfd., 600 v., paper Condenser, 250 mmf., 600 v., paper
24 39001-73 25 39001-76 26 39001-73 27 39001-80 28 39001-80 29A 136770 29B 30 138131-1 31 144325 32 137727-21
144244-1 144242 144243
144240
139925-1 139925-2 144239 144224
51071 135075-4 39462-1 51752 132124 134916
©John F. Rider
www.americanradiohistory.com
Condenser, 250 mmf., 600 v., paper Condenser, .003 mfd., 600 v., paper Condenser, 250 mmf., 600 v., paper Condenser, .02 mfd., 600 v., paper Condenser, .02 mfd., 600 v., paper Condenser, 50 mfd., 150 v. 1 Two Sect. Condenser, 30 mfd., 150 v. 5 Elec. Filt.
Transformer, Output Coil Assy., Oscillator Condenser, 50 mmf., 500 v., ceramic
Cabinet (9-119) Cabinet (9-120W) Dial
Grill Cloth
Knob (9-119)
Knob (9-120W) Pointer Disc, Dial Ring, Calibrated Dial Ring, Retaining Shaft, Drive Socket, Tube Spring, Dial Drive Cord Stud, Trimount Washer, Spring
PAGE 18-14 CROSLEY
MODELS 9-201, 9-202M, 9-203B
ANT COIL ICÓ wIE
ASST
CROSLEY DIV. AVCO MFG. CORP.
SAGT
IU I-F. TRANS.
a
65G7
E I-F. TRANS
J
iYl = <
)MME.
'I 04/«.
Q
Q4
3
r t á'
.01
jtOYp
7R
O
a
MA O
.)VS C .01 .6i
óáP
\
32
FM OSC.
13
9
D0DD.AD TFs
\ IT
33 Axt. 36
000
AaR,
10
iE.
\\ \
\
/ \\
/
111111.
5-
//// 33i I
SELECTOR SWITCH SHOWN IN A-N SANGS SWITCH SEOUENCE. ILEFT
P0510105. TO MINTI
PHONO.
ST3 GT
9l
;-,1 911
I
I
Jjjt "
I
33 ,'N
.N.I'ii ú33Nn
30
IiI
I I
I
I
51
-
a
6T8
i
I
E....
65667
79
00 0
03
PLACLNENTDE DIAL GR1v9 CORO
TONING CONDENSER GA. IN
THE CLOSED POSTION
LENGTH OE OIAL CONO S6j
SNOW LOOR TO LOOP
O
-NEJT TO CHASSIS
NOTES
-N TOY SC. E N.
E1-. SS DC. AM. D. 1000
ALL CAPACITANCE VALUES IN MICOOFANAOS UNLESS
OTHERWISE NOTED
31 DENOTES CHASSIS
a 6. TEA NO 00 `3H
.ES5TM1
NA. IN O.74.a uN SOW R.CENERS.
31/2 TURNS
SOT TON INCA
A E
O 00
O
O 00
C NC
I -f. TRAMS
O 00
O
O 00
C
F
SSE I.? TWO.
000
E000
"ïiA1ñ T.
265
.250
232405
OUTPUT
DET.- I S_T AF.AMPL.
FM. Eli AM.-AVC AM.
>I W.J.
80
S
o
if0ge+gi4»
RATIO RANST
2ND FEAMPL.FM.
O
5O0
O
2ND I -F. TRANS.
107 tl0.® *6.3
Wl!©l©A,
12 o
5O0
W. J.
.3
NOTES:
I. BOTTOM VIEW OF SOCKETS.
2.VOLTAGE MEASURED FROM SOCKET LUG TO CHASSIS WITH AN ELECTRONIC VOLTMETER.
RìECTIFIFI;
330
F.AMPL.F-M.aAAy 46.3
I. 1-F TRANS.
455 KC.
(0)
SEC n PRI.
I_0.7 MC.O
3.V0LTAGE MEASURED WITH SWITCH
(1. IN AM. POSITION EXCEPT WH[RE
MARKED WITH DELTA
4
SELECTOR SWITCH IN FM.
POSITION.
5. WJ. WIRING JUNCTION.
!MC. NO CONNECTION. AC. VOLTAGE.
N.C.
Ol1T4'I/- !34 CO 5Y3 p7 330
W.J
N.C.
4 340
M ° 220250 MIXER
61050
®
p0
RFAMPL.
6.ALL VOLTAGES TAKEN AT NOMINAL OPERATING VOLTAGE.117
7. SOCKET VOLTAGE TOLERANCE 10%
CENTER SELECTOR(`) SWITCH WAFFERI,
SOCKET VOLTAGE CHART SOCKET VOLTAGE TOLERANCE 10%
R -F. COIL. (COPPER STRAP)
[OSCILLATOR GRID VOLTS
413. GANG CPEN -7 F -M. GANG OPEN -2.5
OSCILLATOR
ISO
©John F. Rider
RECORD CHANGER: Webster Model 148, RCD.CH. 18-1
www.americanradiohistory.com
Part No.
144113 143403 143733 143735
Item
No.
Part No.
143957 143458 139319 -SB 143504
143956 137266 -SB 143958
Item No.
Part No.
143485 143409 139319 -BR 143488 143483
143484 144505-BR 143489 143482
CROSLEY DIV. AVCO MFG. CORP. REPLACEMENT CABINET PARTS-MODEL 9-201
Description
Part No.
CROSLEY PAGE 18-15
MODELS 9-201,
9-202M, 9-203B
Description
Baffle, Speaker Cabinet Drawer, Panel, Record Changer Grille Cloth
143734 143485 143478
Pull, Record Changer Drawer Rubber Bumper Slides, Record Changer Drawer
REPLACEMENT CABINET PARTS-MODEL 9-202M
Description
tem INo.
Part No.
Description
Baffle, Speaker Cabinet Catch and Strike Assy. Drawer Panel and Radio Compartment
Door Grille Cloth Hinge, Door
Leg and Base Assy. (Front)
143510 143491 142912 -EA 143504
143490 143953 143485 143478
Leg and Base Assy.(Side) Pull, Drawer and Radio Compartment Pull Record Compartment Door Radio Dial Panel Record Changer Drawer Frame Assy. Record Compartment Door Rubber Bumper, Doors Slides, Record Changer Drawer
REPLACEMENT CABINET PARTS-MODEL 9-203B
Description
Item No.
Part No.
Description
Bumper, Rubber, Compt. Door Cabinet Catch and Strike Assy. Doors, Compartment, Record Storage Door and Record Changer Drawer
Front Grille Cloth Hinge, Door Leg and Base Assembly Panel, Radio Dial
143480 -BR 143487 -BR 143431 -BR
39176-78 -BR
143479 143478 139319 -BR
Pull, Door, Radio and Record Changer Pull, Door, Record Storage Compt. Screw, Door Pull, Radio and Record
Changer Compartment Screw, Door Pull, Record Storage
Compartment Shelf Assy., Record Changer Slides, Record Changer Drawer Strike and Catch Assembly
9-202M
TYPE: Eight-tube, two-band, superheterodyne. FREQUENCY RANGE: American Broadcast Band, 540 to 1600 kc. (Selector Switch at AM.) FM Band, 88 to 108 MC; Channels 201 to 300. (Selector Switch at FM.) INTERMEDIATE FREQUENCY: Broadcast Band 455 kc. Frequency Modulated Band 10.7 mc. POWER SUPPLY: 60 cycle a. c. only. VOLTAGE RATING: 105-125 volts. POWER CONSUMPTION: 80 watts maximum. 20 watts additional for record changer. POWER OUTPUT: 4.5 watts maximum.
9-203B
TUBE COMPLEMENT:
Type
6SG7 7F8 6AC7 6SG7 6SG7 6T8
6V6GT 5Y3GT
FUNCTION
R. F. Amplifier Oscillator Mixer I. F. Amplifier AM and FM 2nd I. F. Amplifier FM Det. 1st Audio Amplifier AM and FM, A.V.C., AM Output Rectifier
©John F. Rider
www.americanradiohistory.com
PAGE 18-16 CROSLEY
MODELS 9-201,
9-202M, 9-203B
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE NOTES
1. Shunt a 1000 ohm resistor across the primary (A to E) on the first I.F. transformer (5) and adjust transformer secondary trimmer for maximum output. Remove shunt and transfer it to transformer secondary (C to D) and adjust transformer primary trimmer for maximum. output.
2.
Connect the two 100,000 ohm resistors in connect these resistors from the No. 2 lug
series of the
and 6T8
F. .
GENERATOR
to the chassis. Connect an electronic voltmeter from
the center of these resistors to the shielded lead junc-
tion of the 33,000 ohm resistor (68) and the 1000 mmf.
condenser, (33). Adjust the ratio detector transformer
secondary (D) for zero volts on the electronic volt-
meter. Remove the two 100,000 ohm resistors.
39 Ohm
\/n VVVV
CARBON, RESISTORS
FIG. I
TO RECEIVER 'DIPOLE ANT.
TERMINALS
3. Connect the electronic voltmeter across the 27,000 ohm load resistor (77) and adjust primary of core (A) of the ratio detector transformer (7) for maximum DC output.
4. Connect output of marker generator across sweep generator output. Connect CRO across the 22,000 ohm resistor (64) in the grid circuit of the second I.F.
amplifier.
5. CRO connections same as note 4.
6. For dummy antenna see figure 1.
7. Tune in signal and adjust for maximum sensitivity by a slight movement in either direction from the hairpin loop.
8. Tune in signal and adjust for greatest sensitivity.
i
9. Connect CRO in series with 100,000 ohm resistor to grid of R.F. amplifier and chassis. Connect
output of marker generator across output of sweep generator. Adjust (M-N) until pattern and
markers approximate figure in alignment chart.
9a. Shunt primary of FM antenna transformer with a 10 ohm carbon resistor and adjust (M) for maximum output. Remove shunt and place it across FM antenna transformer secondary and adjust (N) for maximum output. Remove shunt.
10. Connect BC. dummy loop (Fig. 2) across loop terminals on rear of chassis.
MEGACYCLES TO CHANNEL NUMBERS
Cross index between frequency calibrations in megacycles on the dial and channel numbers follow:
Frequency in Megacycles
87.9 88.9 89.9 90.9 91.9 92.9 93.9 94.9 95.9 96.9 97.9
Channel No.
200 205 210 215 220 225 230 235 240 245 250
Frequency in Megacycles
98.9 99.9 100.9 101.9 102.9 103.9 104.9 105.9 106.9 107.9
Channel No.
255 260 265 270 275 280 285 290 295 300
To find the frequency in megacycles for CHANNEL NUMBERS between those given abové, add .2
megacycle for every whole number added to the CHANNEL NUMBER; for example Channel 204
would be 88.7 megacycles and 251 would be 98.1 megacycles.
I
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-1
MODELS 9-201,
9-202M, 9-203B
ALIGNMENT PROCEDURE
This receiver has been aligned at the factory for best performance, and no attempt should be made to realign it unless the proper test equipment is available.
Turn the tuning condenser to full mesh against stop and position the pointer 2-3/8 inches from left side of dial background. In the FM band, the pointer is 5-7/16" from the left side at 98 mc. and in the
AM band 8-13/32" from the left side for 1400 kc.
3. Connect the output meter across the speaker voice coil (3.2 ohms). Connect the CRO as indicated in the alignment procedure notes.
Feed an R.F. amplitude modulated signal, modulated 30% at 400 cycles to the receiver as indicated in the alignment chart. When the FM signal generator is used, connect as indicated in the alignment
chart. A 30% modulated signal is equal to a deviation of 22.5 kc.
15.
Turn the volume control knob to maximum clockwise position and adjust the signal generator out-
put to produce a noticeable output meter reading. Keep the signal generator output as low as possible
to prevent excessive AVC action in the receiver.
6. Set the tone control to treble position.
7. The broadcast band must be aligned with the built-in loop antenna connected. If the chassis is removed from the cabinet, a suitable dummy antenna consisting of a coil of 18.2 uh. inductance in
parallel with a 56 mmf. capacitor must be used. (See circuit)
8. The short lead wire with the spade lug on the rear of the chassis should be removed from the upper screw on the antenna terminal strip, if it is connected.
9. For complete receiver alignment, see the alignment procedure chart - - - --- -- and alignment proce-
dure notes.
10. For position of trimmers, refer to chassis rear view
schematic diagram - - - - for item No's.)
- and socket voltage chart.
(See
. A Mt TRIM. 1400 K.C.
TRIM.
AC.PLUG & CORD
,
.
^
RATI
; DE
MC
TRA`,
é152IF: ANS.
MOTOR
PIN CK T
SPEAKER
SOCKET
PHONO
JACK WIRE IN POSITI TO USE EXTANT.
DIPOLE ANT. TERMINALS
WAVE TRAP 455 KC. F M. A NT. TRANS.® SEC. 98 MC.
F M.AN T. TRANS.
PRI.
98 MC.
BC. BUILT-IN LOOP
BC.SINGLE WIRE EXTERNAL ANT.
CHASSIS, REAR VIEW
©John F. Rider
www.americanradiohistory.com
-18 CROSLEY
MODELS 9-201,
9-202M, 9-203B
CROSLEY DIV. AVCO MFG. CORP.
Y
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©John F. Rider
www.americanradiohistory.com
N.-i
m
.--i
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-19
MODELS 9 -201, 9-202M, 9-203B
Figures in First Column Correspond to Figures in Schematic Diagram
Item No.
Part Na.
1 143650
2 144010
3 143179
4 143502
5 143090
6 143105
7 143378
8 143305
9 143752
1il0
143180 143752
12 136720
13A 142775
13B
13C
14 137219-4
15 137219-5
16 143014
17 143686-2
18 137727-1
19 39001-13
20 39001-13
21 39001-13
22 137727-48
23 139115-5
24 143223-10
25 39001-13
26 39001-13
27 39001-13
28 39001-13
29 39001-13
30 39001-13
31 39001-13
32 139692
33 137727-8
34 137398-5
35 137727-53
36 143112
37 137727-53
38 137727-8
39 137727-8
40 137727-44
41 137727-8
42 39001-13
43 39001-13
44 39001-11
45 39001-1
46 137727-8
47 39001-80
48 39001-11
49 137727-8
50 137727-8
51A 143089
51B
51C
51D
52 142958
53 39373-92
54 39373-80
55 39373-67
56 39373-40
57 39373-40
58 39373-92
59 39373-77
60 39373-40
61 39373-67
62 39373-40
63 143513
64 39373-60
65 39373-21
66 39373-65
67 39373-174
68 39373-64
70 39373-71
Description Coil, Antenna (F.M.) Coil, Antenna (B.C.) Coil, Wave Trap, 455 Kc. Coil, R.F. (F.M.) Transformer, 1st I.F. Transformer, 2nd I.F. Transformer, Ratio Det. Coil Assy., Oscillator (F.M.) Coil, Choke Coil, Osc. (B.C.) Coil, Choke Coil, Choke (Heater) Condenser, Variable Condenser, Variable Three Section Condenser, Variable Condenser, Trimmer Condenser, Trimmer Condenser, Trimmer Condenser, 33 mmf., 500 v., ceramic Condenser, 100 mmf., 300 v., ceramic Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .005 mfd., 500v., ceramic Strip, Copper Condenser, 330 mmf., 500 v., mica Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Loop Ant. (Transmission Line) Condenser, 1000 mmf., 300 v., ceramic Condenser, 3.3 mmf., 500 v., ceramic Condenser, 33 mmf., 500 v., ceramic Condenser, 50 mmf., ceramic Condenser, 33 mmf., 500 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Condenser, 10 mmf., 500 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Condenser, .01 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper Condenser, .005 mfd., 600 v.,paper Condenser, 100 mmf., 600 v., paper Condenser, 1000 mmf., 500 v., ceramic Condenser, .02 mfd., 600 v., paper Condenser, .005 mfd., 600 v., paper Condenser, 1000 mmf., 300 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Condenser, 40 mfd., 450 v. Four Condenser, 20 mfd., 450 v. Section Condenser, 10 mfd., 450 v. Elect. Condenser, 20 mfd., 25 v. Filter Condenser, 4 mfd., 50 v., E ect. Resistor, 1.0 megohm, % w. Resistor, 220,000 ohms, %e w. Resistor, 47,000 ohms, % w. Resistor, 2,200 ohms, % w. Resistor, 2,200 ohms, 1/4 w. Resistor, 1.0 megohm, % w. Resistor, 150,000 ohms, % w. Resistor, 2,200 ohms, % w. Resistor, 47,000 ohms, % w. Resistor, 2,200 ohms, lie w. Record Changer (W-148) Resistor, 22,000 ohms, lie w. Resistor, 270 ohms, lie w. Resistor, 39,000 ohms, 3 w. Resistor, 33,000 ohms, 1 w. Resistor, 33,000 ohms, % w. Resistor, 68,000 ohms, % w.
Item No.
Part No.
71 39373-64 72 39373-60 73 39373-40 74 39373-97 75 39373-64
76 39373-107 77 39373-62 78 39373-84 79 39371-5 80 39373-263 81 39373-87 82 39373-131 83 39368-14 84A 39368-22
39370-2 84B 39369-1 85A 142968 85B 85C
86 135105
87 138131-2
88 144068
89 139727-5 90 132300-2
9f 39019-3
92 143404
93 138762-5 94 137398-5 95 143606 96 136998
97 138437-1
98 138437-1 99 39373-92
100 39373-64
143397 41405-2CP 139477-1 139477-2 136853 143413 143700 46065 45056 39012-84 39012-84 138576-6 143778 45580 143414 143453
136979 143513 51071 39220-40CP 39220-38CP
39220-30CP'
136565-24 39232-1 136470 143114 143398 137148 51752 143552 135038-51 135038-4 135038-56 135038-57 142766 134916
Description Resistor, 33,000 ohms, 3e w. Resistor, 22,000 ohms, lie w. Resistor, 2,200 ohms, % w. Resistor, 2.2 megohm, le w. Resistor, 33,000 ohms, ' w. Resistor, 10 megohm, lie w. Resistor, 27,000 ohms, % w. Resistor, 330,000 ohms, 3 w. Resistor, 1,000 ohms, 10 w. Resistor, 1,000 ohms, 2 w. Resistor, 470,000 ohms, % w. Resistor, 270 ohms, 1 w. Control, Volume, (1 megohm), Knurled Control, Tone (3 megohm) Shaft, Tone Control (Knurled) Switch, Power Switch, Band l Switch, Band J} Three Section Switch, Band Transformer, Power Transformer, Output Cable and Pin Assy., Speaker Cable, Phono Motor Cable and Plug Assy., Power Terminal Board, Antenna Terminal Board, Loop antenna Speaker Condenser, 3.3 mmf., 500 v. Coil, Band Pass (B.C.) Phono Jack Bulb (Dial), Type 47, 6-8 v., .15 amp. Bulb (Dial), Type 47, 6-8 v., .15 amp. Resistor, 1 megohm, % w. Resistor, 33,000 ohms, lie w. Background Assy., Dial Bushing, Sub -Chassis Mtg. Button, Loop (with shoulder) Button, Loop (without shoulder) Cushion, Rubber (Dial Mtg.) Dial Glass Escutcheon, Dial Grommet, Rubber, Sub-Chassis Mtg. Grommet, Chassis Support Bracket Iron Core, 1st I.F. Iron Core, 2nd I.F. Knob Knob (Band Switch) Mounting, Rubber (Speaker) Pointer, Dial Pulley and Hub Assy. (Variable
Condenser) Pulley, Dial Drive Idler Record Changer (W-148) Ring, Retaining (Dial Drive Shaft) Screw, Chassis Mtg. (9-202M) Screw, Chassis Mtg. (9-201) Screw, Chassis Mtg. Socket, Dial Light Socket, Tube , Octal Socket, Loctal Socket, 9 prong Shaft, Drive Dial Spacer Spring, Dial Drive Cord Strip, Dial Pointer Terminal Strip, Six Lug Terminal Strip, One Lug Terminal Strip, Two Lug Terminal Strip, Seven Lug Tuning Blade, F.M. Osc.
Washer, Spring (Dial Drive Shaft)
©John Fo Rider
www.americanradiohistory.com
PAGE 18-20 CROSLEY
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG,. CORP.
ALIGNMENT PROCEDURE
CROSLEY PAGE 18-2
MODEL 9 -3 02
1.
Turn the tuning condenser to the completely to the reference line at the 550 kilocycle end
closed position
of the scale.
against
the
stop
and
set
the
dial
pointer
2. Connect the output meter across the speaker voice coil.
3.
Connect a 47,000 ohm resistor from the antenna the terminal board next to the tuning condenser.
trimmer lug
on
the
tuning
condenser
to
the
lug
on
4.
Connect the high side of the signal lug. Connect the signal generator trolytic Filter Condenser.)
generator, through a ground through a 0.1
200 mmf. condenser, to the antenna
mmf. condenser to B-(Black wire
trimmer or Elec-
5.
Turn the volume control on full and adjust the signal generator output to produce approximately
scale deflection of the output meter, vent AVC action in the receiver.
but
maintain
signal
generator
output
as
low
as
possible
to
mid pre-
ALIGNMENT CHART
Alignment adjustment locations are shown on
Chassis View-Model 9-302
Signal Generator Output
Alignment
Sequence Frequency In Series To
in KC
with
Position of Adjust for Dial pointer Maximum or Var. Cond. Output
Remarks
Antenna
1
455 200 inmf. Trimmer Closed Lug
A & B
See steps 3 & 4 of Alignment procedure
Antenna
2
1620 200 mmf. Trimmer Open
Lug
D
See note 1 of Alignment notes
Antenna
3
1400 200 mmf. Trimmer 1400 kc
E
Lug
See note 2 of Alignment notes
4
1400
200 mmf.
Antenna
Clip
1400 kc
F
See note 3 of Alignment notes
ALIGNMENT NOTES
1. Preset "C" to 1/8 turn from its closed position before adjusting "D". 2. Preset "G" to 1/4 turn from its closed position before adjusting "E".
3.
Remove the 47,000 ohm resistor the chassis in the cabinet, install net back panel. Remove the hole
plug.
from the antenna trimmer lug and the Terminal the battery pack in the cabinet under the chassis plug from the cabinet back and adjust trimmer
board lug. Replace
and close the cabi"F". Replace hole
©John F. Rider
www.americanradiohistory.com
PAGE 18-22 CROSLEY
MODEL 9-302
T P.W R 'RD PLUG FOR BATTERY
OPERATION
CROSLEY DIV. AVCO MFG. CORP.
BATTERY PLUG
Á CABLE
A.C. CORD
8 PLUG
CHASSIS, TOP VIEW
TO EXTERNAL ANT. CLIP ON LOOP BACK
RF TRIMMER 1400 C.
05G.TRIMMER 1620 KC.
ANT TRIMMER 1400 KC
NNE T R WIRE FROM LOOP CONNECT YELLOW WIRE FROM LOOP
SELENIUM RECT(FtER
PLAGMENT OF DIAL DRIVE CORO
TUNING CONDENSER GANG IN THE CLOUD POSITION. LENGTH OF DIAL GORb 29 FROM LOOP TO LOOP.
U
88 90
U OUTPUT
1/®Tm'
6 5 7.5
_!1,2
i_ R -E AMPLI FIER O A88 90 1.3
84- s©®' 1.3
1.5
84
7.8
90
I -F.
AMPLIFIER
3.9
0
50 50
W. J,
5.2
4.5
6.0
DET. AVC. 550ö
2.CONVERTERa 88 9 O.
1.3
1.5
2,6 3.0
ISTA F. AMPL8. 8
2 6:5
27 9
5
OOI 5.2
50
6,40 5 pl©j
50
23
2.6
23
3.0
OSCILLATOR GRID VOLTAGE
POSITION 117 VOLT BATTERY
-4 OF GANG OPERATION OPERATION
CLOSED
-3.8
OPEN
-8.6
-8.2
NOTES'.
I. BOTTOM VIEW OF TUBE SOCKETS
2. VOLTAGES MEASURED WITH AN
ELECTRONIC SOCKET LUG
VOLTMETER
TO B-.
FROM
S.W.J. WIRING JUNCTION.
4.N.C. NO CONNECTION.
5,y VOLTAGES MEASURED WITH
R60ADCIOYCPLLEUGLEINDEI.NTO 117 VOLT,
6.* 60 CYCLE VOLTAGE.
7. ALL OTHER VOLTAGES MEASUR-
'B'EPDOSINI9T0IOBNVAOTTLWETRSITY. NO'AP'E9RVAOTLIOTNS,
B. S1O0%CK.ET VOLTAGE TOLERANCE
SOCKET VOLTAGE CHART
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
DESCRIPTION
CROSLEY PAGE 18-23
MODEL 9-302
TYPE: Five -tube, combination, battery Portable and AC -DC Superheterodyne with Selenium Recti-
fier.
FREQUENCY RANGE: 540 to 1600 kilocycles.
INTERMEDIATE FREQUENCY: 455 kc.
POWER SUPPLY: AC-DC or Battery.
VOLTAGE RATING: AC -DC, 110 to 120 volts. Battery "A" 71/2 volts, "B" 90 volts.
POWER OUTPUT: 200 M.W. maximum
POWER CONSUMPTION: 15 watts at 125 volts,
60 cycle.
""AA"-Bv"olBtsA-T9T0ER"BY"
PACK: volts.
one
Crosley
CR68,
7.5
TUBE COMPLEMENT:
Type
Function
1L4
R.F. Amplifier
1R5
Mixer
1L4
I.F. Amplifier
1U5
Detector, AVC, 1st A.F. Amplifier
3V4
A.F. Power Output
REPLACEMENT PARTS LIST-MODEL 9-302
Figures in the first column correspond to figures in Schematic Diagram.
Item No.
Part No.
Description
Item No.
Part No.
Description
1 AC -143080
Loop Antenna Assembly
2 AW-136966 Coil Assy., R.F.
3 AW-136288 Transformer, 1st I.F.
4 AW-136289 Transformer, 2nd I.F.
5 AW-144209 Coil Assy. Oscillator
6A AB-143151
Condenser,
Variable Three Section Assy.
6B
Condenser, Includes Pulley and
Variable Pinion Drive Assy.
6C
Condenser, AB -143140
Variable
AB -143140 Pulley & Pinion Drive Assy. only.
6D
Part of Item 6A
(Var. Cond.) Condenser, Trimmer
6E Part of Item 6B Condenser, Trimmer
6F Part of Item 6C Condenser, Trimmer
7 C-137727-58 Condenser, 22 mmf., 300 v., ceramic
8 39001-13
Condenser, .01 mfd., 600 v., paper
9 39001-17
Condenser, .05 mfd., 600 v., paper
10 39001-7
Condenser, .001 mfd., 600 v., paper
11 C-137727-22 Condenser, 75 mmf., 500 v., ceramic
12 39001-76
Condenser, .003 mfd., 600 v., paper
13 39001-76
Condenser, .003 mfd., 600 v., paper
14 39001-19
Condenser, .1 mfd., 600 v., paper
15 39001-19
Condenser, .1 mfd., 600 v., paper
16 39001-19
Condenser, .1 mfd., 600 v., paper
17 39001-87
Condenser, .25 mfd., 600 v., paper
18 39001-7
Condenser, .001 mfd., 600 v., paper
19 39001-19
Condenser, .1 mfd., 600 v., paper
20 C-137727-22 Condenser, 75 mmf., 500 v., ceramic
21 39001-19
Condenser, .1 mfd., 600 v., paper
22 39001-17
Condenser, .05 mfd., 600 v., paper
23A B-136294 23B 23C
24 39373-97 25 39373-74
Condenser, 40 mfd., 100 v. '
Condenser, 40 mfd., 150 v. ,.
Condenser, 20 mfd., 10 v.
Resistor,
2.2
megohm,
'/z
1
w.
Three Sectio
Electrnic
Filter
Resistor, 100,000 ohm, % w.
26 39373-67
Resistor, 47,000 ohm, ? w.
27 39373-90
Resistor, 680,000 ohm,', w.
28 39373-100
Resistor, 3.3 megohm, 1e w.
29 39373-92
Resistor, 1. megohm, ?s w.
30 39373-40 31 39373-100 32 39373-57 33 39373-107 34 39373-33 35 39373-36 36 W-143123 37A 39368-14 37B 39369-2 38A AB -143068 38B
39 C-132300-3 40 AB -139513-2
W-134126 41 B-135878 42 138246 44 B-135459 45 39373-34 46 39373-100 47 39373-129 48 39373-233 49 B-143883-2 50 C-137727-66
39354-23 39176-72CP R-143031 C-143121 D-143124 AB -139484-2 W-135590-3 C-143139 B-139482 AW-139424
AB -143140 W-143146 W-51752 W-138171 39458-42 39176-71CP W-143846 W-143054
Resistor, 2,200 ohm, ', w.
Resistor, 3.3 megohm, '.z w.
Resistor, 15,000 ohm, ' w.
Resistor, Resistor,
110,00m0eoghomhm, ,h
',2 w. w.
Resistor, 1,500 ohm ' w.
Resistor, 2,000 ohm, 6 w. (wire-wound)
Control, Volume (1 megohm )
Switch, Power
Switch, Power Line-Battery Switch, Power Line -Battery
/ i
Assy.
Cable & Plug Assembly, Power
Cable & Plug Assembly, Battery
Plug (only), Battery
Transformer, Output
Speaker
Condenser, 1000 mfd., 10 v., Elect.
Resistor, 1,200 ohm, % w.
Resistor, 3.3 megohm, w.
Resistor, 220 ohm, 1 w.
Resistor, 82 ohm, 2 w.
Rectifier, Selenium
Condenser, 18 mmf., 500 v., ceramic
Bumper, Handle
Button. Hole Plug
Cabinet
Dial Glass
Escutcheon
Handle
Knob
Plate, Dial Background
Pointer, Dial
Pulley & Bracket Assy., Idler (Dial
Drive)
Pulley & Drive Assy. (only)
Screw, Handle
Screw, Escutcheon
Screw, Chassis Mtg. (8/32 x )
Screw, Chassis Mtg. (8/32 x ra )
Socket, Tube (Miniature)
Spring, Dial Drive Cord
Strip, Dial Pointer
©John F. Rider
PAGE 18-24 CROSLEY
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-25
MODEL 56TP -L
ALIGNMENT PROCEDURE
1.
Turn the tuning condenser to the completely closed position pointer to the reference line at the end of the dial scale.
against
the
stop
and
set
the
dial
2. Connect the output meter across the speaker voice coil.
-B 3. The r.f. signal input from the signal generator should be connected to the external antenna lead.
Connect the signal generator ground through a 0.1 mfd. condenser to
(pin 3 on 12SK7 tube
socket).
4. Turn the volume control on full and adjust the signal generator output to produce approximately
mid-scale deflection of the output meter, prevent AVC action in the receiver.
but
maintain
signal
generator
output
as
low
as
possible
to
ALIGNMENT CHART
Alignment adjustment locations are shown on
Chassis, Side View-Model 56TP -L
Alignment Sequence
Signal Generator Output
Frequency in kc.
In Series with
To
Position of
Band Switch
Tuning Dial
Adjust for Maximum Output
455
200 mmf.
Ant.
Left
1,620
A df B
2
15,300
400 ohms
Ant.
Right
15,300
C
3
15,000
400 ohms
Ant.
Right
15,000
D
4
1,620
200 mmf.
Ant.
A
1,620
E
5
1,400
200 mmf.
Ant.
A
1,400
F
NOTE: When aligning the short-wave oscillator trimmer (C), be sure that the circuit is aligned at the correct frequency and not at the image frequency which is 910 kilocycles lower as indicated by the receiver dial. To check: Tune in the generator frequency, then increase the generator output and tune in the image frequency. The image frequency should be weaker than the fundamental and audible 910 kilocycles lower on the receiver dial. If the image cannot be tuned in, the oscillator trimmer is adjusted to the wrong peak; i.e., the oscillator trimmer may be adjusted to the image or one of the harmonics instead of the fundamental frequency. The correct peak is the second one heard as the trimmer adjustment screw is opened from the completely closed position.
SOCKET VOLTAGE CHART
OSCILLATOR GRID VOLTAGES BAND FREQUENCY VOLTS
AMERICAN 540 KC - 49 OVERSEAS 5.7 MC - 3.8
MIXER
I. F. AMPLIFIER
+x
DET - A.V. C.- Ist A.F
RECTIFIER
`'e1©T`©r4
C~
©0 11,117
.,,a47yI 1Ilx
NOTES'
t,
L TUBE SOCKETS ARE BOTTOM VIEWS.
2 MEASURE VOLTAGES FROM SOCKET LUG TO
-B (PIN 4 ON THE 14A7)
3. VOLTAGES AS MEASURED WITH AN ELECTRONIC
VOLTMETER 4 WJ-WIRING JUNCTION
S NC -ND CONNECTION
6. *-AC VOLTAGES
7 VOLTAGE TOLERANCE , 10%
a LINE VOLTAGE 117V, 6O't AC
POWER
It
©John F. Rider
www.americanradiohistory.com
PAGE 18-26 CROSLEY
MODEL 56TP-L
CROSLEY DIV. AVCO MFG. CORP.
Figures in first column correspond to figures in schematic diagram.
Item No.
Part No.
Description
Item No.
Part No.
Description
1 W-48858 2 C-132300-1
Bulb (Dial Light, Type 47, 6.3 v.,.15 amp) Cable and Plug (Power)
3 AC-134605
4 AW-134994 5A AW-134993
Antenna Loop Assembly Antenna Coil Assembly Coil (B. C. Oscillator) l Two
5B 6 AW-134065
Coil (H. F. Oscillator) I Section Transformer (1st I. F.)
7 AW-134158
Transformer (2nd I. F.)
8A B-134995
Condenser (Variable) 1 Two
88
Condenser (Variable) I Section
8C Part of Item =8B Condenser (Trimmer)
9A AB -134982
Condenser (Trimmer) l Two
9B
Condenser (Trimmer) I Sect:on
10 GC -210685-143 Condenser, 580 mmf., 300 v., Mica
11 B-226638-53 12 39001-65 13 39001-67
14 39001-65
Condenser, 50 mmf., 500 v., Mica Condenser, .05 mfd., 200 v., Paper Condenser, .1 mfd., 200 v., Paper Condenser, .05 mfd., 200 v., Paper
15 39001-73 16 39001 -IO
Condenser, 250 mmf., 500 v., Mica Condenser, 3300 mmf., 600 v., Paper
Two
17A W-134988 17B
Condenser, 60 mfd., 150 w.v. Section Condenser, 20 mfd., 100 w.v. Elect.
Filter
18 39001-63 19 39001-63 20 39001-63
Condenser, .022 mfd., 200 v., Paper Condenser, .022 mfd., 200 v., Paper Condenser, .022 mfd., 200 v., Paper
22 39001-66 23 39001-10
24 39281-7
Condenser, .075 mfd., 200 v., Paper
CRoesnidsetonrs,er1,0303o0h0mm, m4f.,w6. 00 v., Paper
25 39281-28
Resistor, 330,000 ohm, 34 w.
26 39281-38
Resistor, 15 megohm, 54 w.
27 39281-21
Resistor, 22,000 ohm, 1,4 w.
W-134939
W-135371 39017-4 C-134869 B-134952 W-134667 W-134917 AB -134697 W-51071 W-134916 W-49829 W-51752 W-49770
W-136630 W-134065 R-135021 B-134931 W-134882 W-134742 W-134924 AB -134935. W-131126 136774-68 136774-129 131104 131098 131101 131102 131207 131097 131103
Switch, S. P. S. T. (Slide Type) Socket (Tube) Socket (Dial Light) Assembly Face (Dial) Pointer (Dial) Clip (Dial Pointer) Shaft (Drive) Toggle Link Assembly Ring (Retaining) Washer (Spring) Spring (Lock) Spring (Dial Cord) Stud, Trimount (Dial Face and Chassis
Bottom) Stud, Trimount (Toggle Link) Grommet Cabinet Lens (Dial) Knob (Volume or Dial) Knob (Tone) Knob (Band Change) Floating Jewel Needle Assembly Spring, Ratio Change Pickup Cartridge Phono Motor (only) Turntable Grommet (Motor Mounting) Bushing (Motor Mounting) Idler Wheel Spindle (Turntable) Phono Mounting Plate Spring (Idler Wheel)
29 39281-34 30 39281-23 31 39281-35 32 39281-29 33 39281-29 34 39281-8 36 39281-11 37 39015-26 38A B-134720 38B
38C 38D 39A C-46846-6 39B
41 Part of Item r3
42 W-134939 43 B-134940 44 C-134724 46 B-134245 47 B-135023
49 W-137367
Resistor, 3.3 megohm, ßi4 w.
Resistor, 47,000 ohm, 44. w.
Resistor, 4.7 megohm, 44 w.
Resistor, 470,000 ohm, 44 w.
Resistor, 470 000 ohm, 44 w.
Resistor, 150 ohm, 44 w.
Resistor, 470 ohm, 44 w.
Resistor, 1200 ohm, 1 w.
Switch (Band Change)
Switch (Band Change) Four
Switch (Band Change) Section
Switch (Band Change)
Control, Volume (1 megohm) l Assem-
Switch (Power)
I bly
Condenser (Antenna Trimmer)
Switch (Tone Control)
Transformer (Output)
Phono. Motor and Spindle Assembly
Tone Arm and Cartridge Assembly
Speaker
Resistor, 47 ohm, 1 w:
MODEL: 56TP -L
Reversing the position of the power plug when alternating current is used may reduce power hum. Under no circumstances should a ground be connected to this receiver.
TYPE: Five-tubé, two-band, superheterodyne.
FREQUENCY RANGE: American Broadcast
Band: 540 to 1600 kc. (Selector switch at A.) Overseas Short-wave Band: 5.8 to 15 mc. (Selector switch at 0.) INTERMEDIATE FREQUENCY: 455 kc. POWER SUPPLY: 60 cycle a.c. only.
VOLTAGE RATING: 105-125 volts. POWER CONSUMPTION: 35 watts nominal. POWER OUTPUT: 1.5 watts minimum.
TUBE COMPLEMENT:
Type
Function
14Q7
Mixer
14A7 14B6 50A5
I. F. Amplifier Detector, AVC,
ist A.F. Amplifier
A.F. Power Output
35Y4
Rectifier
DIAL BULB: Type 47, 6.3 volts, .15 amp.
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-27
MODELS TR
56TS
LOOP ANT
ON LOOP
TA
430 6A
EAT ANT
43
BC
eB
455 KC. LF
05C1
COIL
30 ISO
750
6
dirr4
25K1
iEJj6O
2nd I.F TRANS.
Ç 9-29
;o0O1
G Q 0
0wO OKI
221013.
022
05 o
23 0
6
2a
MW
33M G.3
27
41316
0033 } n R
00 3 02 VOLUME CONTROL.
0 0 075
. 33.42
T ao 35 -33
324
AA 5046 125,1
25
200n -AvAn4b
SPEAKER
tT©)
36 4TA
-i 3525
47 NEATER
320
3.3
.50(1
1..1
0000,3
16A
188
nn IOM
0000
34 ou.POT TRANS,
-
T 05 3
12501 12SAt
316
BdND CHANGE SWITCH SHOWN IN EXTREME COUNTER -CLOCKWISE POSITION SWITCH SEQUENCE 34010 NORMAL TONE RADIO LOw TONE , PRONO cow TONE , PHONO
NORMAL PINE.
iCHASSIS
Reversing the position of the power plug may reduce power hum. Under no circumstances should a ground be connected to this receiver.
PHONO PICKUP TERMINALS
BROADCAST OSC. TRIMMER 1620 KC.
7C BROADCAST ANT.
V TRIMMER 1400 KC. 41
©John F. Rider
CHASSIS, SIDE VIEW-MODELS: 56TR, 56TS
RECORD ChANGER : GÌ Model 205, RCD.CH. 15-5
www.americanradiohistory.com
PAGE 18-28 CROSLEY
iMIODELS 56TR, 56TS
OROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer to the reference line at the end of the dial scale.
2. Turn tone control switch to normal tone position.
3. Connect the output meter across the speaker voice coil. 4. The r.f. signal input from the signal generator should be connected to the external antenna clip. Connect
the signal generator ground through a 0.1 mfd. condenser to-B (pin 3 on 12SK7 tube soéketj.
5. Turn the volume control on full and adjust the signal generator output to produce approximately mid scale deflection of the output meter, but maintain signal generator output as low as possible to prevent AVC action in the receiver.
Alignment Sequence
ALIGNMENT CHART
Alignment adjustment locations are shown on
Chassis, Side View-Models 56TR, 56TS
Signal Generator Output
Frequency in kc.
In Series with
To
Position of
Band Switch
Tuning Dial
Adjust for Maximum Output
1
455
200 mmf.
Ant.
Right
1620
A&B
1620
200 mmf
Ant.
Right
1620
C
3
1400
200 mmf
Ant.
Right
1400
D
Note: Model 56TS uses the Model G-5 (Part No. D-134921) automatic record changer. and parts list.
SOCKET VOLTAGE CHART
RECTIFIER N.J. .112
POWER OUTPUT 90
D E T. - A.V.C. IST. A.F. AMP.
I.F. AMPLIFIER
24
OSCILLATOR GRID VOLTAGE BAND FREQUENCY VOLTS
AMERICAN 540 KC -5.5
--- MIXER
20
NOTES. I. THESE ARE BOTTOM VIEWS OF TUBE SOCKETS.
2. MEASURE VOLTAGES FROM SOCKET LUGS TO
`5 -(PIN 3 ON THE 1251171.
3. THESE VOLTAGES WERE MEASURED USING
AN ELECTRONIC VOLTMETER.
- 4. W.J. WIRING JUNCTION.
- 5. N.G.
- 6.*
NO CONNECTION. 60 CYCLE A.C. VOLTAGES.
7. SOCKET VOLTAGE TOLERANCE, ION..
B. LINE VOLTAGE 117 V, 6O,. A.C.
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. .AVCO MFG. CORP.
56TR
CROSLEY PAGE 18-29
MODELS 56TR, 56TS
56TS
TYPE: Five -tube superheterodyne.
FREQUENCY RANGE: 540 to 1600 kc. INTERMEDIATE FREQUENCY: 455 kc. POWER SUPPLY: 60 cycle a.c. only.
TUBE COMPLEMENT:
12SA7 12S K7
Type
Function Converter I.F. Amplifier
VOLTAGE RATING: 105-125 volts.
POWER CONSUMPTION:
Radie Phono
position -30 position-45
watts. watts.
12SQ7
50L6GT 35Z5GT
Detector, AVC, 1st I.F. Amplifier A.F. Power Output Rectifier
POWER OUTPUT: 1.5 watts minimum.
DIAL BULB: Type 47, 6.3 volts, .15 amp.
Figures in first column correspond to figures in schemat'c diagram.
Item Part Number No.
Description
Item Part Number
No.
Description
1
2 3 4 5 6 7A 7B 7C 9 10 11 12 13 14 15 16 . 17
18B
19
W-48858 C-132300-1 AC -135840 AW-135730 AW-135729 AW-135731 B-135570
Partof Item#78
39001-76 39001-17 39001-17 39001-19 39001-17 39001-73 39001-76 39001-80 39001-80 B-136770
39294-8
Bulb (Dial), Type 47, 6.3 v., .15 amp. Cable & Plug (Power) Ant. Loop & Back Amy. Coil Assy., Oscillator Transformer, 1st I. F. Transformer, 2nd I. F. Condenser, Variable) Two Condenser, Variable, Section Condenser, Trimmer Condenser, .003 mfd., 600 v., Paper Condenser, .05 mid., 600 v., Paper Condenser, .05 mfd., 600 v., Paper Condenser, .1 mfd., 600 v., Paper Condenser, .05 mfd., 600 v., Paper Condenser, 250 mmf., 600 v., Paper Condenser, .003 mfd., 600 v., Paper Condenser, .02 mfd., 600 v., Paper Condenser, .02 mfd., 600 v., Paper Condenser, 50 mid., 150 w.v.l Two CReosnidsteonrs,er1,5030ohmmfd,...'415w0. w.v.I Section
'20
21 22 23 24 25 26 27 28 29 30 31A 31B
h 39294-21
Resistor, 22,000 ohm, w.
39294-38
5 39294-21 h 39294-27
39294-34 39015-26
Part of Item #6
39294-35
4 39294-29
39294-29 39294-8 B-135692
Resistor, 15.0 megohm, w.
Resistor, 22,000 ohm, w.
Resistor, Resistor, Resistor,
220,000 ohm, 34 3.3 megohm, 34 1200 ohm, 1 w.
w. w.
Resistor, 47,000 ohm, 34 w.
Resistor, 4.7 megohm, w.
Resistor, 470,000 ohm, 34 w.
Resistor, 470,000 ohm, 34 w.
Resistor, Control,
150 ohm, 34 Volume (1.0
mw:egohm)y
Switch, Power (Radio)
.J 39368-14
Control, Volume
39369-1
Switch, Power (Radio)
32A B-136641 32B
Jay Switch (Radio, Phono, Tone)1
Switch, Power (Phono.)
33 C-135633
Speaker (Less Transformer)
34 B-137723
Transformer, Output
36 37 38 39 41 a 444
D-134921
C-134724 W-137367 B-134245
Part of Item #3
Record Changer, G5 (66TS) Phono Motor & Turntable Assy. (56TR) Resistor, 47 ohm. 1 w. Tone Arm & Cartridge Assy. (56TR) Condenser, Trimmer
39001-80
Condenser, .02 mfd., 600 v. Paper
G-39204 D-136565-15
AB -135575 W-135074 W-131154-1 W-51752 B-135460
B-135568 W-51071 W-134916
W-134055 W-135164
it -137483
R-137982
B-135751 W-137200
W-135929
W-135930
AB -134935 136774-68
W-131126 W-138271
131104
131098
131101 131102 131103
131207 131097 W-134247 W-134246 W-134955 W-45056 AB -137859 AB -137884
'These parts will replace the original equipment parts.
**Early models used a No. 44 were not used.
three
section
Filter
Condenser,
Part
No.
B-135732.
Item
No.
20
and
Socket, Tube Socket, Dial Light Plate & Stud Amy., Dial Pulley, Idler (Wood) Cotter, External (Idler Pulley) Spring, Dial Drive Cord Pointer, Dial Shaft, Drive Ring, Retaining (Drive Shaft) Washer, Spring (Drive Shaft) Grommet Bumper Cabinet (56TR) Cabinet (56TS) Dial Glass Spring, Retaining (Dial Glass) Knob (Dial or Volume) Knob (Radio-Phono) Floating Jewel Needle Assy. Cartridge, Pickup Spring, Ratio Change (56TR) Motor & Spindle Assy. (Less Turntable),56TR Turntable (56TR) Grommet, Motor Mtg. (56TR) Bushing, Motor Mtg. (56TR) Idler Wheel, Phono (56TR) Spring, Idler Wheel (56TR) Spindle, Turntable (56TR) Plate, Phono Mtg. (56TR) Rest, Tone Arm (56TR) Spacer, Tone Arm (56TR) Bumper (56TS) Grommet (56TS) Support, Lid (56TS) Support, Lid (56TR)
©John F. Rider
www.americanradiohistory.com
PAGE 18-30 CROSLEY
MODELS 56TU-0, 56Tv-o
.000000
CROSLEY DIV. AVCO MFG. CORP.
00000
b1v.15
000000
i
0000
e.
Q000 OE,
6ö0) 0000006
o
V
rr a)
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
, CROSLEY PAGE 18-31 MODELS 56TU-Ö, 56TV-O
ALIGNMENT PROCEDURE
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer to the reference line at the end of the dial scale.
2. Connect the output meter across the speaker voice coil.
3. The r.f. signal input from the signal generator should be connected to the external antenna lead.
-B Connect the signal generator ground through a 0.1 mfd. condenser to
(pin 3 on 12SK7 tube
socket).
4. Turn the volume control on full and adjust the signal generator output to produce approximately
mid -scale deflection of the output meter, prevent AVC action in the receiver.
but
maintain
signal
generator
output
as
low
as
possible
to
ALIGNMENT CHART
Alignment adjustment locations are shown on
Chassis, Side View-Models 56TU-O, 56TV-0
Signal Generator Output
Alignment Sequence
Frequency I
In Series
in kc.
with
To
Position of
Adjust for Maximum
Tuning Dial
Output
1
455
200 mmf.
Ant.
1,620
A&B
1,620
200 mmf.
Ant.
1,620
C
3
1,400
200 mmf.
Ant.
1,400
D
.
RRaARCAST S
TRW
UT
CHASSIS, SIDE VIEW ©John F. Rider
TYPE: Five -tube, single band, superheterodyne. FREQUENCY RANGE: 540 to 1600 kc. INTERMEDIATE FREQUENCY: 455 kc.
POWER SUPPLY: a.c-d.c.
VOLTAGE RATING: 105-125 volts. POWER CONSUMPTION: 35 watts nominal. POWER OUTPUT: (E.M. Speaker) 1 watt maximum (P.M. Speaker) 1.75 watts maximum
VOLTAGE DROP ACROSS SPEAKER FIELD:
EXTUPAL 27 volts.
ANTENNA CLIP
When using direct current it may be necessary to reverse the position of the power plug in the electric outlet for correct polarity.
Reversing the position of the power plug when alternating current is used may reduce power hum.
Under no circumstances should a ground be connected to this
receiver,
PAGE 18-32 CROSLEY
MODELS 56TU -0,
56TV-0
CROSLEY DIV. AVCO MFG. CORP.
SOCKET VOLTAGE CHART
Yl
A OF'. -
I,+ I.F. AMPIIFICA
.
MIAfA
POWER OUTPUT
AFfi;F IFA
F. AMPLIFIE/7
MOTES:
I. lotto. VIe. of Sockets.
2. Measure Voltage From Socket logs 'To I. (Pen 3 on the 12567)
3. These Voltages Mere Me.Pwea Using An Electronic Voltmeter
V. Y.J. Wiring Junction;
S. R.C. Mo Connection
6.
40 Cycle S.C. Totteges.
7. Socket Voltage Tolerance. lOS
S. All Voltages are The Same for Receivers Using E.M. Or P.M.
S
. Except where Merkel,
With .; This Voltage is for
P.M. S
Only.
Figures in first column correspond to ligures in Schematic Diagram
Item
No.
Part No.
Description
Item No.
Part No.
Description
1
2 3 3 4 5 6 7A
7B 7C
7D
9 10 12 13 14 15 **16
0.17
*17 18
f* J 19A l 19B
19
í119B
20 21 22
'2243
*25
W-48858 C-132300-1 AC -135506 AC -13748£ A W-135195 AW-137665AW-137667 B-135202
Part of Item #7A Part of Item ñ7B
39001-17 39001-17 39001-73 39001-76 39001-80 39001-80 39001-80 B-136768 AD -135632 39001-17
B-136770
B-135073
39294-38 39294-21 39294-27 39294-34 39294-8 39015-26
Bulb (Dial), Type 47, 6.3 v., .15 amp. 26
Cable and Plug (Power)
27
Antenna Loop & Back Assy. (56TU-O) 28
Antenna Loop & Back Assy. (56TV-O) 29
Coil Assembly (Oscillator)
30A
Transformer (1st. I. F.)_
30B
Transformer (2nd. I. F.)
Condenser (Variable) l Two
Condenser (Variable) f Section Condenser (Trimmer)
**331
Condenser (Trimmer)
34
Condenser, .05 mfd., 600 v., Paper *ne
Condenser, .05 mfd., 600 v., Paper
Condenser, 250 mmf., 600 v., Paper
Condenser, .003 mfd., 600 v., Paper
Condenser, .02 mfd., 600 v., Paper
Condenser, .02 mfd., 600 v.. Paper
Condenser, .02 mfd., 600 v., Paper
Speaker, P. M.
Speaker, E. M.
Condenser. .05 mfd., 600 v., Paper
Two
Condenser, 50 mfd., 150 w.v. Section
Condenser, 30 mfd., 150 w.v.' Elect.
Filter
Two
Condenser, 15 mfd., 150 w.v. Section
Condenser, 15 mfd., 150 w.v. Elect.
Filter
Resistor, 15 megohm, % w.
h Resistor, 22,000 ohm, w. h Resistor, 220,000 ohm, w. h Resistor, 3.3 megohm, w. h Resistor, 150 ohm, w.
Resistor, 1200 ohm, 1 w.
39294-35 39294-29 39294-29 39294-8 B-135127
39368-14 39369-1 B-135077 W-137367
Part of Item #6
39294-21 G-39204 39017-5 AB -135135 W-135074 B-135094 B-135075 W-134916 W-51071 W-131154-1 W-51752 W-134055 W-49770 D-137324 R-135446 R-135444 B-135403 W-137511 W-50325 B-135713 W-135455 W-135454 W-132.124
136571
*These parts are used only on the above models which are equipped with E. M. speakers.
'*These parts are used only on the above models which are equipped with P. M. speakers. These parts will replace the original equipment parts.
Resistor, 4.7 megohm, % w.
h Resistor, 470,000 ohm, w. h Resistor, 470,000 ohm, w. h Resistor, 150 ohm, w.
Control, Volume (1 megohm) 0
Switch (Power) Control (Volume) Switch (Power) Transformer (Output) Resistor, 47 ohm, 1 w.
h Resistor, 47,000 ohm, w. h Resistor 22,000 ohm, w.
Socket,Tube Socket (Dial Light) Plate Assembly (Dial) Pulley (Idler) Pointer (Dial) Shaft (Drive) Washer (Spring) Ring (Retaining) Cotter (External) Spring (Drive Cord) Grommet Stud (Trimount) Cabinet (56TV-0) Cabinet & Handle Assy. (56T1 ' -O) Cabinet, Only (56TU-O) Handle (56TU-O) Spring, Handle (56TU-O) Clip (56TU-O) Dial Glass Knob (56TV-O) Knob (56TU-O) Stud, Trimount (56TU-O) Support , Dial
©John F. Rider
www.americanradiohistory.com
LOOP ANT
35C
ec
7I1!_4 35A
1516E6^
MV 20
CROSLEY DIV. AVCO AVG. CORP.
+r
6
2nd I.F. TRANS.
CROSLEY PAGE 18-33
MODEL 58TH
29 150^
200
t5
T022
23
ñ a
33MEG
470.
~
6
G 0033
47
3
aQ`
30A MEG^
16 VOLUME
T-02 CONTROL
5085 1447
35D 80
p35e Ópp CI ee
17c.st
"p pm
OSC.
COIL
308
455 KC. I E
194I1I 15 rF0
li5'rE0
o 0
7-32
EM SPEANEW
iCHASSIS
SCHEMATIC DIAGRAM -MODEL 58TH (E. M. SPEAKER;
LOOP ANT
EXT ANT
358
114
y ©f0 '©..gyp
ISt I.F 5TRANS
i5 WEGA 20
o
,e VOLUME
T02 CONTROL
5005 1407
350
p C
35e
0 66
C2
p
ó
,p p
OSC COIL
o
308
455 KC. I.F.
ree 50YFO
á n u uOO^ pp 4II
Z OMFG
EA.E4
CHASSIS I
i
1
SCHEMATIC DIAGRAM --MODEL 58T11 ( P. M. SPEAKER
©John F. Rider
www.americanradiohistory.com
PAGE 18-34 CROSLEY
MODELS TH,
58TH -0
t
LOOP ANT
CROSLEV DIV. AVCO MFG. CORP.
COIL
. axKMT Or 111AL URVK CMQ
wTUNIMG CONOCNSEN GANG Twr
-LNuid OF AL CORO
)8:/'.'rROM :o0p 001000
s) ,2 -URNS
SCHEMATIC DIAGRAM ---MODEL 58TH -O
DET. -ARC. .l;t. A.f.AMIL If IER
NITER
'116
.86
- 5
M.J.
' 1 10
©., ' 117
POWER OUTPUT
RECT if IER
1.f . AMpL If IER
:TOTES: I. These
Dolton, vlems oI tour
sutkfls. r J. liessure vullges Iron socket lugs to
-i1 (pin Y or toe 1017)). $. These voltages Were asvrr0 using am
e lefty on lc voltmeter.
Y. N.J.
Sur Ing lunctlon.
5. N.C.
so connect 1On.
6.
bU cycle A.C. voltages.
7. Socket voltage tolerance, Ilr.
II. All voltages
e the 541.4
*Itn A; r eco hers u Ing F.M. or P.C..M.
except None..
speakers.
voltage
or a P`l'.soeaker orly.s
SOCKET VOLTAGE CHART MODEL 58TH
-5.5 S50KC
POWER OUTPUT
RECTIf IER
I.E. ANYLIf IER
I. Bottom VIe, of Sockets.
2. Pleasure voltage From Socket Lugs To 8- (Pun 3 on tte 1 OSAI)
3. These Voltages Were Measured Using
An Electronic Voltmeter
u. O.J. Mining Jonction.
5. M.C. No Connection
6.
60 Cycle A.C. voltages.
7. Socket Voltage tolerance. 106
S.., 8. All Voltages are The
for
Receuvers Using E.M. Or P.M.
Speakers, Eacept Where larked
mutt A; This Voltage Is For
P.M.
Only.
©John F. Rider
SOCKET VOLTAGE CHART MODEL 58TH -0
www.americanradiohistory.com
CROSLEY PAGE 18-3
CROSLEY DIV. AVCO MFG. CORP.
MODELS 58TH, 58TH -O
ALIGNMENT PROCEDURE
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer to the reference line at the end of the dial scale.
2. Connect the output meter across the speaker voice coil.
-B 3. The r.f. input from the signal generator should be connected to the external antenna lead. Connect the
signal generator ground through a 0.1 mfd. condenser to (See Socket Voltage Chart).
II
4. Turn the volume control on full and adjust the signal generator output to produce approximately mid scale deflection of the output meter, but mairtain signal generator output as low as possible to prevent AVC action in the receiver.
ALIGNMENT CHART
Alignment adjustment locations are shown on
Chassis, Side View-Models 58TH, 58TH-O
Al ignment equence
1
Signal Generator Output
Frequency
in kc.
455
In Series with
200 mmf.
To
Position of
Adjust for Maxim um
Tuning Dial
Output
Ant.
1,620
A &B
2
1,620
200 rnmf.
Ant.
1,620
C
3
.1,400
200 mmf.
Ant.
1,400
D
REPLACEMENT PARTS LIST-MODELS 58TH, 58TH -O
Figures in first column correspond to figures in Schematic Diagram.
Item Part No.
No.
Description
1 W-48858
Bulb (Dial), Type 47, 6.3 v., .15 amp.
2 C-132300-2
Cable and Plug Assy., Power
3 AC -135253
Antenna Loop and Back Assy.
4 AW-135195
Coil Assy., Oscillator
5 AW-137665 Transformer, 1st I. F.
6 AW-137667 Transformer, 2nd I. F.
8A B-135056
Condenser, Variable) Two
8B
Condenser, Variable [Section
8C Part of Item 8A Condenser, Trimmer
8D Part of Item 8B Condenser, Trimmer
9 39001-17
Condenser, .05 mfd., 600 v., paper
10 39001-17
Condenser, .05 mfd., 600 v., paper
12 39001-73
Condenser, 250 mmf., 600 v., paper
13 39001-76
Condenser, .003 mfd., 600 v., paper
14 39001-80
Condenser, .02 mfd., 600 v., paper
15 39001-80
Condenser, .02 mfd., 600 v., paper
1716 39001-80 B-136768
Condenser, .02 mfd., 600 v., paper Speaker (P. M.)
$17 B-135082
Speaker (E. M.)
18 39001-17
Condenser, .05 mfd., 600 v., paper
j 19 A B-136770
Condenser, 50 mfd., 150 v. Two Section
`119B
Condenser, 30 mfd., 150 v. (Elect. Filter
+119 A B-135073
Condenser, 15 mfd., 150 v. Two Section
'119 B
Condenser, 15 mfd., 150 v. )Elect. Filter
20 39373-109
Resistor, 15 megohm, 1/2 w.
21 39373-60 22 39373-80
Resistor, Resistor,
22,000 ohm, 220,000 ohm,
2i.lww. .
(58TH -O)
2423 39373-100
'25
39373-16 39373-144
Resistor, 3.3 megohm, z w. Resistor, 150 ohm, ' 1 w. (58TH -O) Resistor, 1200 ohm, 1 w.
t25 39373-47
Resistor, 4700 ohm, '.7 w.
'These parts will replace the original equipment parts. **Used only on models equipped with P. M. speakers.
tUsed only on models equipped with E. M. speakers.
Item Part No. No.
Description
26 39373-102 27 39373-87 28 39373-87 29 39373-16 30 A C-135127
30 B 39368-14
39369-1
3331 B-137723 W-137367
3634 Part of Item 6 39373-60
W-135164 R-135236 W-131154-1 B-135713 W-134055 W-135391 AB -135135 B-135094 W-135074 W-51071 W-135603
B-135075-1 W-46447-1 39017-5
39441
39232-1 W-51752 W-49770 W-134916
Resistor, 4.7 megohm, % w.
Resistor, 470,000 ohm, z w. Resistor, 470,000 ohm, !'z w.
Resistor, 150 ohm, 1¡ w.
Control, Volume (1 megohm) Switch, Power
'Assy.
Control, Volume
Switch, Power
Transformer, Output
Resistor, 47 ohm, 1 w.
Resistor, 47,000 ohm, % w.
Resistor, 22,000 ohm, z?. w. Bumper
Cabinet
Cotter, External
'Dial Glass
Grommet
Knob
Plate, Dial
Pointer, Dial
Pulley, Idler
Ring, Retaining
Screw, Back Mtg.
Shaft, Drive
Shield, Tube
Socket, Dial Light
Socket, Tube (58TH)
Socket, Tube (58TH-O)
Spring, Dial Drive Cord
Trimount Stud (Bottom Mtg.)
Washer, Spring
©John F. Rider
www.americanradiohistory.com
PAGE 18-36 CROSLEY
MOD LS 5: H,
58TH -0
CROSLEY D AVCO MFG. CORP.
o u
G4
E+
e < m 3
..
C7
E 0
F
C7
Et ó ó ó E
tr
! p4 CY
Ñ a N
CO]
IA
E z
©John F. Rider
www.americanradiohistory.com
CROSLE
CROSLEY PAGE 18-37
i I
.
MODELS
XA, :XA-10,
AVCO MFG. CORP. 58XA-20, 58XW, 58XW-10,
xI.If TRAMS.
ry,
4^=©l
58XW-2o
1 ^I EM Lf TRAMS
=_ .Gr2.
1
:r
AUDIO ..TRANS
1 PY
SREARFR
ICHAiSISI
rte OF 43
' DIAL LIOTT
455KC I F
DP
ç
"01E0 IFOO.C.C101
CORO OI
TO LOOP
OF
-FOOM LOOP
SCHEMATIC DIAGRAM CHASSIS TOP VIEW
MEDIUM WAVE OSC, TRIM.
1400 KC.
© SHORT 1
OSC. TRI
OMM
P
TRIM, 7 MC
S.W. ANT. TRIM. I MC
®TROPIC ANT. TRIM 7 MC
M.W. A.1NT:.KC
©John F. Rider
A-2 EXT. ANT. TERM.
A- I DOUBLE DIPOLE TO A -I a A-2
GROUND
www.americanradiohistory.com
PAGE 18-38 CROSLEY
MODELS 58XA, 53XA-10, 58XA-20, 58xw
CROSLEY DIV. MODELS 5c3XW-10, 58XW-20 AVCO MFG. CORP.
ALIGNMENT PROCEDURE
1. Turn the tuning condenser to the completely closed position against the stop, and set the dial pointer to th reference line at the low frequency end of the dial scale.
2. Turn the tone control to the high or treble position.
3. Connect the output meter across the speaker voice coil.
4. The r. f. signal' input from the signal generator should be connected to the external antenna terminal (A-2;
as indicated in the alignment chart. Connect the signal generator ground to the chassis.
II
5. Turn the volume control on full, and adjust the signal generator output to pri.3uce approximately mid-seal deflection of the output meter, but maintain signal generator output as low as possible to prevent AVC actio in the receiver.
1
ALIGNMENT CHART
SIGNAL GENERATOR OUTPUT
Align-
ment Sequence Frequency
In Series with
To
1
455 kc. 200 mmf. Ant. (A-2)
2
21.0 mc.
70 ohm
Ant. (A-2)
Resistor
3
21.0 mc.
70 ohm
Ant. (A-2)
Resistor
4
7.0 mc.
70 ohm
Ant. (A-2)
Resistor
5
7.0 mc.
70 ohm
Ant. (A-2)
Resistor
6
1400 kc. 200 mmf. Ant. (A-2)
7
1400 kc.
200 mmf.
Ant. (A-2)
POSITION OF
Band Switch Knob to
Left Right
PoDiinatler
1650 kc. 21.0 mc.
Right
21.0 me.
Midway
7.0 mc.
Midway
7.0 mc.
Lefi
1400 kc.
Left
1400 kc.
Adjust
Ose.
for
Fre-
Maximum quency
Remarks
A &B C
Above Ground Ant. (A-1).
D
Above Rock gang as trimmer is
aligned.
E
Above Ground Ant. (A-1)
F
Above Rock gang as trimmer is
aligned.
G
Above Remove ground from Ant.
(A-1).
H
Above
ii
NitkpmhielOeoaacgTkgyeEecis:lfnereetWshrqeahuloteeoswnnreeccoaroyunloitgdwnpnhuoitinhtncgeehantirhshdeeec9ate1rusdi0vnheeokarirsltoid-nwtcihayatelhc.vleeetIrsfiimmotslhamocegwieelleiramrftroaaaergsdqejtuuirnecismdantimnccmynaee.otnertTtd(bshCcebery)et,iuwmtnbhaeeeisgdsereuoicrpnfeere,einvttqehheudearetndofrctisoahycmle.ilslcTahtiohtrooceurculhdcittreoibcmmisekpm:awlTeleiegtureannkleiyesedracinldaothjtstuahestndehteegpdtheocenostoeirtfrriueoathncntoedt.rafwrfmerreqoequnnuegteannlpcceyayan,akdn.thdaTeuhnndeoiibtnclcaoerrter9aet1hsc0eet
SOCKET VOLTAGE CHART NOTES
.
I'r, '0 4, E
9NE90LEroET9cCONuTNNP' EOMLr1o.CuaOYtOT,O9Of L9TTCUUN.IEKT.T9N9E1O09Y00r.r0010r1
vwTNL9/fl>J,ß1u©T3 / C,OO1O©3 SMStaILTcUVi.SO,aLoviTssNe.s1s5Wes1narfcgeTW1 MnGIWUOrwMNN"GTP9OIjS4T%IOS
0
1r .r.LK40
dip
0
.50
.5u(
.. 9 s . w.a N9 JYNC TIOr
T onN0 COwwECTIOr
o
-
92
O
G COW ElTIS o
POSES Oland
i99
2%,!
2.9
l90CET
.OrEw
o
©1OA 10
9
199.,99,SJ99r UITv,Ip(O^1
YXI- rwC - IV
I
*MN.s9r12g225sa1c0,
O.
10
90
tei11tfte -it 5- ,..t:fie
' 0
92
NNO VOLLUENC
r ne w
TNO 9VC
9rß sr
--91!_
f 4s:: 201. vi92ib..1
AEC11f.
24! 471._42.
2S
(43411.7:4)
©John F. Rider
www.americanradiohistory.com
MODELS :X00-10, :XW-20
CRQSLEY DIV. AVCO MFG. CORP.
,CROSLEY PAGE 18-3g
MODELS 58XA, 58XA-10 58XA-20, 58XW
MODELS 58XA, (-10) (-20)
MODELS 58XW, (-10) (-20)
DESCRIPTION
TYPE: Five-tube, three-band superheterodyne. FREQUENCY RANGE: Medium Wave Band: 540 to 1600 kc. (555 to 188 meters), Band Switch to left. Tropical Wave Band: 3.0 to 8.0 mc. (100 to 37.5 meters), Band Switch to midway position. Short Wave Band: 8.0 to 22.0 mc. (37.5 to 13.7 meters), Band Switch to right. INTERMEDIATE FREQUENCY: 455 kc. POWER SUPPLY: Models 58XA, 58XA-10, S8XW, 58XW-10, 50-60 'cycle a. c. only. Model 58XA-20, 58XW-20, 25-40 cycles a. c. only. VOLTAGE RATING: Models S8XA, 58XA-20, 58XW, 58XW-20, 105-130 volts. Models 58XA-10, 58XW-10, 210-260 volts.
POWER CONSUMPTION: 50 watts maximum. POWER OUTPUT: 2.5 watts maximum.
TUBE COMPLEMENT
Type
Function
7Q7
Mixer
7A7
I. F. Amplifier
7R7
Detector, AVC,
1st A. F. Amplifier
7B5
Power Amplifier
5AZ4
Rectifier
DIAL BULB: Type 47, 6.3 volts, .15 amp.
Item
No.
1
2
3 4
5 6 7
8
9 10
11 12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
Part No.
AB -138744
AB -138745 B-138692 39373-275 39373-23 39373-40 39373-67
39373-80 39373-74 39373-87 39373-92 3937397 39373-107 39372-7 39373-67 39373-92 39001-74 39001-17 39001-11 39001-11 39001-13 39001-13
391101-13 39001-17 39001-17
39001-1 39001-19 137727-25 137727-25 137727-25 137727-31 137727-25 137727-25 137727-25 137727-25 137498-18 137498-21 137498-20 W-142439 W-138820 W-138820
42 A B-139726 42 B
42 A B-138693 42 B
43 A B-132386-7 43 B 43 C
REPLACEMENT PARTS LIST-
Figures in first column correspond to figures in Schematic Diagram
Description
Transformer, 1st I. F.
Transformer, 2nd I. F.
Transformer, Output
Resistor, 12,000 ohm, 2 w.
) Resistor, 330 ohm, ), w.
Resistor, 2200 ohm, w.
Resistor, 47,000 ohm, w.
Resistor, 220,000 ohm, w.
4 Resistor, 100,000 ohm, w.
Resistor, 470,000 ohm, )4 w.
Resistor, 1 megohm, 3/ w. Resistor, 2.2 megohm, 3.¡ w.
Resistor, 10 megohm, >. w.
Resistor, 1500 ohm, 3 w.
Resistor, 47,000 ohm, .4 w.
Resistor, 1 megohm, 4 w. Condenser, .002 mfd., 600 v., paper
Condenser, .05 mfd., 600 v., paper
Condenser, .005 mfd., 600 v., paper
Condenser, .005 mfd., 600 v., paper
Condenser, .01 mfd., 600 v., paper
Condenser, .01 mfd., 600 v., paper
Condenser, .01 mfd., 600 v., paper
Condenser, .05 mfd., 600 v., paper
Condenser, .05 mfd., 600 v., paper
Condenser, .0001 mfd., 600 v., paper
Condenser, .1 mfd., 600 v., paper
Condenser, 100 mmf., 500 v., ceramic
Condenser, 100 mmf., 500 v., ceramic
Condenser, 100 mmf., 500 v., ceramic
Condenser, 47 mmf., 300 v., ceramic
Condenser, 100 mmf., 500 v., ceramic
Condenser, 100 mmf., 500 v., ceramic
Condenser, 100 mmf.; 500 v., ceramic
Condenser, 100 mmf., 500 v., ceramic
Condenser, 4500 mmf., 300 v., mica
Condenser, 526 mmf., 300 v., mica
Condenser, 4000 mmf., 300 v., mica
Condenser, Trimmer
Condenser, Trimmer
Condenser. Trimmer
Condenser, 50 mfd., 400 v. Condenser, 30 mfd., 350 v.
Two Sec. Elec. 58XA-20 58XW-20
Two Sec. Elec. Condenser, 50 mfd., 400 v. 58XA, 58X W, Condenser, 30 mfd., 350 v. 58XA-10
J 58X W-10
Condenser, Trimmer Condenser, Trimmer Condenser, Trimmer
Three Section Assembly
Item
No.
44 45
Part No.
138246 39368-18
39370-2 39369-1
46 W-138775
48 A AC -137073-10 48 B
49 B-138691
50 W 48858 51 C-132300-1
53 A W-138746 54 AW-138743 55 A AW-138747 55 B 56 A W-138689 57 B-138076 58 B-138844 59 B-138845 60 39439-3 61 W-48858
62 C-137727-52
AB -138766 C-137750
R-138573-1 A W-138663 D-143173 W-134055 B-138574-5 B-138575-5 B-138576-5 B-138574-2 B-138575-2
B-138576-2 W-49829 W-46065 B-143142 W-137939-1 W-51071-CP W-136613-3CP 39220-36CP B-135075-5
39440 D-136565-16 W-51752 W-138568 B-138649
AC -138443-1 W-132124-SB W-134916
Description
Speaker (Less Transformer)
Control, Volume (1 meg., Tap 300,000 ohm.)
Shaft, Volume Control
Switch, Power
Switch, Tone
Condenser, Condenser,
Variable Variable
. Two }
Section
Switch, Band Change
Bulb (Dial), Type 47, 6.3 v., .15 amp. Cable &Plug Assy., Power
Coil, Antenna
Coil, Antenna (Med. Wave)
Coil, Oscillator (Trop. & S.W.) Two
Coil, Oscillator (Trop. & S.W.)}Section
Coil, Oscillator (Med. Wave)
Transformer, Power (58XA) (58XW)
Transformer, Power(58 X A-20) (58X W-20)
Transformer,Power(58XA-10) (58X W-10)
Terminal Board
Bulb (Dial), Type 47, 6.3 v., .15 amp.
Condenser, 12 mmf., 500 v., ceramic
Arm & Link Assy., Toggle
Back, Cabinet
Cabinet (58XA, 58XA-10, 58XA-20)
Cabinet (58XW, 58XW-10, 58XW-20)
Dial Glass
Grommet, Var. Cond. Mtg.
Knob (Volume & Tuning) 58XA,
Knob (Band Change) }58XA-10,
Knob (Tone)
J 58XA-20
Knob (Volume & Tuning 58XW,
Knob (Band Change)
58X W-10,
Knob (Tone)
J 58X W-20
Lock Spring, Dial Drive Bearing
Mounting Rubber, Speaker Bracket
Pointer, Dial
Pulley, Dial Drive Idler
Ring (Retaining), Dial Drive Shaft
Screw, Dial Glass Strip
Screw, Chassis Mtg.
Shaft, Dial Drive
Socket, Tube
Socket, Dial Light
Spring, Dial Drive Cord
Strip, Pointer
Strip. Dial Glass
Support & Pulley Assy., Dial
Trimount Stud
Washer (Spring), Dial Drive Shaft.
©John F. Rider
www.americanradiohistory.com
PAGE 18-40 CROSLEY MOJEL E6 C S( O)
CROSLEY DIV. AVCO MFG. CORP.
ix
O n0o
1
H81 '
8
00000
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o
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o
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©jt''rì
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©John F. Rider
RECOHJ C. r.rdGER : Oak Model 6666, RCD. CH. 15-1
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
E 18-41
MODEL 66CS (0 )
ALIGNMENT PROCEDURE
1.
Turn the tuning condenser to the reference line at the end
the completely closed of the dial scale.
position
against the stop and set the dial pointer to
2. Connect the output meter across the speaker voice coil.
3. 4.
sivTTcneahudnlerietncradA.tteehVff.dleCescivintagoicnolttunahimoleoniefnaipltcnihuogettnnhtfmoerrouoeltrmnpeotcunettchihfmveuaeelrsrltt.i.egarnnC,daoblnuagntdeejmncuteasrtitahnttetohaerilnosswhtihogsuenildadsleiggb(negeanrloceourgannetndnoe)ercrootaefutdottphrtueootusttitohgpenupatrleoaxdgstueeclnroenewaraalpatspoarrnpototxoesinsmtinhbaaelteecplthyooasmstpsriiadess--.
NOTE:
The Signal Web suitable dummy
antenna must remain connected, or if the chassis loop antenna should be connected in its place.
is
removed
from
cabinet,
a
Alignment
adjustment
locations
are
ALIGNMENT shown on
CHART Chassis,
Rear
View-Model
66CS(0)
Alignment
Signal Generator Output
Frequency kc.
Indt es
To
Position of
Switchh
Tuning TuDnial
Adjust for Maximum Output
1
455
200 mmf.
Ant.
A
1620
A & B
2
455
200 mmf.
Ant.
A
1620
C*
3
15,300
400 ohms
Ant.
()
15.3
D
4
15,000
400 ohms
Ant.
0
15.0
E
5
1620
200 mmf.
Ant.
A
1620
F
6
1400
200 mmf.
Ant.
A
1400
G
7
600
200 mmf.
Ant.
A
600
H
8
1400
200 mmf.
Ant.
A
1400
Recheck G
*Adjust for Minimum Output Wave Trap).
NOTE:
and not in signal audible, adjusted
Wbagtuothetetnthnwheeereaaaitmlwkoigearrnrogfinernteghgqfarupenteheqnaeuthkce.ey"nO,Tcfvtyhuheenerwdsncehaoiaimncrschre"erneciatostasslpe9ce1firlta0lehak' qetkouiislgreoenc(tnchyDyece.)rle,assIteobf cerloothonwseduuertreppimeuinatathkgfaaeronet dfqtcuthahteeunennncceotirytriicmnaubsmeittheinteiursdniifcmearoadlaimtgegnidenet,hdofrenethaqcettluhoeetsohneseddcciyaicplll.ooawrstThroieotiriccohtcntrh.ifsemrhecomkqu:ueldetrunncbieyes
SOCKET VOLTAGE CHART
OSCILLATOR GRI VOI TAGS_
0-_ - - 1 Ii.O FREQUENCY
VOWS
700 RC
ANRO:I
44, s.1111.0
AI005.7.5
0
,lere/Oree I.F. AMPLIFIER- -
265
QO
e®EipyA
''116SK7All
0
I
I
0© 6.3*
60
44.10
DET. AVG. IST. A.F..-.-
0
0
'' 0
©AIFI
SC. )110
e©0m1©s0y e.3R
I
I I
L.
OTCV
W 3
AUDIO
260 Le6V6"O
6.3
OUTPUT 250
0 GT/G -4U
©©©oeO
3.51
NOTES.
I. Terse are Cotton views of sockets.
2. Iraaure voltages fro, socket lug to
chassis. 3. These voltages seasnred using an
e 'neon ic vol teeter . 0. 4.J. - Mirinq .lurct ion 5. N.C. -Ito connection
6. ' - 60 Cycle AC Voltage. 7. Socket Voltage Tolerance 105
6. Line Voltage- 117 S.-60 ...AC
POWER TRANSFORMER
MIXER RF AMPLIFIER
RECTIFIER
`Z© 04 eo
Ieltary' ooloe I 265
ewe A 6.3'
W3 320*
O i'_4O `ZO ©i©oe efe
ZO 310
w..)
K©%
u ©©1
o1
11439- I
0
o
5
©0 5Y3
GT/G
Y©
eAlll
Oe
B0
%óo&
0
o
0
0 0 200
6 3*
3a0 320
SOCKET VOLTAGE TOLERANCE: IOrï;
©John F. Rider
www.americanradiohistory.com
PAGE 18-42 CROSLEY
MODEL 66CS(0)
CROSLEY DIV. AVCO MFG. CORP.
TUBE COMPLEMENT:
Type 6SA7 (GT/G) 6SK7 (GT/G) 6SK7 (GT/G) 6SQ7 (GT/G)
6V6 (GT/G) 5Y3 (GT/G)
Function
Mixer R. F. Amplifier I. F. Amplifier Detector, AVC, 1st A.F.
Amplifier A. F. Power Output Rectifier
DIAL BULB: Type 51, 7.5 volts, .25 amp.
TYPE: Six -tube, two-band, superheterodyne.
FREQUENCY RANGE: American Broadcast
Band, 540 to 1600 kc. (Selector Switch at A.)
Overseas Short-wave Band, 5.8 to 15 mc. (Selector Switch at O.)
INTERMEDIATE FREQUENCY: 455 kc. POWER SUPPLY: 60 cycle a. c. only. VOLTAGE RATING: 105-125 volts. POWER CONSUMPTION: 65 watts maximum, 20 watts additional for record changer. POWER OUTPUT: 4.5 watts maximum.
WAVE TRAP TRIM
a- "OVERSEAS" ANT. TRI
®-"AM
OSC. T
OVERSEAS OSCILLATOR
TRIMMER
55
455 KC
2ND. I.F TRANSE TRIMMER
PHONO PICKUP
BROWN
ORANGE,Bi YE OW
EXTERNAL ANT. EXTERNAL GND.
AMER"
ANT. PADDER
"AMER"
ANT TRIMMER
GND.
NOT USED HIGH SIDE
CHASSIS, REAR VIEW-MODEL 66CS(0)
©John F. Rider
www.americanradiohistory.com
RED Ei BL BLUE
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-43
MODEL 66CS(T
REPLACEMENT PARTS LIST-MODEL 66CS(0)
Fgures in first column correspond to figures in Schematic Diagram.
Item No
Part Number
Description
tem INo
Part Number
1 39373-44 2 39373-60 3 39373-275 4 39373-97 5 39373-143 6 39373-97 7 39373-84 8 W-137143 10 B-138131-2 11 39373-67 12 39373-87 13 39371-5 14 39373-133 15 39373-64 16 39373-102 17 39373-60 18 39373-74 19 39001-73 20 39001-73 21 39001-17 22 39001-73 23 39001-17 24 39004-5 25 39001-11 26 39001-13 27 39001-73 30 39001-11 32 W-30805 33 39001-11 34 39001-13 35 B-226638-53 36 210685-143 37A 134995 37B 33A 137076 38B 38C 38D 39 AW-134065 40 AW-134158 41 B-134625 42 W-43567 43 W-43567 44 B-135651 * 39368-10 45 B-135859
Resistor, 3,300 ohm, 1/2 w.
Resistor, 22,000 ohm, 1 w.
*
Resistor, 12,000 ohm, 2 w.
Resistor, 2.2 megohm, 381 w.
46
Resistor, 1,000 ohm, 1 w.
47
Resistor, 2.2 megohm, 1/2 w.
48
Resistor, 330,000 ohm, 1 w.
49
Antenna (Transmission Line)
51
Transformer, Output
52A
Resistor, 47,000 ohm, 14 w.
52B
Resistor, 470,000 ohm, 1/9 w.
53
Resistor, 1,000 ohm, 5 w.
54
Resistor, 330 ohm, 1 w.
55
Resistor, 33,000 ohm, 1/2 w.
57
Resistor, 4.7 megohm, 1/2 w.
58
Resistor, 22,000 ohm, 1 w.
62
Resistor, 100,000 ohm, 1/2 w.
63
Condenser, .00025 mfd., 600 v., paper 64
Condenser, .00025 mfd., 600 v., paper
Condenser, .05 mfd., 600 v., paper
Condenser, .00025 mfd., 600 v., paper
Condenser, .05 mfd., 600 v., paper
Condenser, 50 mmf., 5Ó0 v., mica
Condenser, .005 mfd., 600 v., paper
Condenser, .01 mfd., 600 v., paper
Condenser, .00025 mfd., 600 v., paper
Condenser, .005 mfd., 600 v., paper
Condenser, .01 mfd., 400 v., paper
Condenser, .005 mfd., 600 v., paper
Condenser, .01 mffd., 600 v., paper
Condenser, 50 mmf., 500 v., ceramic
Condenser, 580 mmf., 300 v., mica
Condenser, Variable i Two
Condenser, Variable i Section
Condenser, 40 mfd., 450 w. v. Four
Condenser, 20 mfd., 450 w. v. Section
Condenser, 20 mfd., 450 w. v. Elect.
Condenser, 20 mfd., 25 w. v. 1 Filter
Transformer, 1st I. F.
Transformer, 2nd I. F.
Transformer, Power
Bulb (Dial), Type 51, 7.5 v., .25 amp.
Bulb (Dial), Type 51, 7.5 v., .25 amp.
Control, Tone (3 megohm)
Control, Tone
Control, Volume (1 megohm) & Switch
*These parts will replace the original equipment parts.
`39368-18 j 39369-1 ( 39370-1 W-132267-1 B-132300-1 39019-3 39019-3 W-134968-1 B-134639
AW-135907 AW-135908 AW-135909 AW-135910 B-137082 B-132386-7
G-39012-8 G-39204 39017-3 AW-134793 B-134571 W-134667 W-51752 W-134917 W-51071 W-134916 W-132366-2 39196-29 W-134055 R-139206 C-134773 D-137057 AB -134935 W-134959 W-135248 W-45580 W-45580 W-23880 W-134966
AW-134961
.
AC -137885 W-138330
Description
Control, Volume Switch, Power Shaft, Plug-in Condenser, Trimmer Cable & Plug Assy., Power Terminal Board Assy. Terminal Board Assy. Socket, Speaker Switch, Band Change I Two Switch, Band Change Section Coil Assy., R. F. Coil Assy., Osc. Coil Assy., Ant. Coil Assy., Ant. Loading Speaker & Transformer Assy. Condenser, Trimmer Three Condenser, Trimmer l} Section Condenser, Trimmer Assy. Core, Iron Socket, Tube Socket, Dial Light Face Assy., Dial Pointer, Dial Clip, Dial Pointer
Spring, Dial Cord Shaft, Drive Ring, Retaining Washer, Spring Nut, Iron Core Locking Screw, Dial Mtg. Grommet, Variable Condenser Mt g. Cabinet Lens, Dial Record Changer (Model "O D") Floating Jewel Needle Assy. Cable, Phono Knob Rubber Mounting., Speaker Rubber Mtg., Chassis Thumbscrew, Chassis Mtg. Nut, Spring Lock
(Record Changer Mtg.) Lead Assy., Shielded
(Record Changer) Lid Support, Cabinet Hinge, Cabinet Lid
©John F. Rider
www.americanradiohistory.com
PAGE 18-44 CROSLEY I10DEL CT
CR S SLEY DIV. AVCO MFG. CORP.
39 I F TRAI
Q Q
Q
j30 005
LOOP
e O
48
22MEG-
QQo C
0Q 0C
CDLIC:5
599
0
00025 YF
47000011
HSpA1MF I
OOj00^
L
9 .
iQ 5
52
VOLUME CONTROL
45
G
0 1
br64
44
3
TONE
CONTROL
0
; 2 QI 2 ñ
313
5
I6 4.7MEG R
11.
Q 0
SPEAKER PLUG PIN ENO v6W
BANO SWITCH SHOWN IN PHONO POSITION BAND SWITCH SEQUENCE, CLOCKWISE ROTATION, IS PRONO, BROADCAST, SHORT WAVE
!
61 PORT OF 45
SOCKET VOLTAGE CHART
56 SB c8 29 3
DSCI L AT OR GRID
SAND
FREQUENCY
S AMERICAN I SSO NC
OVERSEAS
M.0
VOL TAS LS VOLTS
APROX:It .O
APPROX.-7.3
I.F. AMPLIFIER
265
6.3 80
-y260
AUDIO OUTPUT
250
I10
6.3* wJ 6.3*
13.5
NOTES
I. THESE ARE BOTTOM VIEWS OF SOCKETS.
2. MEASURE VOLTAGES FROM SOCKET LUG TO CHASSIS.
3. THESE VOLTAGES MEASURED USING AN ELECTRONIC VOLTMETER.
4. W J - WIRII NG JUNCTION.
5. NC - NO CONNECTION.
* 6
- 60 CYCLE AC VOLTAGE.
POWER TRANSFORMER
MIXER RF. AMPLIFIER
RECTIFIER WJ 320*
60
265
BO
SOCKET VOLTAGE TOLERANCE: 10%
TYPE: Six-tube, two-band, superheterodyne. FREQUENCY RANGE: American Broadcast Band,
540 to 1600 kc. (Selector Switch at A.)
Overseas Short-wave Band, 5.8 to 15 mc. (Selector Switch at 0.)
INTERMEDIATE FREQUENCY: 455 kc.
POWER SUPPLY: 60 cycle a. c. only.
VOLTAGE RATING: 105-125 volts.
POWER CONSUMPTION: 60 watts maximum. POWER OUPUT: 4.5 watts minimum.
VOLTAGE DROP ACROSS SPEAKER FIELD: 76 volts. RESISTANCE OF SPEAKER FIELD: 900 ohms.
©John F. Rider
RECORD C
3eT.'Öur Model K, RCD.CH. 15-2
www.americanradiohistory.com
CROSLEY PAGE 18-45
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
MODEL (36CT
1. Turn the tuning condenser to the completely closed position against the stop and set the dial pointer to the reference line at the end of the dial scale.
2. Connect the output meter across the speaker voice coil.
3. The r. f. signal input from the signal generator should be connected to the external antenna post as in-icated in the alignment chart. Connect the low side (ground) of the signal generator to the chassis.
4. Turn the volume control on full and adjust the signal generator output to pro'uce approximately mid-
scale deflection of the output meter, but maintain the signal generator output as low as possible to prevent
AVC action in the receiver.
Alignment adjustment locations are shown on
Chassis, Rear View
Alignment
Sequence
Signal Generator Output
Fyrequency
In Series
To
in kc.
With
Position of
Band Switch
Tuning
Dial
Adjust for Mazimum Output
1
455
200 mmf.
Ant.
A
1620
A & B
2
455
200 mmf.
Ant.
A
1620
C
3
15,300
400 ohms
Ant.
0
15,300
D
4
15,000
400 ohms
Ant.
0
15,000
E
5
1620
200 mmf.
tint.
A
1620
F
6
1400
200 mmf.
Ant.
A
1400
G
7
600
200 mmf.
Ant.
A
600
H
8
1400
200 mmf.
Ant.
A
1400
Recheck G
Adjust for Minimum Output (Wave Trap). atawNhntreOdotnhnTaegiEuni:dpcmireWbeaalakgheseee9nof1tfrhae0elqtihkuggeienleonitnncrceigyymrcaltwmehtoseherirl"cooOhfwurvtoeipsemrur9ost1ent0iahnstekdh"ieclotoluorschecsyceiecldelliieanvpstoeotlrhrsoiewtdtriioeiiammrnl..aamIgsfeeirntfhdr(eeDicq)iaum,teebandegceyeb.uycrTaetnhhnetehoiratmetcbateeghieevtuefcrnrieerdqcdiuuaeilit.nnc,iTsyotahcsleihhgoeoncuseklcdd:illatbautetnotwehreetirancikmotehrrmreetehgcratennfisreetrhaqaedtuojefurnuscfntryededaaqmnutdoeennntchtyoae,tl
O
WAVE TRAP TRIM
O "OVERSEAS" ANT. TRI
b
i_
I0-"AMERICAN" OSC. T'
TRANSE.
A
OVERSEAS
OSTRCILLATORIMMER
- 65
*
--
«
11
O
455 KC
2ND. I.F T ANSE TRIMMERR
5YIG .,
art
..._., 4 i
StlrY
455 KC
1ST I.F..
a
TRANSE.'
TRIMMER'
äy. ,.
,i
LOOPS
PHONO PICKUP
OR
TE,VISION SOUND
imi
EXTERNAL ANT. EXTERNAL GND.
OO
"AMER.""AMER."
ANT.
ANT.
PADDER
TRIMMER
GND. NOT USED
HIGH SIDE
©John F. Rider
°
ORA >'
ti' LOW
RED 9 BLS. BLUE
CHASSIS, REAR VIEW
www.americanradiohistory.com
PAGE 18-46 CROSLEY
MODEL 66CT
CROSLEY DIV. AVCO MFG. CORP.
PARTS LIST- MODEL 66CT
Item No.
Part Number
Description
Item No.
Part Number
Description
1 39294-16
2 39294-21
3 39016-38 4 39294-33 5 39040-13 6 39294-33 7 39294-28
8 B-138131-2 11 39294-23
12 39294-29 14 39015-19
16 39294-22 16 39294-35 17 39294-21
18 39294-25 19 39001-73
20 39001-73
21 39001-17 22 39001-73 23 39001-17 24 39004-5
26 39001-11 26 39001-13
27 39001-73
30 39001-11 32 W-30805
33 39001-11
34 39001-13 35 B-226638-53 36 GC-210685-143 37A B-134996 37B 38A B-132807 38B 38C 38 D 39 AW-137495 40 AW-134158 41 B-134625 42 W-43567 43 W-43567 44 B-135651
39368-10 46 B-135859
39368-18
39369-1 39370-1
46 W-132267-1 47 B-132300-1 48 39019-3 49 39019-3 51 W-134968-1
62A B-134639 62B 63 AW-135907 64 AW-135908 55 AW-185909 56 B-134700 67 AW-135910
3 Resistor, 3300 ohm, % w.
Resistor, 22,000 ohm, w.
5 Resistor, 12,000 ohm, 2 w.
Resistor, 2.2 megohm, w. Resistor, 1,000 ohm, 1 w. Resistor, 2.2 megohm, )4 w. Resistor, 330,000 ohm, % w. Transformer, Output
h Resistor, 47,000 ohm, w.
Resistor, 470,000 ohm, i/ w.
Resistor, 330 ohm, 1 w. Resistor, 33,000 ohm, 3/ w. Resistor, 4.7 megohm, IA w. Resistor, 22,000 ohm, 34 w. Resistor, 100,000 ohm, % w. Condenser, 260 mmf., 600 v., Paper Condenser, 260 mmf., 600 v., Paper Condenser, .05 mfd., 600 v., Paper Condenser, 250 mmf., 600 v., Paper Condenser, .05 mfd., 600 v., Paper Condenser, 50 mtnf., 500 v., Mica Condenser, .005 mfd., 600 v., Paper Condenser, .01 mfd., 600 v., Paper Condenser, 250 mmf., 600 v., Paper Condenser, .006 mfd., 600 v., Paper Condenser, .01 mfd., 400 v., Paper Condenser, .005 mfd., 600 v., Paper Condenser, .01 mfd., 600 v., Paper Condenser, 60 mmf., 500 v., Ceramic Condenser, 680 mmf., 300 v., Mica Condenser, Variable 1 Two Condenser, Variable (Section Condenser, 20 mfd., 360 w.v. Four Condenser, 20 mfd., 275 w.v. Section Condenser, 20 mfd., 245 w.v. Elect. Condenser, 20 mfd., 26 w.v. Filter Coil Assy., 1st. I.F. Coil Assy., 2nd. I. F. Transformer, Power Bulb (Dial), Type 61, 7.5 v., 0.2 amp. Bulb (Dial), Type 51, 7.6 v., 0.2 amp. Control, Tone (3 megohm) Control, Tone Control, Volume (1 meg.) & Switch Amy. Control, Volume Switch, Power Shaft, Volume (Plug in) Condenser, Trimmer Cable & Plug Assy. (Power) Terminal Board Assy. Terminal Board Assy. Socket, Speaker Switch, Band Change) Two Switch, Band ChangejSection Coil Assy., R. F. Coil Assy., Oscillator Coil Amy Antenna Speaker & Transformer Amy. Coil Assy., Antenna Loading
62 B-132386-7
Condenser, Trimmer) Three
63
Condenser, Trimmer Section
64
Condenser, Trimmer) Assembly
65 Partof Item# 37B Condenser, Trimmer
G-39204
Socket, Tube
39017-4
Socket, Dial Light
G-39012-8
Iron Core
W-132366-2 Nut, Locking (Iron Core)
AW-134793
Face Amy., Dial
B-134571
Pointer, Dial
W-134667
Clip, Dial Pointer
W-61752
Spring, Dial Drive Cord
W-134917
Shaft, Drive
W-51071
Ring, Retaining (Drive Shaft)
W-134916
Washer, Spring (Drive Shaft)
W-134055
Grommet (Var. Cond. Mtg.)
39196-29
Screw (Dial Mtg)
39172-200
Screw, Chassis Mtg. (Front)
W-45580
Grommet, Chassis Mtg.
W-137199
Nut, Tee (Chassis Mtg)
R-138151
Cabinet
C-134773
Lens, Dial
W-137201
Pull, Drawer
W-135248
Knob
D-134945-1
Record Changer (Model "K")
AW-138145
Shielded Wire Amy.
61 W-137213
Cable & Plug Amy. (Phono.)
W-134956
Nut, Tee (Record Changer Mtg.)
W-134966
Nut, Spring Lock (Record Changer Mtg.)
AW-137232
Screw & Washer Amy. (Record Changer
Mtg.)
C-137173
Album (12' Record)
C-137236
Album (10' Record)
AB -134936
Needle, Floating Jewel Assy.
These parts will replace the original equipment parts.
TUBE COMPLEMENT:
Type
Function
6SA7 (or GT/G) 6SK7 (or GT/G) 6SK7 (or GT/G)
Mixer R. F. Amplifier I. F. Amplifier
6SQ7 (or GT/G)
6V6 GT 5Y3 G
Detector, AVC, 1st A.F, Amplifier
A. F. Power Output Rectifier
DIAL BULB: Type 51, 7.5 volts, .25 amp.
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-47
MODELS 66XTA, 66XTA-10, 66XTA-20
61
LOOP
r
e
S 4
o o p o
WO SWOON 91015111 IN MONO POSITION .WD SMITUI SEOUENCE, CLOGIIMISE NOT6TIO6, IS PIgNO, 66060065TSNO6T NONE
1,0000
6
23
21WOG
01
]
))0,000
á 3 %.i
?R R «
-1 ri ñ ñ
z )e
VOLUME CONTROL
33
005
C n g
CONTROL
O
- O
CD
00
d o
O
á =
2
)
ó
ó
I)
57.746E4 50C6ET
SPE66EN PLUG
PIS ENO v[N
rQQ900i
I
I
e 10
CHASSIS, REAR VIEW
©John F. Rider
www.americanradiohistory.com
EAKER PLUG SOCKET
PAGE 18-48 CROSLEY
MODELS 66XTA,
66XTA-10, 66XTA-20
CROSLEY DIV. AVCO MFG. CORP.
ALIGNMENT PROCEDURE
1.
Turn the tuning capacitor to the completely reference line at the end of the dial scale.
closed
position
against the stop,
and set
the
dial pointer to 1 he
2. Turn the tone control to the high or treble position.
3. Connect the output meter across the speaker voice coil.
4. The r. f. signal input from the signal generator should be connected to the external antenna post. the signal generator ground to the chassis.
Conn( ct
j
5.
Turn the volume control on full, and adjust deflection of the output meter, but maintain in the receiver.
the signal generator output to signal generator output as low
produce approximately mid-sc, as possible to prevent AVC acti
le on
6. Loop antenna must be connected when making alignments.
ALIGNMENT CHART
Alignment Sequence
1
2 3 4 5
6
7
.8
Signal Generator Output
Frequency in k c.
In Series with
To
455
200 mmf.
Ant.
455
200 mmf.
Ant.
15,500
400 ohms
Ant.
15,000
400 ohms
Ant.
1650
200 mmf.
Ant.
1400
200 mmf.
Ant.
600
200 mmf.
Ant.
1400
200 mmf.
Ant.
Position of
Band Switch
M
M
S S
M
M
M M
Tuning Dial
1650 KC 1650 KC 15.5 MC 20 M 1650 KC 1400 KC 500 M 1400 KC
1
Adjust for Maximum, Output
1
A &B C* D E
F
G H
Recheck G
i *Adjust for minimum output (wavetrap). NitkpmhieOleaaokgTcgeyEeicsn:flreeteWhsrqaeluhtooeeswrenncceooyarunloitwdgnpnhuoitintnhcgeheantrihhesdece9aet1ruisd0vhneoekarrisltido-ntiwchayltea.hcvletIeerfsiiommtlshomcaewgieleilermartfaaaordsegrqjeiutunrcsediatmnimnccmnayeto.neetrtdTh(shbDecery)et,iuwtmhnbeaeeigsdrseeouicnprfee,erienvttqheehuedraedtonf:irstcaohcylmi.elslTachtotihooreucrculhcdtieroticmmbiksep:malTweleitrugeennaliyskeedearicdnlatojthtushaestedhnteegdtpehcontoesoerirrtftieauhoctnneotd.rfwafrmrereoqeqnunugeteannplcceyayank,ad.nthdTaehunnedoiitbcnolcaerrtere9athc1sete0
TYPE: Six -tube, two band superheterodyne with ter minais provided for record player.
FREQUENCY RANGE: Medium wave band: 540 to 1650 kc. (555 .to 182 meters), Band Switch at (M). Shortwave Band: 4.7 to 15.5 mc. (63 to 19.35 meters), Band Switch at (S). INTERMEDIATE FREQUENCY: 455 kc. POWER SUPPLY: Models 66XTA, 66XTA-10, 5060 cycle a. c. only. Model 66XTA-20, 25-40 cycles a. c. only.
VOLTAGE RATING: Models 66XTA, 66XTA-20, 105-125 volts. Model 66XTA-10, 210-250 volts. POWER CONSUMPTION: 60 watts maximum. POWER OUTPUT: 4.5 watts maximum.
TUBE COMPLEMENT
Type
6SK7 6SA7 6SK7 6SA7
6V6 GT/G 5Y3 GT/G
Fitnc tion
R. F. Amplifier Mixer I. F. Amplifier Detector, AVC, 1st A. F. Amplifier Power Amplifier Rectifier
DIAL BULB: Type 51, 7.5 volts; 0.2 amp.
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-49
MODELS XTA, 66XTA-10, 66XTA-20
SOCKET VOLTAGE CHART
wr.. ., OIOT
.1 á(.C4.11r{T7T7HH-.yy'-_wj..t
..(
,
Lí. YPLUIE
tit
u
w
DE T. avC.IeTA.c AIPCPIEA 110
ve NI OOTTPEl,Ys-ecteers00Tre
t
Rase« Wad T
.wreuTOsecs111t10s
1 'MN vaTNs EOWItO
1I0 uvsOue.lTetee.eCT0e11C J00CTIO1.
I C-c0MCTMoe
1 - OC cicli C vO.Ts1
tefaeT PAM IacPMCe,p\
"se remote ,ma
mint)
POSE It
TItANSTOMtEIe
,..1 M(I Ilev. 44...
:( -11!.
.
"' AOUUDIOTPUT
t./
no
..yv.1
Figures in first column correspond to figures in Schematic Diagram
Item Part No.
No.
Description
1. 39373-38
2 39373-60
3 39373-275
4 39373-97
5 39373-143
6 39373-97
7 39373-84
9 B-138131-2
10 C-135933
11 39373-67 12 39373-87
13 39371-5
14 39373-133
15 39373-64
16 39373-102
17 39373-60 18 39373-74
19 39004-9
20 39004-9
21 39001-17
22 39004-9
23 39001-17
24 39004-5
25 39001-11
26
39001-13
27
39004-9
28 210685-188
19 210685-165
10
39001-11
12
W-30805
13
39001-11
14
39001-13
15 39004-5 i7A B-136207 7B
3 BA B-135934
gas
3 sC
BD
3
B-137372
38AB 3 8C
3 8D
39 AW-137495
40 AW-134158 4 1 B-135937
Resistor, Resistor, Resistor,
3300 ohm, 3/ w. 22,000 ohm, 32 w. 12,000 ohm, 2 w.
Resistor, 2.2 megohm, mow. Resistor, 1,000 ohm, 1 w.
Resistor, 2.2 megohm, % w.
Resistor, 330,000 ohm, Transformer, output
32
w.
Speaker and Transformer Assy.
Resistor, Resistor,
47,000 ohm, % 470,000 ohm,
w. w.
Resistor, 1,000 ohm, 10 w.
3 Resistor, 330 ohm, 1 w.
Resistor, 33,000 ohm, w.
Resistor, Resistor, Resistor,
4.7 megohm, '/2 w. 22,000 ohm, % w. 100,000 ohm, % w.
Condenser, 220 mmf., 500 v., mica
Condenser, 220 mmf., 500 v., mica
Condenser, .05 mfd., 600 v., paper
Condenser, 220 mmf., 500 v., mica Condenser, .05 mfd., 600 v., paper
Condenser, 50 mmf., 500 v., mica
Condenser, .005 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper
Condenser, 220 mmf., 500 v., mica
Condenser, 5600 mmf., 500 v., mica Condenser, 500 mmf., 500 v., mica Condenser, .005 mfd., 600 v., paper
Condenser, .01 mfd., 400 v., paper
Condenser, .005 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper
Condenser, 50 mmf., 500 v., mica
Condenser, Variable! Two
Condenser, Variable f Section
Condenser, 40 mfd., 360 w.v. Four SecCondenser, 20 mfd., 275 w.v. tion Elec. Condenser, 20 mfd., 245 w.v,. Filter used Condenser, 20 mfd., 22 w.v. on Models
66XTA,
66XTA-10 Condenser, 40 mfd., 360 w.v. Four SecCondenser, 20 mfd., 275 w.v. tion Elec. Condenser, 20 mfd., 245 w.v. Filterused
Condenser, 20 mfd., 22 w.v. on Model
66XTA-20
Transformer, Assy., 1st I. F.
Transformer Transformer.
Assy., Power
2nd I. F. (66XTA)
'These parta will replace the original equipment parts.
Item Part No.
No.
Description
41 B-136132
Transformer, Power (66XTA-10)
41 B-136131
Transformer, Power (66XTA-20)
42 W-43567 43 W-43567
44 B-135651
Bulb (dial), Type 51, 7.5 v., 0.2 ai Ep.
Bulb (dial), Type 51, 7.5 v., 0.2 ai p.
Control, Tone (3 megohm)
39368-10
Control, Tone
45 B-135859
Control, Volume (1 megohm) and
Switch Assy.
39368-18
Control, Volume
39370-139369-1
Switc,
r (Plug in)
tch,
46 W-132267-1
Condenser, Trimmer
47 C-132300-2
Cable and Plug, Power
48 W-135479
Terminal Board Assy.
49 W-135479
Terminal Board Assy.
51 W-134968-2
Socket, Speaker
52A B-135936
Switch, Band Change Two
52B
Switch, Band Change }Section
53 AW-135907
Coil Assy., R. F.
54 AW-136360
Coil Assy., Osc.
55 AW-136361
Coil Assy., Ant.
57 AW-135954
Coil Assy., Ant. Loading
61 AC-138210
Antenna Loop and Back Assy.
62 B-132386-7
Condenser Trttnmer) Three
63
Condenser Trimmer Section
64 65
Partofltem#37B
Condenser Trimmer)Assy. Condenser Trimmer
39388
Socket, Tube
39017-3
Socket, Dial Light
G-39012-8
Iron Core
W-132366-2
Nut, Iron Core Locking
AW-137205
Dial Face Assy.
B-134571
Pointer, Dial
W-134667
Clip, Dial Pointer
W-51752
Spring, Dial Drive Cord
W-134917
Shaft, Drive
W-51071
Ring, Retaining
W-134916
Washer, Spring
W-135164
Bumper
W-134055
Grommet, Variable Cond. Mtg.
R-134592
Cabinet
C-132688
Lens, Dial
W-130197
Knob
W-132709
Grille Cloth
W-45580
Grommet
B-134660
Gasket, Speaker
W-132124
Stud, Trimount
W-136584
Washer, Rubber
©John F. Rider
www.americanradiohistory.com
PAGE 18-50 CROSLEY
MODELS
88Tc
CROSLEY DIV. AVCO MFG. CORP.
T ,fm
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©John F. Rider
www.americanradiohistory.com
CLARI-SKEMATIX Registered Trademark
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-51
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© John F. Rider
www.americanradiohistory.com
PAGE 18-52 CROSLEY
MODELS ::TA.
CROSLEY DIV.
88TC
Under
no
circumstances
should
a
ground
AVCO MFG.
be connected to this
CORP.
receiver. Never
place
the
receiver
chassis
on
a
metal
bench or grounded object when the power plug is connected to the electric outlet. To avoid shock, when mak-
ing repairs or adjustments, do not permit any part of the body to contact grounded metal objects.
ALIGNMENT EQUIPMENT
The following equipment is used as indicated in the alignment chart and alignment notes:
SIGNAL GENERATORS: 1. Amplitude Modulated Signal Generator with 400 cycle modulated signal to cover 455 to 1600 kc.
2. Frequency Modulated Signal Generator to cover 10.7 to 108 mc., with sweep to cover 450 kc. for the 10.7 mc. alignment.
CATHODE RAY OSCILLOGRAPH:
METERS:
1. Suitable Output Meter.
2. Field Strength Meter (Fig. 1). This meter may consist of a D.C.100 microampere (full scale) meter, shunted by a 1000 mmf. mica by-pass condenser; a germanium crystal rectifier connected in series with the meter and
a five foot, 75 ohm twisted, pair of leads. Shunt the
meter end of the leads with a 75 ohm carbon resistor.
The open ends of the leads are connected to the F.M. dipole antenna terminals. Connect the condenser directly across meter terminals, and the crystal di-
GERMANIUM CRYSTAL
5 FOOT 75 OHM TWISTED PAIR
rectly to one terminal of meter. Keep connecting leads as short as possible
TO DIPOLE ANT TERMINALS
DUMMY ANTENNA: 1. 78 ohm Dummy Antenna (Fig. 2).
CONDENSERS: 1. 0.1 mfd. Condenser. 2. 100 mmf. Condenser. 3. 220 mmf. Condenser. 4. 30 mmf. Condenser.
SHUNT: 1. 10 ohm carbon Resistor.
FIGURE 1
F Al SIGNAL GENERATOR TERMINALS
39 OHM CARBON RESISTORS
39 OHM
DIPOLE ANT TERMINALS
FIGURE 2
ALIGNMENT PROCEDURE This receiver has been aligned at the factory for best performance and no attempt should be made to realign it unless the proper test equipment is available. 1. Turn the tuning condenser to full mesh, against stop, and set the dial pointer to the reference point at the
left end of the dial. 2. Set the tone control knob to the full treble position (extreme right). 3. For Amplitude Modulated signal readings, connect output meter across voice coil (3.2 ohms). 4. All Amplitude Modulated input signals are modulated 30% at 400 cycles with the High side of the signal
generator connected to receiver as indicated in the alignment chart. Connect the low side of signal generator thru a 0.1 mfd condenser to the receiver chassis. If hum is encountered, use a 1 to 1 isolating transformer between the power line outlet and the receiver power line cord. Then connect the low side of the signal generator directly to the receiver chassis. 5. All Frequency Modulated signals are modulated 30% at 400 cycles. 30' ¿ modulation is equal to a deviation of 22.5 kilocycles. 6. Turn the volume control to maximum clockwise position and adjust signal generator output to produce a noticeable output meter reading. Keep signal generator output as low as possible to prevent AVC action in the receiver.
©John F. Rider
www.americanradiohistory.com
CROSLEY DIV.
AVCO MFG. CORP.
ALIGNMENT CHART Alignment adjustment locations are shown on pages. 1 and 2
Align- Type ment GenSe- erator quency
Signal Generator Output
Fre-
In Series
To
with
Position of
Dial
Ran Switéh
Pointer or
Var. Cond.
Adjust
Type of Ose. Selectivity Fre-
Curve quency
CROSLEY PAGE 18-53 MODEL ;;TA, 88TC
Remarks
1 AM 455 100 Mixer Grid AM kc mmf. 6SH7
Open
A &B
Single Peak
See Note 1
2 AM 1400 100 Stator Plates, AM 1400 kc.
C
kc. mmf. Ant. Section
of Var. Cond.
Above See Notes 1 and 2
3 AM 1400 220
Loop
AM 1400 kc.
D
kc. mmf. Primary
Above See Note 1.
4 FM 10.7 30 2nd I.F. Grid FM Closed
E
mc. mmf.
6SH7
5 FM 10.7 30 1st I.F. Grid FM Closed
F
mc. mmf.
6SG7
See Notes 1, 3, 4, 5 & 6. See Notes 3, 5 & 6.
6 FM 10.7 30 F.M. Ant. FM Closed
G
mc. mmf. Terminals
See Notes 3, 5 & 6.
7 FM 98.0 '78 F.M. Ant. FM mc. ohm Terminals Dummy
8 Disconnect Geperator. Connect Field FM Strength Meter.*
98 mc. 92 mc.
H &I
J
y 9 If Trimmer (J) in Step 8 is turned more than turn, repeat Step 7.
Single Peak
See Notes 7 & 9 Adjust for null point. See
Note 8.
10 Repeat Step 8 if Step 9 was necessary.
11 FM 98.0 '78 F.M. Ant. FM 98 mc.
K
mc. ohm Terminals
Dummy
'See Circuit,
Adjust for maximum output.
ALIGNMENT NOTES
1. Connect low side of signal generator as explained in "Alignment Procedure':
2. Receiver should tune thru peaks at 540 and 1600 kc.
3. Sweep generator alignment. (For 10.7 mc. I.F. alignment use approximately. 450 kc. sweep width).
4. Sweep generator output 0.1 to 1 volt R. M. S.
5. Connect high side of scope to discriminator transformer terminal at shielded lead wire junction. Connect low side of scope to the receiver chassis.
6. Align for maximum peak amplitude. Peak separations should be 150 to 170 kc.
7. Disconnect scope. Connect output meter to voice coil (3.2 ohms).
8. It is important that the radiation balance trimmer be adjusted to the null point for proper operation of the Frequency Modulation band. To check the null point, connect a Field Strength Meter across the F.M. antenna primary trimmer.
9. Align F.M. Antenna band pass circuit as follows:
(a) With the F.M. signal generator set to 98.0 megacycles, feed a signal, modulated with 400 cycles at 30';; to the receiver as indicated in the alignment chart. Shunt the antenna primary trimmer with a 10 ohm carbon resistor and adjust trimmer (H) for maximum output.
(b) Place the 10 ohm carbon resistor across the F.M. antenna secondary trimmer and adjust trimmer (I) for maximum output. Remove 10 ohm carbon resistor. from secondary trimmer.
©John F. Rider
PAGE 18-54 CROSEY
»John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
CROSLEY PAGE 18-55
MODELS 88TA, 88TC MICROPHONIC ELIMINATION
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©John F. Rider
www.americanradiohistory.com
PAGE 18-56. CROSLEY
MODELS 88TA, 88TC
CROSLEY DIV. AVCO MFG. CORP.
A kit of materials (part No. 143964) will be forwarded, free of charge,
upon receipt of a request and the serial number of the radio for which
it is required.
1. Change the resistor (item No. 32) to a 22,000 ohm, 'A watt, resistor (part No. 39373-60) as shown in Fig. 1.
2. Add one 10,000 ohm 1/z watt, resistor (part No. 39373-54) as shown in Fig. 1. (88TC only)
3. Add one 1,000 mmf., 300 volt ceramic condenser (part No. 137727-8) as shown in Fig. 1.
4. Change the condenser (item No. 61) to a 1000 mmf., 300 volt ceramic condenser (part No. 137727-8) as shown in Fig. 1. (88TC only)
5. Replace the two lower screws, that fasten the speaker brackets to the front of the chassis, with two No. 8 x 1" hex. headed self threading screws (part No. 39220-36 CP). Add one headed bushing (part No.41405-3) to each of these screws, and add one rubber bumper (part No. 135164) to the head of each of these screws.
(88TC only)
6. Add one Shock mount (part No. 46065) in the upper right hole of speaker mounting bracket. Do not fasten the speaker to this shock mount.
7. Cement condenser (item No. 85 in schematic wiring diagram) to the chassis with Plastic adhesive (part No. 138905).
8. Apply a heavy coat of plastic adhesive (part No. 138905) to the original variable condenser as shown in Fig. 2. Care must be taken so that the adhesive does not interfere with the mechanical operation of the condenser.
ADHESIVE PART NO. 138905
a."
MIIIIIIII
I
III
ADHESIVE PART NO. 138905
FIG. 2
9. Secure the insulator at the top of the 1st I.F., 2nd I.F., and discriminator transformers to the transformer shields with a heavy coat of adhesive (part No. 86646).
10. Add one rubber washer (part No. 136584) between the underneath side of the cabinet and each large metal washer used on the chassis mounting screws. (88TC only)
©John F. Rider
www.americanradiohistory.com
CROSLEY PAGE 18-57
CROSLEY DÍV. MODELS 8STA, 89TC, LONGAVCO MFG. CORP. DISTANCE SWITCH INSTALL.
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4
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www.americanradiohistory.com
PAGE 18-58 CROSLEY MODELS 88TÇ
á
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8
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CROSLEY DIV.
AVCO MFG. CORP.
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©John F. Rider
www.americanradiohistory.com
CROSLEY DIV. AVCO MFG. CORP.
T CROSLEY PAGE 18-59 MODELS 8 88Tc
. ró n 0nD
0. 0.
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©John F. Rider
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PAGE 18-60 CROSLEY
MODELS 88PA,
88TC
CROSLEY DIV. AVCO MFG. CORP.
REPLACEMENT PARTS LIST-MODELS 88TA, 88TC
Figures in first column correspond to figures in Schematic Diagram
Item
No.
Part No.
Description
1
2 g 4
AC -137783 AC -138819-B AC -139094-C AC -139077-B
Transformer Assy.,,Antenna (F.M.) Transformer Assy., 1st I.F. Transformer Assy., 2nd I.F. Transformer Assy., Discriminator
5 AW-138924
6 AW-138950 7 AW-138978 8 AW-139056
Coil Assy., Oscillator (Broadcast) Coil Assy., Oscillator Mixer Coupling Choke Assy., Plate (F.M. Ose.) Condenser Assy.,,.01 mfd., 200 v., (shielded)
9A AW-136720 9B 10 AB-139118
CCLohhooopkkeea,,nRRd..FFS..upHHpeeoaarttteerrAsJsAys.s, yAntenna
11 Part of Item 1 Coil Assy.
12A 12B
Part of Item 1
CoillTwo Coil ((
Section
Assy.
13 AD-138246 Speaker
14A C-139028
Condenser, Variable', Two
14B
Condenser, Variable? Section
15 B-137364
Transformer, Output
16A B-137781 16B
Control, Volume Switch, Power
(1
megohm)l
((
Assy
39368-18
Control, Volume
39370-2
Shaft, Plug, in
39369-1
Switch, Power
17 B-137782
Control, Tone (2 megohm)
39368-11 18A B-137976
Control, Tone Condenser, 50 mfd., 200 v. Four
18B
Condenser, 50 mfd., 200 v. Section
18C 18 D
Condenser, 50 mfd., 150 v. Condenser, 20 mfd., 25 v.
Elect. Filter
19 B-137986 20 W-48858
Switch, Band Charge Bulb EDial), Type 47,
6.3
v.,
.15
amp.
21 39012-70
Iron Core, F.M. Oscillator Coil
22 AB -138971 Interlock Assy.
23 C-132300-6 Cable and Plug Assy., Power
26 W-137143
Transmission Line, 75 ohm
26 W-139286
Coil, Oscillator (F.M.)
27 39373-9
Resistor, 47 ohm, % w.
28 39373-93
Resistor, 1.2 megohm, % w.
29 39373-143
Resistor, 1000. ohm, 1 w.
30 39373-16
Resistor, 150 ohm, % w.
31 39373-33
Resistor, 1000 ohm, % w.
33 39373-33
Resistor, 1000 ohm, % w.
34 39373-33
Resistor, 1000 ohm, ? 2 w.
36 39373-33
ResistOr, 1000 ohm, ? á w.
37 39373-54
Resistor, 10,000 ohm, % w.
38 39373-54
Resistor, 10,000 ohm, !z w.
39 39373-64
Resistor, 33,000 ohm, % w.
40 Part of Item 3 Resistor, 47,000 ohm, % w.
41 39373-67
Resistor, 47,000 ohm, 1A w.
42 Part of Item 4 Resistor, 100,000 ohm, % w.
43 Part of Item 4 Resistor, 100,000 ohm, w.
44 Part of Item 4 Resistor, 100,000 ohm, % w.
46 39373-84
Resistor, 330,000 ohm, % w.
47 39373-87
Resistor, 470,000 ohm, w.
48 39373-92
Resistor, 1 megohm, 'A w.
49 39373-92
Resistor, 1 megohm, % w.
50 39373-97
Resistor, 2.2 megohm, %w.
51 39373-102
Resistor, 4.7 megohm, % w.
52 W-139035
Resistor, 80 ohm (Wire Wound) Two
Resistor, 18 ohm (Wire Wound) fSection
54 39001-17
Condenser, .05 mfd., 600 v., paper
56 39001-17 56 39001-13
Condenser, .05 mfd., 600 v., paper Condenser, .01 mfd., 600 v., paper
57 39001-13
Condenser, .01 mfd., 600 v., paper
58 39001-13
Condenser, .01 mfd., 600 v., paper
60 39001-13
Condenser, .01 mfd.. 600 v., paper
62 39001-17
Condenser, .05 mfd., 600 v., paper
63 39001-17
Condenser, .06 mfd., 600 v., paper
64 39001-19
Condenser, .1 mfd., 600 v., paper
66 39001-76
Condenser, .003 mfd., 600 v., paper
66 39001-80
Condenser, .02 mfd., 600 v., paper
67 Part of Item 3 Condenser, 100 mmf., 300 v., ceramic
68 Part of Item 3 Condenser, 100 mmf., 300 v., ceramic
69 Part of Item 2 Condenser, 100 mmf., 300 v., ceramic
70 C-137727-8
Condenser, 1000 mmf., 300 v., ceramic
71 C-137727-8 72 C-137727-8 73 C-137727-8 74 C-137727-8
Condenser, 1000 mmf., 300 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Condenser, 1000 mmf., 300 v., ceramic
76 Part of Item 4 Condenser, 1000 mmf., 300 v., ceramic
These parts will replace the original equipment parts.
Item No.
Part No.
Description
76
77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92
93 94 95 96 97 98 99 100 101
102 103 104 105
C-137727-8 Condenser, 1000 mmf., 300 v., ceramic
C-137727-8 Condenser, 1000 mmf., 300 v., ceramic
Part of Item 10 Condenser, 1000 mmf., 300 v., ceramic
C-137727-19 Condenser, 39 mmf., 300 v., ceramic
Part of Item 4 Condenser, 50 mmf., 500 v., ceramic
Q-137727-24 Condenser, 180 mmf., 500 v., ceramic
C-137727-28 Condenser, 61 mmf., 500 v., ceramic
C-137727-37 Condenser, 10 mmf., 300 v., ceramic
Part of Item 4 Condenser, 10 mmf., 300 v., ceramic
B-137499-5 Condenser, 500 mmf., 300 v., silver mica
Part of Item 6 Condenser, 3.3 mmf., 600 v.
W-139285
Condenser, 62 mmf., ceramic
W-138268
Condenser, Trimmer
C-136327-29 Condenser, Trimmer
Part of Item 1 Condenser, Trimmer
Part of Item 1 Condenser, Trimmer
Part of Item 2 Condenser, Trimmer
Part of Item 2 Condenser, Trimmer
Part of Item 3 Condenser, Trimmer
Part of Item 3 Condenser, Trimmer
Part of Item 2 Condenser, Trimmer
Part of Item 2 Condenser, Trimmer
Part of Item 3 Condenser, Trimmer
Part of Item 3 Condenser, Trimmer
Part of Item 4 Condenser, Trimmer
Part of Item 4 Condenser, Trimmer
Part of Item 6 Resistor, 47,000 ohm, 'A w.
39001-11
Condenser, .005 mfd., 600 v., paper
39373-74
Resistor, 100,000 ohm, ! w.
C-137727-8 Condenser, 1000 mmf., 300 v., ceramic
108 39373-92
Resistor, 1 megohm, %A w.
109 39373-92
Resistor, '1 megohm, % w.
110 111
Part of Item 1
39001-1
Resistor, 1 megohm, w. Condenser, .0001 mfd., 600 v., paper
112 39373-60
Resistor, 22,000 ohm, w.
113 39373-54 114 C-137727-8 115 C-137727-8
AB -138910
Resistor, 10,000 ohm, !A¢ w. Condenser, 1000 mmf., 300 v., ceramic Condenser, 1000 mmf., 300 v., ceramic Back & Power Cable Assy. (88TA)
AB -139643
Back & Power Cable Assy. (88TC)
W-135164
Bumper, Rubber (Chassis, Front)
R-138573-3 Cabinet (88TA)
R-139647
Cabinet (88TC)
AB -139105 Dial Assy.
AW-139148 Dipole Antenna Kit
W-138660
Foot. Rubber (88TA)
W-134055 B-138574-3 B-138575-3 B-138576-3 B-138574-1 B-138575-1 B-138676-6 W-132366-1 W-132366-2 W-137460
Grommet (Var. Cond. Mtg.) Knob, Volume or Tuning (88TA) Knob, Band Change (88TA) Knob, Tone (88TA) Knob, Volume or Tuning (88TC) Knob, Band Change (88TC) Knob, Tone (88TC) Nut, Locking (Trimmer) Nut, Locking (Ose. Coil) Pointer, Dial
W-51071 W-211101
Ring, Retaining Ring, Socket Retaining
39311-60
Screw, Set (Toggle Arm)
W-137751-2 Shaft, Drive
W-46065
Shock Mount, Rubber (speaker)
39232-1
Socket, Tube (25Z6)
39232-2
Socket, Tube (25L6)
39232-7
39232-10
39232-10 39232-10
Socket, Tube (6H6) Socket, Tube (6SH7) Socket, Tube (6SG7) Socket, Tube (6SJ7)
W-136470
Socket, Tube (7F8)
D-136665-17 Socket, Dial Light
W-138656
Spring, Dial
W-51752
Spring, Dial Drive Cord
W-49829
Spring, Lock
W-138568
Strip, Diâl Pointer
C-139844
Strip, Dial Trim
B-138649
Strip, Dial Window
AB -139099 Toggle Arm & Link Assy.
W-132124-58 Timount Stud. Back (88TA)
W-136584
Washer, Rubber (Chassis Mtg.)
W-134916
Washer, Spring
C-139037
Window, Dial
©John F. Rider
www.americanradiohistory.com
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