OPERATING AND MAINTENANCE MANUAL
1034A-Waveteck-Manual 69p OPERATING AND MAINTENANCE
MANUAL
PORTABLE
RF POWER METER
MODEL 1034A
SERIAL NUMBER
_
Copyright 1976 by Wavetek Microwave, Inc.
Printed in the United States of America. The information comaine£l in this manual is intended for the operation and maintenance of Wavetek Microwave equipment, and is not to be used othervtise or reproduced wilhout lhe wriuen consent of Wavetek Microwave, Inc.
WAVETEK MICROWAVE, INC.
488 TASMAN DRIVE, SUNNYVALE, CALIFORNIA 94089 TEL: (408) 734-5780 TWX: (910) 339-9273 TELEX: 371-6460
From the library of WØMTU
1499-14166 Code 13 (2-88)
'\4odeJ l034A
WARRANTY
Wavetek warrants that all products manufactured by Wavetek conform to published Wavelek specifications and are Iree from defects in materials and workmanship for a period of one (1) year from the date of delivery when used under normal operating conditions and within the service conditions for which they were furnished.
The obligation of Wavetek arising from a Warranty claim shall be limited to repairing, or at its option, replacing without charge. any product which in Wavetek's sale opinion proves to be defective within the scope of the Warranty. In the event Wavetek is not able to modify, repair or replace non-eonlorming defective parts or components to a condition as warrantied within a reasonable time after receipt thereof. Buyers shall be credited for their value at the original purchase price. Wavetek must be notified in writing of the defect or nonconformity within the Warranty period and the affected product returned to Wavetek's factory or to an authorized service center within (30) days after discovery of such defect or nonconformity. For product warranties requiring return to Wavetek, products must be returned to a service facility designated by Wavetek. Buyer shall prepay shipping charges, taxes, duties and insurance for products returned to Wavetek for warranty service. Except for products returned to Buyer from another country, Wavetek shall pay for return of products to Buyer. Wavetek shall have no responsibility hereunder for any defect or damage caused by improper storage, improper installation, unauthorized modification, misuse, neglect, inadequate maintenance, accident or for any product which has been repaired or altered by anyone other than Wavetek or its authorized representative and not in accordance with instructions furnished by Wavetek.
Exclusion of Other Warranties The Warranty described above is Buyer's sale and exclusive remedy and no other warranty, whether written or oral, is expressed 01' implied. Wavetek specifically disclaims the implied warranties of merchantability and fitness for a particular pur pose. No statement, representation, agreement, or understanding, oral or written, made by an agent, distributor, representative, or employee of Wavetel<, which is not contained in the foregoing Warranty will be binding upon Wavetek, unless made in writing and execuled by an authorized Wavetek employee. Under no circumstances shall Wavetek be liable for any direct, indirect, special, incidental, or consequential damages, expenses, losses or delays (including loss of profits) based on contract, tort, or any other legal theory.
From the library of WØMTU
Model l034A
TABLE OF CONTENTS
Section 1 Section 2
Page No.
GENERAL INFORMATION 1.1 Wavetek Microwave, Inc. (WMI)
Model l034A Portable RF Power Meter .......··.·........ 1-1
1.2 Performance Specifications ·...........·.··....··..·...·· 1-2
Technical Information Sheet: "Detectors for use
with WMI Scalar Analyzers and Power Meters"
Technical Information Sheet: "Detector Element and
Tracking Resistor Replacement Procedures"
INITIAL INSTRUCTIONS
2.1 Receiving Instructions .·····..····.·············..····.. 2-1
2.2 Returning the Instrument ..·.·..........·········...·...· 2-1
2.3 Power Requirements .....·...........··........···...... 2-1
2.4 Chassis Grounding ···.·.........····.........···........ 2-1
2.5 Detector Handling ...·.·..·....·...........··..·.·····.· 2-1
2.6 Accessories ..·.···.·..···.·...·.....·.·.··...·...····· 2-2
Section 4
OPERATION
3.1 Front Panel Controls .·.··.·.··..·...........·.........· 3-4
3.1.1 3.1.2
3.1.3 3.1.4 3.1.5 3.1.6
Power Switch ..·.·..·....··........···..··.··.··· 3-4
Meter Range Push Buttons .....····.....··...···..· 3-4
Zero Button &. Screwdriver Adjustment ............·. 3-4
Cal Button &: Screwdriver Adjustment ..........··... 3-4
Calibration Factor Control {dB) ·........·..·.·...·. 3-4
Direct 50 /75 Adapter Switch ·..·..····..·....·. 3-4
3.2 Internal Control, Line Voltage Switch .·......·.·....·...·· 3-5
3.3 Front Panel Meter ·....·...·.......··........·..·.....·. 3-5
3.4 Front Panel Connectors ....·..·.........·.·.·· , ·..···.·· 3-5
3.4.1 Power Input ........·........·........·..·....... 3-5
3.4.2 Output BNC Connector ....·..·.·..····........... 3-5
3.4.3 Cal Output lOmW, Type N Connector ..·....·....... 3-5
ii
From the library of WØMTU
Model 1034A TABLE OF CONTENTS (can't.)
3.5 Operating Procedure ...·..·.....·····...·.·.··..·.....·. 3-5
3.5.1 Use of the Analog Output .·.···................... 3-6
Section 4
ELECTRICAL DESCRIPTION
4.1 Introduction ............·...........·.................. 4-4
4.2 Block Diagram Description .......·...................... 4-4
4.2.1 4.2.2 4.2.3 4.2.4 it.2.5 4.2.6
RF Detector .....·....·...·...·.................. 4-4
Thermistor Bridge Amplifier ................·...... 4-4
Preamplifier .................·............·...... 4-4
Compensation Circuit ..................·.......... 4-4
Logarithmic Amplifier .................·.......·.. 4-4
Full-Scale Range Changing
4-5
4.3 Individual Circuit Block Descriptions ...............·...... 4-5
4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7
Input Amplifier ...............·.................. 4-5
Log Conversion Circuit ................·.......·.. 4-5
Square-Law Compensating Circuit .......·...·...... 4-6
Temperature Compensation .............·...·...·.. 4-6
Range Switching ......................·.......... 4-6
Calibrator Oscillator ..................·.......... 4-7
Power Supply .............................·...... 4-7
Section 5
PERFORMANCE VERIFICAnON TESTS 5.1 General ............................................·.· 5-1
5.2 Equipment Required ................·...·.·.....·.·..... 5-1
5.3 Tracking With DC Voltage ................·.....·····.... 5-2
5.4 Calibrator Output Level Check ............··.··..·....... 5-3
Section (,
MAINTENANCE
6.1 Periodic Maintenance .......................·...·....... 6-1
6.2 Internal Adjustments and Test Points .........·...·....... 6-1
6.2.1 Description of Adjustments
6-1
6.2.2 Description of Test Points .................·...·... 6-2
iii
From the library of WØMTU
Model l034A
TABLE OF CONTENTS (con't.)
Page No.
6.3 Calibration
6.3.1 Equipment Required ....·.........·....·.......... 6-2
6.3.2 Calibration Procedure ..·...........·.·........... 6-3
6.4 Troubleshooting .......·........····..··.····...·....... 6-6
6.5 Semiconductor Devices ..........·..........·........... 6-7
6.6 Access to Internal Components ·............·............. 6-7
Section 7
SCHEMATIC DIAGRAMS
Table of Contents for Schematic Diagrams ....·....·........... 7-1
Section 8
REPLACEABLE PARTS LISTINGS
Table of Contents for Replaceable Parts Listings ............·... 8-1
Section 9
MANUAL CORRECTIONS ..............·........ follows page 8-16
LIST OF ILLUSTRATIONS (Tables and Figures)
Table 4-A
Table 5-A
Range Switching Gains and Offsets ....·....................... 4-7
Tracking Performance Tests ...................·.............. 5-1
Figure 1-1
Model 1034A Detector Measurement Accuracy
1-2
Figure 3-1
Model 1034A Front Panel. .....................·.............. 3-3
Figure 4-1
Model l034A Block Diagram .....·............................ 4-3
Figure 5-1
Modified Thermal Converter
for Checking the Calibrator Output ........·................·.· 5-2
Figure 5-2
Fixture for Applying DC Voltage to the Model l034A ...·.....·..· 5-2
Figure 6-1
Chopper Circuit Timing Diagram ......·........·.·...........· 6-7
iv
From the library of WØMTU
T E K M I C ROW A V E, INCORPORATED
488 TASMAN DRIVE, SUNNYVALE, CALIFORNIA 94089 Tel: (408) 734-5780
TWX: (910) 339-9273
TECHNICAL INFORMATION
DETECTORS FOR USE WITH WAVETEK MICROWAVE, INC. (WMI) SCALAR ANALYZERS
AND MODEL 1045 AND 1034A POWER METERS
The purpose of this Technical Information sheet is to define parameters and specifications perti nent to all of the detachable detector options available for the various WMI scalar analyzer systems and the Model 1045 and 1034A power meters. Parameters common to each of the detector configurations are defined first, and then individual detector specifications are given.
WMI offers three different types of detectors for the above scalar systems and power meters. These include the single diode and balanced (dual diode) coaxial detectors, and the balanced element waveguide detector. The single diode and balanced coaxial detectors have a maximum power rating of 200mW (+23dBm), and cover the frequency range of I MHz to 18.5GHz or I MHz to 26.5GHz. One version of the single diode detector (used with the Model 1045 Power Meter) has a built-in atlenuator to allow it to measure maxi mum power levels up to lOW (+40dBm) CW or up to 200W (+53dBm) peak. The balanced element waveguide detector has a maximum power rating of loomW (+dBm), and is designed for the frequency range from 26.5GHz to 4O.0GHz.
Coaxial detectors are available with type N, APC7, and APC3.5 (compatible with SMA) connectors, and the waveguide detector comes with a WR28 waveguide (UG-599/U Flange).
Frequencies down to 100kHz are available on special order, and various types of 50 to 75 ohm adapters are available for the coaxial detectors.
HOTH: If it is desired to check the detector/ instrument system performance, refer to the Performance Verification Test in the Operat ing and Maintenance Manual for the particu lar instrument.
SINGLE DIODE DETECTOR FEATURES AND SPECIFICAnONS
Further features and specifications for the WMI single diode detector include the following:
o 70dB Dynamic Range
o Temperature Compensated
o Linearity Compensated
o Frequency Response Curve Da ta
Accuracy: The uncertainty of cali bration for the single diode <Ietector at ImW (OdBm) is 3% to 18GHz and 5% to 26.5GHz
o Flatness: The maximum total varia tion of flatness for the single diode detector WIll be between IdB and 4dB from I MHz to 26.5GHz, depend ing on the detector model and in strument with which it is used. (See the reverse side of this sheet.)
o Return Loss: Return loss of the single diode detector is 25dB from (MHz to 2GHz and 20dB from 2GHz to 12.4GHz with any connector. With type N or APC7 connectors, return loss is 18dB from 12.4 to 18GHz and 14dB between 18 and 18.5GHz. When detectors with APC3.5 connectors are used, return loss is 16dB from 12.4 to 18GHz and 14dB to 26.5GHz.
o Measurement Accuracy: Figures 6 and 7 show the measurement accura cy for the single diode detectors used with the power meters. Single dIode detectors specified for the 1038-H/V system have a measure ment accuracy of O.ldB/lOdB plus O.5dB at -50dBm
BALANCED (DUAL DIODE) DETECTOR FEATURES AND SPECIFICAnONS
Further features and specifications for the WMI balanced detector include the following:
o 76dB Dynamic Range
o Effects of even harmonics are re duced, thereby increasing measure ment accuracy
o Absorbs low level dc offset voltages
o Very low thermal drift
o Temperature Compensated
o Linearity Compensated
o Input Impedance: 50 ohms, nominal
o Frequency Response Curve Data Accuracy: The uncertainty of cali bration for the balanced detector is 3% to 18GHz and 5% to 26.5GHz
o Flatness: The maximum total varia tion of flatness for the balanced detector is 1.5dB from I MHz to 18GHz and 2dB from 18 to 26.5GHz
o Return Loss: Return loss of the balanced detector is 20dB from IMHz to 2GHz, 18dB to 12.4GHz, 16dB to 18GHz, and JOdB up to 26.5GHz.
o Measurement Accuracy: See Figure 4
Figure 2. Wavetek Microwave's Patented &lanced (Dual Diode) Detector
Figure 1. Typico.l Configurations of Wavetek Microwaves Single Diode Detectors
DETECTOR HANDLING PRECAUTIONS
Any RF detector is, of necessity, a very delicate instrument and must always be handled with care. Care must be taken to avoid el<ceedlng the detector's electrical rating through static electricity, power input greater than specified, or use of measuring equipment. Also avoid mechanical stress that could be caused by dropping or over-torquing the detector. See the Operating and Maintenance Manual for the appropriate instrument with which the detector is to be used for further details.
(OVER)
From the library of WØMTU
1499-16428/2-88/500
WAVEGUIDE DETECTOR FEATURES AND S P E C I F I C ATIONS
Further features and specifications for the WMl waveguide detector include the following:
o 70dB Dynamic Range
o Has a plastic housing to reduce thermal shock when handling
o Frequency Response ,--urve Data Accuracy: The relative uncertainty of calibration for the waveguide detector is 5% from 26.5 to 40.0GHz
o Flatness: The maximum total varia tion of flatness for the wavegu:~e detector is 4dB from 26.5 to 40.0 GHz
o Return Loss: Return loss of the waveguide detector is > 10dB from 26.5 to 40.0GHz
o Measurement Accuracy: See Figure 5
INDIVIDUAL SYSTEM OR POWER METER DETECTOR SPECIFICATIONS
Part
Frequency
Number Range
Absolute Maximum Power Input Without
Damage (Peak or CW)
Connector
15176 15177 15285 15850
NIO/NS20 System Detectors
lMHz to 18.5GHz
IMHz to 18.5GHz I MHz to 26.5GHz 26.5 to 40.0GHz
200mW 200mW 200mW 100mW
Type N APCl APC3.5* UG-599U (WR28)
15272 13782 13783 15882
I MHz to 26.5GHz lMHz to 18GHz lMHz to 18GHz 26.5 to 40.0GHz
H/V System Detectors
200mW 200mW 200mW 100mW
APC3.5* Type N
APC7 UG-599/U (WR28)
13786 13787 14139 15271
Model 1045 Power Meter Detectors
lMHz to 18GHz IMHz to 18GHz lMHz to 18GHz lMHz to 26.5GHz
200mW 200mW lbw CW - 200W Pk 200mW
Type N
APCl Type N APC3.5*
Modell034A Power Meter Detector
13780
IMHz to 18GHz I
'Compatible with SMA connector
200mW
I Type N
Type
Balanced Balanced Balanced Balanced
Single Single Single Single
Single Single Single Single
Single
Diode Replacement Kit No's.
15360 15360 15361 Not Field Replaceable
15416 14016 14016 Not Field Replaceable
14018 14018 14018 15417
14015
~ -J::~
'""'.,...WI'_· ...,;~
Figure 3. Wavelek Microwave '5 Balanced Elemenl Waveguide DeleclOr
INDIVIDUAL INSTRUMENT SPECIFICATIONS The detector parameters gIVen on tne reverse side of this Technical Infonnation sheet cover the specifications that are generally to be ex pected of WMl detectors. Some specifications can be slightly different due to characteristics of the instrument with which the detector is used. These deviations are given below, with all other specifications as given on the reverse side of this sheet.
Model 10Jl-H/V System
return loss is 14.0dB up to
Temperature: On Figure 5, H/V System temperature range is 350 to 450 C instead of 350 to 500 C
1.2 I
I
.. 1.0 I
c
I
1_ 0.8
: a:~
\
i [\ ~ 06 I \
2·g 0.4
1\ ~
-;
.~
~
0.2
I I I
:0
I
.~
0 I
I
Q.
I
I
+16 +10 0
10 2dB ~-60
U
rr·l5"C
/
35' . 5O"C
.. I
/
/
~
15"t5"C - .- 1
-10 -20 -30 ...a -50 -60
Sign" LOY'I. dBm
Figure 4 Model 1038-N 10 and NS20 Syrtem Coaxial Detector Accuracy from 30M'Hz to 28.5CHz. (An additional O.2dB 13 added to the deviation reading for operation from 1 to 30MHz)
Model II>" Power Meter
Flatness: With type N or APC7 connectors, flatness (maximum total variation) is 2.0dB to 18GHz. With APC3.5 connectors, flatness is 1.0dB to 18GHz and 2.0dB to 26.5GHz
Return Loss: Same as H/V system
Measurement Accuracy: See Figure 6
O.S
0.'
~ ~ 0.' f -
c > c
r--.....
0.2
:~I: ~ 0.1
0.0 "0
to 2dB · ·bOdlllll
I I
0
0
to
1~.oc
\ , }SO to )OoC
/'
/ 'j
II /
1)0 /0 \~Or:
-10 -20 -30 _JO -so -60
qgllitl Leovtl (dam)
Figure 6 Model 1045 Detector Mea!urement
A ccuracy from 1MHz to 26.5C H z
From the library of WØMTU
10 2dB @ -110
1.S
n
2' 1.3
L 1.1
-"a: ..
~~ 0.8
~ ;25; 0.7
;1 \ 2i
0.5
- - ~
0.3
I I Q.
_0' -,S'C
35'; SO'C
/
/
~5'~~5'C
° + 10
-'0 - 20 - 30 - 40 - so -110
SlgMI Lewel, dIm
Figure 5 Model 1038-N 10, NS20, and H/V S)'!tem! Waveguide Detector Accuracy from 28.5CHz to 40CHz
Model 103-'A Power Meter
Frequency Response Curve Data Accuracy: The uncertainty of calibration at ImW (OdBm) is 2% to 12.4GHz and 3% to 26.5GHz
Flatness: 2.0dB to 18GHz Return Loss: Same as H/V System Measurement Accuracy: See Figure 7
1.0
~ 0.8
I I
T\ \
0.6 r-~ 0° to [)Oc
H0.' f . I-
3~o 10 so0 ~ I\ I
:D
,~ 0.2
g, ~
I
ISO :0 J5°
to ldR a -6OJllm
U
/:
/'"
0.0·'0
-10 -20 -30 _JO -SO I -60
Signa.l Ltvtl (dlllll)
Figure 7 Model 1034A Detector Mea!ure men! Accuracy from 1MHz to 10CHz. (Add 0.2dB to the above for frequencle.! from IOGHz to 18GHz)
E K M I C ROW A V E, INC 0 R P 0 RAT E D
488 TASMAN DRIVE, SUNNYVALE, CALIFORNIA 94089 Tel: (408) 734-5780
TWX: (910) 339-9273
TECHNICAL INFORMATION
DETECTOR ELEMENT AND TRACKING RESISTOR REPLACEMENT PROCEDURES FOR DETECTORS USED WITH THE 1038-H/V SYSTEM (PIN'S 13782, 13783, 13784, 15272); THE MODEL 1045 POWER METER (PIN'S 13785, 13786, 13787, 13838, 13840, 14139, 15271); AND THE MODEL 1034A POWER METER (PIN'S 13779, 13780, 13781)
All of the detector part numbers listed in this Technical Information Sheet represent single diode detectors. In the single diode detector, the detector element is replaced at the detector end of the cable and the tracking resistor is replaced at the instrument input end of the detector cable.
WARNING: Dimensional tolerances of the detectors are critical. Care must be taken to keep the work area
very clean when performing a diode and resistor
changeout so that dirt and dust cannot get into the detector.
Before starting any of these replacement procedures, be sure to read all of the Handling Precautions shown inside the box at the bottom of this page.
4. Late model detectors have only the detector element; no spacer, washer, or ring. If you r detector has no spacer, washer, or ring, then discard the ring from the kit and replace just the element as shown in Figure 1. Make sure that components are correctly seated and pressed firmly into the detector.
WARNING. Use care when pressing the detector element into the housing to avoid damaging the female socket contacts.
5. Replace the cap assembly onto the detector housing assembly, and tighten to 30 inch-pounds (4.4 N-M). Reassemble the insulator and knurled nut onto the detector.
FOR DETECTOR PIN'S 13779, 13780, 13781, 13782, 13783, 13784, AND 15272 (1038-H/V SYSTEM AND MODEL 1034A) USE THE FOLLOWING PROCEDURES:
1. Using Figure 1 on page 3 of this sheet as a guide, remove the knurled nut that secures the insulator to the detector. Slide the insulator back along the cable to expose the metal detector body.
2. Unscrew the cap assembly from the detector housing assembly.
3. Remove the detector element and, if included, the ring from the detector housing assembly. (Older detectors may have a capsule spacer and capacitive washer. Remove these. They will be replaced by the ring included in the kit. If your detector has just the ring, replace it with the ring from the kit.)
Steps 6 through 11 apply only to PIN'S 13779, 13780, 13781
6. Using Figure 2 as a guide, unscrew the strain relief from the connector body.
7. Remove the shrink sleeving from the existing resistor in the detector and check its value against the value of the resistor included in the kit. If they are the same value, leave the existing resistor re-cover it with shrink sleeving).
8. If the resistor values are different, unsolder the existing resistor and replace it with the new resistor from the kit at the same point (pins 3 and 4). Be sure to place shrink sleeving over the new resistor before reassembling.
9. Reassemble by reversing the above steps.
HANDLING PRECAUTIONS
1. GENERAL
Avoid unnecessary handling of the detector element used in the RF detector.
A. Static electricity builds up on a person, especially on dry days, and must never be allowed to discharge through the RF detector. Avoid any exposed leads on the detector input or output.
B. Before installing the detector element in the detector housing, touch the exposed metal housing with your hand to discharge stallC electricity. Then Install the element into the housing.
C. Before handing a detector element to another person. touch hands first to remove the static electricity potential between you.
D. Do not use an ohmmeter to measure the detector element's diode resistance. The
ohmmeter's open circuit voltage or short circuit current could easily damage the diode.
2. MECHANICAL PRECAUTIONS
The RF detector is a very delicate instrument that can be easily damaged during handling. Possible excessive return loss or mechanical breakage can occur. To aVOid problems while installing the detector element, review the procedures detailed in the diode replacement section of this Technical lnlormation sheet. The following precautions are prOVided as supplemental information and are general In nature.
A. During disassembly of the detector assembly, note the position and alignment of all componeflts. If small components are damaged. replace them before reassembly.
B. Ensure that all parts are clean. but use extreme care in cleaning them to avoid causing other prOblems. If a cleaning solution must be used, use only ISOPROPYL ALCOHOL, as other solvents can affect the materials used in the detector assembly.
C. Reassemble the assembly using minimum force. Normally, the assembly can be HAND-TIGHTENED to the point that no space is left between the. housing and the cap. If you can no longer tighten it and any space remains, something may be misaligned internally.
D. Seat the assembly firmly using a torque wrench and the specified torque of 30 inch-pounds (4.4 N-M). ensuring that the wrenches are properly seated on the flat surfaces provided.
From the library of WØMTU
1499-16709/2-88/500
10. Remove the old calibration label since its data will no longer apply. Leave the old part number label on the detector.
11. Check the detector in accordance with the Detector Performance Evaluation Procedure shown at the bottom of the next column.
12. If facilities are available for evaluating frequency response characteristics, the new calibration data can be marked on the new label, if supplied, or recorded for reference. If a new label is marked, it should be affixed to the detector insulator to replace the old label. If no facilities are available to check frequency response, the detector can be returned to the factory for calibration.
FOR DETECTOR PIN'S 13785, 13786, 13787, 13838, 13840, 14139, AND 15271 (MODEL 1045) USE THE FOLLOWING PROCEDURES:
1. Using Figure 3 on page 3 of this sheet as a guide, remove the two #2-56 screws from the sides of the insulator. Slide the insulator back.
2. Unscrew the cap assembly from the detector housing assembly.
3. Remove the detector element and, if included, the ring from the detector housing assembly. (Older detectors may have a capsule spacer and capacitive washer. Remove these. They will be replaced by the ring included in the kit. If your detector has just the ring, replace it with the ring from the kit.)
4. Late model detectors have only the detector element; no spacer, washer, or ring. If your detector has no spacer, washer, or ring, then discard the ring from the kit and replace just the element as shown in Figure 3. Make sure that the components are correctly seated and pressed firmly into the detector.
WARNING: Use care when pressing the detector element into the housing to avoid damaging the female socket contacts.
5. Using Figure 4 on page 4 of this sheet as a guide, unscrew the coupling nut from the cap. Remove the #2 screw from the therm istor mount so that it is free to revolve in the cap.
6. Holding the cap securely, use the spanner wrench (P/N 14238) provided in the kit to unscrew the audio connector. Make sure that the thermistor mount also revolves in the cap in the same direction as the audio connector.
7. Check the value of the existing resistor against the val ue of the resistor incl uded in the kit. If they are the same value, leave in the existing resistor.
8. If the resistor val ues are different, unsolder the existi ng resistor and replace it with the new resistor from the kit. Solder the resistor across pins 1 and 5. The red wire must be re-soldered back into connector pin 1.
9. Screw the audio connector back into the cap, alloWing the thermistor mount to revolve in the same direction as the connector.
10. Using the #2 screw, secure the thermistor mount to the cap. Then screw the coupling nut back onto the cap.
11. Replace the coupling nut/cap assembly onto the detector housing and tighten it to 30 inch-pounds (4.4 N-M).
12. Replace the insulator and secure it with the two #2-56 screws.
13. Remove the old calibration label since its data will no longer apply. Leave the old part number label on the detector.
14. Check the detector in accordance with the Detector Performance Evaluation Procedure given below.
15. If facilities are available for evaluating frequency response characteristics, the new calibration data can be marked on the new label, if supplied, or recorded for reference. If a new label is marked, it should be affixed to the detector insulator to replace the old label. If no facilities are available to check frequency response, the detector can be returned to the factory for calibration.
DETECTOR PERFORMANCE EVALUATION PROCEDURE
This test will check the detector for proper linearity and VSWR characteristics.
Standard procedures can be used to check return loss. The measurement of return loss up to a frequency of 34GHz requires considerable care if measurement errors are to be avoided. It is highly recommended that a slotted line be used, or to use couplers or bridges with open/short calibration and an air line during the measurement procedure.
To check linearity, the power meter or analyzer compatible with the detectors must be within proper calibration. To supply power to the detector, a source with a power output between 0 and 16dBm must be used. This is usually a30 to 50MHz sourceof40mW. The source must have harmonics down at least 50dB, and a well matched step attenuator (10dB steps, return loss greater than 20dB, and a 70dB range). Due to the tightness of the linearity specification for the detectors, the coaxial attenuator must have a correction chart with it allowing the attenuation to be known within 0.03dB down to -40dBm, and within 0.1 dB below -40dBm.
Connect the attenuator between the detector and the source. Starting with 0 attenuation, step the attenuator in 10dB steps. If detectors forthe 1038-HIV System are being checked, measurement accuracy should be 0.1 dB/10dB plus 0.5dB at -50dBm. If detectors for the Model 1045 or Model 1034A are being checked, use the linearity curves of either Figure 5 or Figure 6 on page 4 of this sheet for comparison.
From the lib2rary of WØMTU
CAPSULE SPACER
~ ~ POLYIRON INSERT v<on
~ ~ THIS SIDE
HITE CERAMIC INSULATOR DETECTOR ELEMENT
__
~ CAPACITIVE WASHER
~--
DETECTOR
"~v\
HOUSING ASSEMBLY
DETECTOR ELEMENT
BLACK
~
~ INSULATOR
W
~
DETECTOR ELEMENT
RING
BLACK INSULATOR
INSULATO~ NU~ '" COUPLING
Figure 1. Element Replacement for Detectors Used With the 1038-HIV and 1034A Units
Audio Connector
/
~ Strain relief
Resistor
(Pin 3 to Pin 4)
Figure 2. Resistor Replacement for Detectors Used With the 1034A Units
~ ~~ ~ :::iiiiiiiiii@~~\~\--'"'\~f'~I~ifiiiiiiii-- CAPSULE SPACER
POL YIRON INSERT v,"-,n THIS SIDE
HITE CERAMIC INSULATOR
DETECTOR ELEMENT
, --
__
CAP ASSEMBL Y· iiil~~~~~~~~
'
~
~ CAPACITIVE WASHER
---~~ETECTOR ~ ~~ ELEMENT INSULATOR
DETECTOR HOUSING ASSEMBLY
RIN~ ~ ~---
DETECTOR ELEMENT BLACK INSULATOR
Figure 3. Element Replacement for Detectors Used With the Model 1045 Unit
3
From the library of WØMTU
THERMISTOR MOUNT ~
AUDIO CONNECTOR
PINS
PIN 1 RED WIRE
Figure 4. Resistor Replacement for Detectors Used With the Model 1045 Unit
to 2dB @ -60dBm 0.5
~
co
"0 +1
... ~
c:
., c:
E
... ;..;..l
°.~
...Vl .~ '" c: >
-., "0
-.,'"0"
0c:0 .......
Vl"O
"'" Vl
c°..c:
0.4
0.3
~ 0.2 ~ 0.1
0.0
+10 o
0° to lsoe 35° to sooe
\
f
15° to 3soe
j / /j
/
/
-10 -20 -30 -40 -so -60 Signal Level (dBm)
1.0
Iii:
co
... "0 +1 ~
..."E"
~
c:
.°;;
'" III ...
c: >
- 0"
-".n
o<l
c:
'1""'1 .......
III "0
"'" III
c°..c:
0.8 0.6 0.4
0.2 0.0
+10
to 2dB @ -60dBm
'/
0° to lSoe
0
35
to
sooe
/
\
/':/"
/"
o f
15 to 35°
1
-I
o -10 -20 -30 -40 -so -60
Signal Level (dBm)
Figure 5. Model 1045 Detector Measurement Accuracy from 1MHz to 26.5GHz.
Figure 6. Model 1034A Detector Measure ment Accuracy from 1MHz to 10GHz. (Add 0.2dB to the curve for frequencies from 10GHz to 18GHz.)
T E K M I C ROW A V E, INC 0 R P 0 RAT E 0
488 TASMAN DRIVE, SUNNYVALE, CALIFORNIA 94089 Tal: (408) 734-5780
4
From the library of WØMTU
TWX: (9101 339-9273
Model 1034A
1. GENERAL INFORMAnON
1.1 WAVETEK MICROWAVE, INC. (WMI) MODEL 1034A PORTABLE RF POWER METER
The WMI Model 1034A Portable Power Meter is used with an RF power detector to indicate the power level incident upon the detector. A panel meter with a scale length of 4 1/2 inches indi cates the power on three scales. The two top scales cover a decade range of power with a one decibel overlap. The top scale indicates power in linear terms, and the scale below it indicates in decibels. The third (bottom) scale covers a 50dB range from -40 to +1 OdBm and indicates in dBm. One of seven ranges can be selected by push buttons arranged in a column on the right side of the meter's front panel. These will cause the meter to read on-scale for the decade ranges as long as the input power is within the measurement range of the instrument. An addi tional button at the top of the column selects the -40 to +IOdBm range.
A calibration factor control allows the sensitiv ity of the instrument to be set to compensate for variations in detector calibration factors. The calibration factor for the detector is sup plied in the form of a chart showing the calibra tion factor at several different frequencies throughout the operating frequency range of the detector. By setting the control to correspond to that given for the detector at or near the specific frequency of the test signal, the instru ment will compensate for this fdctor and read it as if the calibration factor were unity. 50 to 75 ohm adapters are available as accessories. These will reduce the effective sensitivity by 1.76dB. To compensate for this, the sensitivity of the instrument can be increased an equiva lent amount by switching the slide switch on the left of the meter to the 75 oh m position. It is important to be sure that the switch has been returned to the 50 ohm position when the adapt er is not in use.
There will be a small change in the sensitivity of the detector with a change in the tempera ture. The detector is equipped with a tempera ture sensor to allow compensation for this ef fect, but there can be some small residual vari ation. To allow the operator to adjust for this
and to provide a convenient self-test feature, there is a calibration signal available from the front panel connector. This signal is very stable with respect to changes in temperature, has very low harmonic output, and is precisely matched to 50 ohms. The bottom push button on the right-hand column turns on the calibrator and selects the range for the instrument to read full-scale when connected to the calibrator out put. A screwdriver adjustment adjacent to this button sets the instrument for a correct read ing. To measure low level signals, it is neces sary to check to see that there has been no ap preciable zero drift in the instrument. Like all power meters, the Model 1034A will drift some what if the detector temperature is changing. Ideally, the detector should be connected to the measurement system with the power turned off, and the instrument set for an indication in the center scale "Zero" range. This is done by pressing the ZERO button and adjusting the screwdriver control next to the button.
To allow plotting of the power indication on an X- Y plotter, there is an analog output on the front panel. The output is 1.1 V for d full-scale deflection of the meter. Since there is an 11 dB range on the meter scale, this represents 0.1 V for each dB on the single-range scale. For the -40 to +10dBm scale, the corresponding factor is 0.0 167V IdB, or 60dB per volt. The recorder input must be isolated from ground.
The 1034A will operate steadily from its bat tery, without line power, for more than 10 hours. To recharge the battery, the instrument is plugged into the line power source with its power switch off (the pilot light will not be lit) for 14 to 20 hours. The unit can be left con nected to the line at all times with no danger of damage to the battery. Recharging will take place if the instrument is turned on during the charging cycle, but the recharging time will in crease to approximately 40 hours. If the power is supplied during normal use, the battery will remain charged and battery power will be avail able when needed.
1-1
From the library of WØMTU
Model 1034A
1.2 PERFORMANCE SPECIFICAnONS
POWER RANGE
Seven 11 dB ranges with full-scale readings of 10mW, ImW, 100uW, 10uW, luW, 100 nW, lOnW, and an eighth range covering -40 to +lOdBm.
ACCURACY
(See Figure 1-1, below)
1.0
..e
...
.'""
~
0.8
I:
-....I"t..!.....;"0":.;'
I: >
C'"l
0.6 0.4
-. -...00
..0 " ."
0
0.2
<>. '"
0.0
.10
to 2dB @ -60dBm
u
0° to 15°C
35° to 50°C
I\ I
If I
15° to 35°
/
V /'
/
0 -10 -20 -30 -40 -50 -60 Signal Level (dBmJ
Figure 1-1. Model 1034A Detector Measure ment Accuracy from 1MHz to 10GHz. (Add 0.2dB to the above for frequencies from 10GHz to 18GHz. The curve includes uncertainty due to detector non-linearity, but not mismatch or efficiency calibration errors. Not applicable to -40 to +lOdBm range.)
ZERO CARRYOVER
Included in the accuracy specifications.
NOISE
Less than 0.05dB p-p for signal levels greater than -40dBm. Less than 0.2dB p-p for signal levels greater than -50 dB, as observed on the meter.
ZERO DRIFT
At -50dBm, less than IdB/hour. Propor tionately less as the input signal increases (constant 250 C temperature, after 1/2 hour stabilization).
DRIFT WITH TEMPERATURE CHANGE
At -50dBm, less than 0.5dB/oC. Propor tionately less as the input signal increas es.
CALIBRATION OUTPUT
Calibrator output is 10mW (+lOdBm) with an uncertainty of 1.5%. Nominal frequen cy is 30MHz. Output impedance is 50 ohms. Source VSWR better than 1.04. Drift is less than 0.04dB over a three month period. Temperature coefficient is better than 0.001dB7°c.
ANALOG OUTPUT
1.1 V for full-scale reading with a coeffi cient of 100mV/dB. Output impedance is approximately 10K ohms. Noise is less than O.ldB p-p at -20dBm.
METER
Taut band 1mA movement with mirror backed scale. Milliwatt scale length is 4 1/2 inches.
POWER REQUIREMENT
115/230Vac tlO%, 50 - 400Hz, 10VA
OPERATING TEMPERATURE RANGE
WEIGHT
3.4 kg (7.5 lbs) (without battery) 3.86 kg (8.5 lbs) (with battery)
OVERALL DIMENSIONS (H x W x D)
191 x 152 x 229 mm (7 1/2 x 6 x 9 in)
BA TTER Y PO WER SUPPL Y (Option 01)
Battery provides more than 10 hours of continuous operation. Full charge is obtained after 16 hours of charging ti me. Input line voltage range is 90 to 130 and 180 to 260Vac, 50 to 400 Hz. (This option obviates Option 04.)
1-2
From the library of WØMTU
Model 1034A OPTION 03
APe? connector on the Calibrator output. OPTION 04
Operation from 100/200Vac ±10% line. No extra charge. (See also Option 01 description, preceding.)
1-3
From the library of WØMTU
Model 103lj.A
2. INITIAL INSTRUCTIONS
2.1 RECEIVING INSTRUCTIONS
Inspect the instrument for any shipping dam age. Be sure that all portions of the shipment are located and removed before discarding the shipping container.
2.2 RETURNING THE INSTRUMENT
If it is felt the instrument should be returned to WMI for any reason, it is recommended that the Wavetek Microwave Customer Service Depart ment be contacted prior to sending back the unit. It is often the case that many problems can be resolved by telephone or Telex without the necessity of returning the instrument. The telephone number is (lj.08) 73lj.-5780, extension 260, or Telex 3716lj.60.
2.3 POWER REQUIREMENTS
Before applying power to the instrument from the line, be sure that the instrument is set for the correct line voltage. When the instrument leaves the factory, a plate is installed just above the power input connector showing the correct line voltage. If it is required to change the line voltage, the large screws at the left and right center of the front panel and the screws on the bottom of the case should be re moved. Lift the instrument out of its case to allow access to the line voltage switch. Move the switch to expose the correct line voltage in dicator on the moveable plastic part of the switch. If the 115Y indicator is exposed, stan dard units will operate from 115Y ac ±IO%. If the 230Y indicator is exposed, the unit is set to operate from 230Y ±10%. If equipped with op tion Olj., the unit will operate from 100Y ±10% if set to 115Y, or 200Y if set to 230Y. If equipped with option 01 (battery) the 115Y setting will cover the range from 180Y to 256Y. If the switch setting is changed, be sure to remove the plate above the power input connector and rein stall it so that the correct voltage is facing up (the plate is marked on both sides).
2.4 CHASSIS GROUNDING
WARNING: Failure to properly ground the instrument can allow dangerous volt age levels to build up on the chassis which could be dangerous to operating personnel.
The 103lj.A is supplied with a three conductor power cord. The instrument will be properly grounded if the plug is connected to a proper ly grounded three-prong receptacle. If a three prong to two prong adapter is used, be sure that the extra lead from the adapter is grounded.
If the unit is equipped with option 01 (battery), it can be operated independently of the power line. The internal supplies are low voltage and no danger is present in the 103lj.A itself when in the battery mode. However, without the power cord connected, the unit will not be grounded and the chassis will assume the potential of the device to which it is connected. Many types of microwave sources operate with potentially le thal internal voltages. For this reason, it is ex tremely important for the operator to be sure that the device to which the 103lj.A is connected is safely grounded.
2.5 DETECTOR HANDLING
Caution: Before handling the detector in cluded with the 103lj.A, read the "Handling Precautions" at the bottom of the "Detec tor Element and Tracking Resistor" Tech nical Information sheet located at the end of Section I (preceding).
All detectors will be damaged if too much RF power is applied to them, so be sure to observe the warning affixed to the detector housing. The coaxial detector used with the 103lj.A has a maximum rating of 200mW (+23dBm). It should be determined prior to testing that the power output of the device under test will not exceed that specifieation.
2-1
From the library of WØMTU
Model 1034A 2.6 ACCESSORIES The following accessories are supplied with the 1034A:
ea PIN 12356 Power Cord ea piN 14166 Operating & Maintenance
Manual There is a storage compartment in the top of the case. Normally, the instrument will be ordered with the RF detector and possibly a 50 to 75 oh m adapter. These items and the power cord should be found in this compartment.
2-2
From the library of WØMTU
Model 1034A
(This page intentionally left blank)
3-1
From the library of WØMTU
Model l034A
(This page intentionally left blank)
3-2
From the library of WØMTU
Model l03lfA
Figure 3-1. Model l03lfA Front Panel 3-3
From the library of WØMTU
Model 1034A
3.
OPERATION
3.1 FRONT PANEL CONTROLS
The following controls are located on the front panel of the 1034A. For reference, a photo graph of the front panel is shown on the attach ed page in Figure 3-1.
3.1.1 Power Switch
This push-push switch is arranged so that power will be ON when the switch is out. When the cover is placed on the instrument case a plastic rod forces the switch in, ensuring that the pow er is off and the battery is not being drained. The fastest way to recharge the battery is with the unit connected to the ac line with the power switch off. A pilot light adjacent to the switch indicates if the instrument is turned on, but will not light during charging only.
3.1.2 Meter Range Push Buttons
Eight of the ten buttons on the right side of the meter control the ranges that can be selected for the meter. The top button (A-E) selects the bottom dBm scale of the meter, covering the range from -40 to +I OdBm. This range is useful if the power being measured will be varying over a wide range; for example, when adjusting a filter or an antenna at the start of the adjust ment procedure. It is also useful to determine the approximate power delivered by a source to the meter so that the proper range limit button can be selected. Between the major divisions of this scale are the letters A through E, indica ting the appropriate expanded range for the power being measured. Below -40dBm there is no accurate indication of power so that a selec tion of the bottom two expanded ranges must be made by trial. The seven expanded range scales are selected by the buttons below the top one (A-E). The values for the full-scale readings on the two uppermost scales of the meter are in dicated to the right of each of the buttons. The top indication of the two is for the top scale of the meter (linear values), and the bottom indic ation refers to the next scale down (dB). The expanded scales provide the best resolution and the accuracy specified for the instrument. If a reading greater than +lOdBm is indicated, the power to the detector should be reduced with
out delay because the +23dBm (200m W) destruc tion point of the detector diode could be gener ated by the power source.
3.1.3 Zero Button &: Screwdriver Adjustment
Pressing the ZERO button causes the meter to indicate the correct zero signal balance adjust ment for the input circuits of the instrument. With no RF power applied to the detector and the ZERO button depressed, the screwdriver ad justment adjacent to the ZERO button is set to cause the meter to read in the small range marked "Zero" in the center of the meter's scale.
3.1.4 Cal Button &: Screwdriver Adjustment
Pressing the CAL button turns the calibration oscillator on, disconnects the CAL FACTOR control, selects the DIRECT 50li position, and puts the meter on the "A" scale. When the de tector is then connected to the CAL OUTPUT connector, the CAL screwdriver adjustment can be set to cause the instrument to indicate ex actly 10mW, or full scale.
3.1.5 Calibration Factor Control (dB)
This control adjusts the sensitivity of the in strument to compensate for variations in detec tor sensitivity with changes in frequency. A calibration chart is provided with the detector that gives the correct setting of the CALIBRA TION FACTOR control for a number of discrete frequencies within the operating range of the detector. The control should be set to corres pond to the point on the detector's calibration chart closest to the operating frequency. If the detector is being used in conjunction with a di rectional coupler or attenuator of known cali bration, the control can be set to compensate for both the detector and the additional de vice. The meter will then read directly..
3.1.6 Direct 50 li /75 li Adapter Switch
Normally, this switch will be left in the 50 li positiona If a 50 to 75li adapter is connected in front of the detector, the switch can be set to 75li to correct the reading for a 1.76dB adapter loss.
3-4
From the library of WØMTU
Model 1034A
3.2 INTERNAL CONTROL, LINE VOLTAGE SWITCH
The 1034A can be operated on various line volt ages as well as the internal battery. See Sec tion 2.3 on page 2-1 for a complete discussion of the line voltage settings available.
3.3 FRONT PANEL METER
The mirror-backed front panel meter indicates power readings on three scales. The bottom scale covers a 50dB range, and is selected by the top button on the panel. The top two scales are selected by the buttons below the top but ton. These scales cover 11 dB, which allows a 1dB overlap for each 10dB range. In addition to the power indicating ranges, there is a center scale marking which shows the correct zero ad justment range. Just below the mirror-backed meter there is a mechanical zero adjustment provided to screwdriver-adjust the position of the pointer on the meter. This adjustment should be made with the instrument placed in the position in which it will be operated (laying down or standing up). The adjustment is correct when the pointer moves in the same direction as the adjustment screw, and lies on the scale markings at the left edge of the scale when the instrument is turned off.
3.4 FRONT PANEL CONNECTORS
The following connectors are located on the front panel of the l034A, as shown in Figure 3 l:
3.4.1 Power Input
This three prong male jack is used to supply power to the instrument when it is operating from the ac line or the battery is being re charged. The connector conforms to 1. E. C. specifications for six ampere connectors with a grounding pin. Be sure that the instrument is connected to a properly grounded ac supply. See the Warning of Section 2.3 on page 2-1.
3.4.2 Output BNC Connector
This connector supplies a voltage corresponding to the meter reading. The full-scale voltage is
1.1 V. Since the expanded 10dB ranges cover 11 dB on the meter scale, this would be equal to 0.1 V/ dB on those ranges. On the -40 to + 1OdB m range, the coefficient is l6.7mV/dB or 60dB per volt. The output impedance is approximately 10K ohms. This output is provided to drive recorders or plotters with inputs isolated from ground. If the output is connected to grounded devices, ground currents can occur which will give low-level power measurements with grossly inaccurate readings.
3.4.3 Cal Output lOmW, Type N Connector
The internal calibration oscillator supplies 10mW ±1.5% of RF power when the CAL button is pressed. The source impedance is 50 ohms ±2% (S WR less than 1.04), and harmonics are down 50dB with respect to the signal level. When the detector is connected to the CAL OUTPUT and the CAL button is pressed, the CAL screwdriver adjustment is used to cause the instrument to read full-scale. This will adjust the calibration for all ranges.
3.5 OPERATING PROCEDURE
WARNING: Continuous or peak power
levels in excess of +23dBm (200mW) can damage or destroy the diode power sensing device of the detector. Always take precautions to ensure that the power applied to the detector will be well below this level before connecting the detector to any RF power source.
1.
Connect the line cord if the instrument
is to be run from the ac line or if the
battery is to be recharged. Be sure to
observe the Warning of Section 2.4 on
page 2-1.
2.
Turn the 1034A ON by pressing the
POWER switch and allowing it to pop
out. The pilot light will illuminate
when power is applied. If the condition
of the battery charge is not known, con
nect the detector to the CALIBRATION
OUTPUT and press the CAL button. 1£
the same detector is being used that
was last used with the instrument, the
meter reading should be within a few
tenths of a dB of full-scale. If not, a
3-5
From the library of WØMTU
Model 1034-A
discharged battery should be suspec
than full-scale on the top range is ob
ted. The best method of determining
tained, reduce the input power without
that the battery is fully charged is to
delay because the meter will not indi
connect the instrument to a source of
cate any further increases in power that
line power for 16 hours or more (such as
could be great enough to destroy the
overnight). The battery will then be ready for 10 hours of use. There is no
danger of overcharging the battery.
detector. If low power levels are being measured,
-
periodically check the ZERO adjust
3.
Check the calibration by connecting the
ment. This is particular Iy important for
detector to the CALIBRATOR OUT
a period of one hour after turn on or
PUT. Adjust the CAL screwdriver ad
when there has been a change in the
justment to obtain full-scale deflection
ambient temperature in which the in
of the meter. This step can be com
strument is operating. The CAL adjust
bined with the battery check of step 2
ment should not require rechecking un
if desired.
less the ambient temperature has
changed by several degrees. The CAL
4-.
If it is possible to turn off the RF power
adjustment must be rechecked when
source that will be measured, do so and
ever detectors are changed.
connect the detector to the source. If
the source cannot be turned off, leave
3.5.1 Use of the Analog Output
the detector on the CALIBRATOR
OUTPUT. Press the ZERO button and
The analog OUTPUT connection can be used for
adjust the ZERO screwdriver adjust
driving recorders and plotters. See Section
ment so that the meter reads in the
3.4.2 on page 3-5 for the description of this
"Zero" range.
feature.
5.
Consul t the calibration factor chart on
the detector and set the CAL FACTOR
control to the value given for the fre
quency nearest the frequency of the
power source. If the power of the
source is not approximately known, con
nect enough attenuation to be sure that
the power will be below +IOdBm. Press
the top button (A-E) and read the power
on the -4-0 to+ 10dBm scale. The ap
proximate power level can then be de
termined so that the amount of attenu
ation required (if any) can be selected.
6.
To measure power, first press the top
button. Since the lower scale covers
the entire range of the instrument, it is
convenient to use if precise measure
ments are not required. If a precise
determination is required, observe the
letter lying between the same two ma
jor divisions as the pointer. Press the
button corresponding to the indicated
letter and read the power on the top
scales. If the power is below -4-0dBm,
try the -4-0 or -50dBm scales to obtain
the best reading. If a reading greater
3-6
From the library of WØMTU
Model l034-A
(This page intentionally left blank)
4--1
From the library of WØMTU
Model l034-A
(This page intentionally left blank)
4--2
From the library of WØMTU
Model 1034A
DETECTOR CO~ENSATIO~
......
RF
DETECTOR
r :p
InTH TE~IP 1--7)---1
SE~SI~G
THEft'lI STOR
RA'<GE
S"ITCHI~G
CO~lP~~SA Tl O~
ABOVE -c' dBm
I KHz
GE~ER.UOR
6.0 m\·,'dB
OUTPUT
SU'·I'!I~G
ANPUFIER
OUTPUT 1.1 \' F.S.
L
AC LINE{ INPITf
BATTERY CHARGER
BATTERY OSC I LLA.TOR
I~TEGR.UED
REGULATOR
+12 \' -12 \'
30 '1M: CALI BRATOR
CALIBRATOR OUT?lJT
Ie mK
L
Figure 4-1. Model 1034A Block Diagram
4-3
From the library of WØMTU
Model 1034A
4.
ELECTRICAL DESCRIPTION
tlVlty of the instrument will be correct regard less of the detector temperature.
4.1
INTRODUCTION
4.2.3 Preamplifier
Figure 4-1 on the attached page shows a block
The preamplifier is a high impedance, low noise
diagram of the major circuits contained in the 1034A. The block diagram will be described first, and then the circuits within the blocks
amplifier. It is chopper stabilized to reduce drift to an absolute minimum. A 1kHz
integrated circuit oscillator provides drive
-
will be described in detail. To better under
voltages for both the input chopper amplifier
stand the discussion of the circuits shown within
and the stabilizing chopper amplifier used for
the blocks of the diagram, refer to the sche
the log amplifier circuitry. The gain of the
matic diagrams of Section 7.
preamplifier is switched; for ranges below
-20dBm full scale it is 100, and for ranges above
and including -20dBm it is 10. The preamplifier
4.2
BLOCK DIAGRAM DESCRIPTION
feeds the log amplifier directly for all ranges.
In addition, it feeds the log amplifier indirectly
4.2.1 RF Detector
through the compensation circuit on the ranges
above -30dBm full scale.
To use the power meter, an RF detector must
be connected to its input for sensing the various
4.2.4 Compensation Circuit
power levels of a device under test. The detec
tor converts the RF power incident upon it to a
The compensation circuit starts to become
dc voltage. This voltage is proportional to pow
active when the RF power input level reaches
er at very low RF input levels, and gradually
approximately -27dBm. At the output of the
becomes proportional to RF voltage at high
preamplifier, this level will be amplified to
input levels. The sensitivity at low levels and
about 15m V using the gain of 10 of the -20d Bm
the point at which it starts to deviate from a
range. At this level there is no need for chop
square (power) law device are functions of the
per stabilization and none is provided. The
detector temperature. Accordingly, the detec
compensation circuit generates a current pro
tor temperature is monitored and appropriate
portional to the square of the input voltage.
corrections applied to the circuits following the
This current is summed in with the current from
detector. Also, there are slight differences in
the preamplifier at the input to the log ampli
sensitivity from one detector to the next. For
fier. At high signal levels the detector output
this reason, a resistor with a factory-deter
voltage deviates from square-law, but the cur
mined value related to the sensitivity of each
rent from the compensation circuit increases so
specific detector is mounted in the detector as
that the total current still corresponds to a
sembly. Four leads come from the detector.
correct square-law signal. The amount of com
These consist of a common lead tied to the de
pensation required depends upon both the tem
tector housing, a power sensing lead, a lead
perature and the characteristics of the particu
from the thermistor, and a lead from the detec
lar detector· To cause the circuitry to respond
tor sensitivity compensating resistor. The ther
properly to changes in temperature and the use
mistor is mounted inside the detector housing
of different detectors, connections are made to
and is in intimate contact with the brass shell
the thermistor bridge amplifier and the factory
of the housing.
selected resistor contained in the detector as
sembly.
4.2.2 Thermistor Bridge Amplifier
4.2.5 Logarithmic Amplifier
The thermistor bridge amplifier converts the
high impedance signal from the thermistor to a
The logarithmic (log) amplifier has a very wide
low impedance signal which is very nearly pro
dynamic range; from less than 0.5mV to greater
portional to temperature. The amplifier feeds
than an equivalent input of 100V. In order to be
the compensation circuits and the log amplifier
free of drift over that range, it is chopper sta
so that the square-law compensation and sensi
bilized. A transistor is used as the logging ele
4-4
From the library of WØMTU
Model 1034A
ment. Its output is temperature dependent and must therefore be compensated for changes in temperature. An amplifier following the log ging circuit provides a gain of 15, thus raising the signal level to 100m Y/dB.
4.2.6 Full-Scale Range Changing
The Model 1034A uses three methods to change the full-scale range of the instrument. These consist of: (1) Changing the gain of the input preamplifier; (2) Changing the current supplied to the temperature compensation circuit, and; (3) supplying differing offset currents to the output summing amplifier. The selection of the size of the span of the range (i.e. whether the scale covers 11 dB or from -40 to + 10dBm) is de pendent upon the gain of the output summing amplifier. A more complete discussion of the range changing arrangement follows in the de scription of the individual circuit blocks.
4.3
INDIVIDUAL CIRCUIT BLOCK DE
SCRIPTIONS
The following descriptions refer to the sche matic diagrams (SD) located in Section 7. Un less otherwise indicated, the majority of the discussion refers to SD 12932 and the reference designators mentioned in the discussion should be prefixed with A2.
4.3.1 Input Preamplifier
The input preamplifier is a chopper amplifier. It consists of an input chopper to convert the input dc voltage to square wave, a high gain ac amplifier, a synchronous detector to convert
the amplified square wave back to dc, and a dc amplifier to provide additional gain and low output impedance. An oscillator circuit pro vides the switching waveforms required to drive the chopper and synchronous detector. Overall
feedback determines the gain and makes the amplifier less dependent upon the parameters of
the circuit components than an open loop ampli fier would be.
Integrated circuit U2 is a combination oscillator and frequency divider chain. The oscillator runs at 64kHz and the six stage divider divides the frequency down to 1kHz. Outputs from the 2 and 4kHz dividers are combined in U3 to pro
vide narrow pulses to dr ive the synchronous de tector. Figure 6-1 on page 6-7 shows a timing diagram for this circuit. Square wave signals of opposite phase are supplied to Q 1 and Q2, alter nately turning on one and then the other. The result is that the input of the ac amplifier is first connected to the input signal, and then to the feedback resistor. The ac amplifier consists of the transistors Q5 through QIO. It has suf ficient bandwidth so that the signal at the emit ter of QIO is essentially a square wave with an amplitude proportional to the difference be tween the input and the signal fed back from the output of U 1. Q 11 and Q 12 are turned on briefly at alternate ends of the square wave period. Transient signals that occur due to the switching of the inputs to the amplifier have decayed by the time the output switches are turned on at the end of the cycle. The feedback resistive divider is selected to allow a gain of 100 for ranges of -30dBm and below. For ranges above and including -20dBm, the divider is set for a gain of 10. Ql3 short circuits the unused resistor of the divider when a gain of 100 is selected. This keeps leakage currents from the range switch out of the amplifier. Q4 and Q7 generate a gating action which turns the amplifier off during the instant of switching, thereby reducing the effect of the switching transient.
4.3.2 Log Conversion Circuit
The log conversion circuit is a high gain opera tional amplifier with feedback from the collect or of a transistor. The emitter-base voltage of the transistor is proportional to the log of the collector current over many decades of current values. At 25 0 C, the emitter-base voltage changes by 60mY for each factor of ten that the collector current changes. This factor is di rectly proportional to the absolute temperature so that for each degree C of temperature varia tion, the factor will change by about 0.3%. This change with temperature is compensated for by using a thermistor, RT 1, to shunt the amount of current caused by the increase in temperature away from the input summing amplifier, Al U 1.
The operational amplifier segment of the log conversion circuit is chopper stabilized by using an amplifier similar to the one used in the input preamplifier. Since the sensitivity is not as great, the circuit is simpler. The integrated
4-5
From the library of WØMTU
Model 1034A
amplifier, U8, receives ac signals directly through C34. DC signals are routed through the chopper amplifer and go to pin 3 of U8. The current summing junction is common to the chopper amplifier and to C34. If the summing junction is not at zero dc potential, the chopper switching transistor, Q14, will convert the po tential to an ac signal. The ac amplifier, U7, amplifies the signal and supplies it to the syn chronous demodulator, Ql5 and Q16, where it is converted to dc. A low pass filter, R76 and C35, removes the ac component and the dc cor rection signal goes to pin 3 of U8. This causes the output of U8 to change the current through the logging transistor to bring the sum ming junction back to zero.
In addition to the logging factor changing with temperature, the saturation current of the log ging transistor also changes. To compensate for this effect, an additional transistor is supplied with a fixed current (for a given range), and a differential amplifier amplifies the difference in the emitter-base potential between the log ging and compensation transistors. The two transistors are mounted in the same package, Q 18. The differential amplifier is U 1O. U9 is an operational amplifier, with the compensating transistor providing the feedback so that the emitter-base potential of the transistor is the log of the current supplied to the summing point at pin 2. Range switching for the top three ranges is accomplished by changing the current supplied to the compensating transistor (by a factor of ten) for each range.
4.3.3 Square-Law Compensating Circuit
Above about -27dBm, the detector begins to significantly depart from square law. Since the instrument is required to be linear in power, compensation is required. This is so that the total current supplied to the logging circuit summing junction continues to be square law at all levels over the total range of the instru ment. This is accomplished by generating a sig nal proportional to the square of the input sig nal and adding it to the input at the log ampli fier summing junction. This signal is negligable at low input levels, and is many times larger than the input signal at high input levels. The squaring function is implemented by first log ging the input signal, amplifying the logged sig nal by a factor of two, and then taking the antilog.
Integrated amplifier U4 has feedback supplied by the diode connected to pin 8 of U5. The voltage at pin 8 of U5 will be proportional to the log of the input voltage at levels above -27 dBm. The circuit will be inactive at low levels due to the offsetting action of R40. The diode connected to pin 11 of U5 acts merely to limit the voltage excursion of U4 when the circuit is inactive. The diode connected to pin 5 of U5 transmits the signal to U6, and compensates for changes in saturation current in the logging diode due to changes in temperature. Amplifier U6 has a gain of 2 (slightly adjustable by R48), and supplies the amplified voltage to the diode connected to pin 2 of U5 causing the antilog function to become active. The diode connect ed to pin 3 of U5 compensates the antilogging diode for changes in saturation current due to temperature changes. All of the diodes in U5's circuitry are essentially identical bec2;Jse they are part of an integrated circuit. The current from pin 1 of U5 is thus proportional to the square of the input voltage, and it adds directly with the current from the input preamplifier at the input summing junction of the log ampli fier. The circuit is switched off for ranges below -20dBm full scale to avoid the possibility of leakage currents causing errors below the levels where compensation is required.
4.3.4 Temperature Compensation
Amplifier U 11 supplies temperature compensa ting signals to the square law compensation cir cuit by way of R61 to correct for shifts in de tector sensitivity caused by temperature chang es, and to the output amplifier, Ai Ui, to cor rect for changes in overall sensitivity. The sig nal supplied to the compensation circuit cor rects only for linearity, so additional correction is required at AIUl. Ull is arranged as a bridge amplifier fed from a high impedance thermistor. The output of the amplifer is very nearly proportional to temperature over the temperature range of 00 to 50°C.
4.3.5 Range Switching
The range of the 1034 A is controlled by three parameters as described in Section 4.2.6 on page 4-5. The operation of the switching action can be seen in Table 4-A on the next page. The equivalent dB values are selected so that the sum of the full scale signal signal and the dB
4-6
From the library of WØMTU
Model 1034A
values will be zero for each range except for the -40 to +lOdBm (A-F) range. This corre sponds to the meter dB reading at full scale. On the (A-F) range the gain of the output am plifier is decreased by a factor of six so that a normal full scale reading of +10dBm would only
deflect it IldB up scale. The scale is arranged for 66dB for full scale, so an offset of 55 dB is required. Note that increasing the log compen sating current has the effect of decreasing the magnitude of the signal from the differential amplifier, U9.
Table 4-A. Range Switching Gains & Offsets
RA~GE
dBm
PRE-A1'lP.
GAr~
~o. E~.dB
LOG. CO~lF.
C~RRE\T
~A EQ.cS
OUTPUT OFFSET
C~RRE~T
>;A
(9.5 ~A/ib) EQ.cB
+10 10 +10 380 - 20
0
0
I 10 +10 38 - 10
c
I
-10
10 +10 3.8 0
0
-20
10 +10 3.8
0
95
-30 100 "'20 3 8 I 0
95
-40 100 +20 1 3..8 1 0
190
I -50 100 +20 13.8 0
285
j"ol-20 +10 1:) +10
523
(A-F)
0
(. I
C
i
+10 ·10
+ZG
+30
+5~
emitter of AIQl to maintain oscillation at the correct level. Diodes AICR3 and AICR4 com pensate the circuit for changes in the rectifica tion characteristics of AICR5 when there is a change in temperature.
4.3.7 Power Supply
An ac voltage drives the rectifiers CRlO through CR 13 to supply unregulated dc voltages to the filter capacitors C46 and C47. Regula ted dc voltages are derived from these by inte grated circuit regulators, U12 and U13. The regulators are provided with circuits to limit the current to a safe value and prevent damage in the event of a short circuit of short dura tion. For operation from the ac line, a trans former supplies the ac voltage to the recti fiers. Battery option instruments have an oscil lator supply which generates an ac voltage for the rectifiers. The battery supply generates the ac voltage by a modified form of multivibrator A3Q3 through A3Q6. The circuit oscillates at 30kHz to supply power to the rectifiers through A3T2. Charging of the battery occurs whenever the line voltage is connected to the instru ment. Integrated circuit A3U 1 maintains the peak of the rectified line frequency waveform at a constant value regardless of the input line voltage. A3RTl causes the voltage to vary with temperature in accordance with the battery's requirements. Current from the regulator is limited to a safe value.
4.3.6 Calibrator Oscillator
Referring to SD 13065, transistor AIQl is ar ranged in a ground based oscillator circuit with feedback supplied to its emitter through Al C14. It feeds the CALIBRATOR OUTPUT con nector through a 5 pole low pass filter and a 4dB attenuator to assure freedom from harmon ics and a good source match at the output. The diode AICR5 rectifies the peak voltage supplied to Al R32, thereby generating a dc voltage pro portional to the RF voltage from the oscilla tor. Amplifier Al U2 compares this voltage to a stable dc signal derived from the -12V power supply and supplies just enough current to the
4-7
From the library of WØMTU
;'ilodel 1034-A
5. PERFORMANCE VERIFICAnON TESTS
5.1 GENERAL
. The purpose of this section of the manual is to provide a means of verifying proper operation of the Model 1034-A for receiving inspection and when making periodic performance evalua tions. If the instrument passes the tests given in this section, it can be assumed to be opera ting proper ly and used wi th confidence. These tests do not check the operation of the power detector as they are only intended to check the health of the indicating instrument. The power detector can be checked using a properly cali brated 1034-A as an indicating unit. Alterna tively, the detector can be checked by using the Detector Performance Evaluation Procedure given on page 2 of the "Detector Element and Tracking Resistor Replacement Procedures" Technical Information sheet located at the end of Section 1 in this manual.
5.2 EQUIPMENT REQUIRED
The following equipment is required to perform the measurements given in this section.
a. A precision dc power supply capable of 0.01% accuracy and with the ability to be
set to 70uV. It is possible to use a preci sion voltage divider constructed of 0.01% resistors wi th an attenuation factor of 100 (4-0dB) to obtain the voltages called for in the first three lines of Table 5-A. Such a divider can be made from 990 ohm and 10 ohm 0.01% resistors. In order to apply voltages to the input of the instrument an adapter must be constructed. Figure 5-2 shows a diagram for the fixture. The re sistors shown can be conveniently posi tioned within the male plug mating with the instrument. In addition, a 50 ohm 0.1 % resistor will required when checking the calibrator output. The resistor should be placed in an adapter box with a con nector mating with the power supply on one side and a Type N female connector on the other side. Suitable boxes can be obtained from most electronic parts dis tr ibuters. The resistor should be connect ed from the high side of the power supply connector to the center pin of the Type N connector. The low side of the power sup
ply and the shell of the Type N connector should be tied together.
b. A digital voltmeter (DVM) with 0.01 % ac curacy and luV resolution. If it is not planned to check the output of the Cali brator, lmV resolution and 0.1% accuracy will be satisfactory.
Table 5-A. Tracking Performance Tests
INPlIT VOLTAGE
-70 \JV -0.70 mV -6.65 mV -48.6 mV -0.228 V -0.885 V
RANGE
-40 dBm -30 dBm -20 dBm - 10 dBm
a dllm
+10 dBm
METER READI G
a dB iO.2 a dB iO .1 a dB W.l a dll to. 1 a dB to.l a dB to. 1
OUTPUT VOLTAGE
1.1iO.02 1. liO .01 l.UO.Ol 1 .1 iO . 01 1.1tO.01
1.1 t(1. a1
RA'JGE
METER READING
-~O dllm -..'0 dBm -10 dBm
o dBm
+iO <iBm
------
-10 dB iO.2 -10 dfl iO .1 -10 dB iO.l -10 dB to.l -10 dB to. 1
OUTPUT VOLTAGE
0.1 iO.02 0.1 iO.Ol 0.1 to.Ol 0.1 iO.Ol 0.1 to.Ol
5-1
From the library of WØMTU
Model I034A
MEASURED 50 ;/ =1%
J
\
TYPE ~ DUAL ~LE BARREL ADAPTER
FLUKE
~IODEL ASS TIiER.\fAL
CO\\'ERTER
1 V I~PlJf
DC VOLTAGE SOURCE
VOLTAGE SOURCE
MATI~G
CONNECTOR
SWITCHCRAFT CONNECTOR
112S04M
0:
I
i
I
:
I
-
,
iI
162 K n
1ATTENUATOif
1%
t:TION~
3
1 Mn
S%
Figure 5-1. Modified Thermal Converter for Checking the Calibrator Output
Figure 5-2. Fixture for Applying DC Voltage to the Model 1034A
c. For checking the Calibrator output, a
Thermal Voltage Converter will be needed to be used as a transfer standard. The maximum voltage range is IV. A unit such as the Fluke Model A55 Thermal Transfer Standard or equivalent is recom mended. It is required that this device be
matched to 50 ohms. The impedance of the converter is approximately 200 ohms, so it is necessary to measure its resis tance very accurately (within 0.1%) and
select a value of resistance to place in parallel with it to make its value become 50 ohms ±1%. Make all connections very short, preferably soldering the resistor across the end of a Type N Tee connector as shown in Figure 5-1. Be careful not to apply a voltage in excess of 1V to the Converter when measuring its resistance or the Converter could be destroyed.
5.3 TRACKING WITH DC VOLTAGE
In order to operate correctly with a power de
tector connected to its input, the instrument
must respond as shown in Table 5-A. If the pre
cision dc power supply being used does not have
adequate low level accuracy or stability, the
measurements given in the first three lines of
Table 5-A must be made with the attenuator
descr ibed in Section 5.2.a in place. In any case,
the instrument ZERO setting must be adjusted
after connecting the power supply or attenuator
and just before the measurements called for in
Table 5-A are made. To do this, set the power
supply to zero volts and follow the procedure
given in Section 3.5 on page 3-5. Also, the CAL
setting must be adjusted by setting the power supply to O.7mV, pressing the -30dBm button,
and adjusting the CAL setting so that 1.1 V
±lmV is measured at the OUTPUT connector.
The voltages called for in Table 5-A can now be
applied.
5-2
From the library of WØMTU
Model l03lJ.A
Two sets of observations must be made at each input voltage level except the last one. Take the readings indicated for both settings of the range buttons at each input level.
5.4 CALIBRATOR OUTPUT LEVEL CHECK
Set the precision power supply to l.lJ.llJ. V and connect the 50 ohm resistor assembly to the output of the supply. Connect the DVM to the output of the converter. Connect the converter (modified for 50 ohm impedance as previously described) to the resistor at the output of the supply. Record the reading of the DVM, reading it to a precision of luV. Reverse the polarity of the power supply and record the new reading with the same 1uV precision. Press the CAL button and connect the converter assembly to the CALIBRATOR OUTPUT. Read the DVM. Compare the reading with the average reading obtained when the converter was connected to the power supply. If the two differ by more than 1%, reconnect the converter to the supply and set the supply so that the voltage from the converter is the same as it was when connected to the CALIBRATOR OUTPUT.
Note the reading of the supply, reverse the polarity, and again set the supply so that the thermal converter output matches what it had been when attached to the CALIBRATOR OUT PUT. Aver age the two supply voltages. When this is done, the supply voltage should be between 1.lJ.25V and 1.lJ.03V. It may be neces sary to repeat the procedure several times in order to get consistent results.
This completes the Performance Verification Tests for the Model l03lJ.A. If the instrument does not meet one or more of the performance criteria, it should be calibrated according to the procedures given in Section 6, the next section.
5-3
From the library of WØMTU
Model I034A
6.
MAINTENANCE
6.1
PERIODIC MAINTENANCE
.The following maintenance should be performed once a year unless the instrument is operated in an extremely dirty or chemically contaminated environment, or is subjected to severe abuse (such as being dropped). In such cases, more frequent maintenance is indicated (immediate, if severly abused or dropped).
a.
Blowout all accumulated dust with
forced air under moderate pressure.
b.
AIR12, METER CAL
Used to set the meter drive resistive
divider so that its reading changes by
10dB when the instrument's range is
changed from -10 to -20dBm with -20
dBm applied to the instrument's input.
c.
AIR19, CAL FACTOR ADJUST
Used to adjust the CAL FACTOR panel
scale to correspond to the change it
causes to occur at the output.
d.
AIR22, 10mW OUTPUT CAL
Adjusts the calibrator to supply exactly
10mW to a 50 ohm load.
b.
Inspect the instrument for loose wires
and damaged components. Check to see
that all wire leads are properly seated
on their PC board pins.
e.
A1R36, -30dBm CAL
Used to adjust the output amplifier for
a correct voltage when O.7mV is applied
to the input.
c.
Make a performance check in accord
f.
A2R48, COMP AMP GAIN
ance with the procedures of Section 5.
Adjusts the compensation circuit for
If the performance is within specifica
proper operation between OdBm and
tions no further serv ice is required.
-lOdBm.
g.
A2R57, MEDIUM LEVEL CAL
6.2 INTERNAL ADJUSTMENTS AND TEST
Used to adjust the compensation circuit
POINTS
for proper operation near OdBm.
The following is a listing of the various internal
adjustments and the functions of the major test points for ready reference. Do not- attempt to make any adjustments until the material of Sec tion 6.3 on page 6-2 has been carefully read. It is also recommended that the Electrical De scription given in Section 4 be read to better understand how the instrument operates.
6.2.1 Description of Adjustments
The function of each adjustment is as follows: (Reference the schematic diagrams of Section 7 for the location within the circuitry. The ref erence designations AI, A2, and A3 specify the proper schematic as shown on page 7-1, and the
R numbers and names will be shown on the schematic.)
a.
AIR9, CAL OUTPUT
Used to adjust the voltage divider
feeding the OUTPUT BNC connector to
obtain 1.1 V for a full scale signal.
h.
A2R70, SECOND STAGE NULL
Used to adjust the second stage
amplifier for zero offset.
A2R81, HIGH LEVEL COMP
Adjusts the log amplifier for correct operation near +lOdBm.
j.
A2R83, +lOdBm TRACKING
Used to cause the meter reading at
OdBm to be the same on both the OdBm
and +lOdBm scales.
k.
A2R88, OdBm TRACKING
Causes the meter reading at -lOdBm to
be the same on both the -10 and OdBm
scales.
1.
A2RI02, LOG CAL
Used to set the gain of the output
amplifier for the correct coefficient.
6-1
From the library of WØMTU
Model 1034-A
m.
A3R4, 3.58V ADJ
Sets the charging current for the battery.
h.
A2J9 (TP29), GROUND
Used to connect TP24- to ground in the
calibration procedure.
1.
A3J1 (TP31),3.58V
Used to set the 6.9V charging voltage on
battery option instruments.
6.2.2 Description of Test Points
The signals available at each of the various test points or the functions of the test points are as follows:
a.
A2J1 (TP21), REFERENCE COMMON
The common reference point for volt
age measurements.
b.
A2J2 (TP22), CHOPPER FREQUENCY
This is a logic output signal greater
than 5V p-p. It can be measured with a
high input impedance counter; frequen
cy 1kHz ±100Hz.
c.
A2J3 (TP23), INPUT AMPLIFIER OUT
PUT
Permits the gain and zero condition of
the input amplifier to be measured.
d.
A2J4- (TP24-), COMPENSATION CIR
CUIT OUTPUT
Permits the point at which the compen sation circuit becomes active to be in
dependently determined.
e.
A2J5 (TP25), SECOND STAGE SUM
MING JUNCTION
Allows currents to be injected into the
summing junction for calibration pur
poses.
f.
A2J6 (TP26), +12V
Measures the +12V supply voltage. Voltage
should be within ±O.2V of +12Y.
g.
A2J7 (TP27), -l2V
Measures the -12V supply voltage.
Voltage should be within 5mV of -12V.
6.3
CALIBRAnON
6.3.1 Equipment Required
The following equipment is required to calibrate the Model 1034-A. Specifications given for the equipment are minimum. Equipment capable of better performance can, of course, be used.
a.
A digital voltmeter (DVM) with 0.03%
accuracy and four digit resolution with
20% over-range capability. On the
most sensitive range the least signifi
cant digit must be 10uV or less. Re
commended is the Fluke Model 8600A
Digital Multimeter or equivalent.
b.
A precision power supply covering the
range between 7uV and 1V with accura
cy and resolution of 0.1 %. At the 7uV
level, it is only necessary for the supply
to have 1% accuracy for changes in
voltage setting. A small, fixed offset
of a few microvolts is acceptable. In
order to achieve satisfactory low level
performance from some manufacturer's
models, it may be desireable to make a
voltage divider consisting of a 990 ohm
and a 10 ohm ±0.01 % resistor. This will
attenuate the output by 4-0dB (100:1)
and permit the supply to operate at high
level even when a small output is re
quired. A recom mended instrument
that will not require a divider is the
Digi tec Model 3110 Precision Voltage/
Current Source or equivalent.
c.
An ac to dc Thermal Voltage Converter
similar to the Fluke Model A55 or
equivalent. The Model A55 has approxi
6-2
From the library of WØMTU
~~odel 1034A
mately 200 ohms input resistance. When used, it is required to measure its input resistance and connect enough resistance across its input to change it to 50 ohms ±l %. See Figure 5-1 on page 5-2 for an illustration of this ar rangement. In addition, an adapter is needed to connect the assembly to the output of the calibrator.
d.
An adapter box with double banana
plugs on one side and a Type N female
connector on the other side. A 50 ohm
±O.l % resistor should be used to con
nect the center pin of the Type N to the
high side of the double banana plug.
The low side of the double banana
should tie to the Type N shell.
e.
A frequency counter capable of count
ing 30MHz from a 50 ohm source with a
1.1 V open circuit output. The counter
should be able to count 1kHz while pre
senting an impedance of 1M ohm shunt
ed by a few pF for use in measuring the
chopper frequency. The signal level for
this is greater than 5V.
6.3.2 Calibration Procedure
The components used in the Model 1034A are extremely reliable and generate little heat. Consequently, there is little drift due to com ponent aging, and adjustments are rarely re quired. It is strongly recommended that if mea
surements indicate that an adjustment is set within the specified range, that is not attempt
ed to put it "right on". It is often the case that variations in the equipment being used to con duct the test account for small differences in measured values. Since many adjustments are interactive, be absolutely sure that an adjust ment is really required before making it.
If a component is replaced, depending upon its location in the circuitry, only certain of the calibration steps need be performed. In gen eral, only those steps shown in the section per taining to the specific circuit that has been re paired need be carried out.
Since the detectors used with the Model 1034A
are interchangeable, the entire test procedure makes use of standardized dc voltages applied
to the input in lieu of a detector. In order to simulate the detector temperature compensa ting thermistor and individual calibration resis tors, resistors must be connected to pins within the instrument. Connect aiM oh m ±5% resis tor between pins 14 and 12 on the A2 board, and a 162K ohm ±l % resistor between pins 9 and 12 on the A2 board. If a number of instruments are going to be calibrated, it will be worthwhile to make a connector to fit on the front panel INPUT connector with these resistors perman ently installed. See Figure 5-2 on page 5-2. In this case, the 1M oh m resistor is installed be tween connector pins 2 and 4 and the 162K ohm
resistor between pins 3 and 4. A shielded pair of wires can be brought out from pins 1 (center conductor) and 4 (shield). This is useful for sup plying dc calibration voltages to the input (cor responding to pins 15 and 16 of A2). A connec tor to mate with the front panel jack is avail able from WMI under part number 13357 or can be purchased locally as Switchcraft Part Num ber 2504M.
Before applying power to the instrument, adjust the mechanical zero of the meter so that the pointer is at the left edge of the scale. This should be done with the instrument in the posi tion in which it is normally used (standing up or lying down). Set the 50/75 ohm switch to 50 ohms, set the CAL FACTOR switch to 0 (cen ter), and remove the RF detector. With the ex ception of Step 1, following, and when the volt age at the output connector is measured, volt ages are to be measured with respect to the common test point, TP21.
The following steps must be carried out in the order listed. It will be helpful to read the en tire procedure through once before starting. Allow at least one-half hour of warm up time, with the instrument connected to the dC line,
before starting.
Step 1.
Check and adjust the battery charg ing voltage by connecting the volt
meter between chassis ground and
TP31. Set A3R4 to 3.S8V ±a.OI V.
6-3
From the library of WØMTU
Model 1034A
Connect the DV M to TP23 and press
the -30dBm button. The DVM should
read apprOXimately 100m V. Now turn
the supply off and adjust the front panel ZERO control so that the DVM
reads O.OOmV ±lOOuV. Press the -20
dBm button and check that the DVM
reads O.OOmV ±30uV. Readjust the
ZERO control if necessary to simul
taneously obtain both conditions.
Once again apply 1mV from the pow
er supply. Check and note the DVM
Step 2. Check the positive and negative 12Y
readings for both the -30dBm and
supplies. Connect the voltmeter low side to common, TP21. Connect the high side to TP27 and verify -12.000Y ±O.5Y. Move the voltmeter's high lead to TP26, and verify +12.000Y ±O.5Y.
-20dBm buttons pressed. The volt
ages should be very nearly 100mV and
10mV respectively. The ratio of the
two voltages must be 10.00 ±0.5%. If
this is not the case, check to be sure the measurement has been correctly
made. If it is established that the
ratio is not within tolerance, trouble
Step 3. Connect the counter between com
is indicated in the input amplifier or
mon, TP21, and TP22. Check to see
its feedback circuit. If correct, dis
that the frequency is 1kHz ±lOOHz.
connect the power supply.
Disconnect the counter.
Step 7. Using a clip lead, short pins 15 and 16
Step 4. Check to see that the ZERO control
of A2 together. Move the power sup
has sufficient range. Connect the
ply to TP25 and adjust the power sup
voltmeter to TP23 and set the front
ply to give -15mV. Connect the DVM
panel ZERO control so that the volt
to the front panel OUTPUT connector
meter reads OV ±1mV with the -30
and adjust the front panel 10mW CAL
dBm button pressed. Move the volt
control to cause the DV M to read
meter to A2 pin 13 and measure the voltage. It should be less than about
±8V. If it is not, trouble with the input amplifier is to be expected.
O.OOOV ±lmV with the -lOdBm button pressed. Press the -20dBm button and adjust (1) AIR9 (CAL OUTPUT)
to obtain 1.000V ±lmV, and (2) AIR12
(METER CAL) to obtain a meter de
Step 5. Check the mechanical centering of
flection of -ldBm.
the knob for the CAL FACTOR con
trol. Connect the voltmeter to pin 2
Step 8. Attach the power supply to TP25 and
of A2 and set the CAL FACTOR con
set for -15mV. Press the -IOdBm
trol to obtain OV as close as possi
button and adjust the front panel
ble. If the knob does not indicate 0 within less than one-quarter of a divi
CAL control so that the DVM reads O.OOOV ±lmV. Apply -150mV and ad
sion, loosen the two allen screws and
just A2RI02 (LOG CAL) so that the
reset it so that it does. Reset the
voltage changes by l.OOOV ±lmV. It
CAL FACTOR control to 0 for all of the following steps.
will be required to alternate between -15 and 150m V, resetting the pot
each time until the adjustment is sat
Step 6. Check the gain tracking of the input
isfactory.
preamplifier. Using the precIsIon
power supply, apply -l.OOmV to pin 15
Step 9. Set the power supply for -150mV into
of A2 with the grounded side of the
TP25. Press the -lOdBm button and
supply connected to pin 16 of A2.
ad just the front panel CAL control so
6-4
From the library of WØMTU
Model 1034A
that the DVM reads 1.000V ±l mY. Press the OdBrn button and adjust A2R88 (OdBm TRACKING) to obtain O.OOOV ±lmV.
Step 10. Set the power supply for -1.5V into TP25. Press the OdBm button and ad just the front panel CAL control so that the DVM reads 1.000V ±l mY.
Press the +lOdBm button and adjust A2R83 (+lOdBm TRACKING) to ob
tain O.OOOV ±lmV. Disconnect the power supply from TP25.
Step 11. Press the -30dBm button. Connect the DVM to TP23 and adjust the front panel ZERO control to cause a read
ing of O.OOmV ±lOOuV. Remove the short circuit from the input terminals that was placed there in Step 7. Con nect a short circuit clip lead from TP29 to TP24. Connect the power supply to the input terminals and set it for O.7mV. Move the DVM to the output connector and adjust the front
panel CAL control to give 1.1 V ±lmV. Press the -20dBm button and adjust A2R70 (SECOND STAGE
NULL) to obtain 0.1 V ±lmV. Go back to the -30dBm button, reset the front panel control, and repeat the proce
dure if necessary until both voltages are within ±lmV. Remove the short circuit clip lead.
Step 12.
Set the front panel CAL control to its extreme counter-clockwise limit and be sure that the CAL FACTOR con trol is set to center (0). Set the
power supply to apply -O.7mV to the input terminals. Connect the volt meter to the OUTPUT connector and adjust Al R36 (-30dBm RANGE CAL)
to obtain 0.950V ±lmV.
The following three steps involve setting adjustments that interact with each other. After proceding through Steps 13, 14, and 15, go back to Step 13 and repeat the procedure as many times as is required to obtain the results specified in the procedures. The process con verges to the correct results rather rapidly. After going through the procedure several times, the required adjustments should be able
to be accomplished without difficulty.
Step
13. Set the power supply to provide -O.7mV to the input. Connect the voltmeter to the OUTPUT connec
tor. Press the -30dBm button and adjust the front panel CAL control to obtain 1.100V ±lmV. Reset the pow
er supply to provide -O.228V to the input. Press the OdBm button and set
A2R57 (MED LEVEL CAL) to obtain 1.100V ±lmV.
Step 14.
Set the power supply to provide 48.6 mV to the input. Press the OdBm but ton and adjust A2R48 (COMP AMP GAIN) to obtain O.lV ±lmV.
Step
15. Set the power supply to provide 0.855V to the input. Press the +10 dBm button and adjust A2R81 (HIGH LEVEL COMP) to give 1.1V ±lmV at the output.
Step
16. Set the power supply to provide -0.228 V to the input. Press the +10 dBm button and adjust the front panel CAL control so that O.lOOV is obtain
ed at the OUTPUT connector with the CAL F ACTOR control set to O. Set the CAL FACTOR control to -ldB and +ldB noting the reading at each point. Adjust AIR19 (CAL FACTOR ADJ) so that the readings are as close to O.OOOV and 0.200V as
possible. Be careful when setting the CAL FACTOR control to be sure that the knob lines up exactly with the panel mark. There might be some re sidual difference between the setting of AIR19 to obtain OV and that re quired to obtain 0.2V. The correct adjustment in this case will result in equal (and opposite) errors at both ends of the CAL FACTOR range.
Step 17.
Reset the CAL FACTOR knob so that O.OOOV is read at the OUTPUT con nector. Set the 50/75 ohm switch to 75 ohms. The DV M should read 0.276V ±12mV. If not, trouble is indicated in the switch circuit.
-'
6-5
From the library of WØMTU
Model 1034A
Step 18.
For a final check of the calibration of the instrument, check the tracking of the power ranges. Using the power supply, apply the voltages given in the table below and note the readings obtained by the voltmeter connected
to the OUTPUT connector. Set the 50/75 ohm switch to 50 ohms.
Step 21.
The purpose of this adjustment is to set the output of the calibrator to 10mW ±1.5%. This constitutes a very
high degree of accuracy for a power measurement at 30MHz. According ly, the procedure must be performed with great care. If the .proper equip ment is not available, do not attempt
to make the ad just ment.
Voltage
Range Reading Comment
Set the precision power supply to
o
ZERO ZERO SET Adjust
1.414V. Connect the adapter describ ed in Section 6.3.1.d to the output of
ZERO con
the supply, and connect the Thermal
trol so
Converter to the output of the adapt
meter
er. Read the dc output of the Ther
pointer is on
mal Converter to a precision of
the zero set point.
0.1 %. Reverse the polar ity of the supply and repeat the reading. Re
-
cord the average of the two volt
O.7mV -30dBm 1.100V
Adjust CAL
ages. Turn the calibrator on by pres
FACTOR
sing the CAL bu tton. Attach the
control to
Thermal Converter to the CAL OUT
obtain read
PUT and adjust AIR22 (lOmW OUT
ingof±lmV
PUT CAL) so that the converter has
the same output voltage as it did
70uV -40dBm 1.100V
±30mV
when it was connected to the power
supply. Reconnect the Converter to
6.65mV -20dBm 1.100V
±lOmV
the supply through the 50 ohm adapt
er and check to see that the output is
48.6mV -lOdBm 1.100V
the same as before. If there is signif
icant difference in the reading before
228mV OdBm 1.100V
±lOmV
and after the calibrator measure
ment, repeat the procedure. This last
855mV +lOdBm 1.100V
±lOmV
step is important because the Con
verter has a tendency to drift with
Step 19. Using the values given in the above
changes in temperature.
table, apply the voltages. With the
A-F button pressed, check the track
This completes the calibration procedure.
ing of the -40 to +lOdBm meter
scale. Tracking should be wi thin
0.5dB down to -30dBm, and within
2dB to -40dBm.
Step 20. Press the CAL button and connect the frequency counter to the CALI BRATOR OUTPUT connector. The
frequency should measure 30 MHz ±3 MHz. If not, and it is fairly close, it can be ad justed by sligh tly bending the oscillator coil, AILl, to change the spacing between the turns. Otherwise, check for out-of-toler ance components in the oscillator cir
cuit.
6.4
TROUBLESHOOTING
In order to localize the source of trouble in an instrument such as the 1034A, it is important to have a detailed working knowledge of the in stru ment. Section 4, Electrical Description, should be carefully read and the schematics in Section 7 should be used. Relevant dc vol tages are shown on the schematics, and are typical of values to be found in normal operation. Data
6-6
From the library of WØMTU
Model 1034A
shown on the schematics was taken with a digi tal voltmeter with 10M ohm input impedance. The front controls were set as follows:
POWER:
ON
RANGE:
CAL
CALIBRA TION
FACTOR:
CENTERED (0)
50/75 ohm SWITCH: DIRECT 50 ohms
The detector was connected to the CALIBRA TOR OUTPUT and the CAL control set so that
the meter read full-scale.
The only significant ac signals present in the instrument are those in the chopper circuit. A timing diagram for those signals is shown in Figure 6-1.
6.5
SEMICONDUCTOR DEVICES
A variety of semiconductor devices are used in this instrument. The type numbers shown on
the schematics are either EIA registered device numbers or manufacturer's numbers. Devices meeting the corresponding specifications can be used for replacement purposes, and can proba bly be obtained locally. Individual instruments may have equivalent devices of other manufac
turers installed, and the type number may not agree with those shown on the schematic dia gram or parts list.
6.6
ACCESS TO INTERNAL COMPO
NENTS
To gain access to the internal components, re move the two screws underneath the case and
then return the case to an upright position (panel up). Remove the two large screws at the left and right edges of the panel. These last
two screws will be somewhat difficult to turn because they are screwed into elastic nuts.
Pressure should be applied to the screwdriver so that it will not slip and mar the panel.
U2-4 U2-S U2-7 U3-ll U3-10
U3-3 U3-4
~r-----l IDS -------.,.1
Figure 6-1. Chopper Circuit Timing Diagram
6-7
From the library of WØMTU
Model 1034A
~.'
Reference Designator
Al A2 A3
SECTION 7 SCHEMATIC DIAGRAMS
Title
Drawing Number
Portable Power Meter ··..···....··.......·····.····.···...····· 13216
Calibrator and Meter Circuit ·.·....·..·..·.···..····...·..····.· 13065
Input Amplifier (3 Sheets) .···.....···..·....·..·.···..·.·.···.. 12932
Power Supply ··.....····..··..··...··.......... " ··...·..··.·.· 13207
7-1
From the library of WØMTU
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MEASUREMENTS INCORPORATED
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INPUT AMPLIFIER
12932 I~ ..... 10. SHEET '1 OF 3
From the library of WØMTU
A
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±7 AND ARE "io '/4W, CAPAC.ITOR.. I/ALLJE.7 AP.£ IN MIC.ROFARAD6,
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UI'Z.
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J5 r - - - - - - . - -
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lin
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MEASUREMENTS INCORPORATED
f'\IJ AUt. U1J0IlIIil
POWER SUPPLY
13207 D
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From the library of WØMTU
~Aodel 1034A
SECTION 8 REPLACEABLE PARTS LISTINGS
Description
Page No.
Chassis Assembly 1/13214 · ····························································· 8-2
Calibrator & Meter Drive Circuit PC Board Assembly 1113064 (Bd. IIAl) ···················· 8-2
Input Amplifier PC Board Assembly 1112930 (Bd. IIA2) · ··································· 8-4
Battery Power PC Board Assembly 1113206 (Bd. IIA3) ····································· 8-10
Cross Reference from WMI Part Number to Manufacturer's Part Number .··.····..····....·. 8-12
Federal Supply Code Numbers for Manufacturers ·...·...·...·.·....·.·....···..···....... 8-14
8-1
From the library of WØMTU
Model 1034A
CIRCUIT REFERENCE PART NO.
DESCRIPTION
CHASSIS ASSEMBLY 1113214
Cl
10000-4
Capacitor, Ceramic
.001 lJ F ±20% 1000Y
C2
[0000-11
Capacitor, Ceramic
.01 lJF
±20% 1000Y
CRI
12389
Diode, Light Emitting
Fl
10064-7
Fuse, 0.25A, Slo-Bl0, 250Y
Jl
12355
Connector, AC Receptacle, 3 pin
J2
11689
Connector, Insulated, BNC
J3
10821
Connector, N (Part of 13289)
J4
13358
Connector, Audio Jack, 4 Contact
J5
13242-1
Connector, PC Edge 10/20 Contact
-
(Part of cable harness 13286)
Ll
10182
Shield Bead
L2
10182
Shield Bead
Ml
15357
Meter, Panel
Rl
11688-1
Resistor, Yariable
R2
12233-2
Resistor, Yariable
R3
11676-1
Resistor, Yariable
lOOK ~ 25KQ lOOK Ii
±20% ±1O% ±20%
25 turn 1/2W
Sl
13260
Switch, Pushbutton
S2
11160
Switch, Slide, 115-230Y
S3
10059
Switch, Slide, DPDT
PI
10366
Connector, Snap-On Plug (Part of 13289)
-
WI
13289
Cable Assembly
AICl AIC2 AIC3
AIC4
AIC5 AIC6 AIC7 AIC8
10000-11 10000-11 10000-11
10000-11
10000-11 10000-11 10000-11 10000-11
CALIBRATOR AND METER DRIYE CIRCUIT PC BOARD ASSEMBL Y 1113064
Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic
Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic
.01 lJ F .01lJ F .01lJ F .01 lJ F .01lJ F .01 lJ F .01 lJ F .01 lJ F
±20% ±20% ±20% ±20% ±20% ±20% ±20% ±20%
100Y lOOY 100Y 100Y 100Y 100Y lOOY 100Y
8-2
From the library of WØMTU
Model 1034A
CIRCUIT REFERENCE PART NO.
DESCRIPTION
AIC9 AICI0
A lC 11 AIC12 AIC13 AIC14 AIC15 A1C16
AIC17 AIC18
AIC19 AIC20 AIC21 AIC22 AIC23 AIC24 AIC25
10001-6 10000-11
10000-11 10585-5 10585-5 10677-13 10677-2 10001-7
10677-5 10677-19
10677-9 10677-19 10677-5 10677-19 10000-11 10000-11 11501-2
Capacitor, Ceramic Capacitor, Ceramic
Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic Capacitor, Mica
Capacitor, Mica Capacitor, Ceramic
Capacitor, Mica Capacitor, Mica
Capacitor, Mica Capacitor, Mica Capacitor, Mica Capacitor, Mica Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic
47pF .01 llF
.01 llF .001 llF .00111F 470pF
220pF 100pF
47pF 24pF 120pF 24pF 47pF 24pF .0111 F .0111 F 0.111 F
±5% ±20% ±20% ±5% ±5% ±5% ±5%
±5% ±5% ±5% ±5% ±5% ±5% ±5% ±20% ±20% ±20%
1000Y
100Y 100Y 1000Y 1000Y 500Y 500Y
1000Y 500Y
500Y 500Y 500Y 500Y 500Y 100Y 100Y 50Y
AICRI
A1CR2 AICR3 AICR4 AICR5
10043-2
10043-2 10043-2 11345
Diode
Not Used Diode Diode Diode
1N4148
IN4148 1N4148 HP2900
.
AIJ 1
13271
Connector, 5MB
AILl
All2 All3
14314
10631-11 10631-11
RF Coil
RF Coil RF Coil
AIQl
10018
Transistor
.3311H .33 11 H
±10% ±10%
2N3646
AIRI AIR2 AIR3 AIR4
AIR5 AIR6 AIR7 AIR8 AIR9 Al RIO Al R 11
10013-13 12449-49 12449-48 11485-13
11485-14 10015-81 10013-13 12449-15 10046-4 10015-191 10015-81
Resistor, Carbon Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film
Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Film Resistor, Metal Film Resistor, Yar iable Co mp Resistor, Metal Film Resistor, Metal Film
100 Sl
22.90K Sl 15.00K Sl 63.00K Sl 126.0K Sl 11.3KSl
100 Sl
75.00K Sl 5K Sl 66.5K Sl 11.3KSl
±5% ±0.1 % ±0.1% ±0.1 % ±0.1% ±1 % ±5% ±0.1 % ±20%
±1 % ±1%
1/4W 1/4W 1/4W 1/4W 1/4W 1/8W l/4W
1/4W l/4W 1/8W 1/8W
8-3
From the library of WØMTU
Model 1034A
CIRCUIT REFERENCE PART NO.
DESCRIPTION
AIR12
10046-7
Resistor, Variable Comp
lK n
±20% 1/4W
AIR13
10015-206
Resistor, Metal Film
7.50Kn ±1 % l/8W
AIR14
10015-63
Resistor, Metal Film
402Kn
±1% 1/8W
AIR15
10015-141
Resistor, Metal Film
316Kn
±1 % l/8W
AIR16
10015-62
Resistor, Metal Film
200Kn
±1% l/8W
AIR17
10015-62
Resistor, Metal Film
200Kn
±1 % 1/8W
AIR18
10013-59
Resistor, Carbon Film
680Kn
±5% 1/4W
AIR19
10046-12
Resistor, Variable Comp
500Kn
±20% 1/4W
AIR20
10015-219
Resistor, Metal Film
261Kn
±1% l/8W
AIR21
10013-65
Resistor, Carbon Film
2.2Mn
±5% l/4W
AIR22
10046-10
Resistor, Variable Comp
100Kn
±20% 1/4W
AIR23
10015-24
Resistor, Metal Film
46.4Kn ±1% 1/8W
AIR24 AIR25 AIR26
10013-13 10013-37 10013-13
Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film
lOon 10Kn lOOn
±5% 1/4W ±5% 1/4W ±5% 1/4W
AIR27
10142-8
Resistor, Carbon Comp
47n
±5% l/4W
AIR28
10013-21
Resistor, Carbon Film
470n
±5% 1/4W
AIR29
10013-21
Resistor, Carbon Film
470 n
±5% l/4W
AIR30
10013-25
Resistor, Carbon Film
lKn
±5% l/4W
AIR31
10015-120
Resistor, Metal Film
69.8K n ±1 % 1/8W
AIR32
10015-3
Resistor, Metal Film
49.9 n
±1% 1/8W
AIR33
10015-197
Resistor, Metal Film
22W
±1 % l/8W
AIR34
10015-231
Resistor, Metal Film
23.7 n
±1% l/8W
AIR35
10015-197
Resistor, Metal F il m
221 n
±1% l/8W
AIR36
10046-11
Resistor, Variable Comp
250K n ±20% 1/4W
AIR37
10013-52
Resistor, Carbon Film
180Kn
±5% 1/4W
AlSl
13217
Switch, Pushbutton
-
AIUl AIU2
11539 11539
Integrated Circuit Integrated Circuit
741C 741C
A2Cl A2C2
A2C3 A2C4 A2C5 A2C6 A2C7 A2C8
10000-11 10007-7 10001-6 10001-6 10001-16 10000-5 10787-8 11173-1
INPUT AMPLIFIER PC BOARD ASSEMBL Y 1112930
Capacitor, Ceramic Capacitor, Mylar Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic Capacitor, Ceramic Capacitor, Tantalum Capacitor, Tantalum
.01)1 F 0.1)1 F 47pF 47pF 120pF .0022u F .47)1 F 330)1F
±20% ±10% ±5% ±5% ±5% ±20% ±20%
±20%
100Y 200Y 1000Y 1000Y 1000Y 1000Y 15Y
6Y
8-4
From the library of WØMTU
CIRCUIT REFERENCE PART NO.
Model 1034A DESCRIPTION
A2C9
10787-9
Capacitor, Tantalum
47wF
±20% 15V
A2CI0
10000-1
Capacitor, Ceramic
100pF
±20% 1000V
A2Cll
10787-5
Capacitor, Tantalum
LOw F
±20% 15V
A2C12
10787-8
Capacitor, Tantalum
.47w F
±20% 15V
A2C13
10787-3
Capacitor, Tantalum
27w F
±20% 15V
A2C14
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C15
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C16
10001-5
Capacitor, Ceramic
33pF
±5% 1000V
A2C17
10787-8
Capacitor, Tantalum
.47wF
±20% 15V
A2C18
10000-1
Capacitor, Ceramic
100pF
±20% 1000V
A2C19
Not Used
A2C20
Not Used
A2C21
10000-4
Capacitor, Ceramic
.001wF ±20% 1000V
A2C22
Not Used
A2C23
11501-2
Capacitor, Ceramic
0.1 wF
±10% 50V
A2C24
11501-2
Capacitor, Ceramic
0.1 wF
±10% 50V
A2C25
10007-7
Capacitor, Mylar
0.1 wF
±10% 200V
A2C26
10007-5
Capacitor, Mylar
.022wF ±10% 200V
A2C27
10000-4
Capacitor, Ceramic
.001 wF ±20% 1000V
A2C28
10787-1
Capacitor, Tantalum
4.7wF
±20% 15V
A2C29
10001-12
Capacitor, Ceramic
3.3pF
±5% 1000V
A2C30
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C31
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C32
10787-5
Capacitor, Tantalum
1.0wF
±20% 15V
A2C33
10787-8
Capacitor, Tantalum
.47 wF
±20% 15V
A2C34
10007-8
Capacitor, Mylar
.22wF
±10% 200V
--
A2C35 A2C36
10787-2 10001-5
Capacitor, Tantalum Capacitor, Ceramic
12 wF 33pF
±20% 15V ±5% 1000V
A2C37
10000-8
Capacitor, Ceramic
.022wF ±20% 500V
A2C38
10000-4
Capacitor, Ceramic
.001 wF ±20% 1000V
A2C39
10000-4
Capacitor, Ceramic
.001wF ±20% 500V
A2C40
10001-5
Capacitor, Ceramic
33pF
±5% 1000V
A2C41
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C42
10000-11
Capacitor, Ceramic
.01wF
±20% 100V
A2C43
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C44
10000-11
Capacitor, Ceram ic
.01 wF
±20% 100V
A2C45
10000-11
Capacitor, Ceramic
.01 wF
±20% 100V
A2C46
10003-6
Capacitor, Electrolytic
220 wF
+50% -10% 35V
A2C47
10003-6
Capacitor, Electrolytic
220 wF
+50% -10% 35V
A2C48
Not Used
A2C49
Not Used
A2C50
Not Used
A2C51
Not Used
A2C52
10787-2
Capacnvr, Tantalum
12w F
±20% 15V
A2C53
10787-2
Capacitor, Tantalum
12w F
±20% 15V
A2C54
10000-14
Capacitor, Ceramic
.047 wF ±20% 50V
A2C55
10000-8
Capacitor, Ceramic
.02wF
±20% 100V
A2C56
10000-8
Capacitor, Ceramic
.02w F
±20% 100V
8-5
From the library of WØMTU
CIRCUIT REFERENCE PART NO.
Model 1034A DESCRIPTION
A2C57
10000-14
Capacitor, Ceramic
A2CRI A2CR2 A2CR3
A2CR4 A2CR5 A2CR6 A2CR7 A2CR8 A2CR9 A2CRI0 A2CRll A2CR12 A2CR13 A2CR14
A2CR15
10043-2 10043-2 10043-2 10043-2 10043-2 10043-2 10043-2
11715 11715 11715 11715 10043-2 10043-2
Diode Diode Diode
Diode Diode Diode Diode Not Used Not Used Diode Diode Diode Diode Diode
Diode
A2J1 A2J2
A2J3 A2J4
A2J5 A2J6 A2J7 A2J8 A2J9
14320-2
14320-2
14320-2 14320-2 14320-2 14320-2 14320-2 13267-1 14320-2
Test Jack, Stamped
Test Jack, Stamped
I
Test Jack, Stamped Test Jack, Stamped Test Jack, Stamped Test Jack, Stamped Test Jack, Stamped Connector, 15 contact Test Jack, Stamped
A2Q1 A2Q2
A2Q3 A2Q4 A2Q5 A2Q6 A2Q7 A2Q8 A2Q9 A2Q10
A2Q11 A2Q12
A2Q13 A2Q14 A2Q15 A2Q16 A2Q17
10896 10896
10019 11507 11507 12591 11507 10019 11119 12591 12591 14203 11432 12591 12591 10019
Transistor Transistor
Not Used Transistor Transistor Transistor Transistor Transistor Transistor Transistor
Transistor Transistor
Transistor Transistor Transistor Transistor Transistor
8-6
.047 \IF ±20% 50V
1N4148 IN4148 1N4148 IN4148 IN4148 1N4148 IN4148
1N4466 IN4466 IN4466 1N4466 1N4148 1N4148
3N138 3N138
2N3565 TI597 TI597 El12 TI597 2N3565 2N4250 El12 El12 E174 2N3955 E112 El12 2N3565
From the library of WØMTU
Model 1034A
CIRCUIT REFERENCE PART NO.
DESCRIPTION
A2Q18 A2Q19
13249-1
Transistor Not Used
2N3808
A2Rl
10013-61
Resistor, Carbon Film
A2R2
10013-53
Resistor, Carbon Fil m
A2R3
10013-53
Resistor, Carbon Film
A2R4
10013-41
Resistor, Carbon Film
A2R5
10015-117
Resistor, Metal Film
A2R6
10013-49
Resistor, Carbon Film
A2R7
10013-37
Resistor, Carbon Film
A2R8
10013-49
Resistor, Carbon Film
A2R9
10013-49
Resistor, Carbon Film
A2RI0
12449-47
Resistor, Metal Film
A2Rll
10013-49
Resistor, Carbon Film
A2R12
10013-51
Resistor, Carbon Film
A2R13
10013-45
Resistor, Carbon Film
A2R14
10013-37
Resistor, Carbon Film
A2R15
10013-37
Resistor, Carbon Film
A2R16
10013-49
Resistor, Carbon Film
A2R17
10013-45
Resistor, Carbon Film
A2R18
10013-49
Resistor, Carbon Film
A2R19
10013-37
Resistor, Carbon Film
A2R20
10015-138
Resistor, Metal Film
A2R21
10013-61
Resistor, Carbon Film
A2R22
10015-45
Resistor, Metal Film
A2R23
12449-26
Resistor, Metal Film
A2R24
10013-61
Resistor, Carbon Film
A2R25
10015-45
Resistor, Metal Film
A2R26
Not Used
A2R27
12449-63
Resistor, Metal Film
A2R28
10013-47
Resistor, Carbon Film
.
A2R29 A2R30
10013-47 10013-33
Resistor, Carbon Film Resistor, Carbon Film
A2R31
10013-52
Resistor, Carbon Film
A2R32
10013-13
Resistor, Carbon Film
A2R33
10013-25
Resistor, Carbon Film
A2R34
10013-13
Resistor, Carbon Film
A2R35
10013-69
Resistor, Carbon Film
A2R36
10013-1
Resistor, Carbon Film
A2R37
10013-7
Resistor, Carbon Film
A2R38
10015-14
Resistor, Metal Film
A2R39
10015-133
Resistor, Metal Film
A2R40
10013-69
Resistor, Carbon Film
A2R41
10013-41
Resistor, Carbon Film
A2R42
10013-53
Resistor, Carbon Film
A2R43
10015-13
Resistor, Metal Film
8-7
1M \2 220K\2 220K\2 22K \2 54.9K \2 lOOK \2 10K \2 100K\2 100K\2 505.0 \2 lOOK \2 150K \2 47K \2 10K \2 10K \2 lOOK \2 47K \2 lOOK \2 10K \2 115\2 1M \2 499K\2 5.00K \2 1M \2 499K:.l
47.07K\2 68K :.l 68K:.l 4.7K :.l 180K:.l 100 :.l lKQ 100 \l 4.7 M \l 10 Q 33 Q 31.6K :.l 49.9K n 4.7M :.l 22K Q 220K It lOOK :.l
±5% ±5% ±5% ±5% ±1% ±5% ±5% ±5% ±5% ±0.1 % ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±l% ±5% ±1% ±0.1 % ±5% ±1%
±0.1 % ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±1% ±1% ±5% ±5% ±5% ±1%
l/4W 1/4W l/4W l/4W 1/8W l/4W 1/4W 1/4W 1/4W 1/4W l/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/8W 1/4W 1/8W 1/4W 1/4W 1/8W
1/4W 1/4W 1/4W l/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/8W 1/8W 1/4W 1/4W 1/4W 1/8W
From the library of WØMTU
Mode! l034A
CIRCUIT REFERENCE PART NO.
DESCRIPTION
A2R44 A2R45 A2R46 A2R47 A2R48 A2R49 A2R50 A2R51 A2R52 A2R53 A2R54
A2R55 A2R56 A2R57 A2R58 A2R59 A2R60 A2R61 A2R62 A2R63 A2R64 A2R65 A2R66 A2R67 A2R68 A2R69 A2R70 A2R71 A2R72 A2R73 A2R74 A2R75 A2R76
A2R77 A2R78 A2R79 A2R80 A2R81 A2R82
A2R83 A2R84 A2R85 A2R86 A2R87 A2R88 A2R89 A2R90 A2R91
10013-37 10015-191 10015-33 10015-13 10046-8 10015-62 10013-7 10015-62 10015-78 10142-8 10142-8 10013-59
11711-2 10015-141 10015-141 10015-78 10013-73 10013-1 10015-24 10013-37 10013-41 10013-29 10013-41 10013-5 10013-61 10046-11 10013-61 10013-25 10013-61 10142-8 10142-8 10013-53 10013-53 10015-31 10015-7 10015-19 10046-4
10046-4 10015-95 10015-141 10015-109 10015-109 10046-3 10015-133 10015-118 10142-8
Resistor, Carbon Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Variable Resistor, Metal Film Resistor, Carbon Film Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Comp Resistor, Carbon Comp Resistor, Carbon Film Not Used Resistor, Variable Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Metal Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Variable Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Comp Resistor, Carbon Comp Resistor, Carbon Film Resistor, Carbon Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Variable Not Used Resistor, Var iable Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Variable Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Comp
8-8
10KI"l 66.5KI"l 82.5K I"l lOOK I"l 10K I"l 200K I"l 33 I"l 200KI"l 2.26KI"l 47 I"l 47 I"l 680K I"l
±5% ±l% ±l% ±l% ±20% ±l% ±5% ±l% ±l% ±5% ±5% ±5%
1/4W 1/8W 1/8W 1/8W 1/4W 1/8W 1/4W 1/8W 1/8W 1/4W 1/4W l/4W
100KI"l
±20% 1/2W
316KI"l
±l%
l/8W
316KI"l
±1%
1/8W
2.26KI"l
±1%
1/8W
lOMI"l
±5%
l/4W
101"l
±5%
1/4W
46.4K I"l
±1%
1/8W
10KI"l
±5%
1/4W
22KI"l
±5%
1/4W
2.2K I"l
±5%
1/4W
22K I"l
±5%
1/4W
22 I"l
±5%
l/4W
IMI"l
±5%
1/4W
250KI"l
±20% l/4W
1M I"l
±5%
1/4W
lK I"l
±5%
l/4W
1M I"l
±5%
l/4W
47 I"l
±5%
l/4W
47 I"l
±5%
1/4W
...
220KQ
±5%
1/4W
220KI"l
±5%
l/4W
3.16KI"l
±1%
1/8W
lOKI"l
±1%
1/8W
lK I"l
±1%
l/8W
5K I"l
±20% l/4W
5K I"l 29.4K I"l 316K I"l 348KI"l 348KI"l 50KI"l 49.9K I"l 28.7KI"l 471"l
±20% ±1% ±1% ±1% ±1% ±20% ±1% ±1% ±5%
l/4W 1/8W 1/8W l/8W 1/8W 1/4W 1/8W
1/8W
1/4W
From the library of WØMTU
Model 1034A
CIRCUIT
REFERENCE
PART NO.
A2R92 A2R93 A2R94 A2R95
A2R96 A2R97 A2R98 A2R99 A2RI00 A2R 10 1 A2RI02
A2RI03
A2RI04 A2RI05 A2RI06 A2RI07 A2RI08 A2RI09 A2R 110 A2Rlll A2Rl12 A2Rl13 A2Rl14
A2R 115 A2Rl16 A2R1l7 A2R 118 A2Rl19 A2R120 A2R121 A2R122 A2R123 A2R124
10142-8 10013-37 10015-74 10015-188 10015-109 10015-74 10015-188 10015-172 10015-74 10015-96 10046-7 10015-105 10015-191 10015-120 10015-191 10013-61 10013-13 10013-13 10015-191 10015-14 10013-1
10013-1 10015-45 10015-45 10013-13 10013-35
A2RTl
A2Ul A2U2 A2U3 A2U4 A2U5 A2U6 A2U7 A2U8 A2U9
13266
11627 13253-2 13253-1 12445
11118-1
12445 11627 11627 11627
DESCRIPTION
Resistor, Carbon Comp Resistor, Carbon Film Resistor, Metal Film Resistor, Metal Film
Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Variable
Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Film Not Used· Not Used Not Used Not Used Not Used Not Used Not Used
Resistor, Laroon Film Resistor, Metal Film Resistor, Metal Film Resistor, Carbon Film Resistor, Carbon Film
47n 10Kn 2.00Kn 33.2K n
348Kn 2.00K n 33.2Kn 1.18K n 2.00Kn 12.1Kn lKn 6.19K n 66.5K n 69.8K n 66.5K n IMn lOOn 100 n 66.5Kn 31.6K n 100
±5% ±5% ±1% ±1% ±1% ±1% ±1% ±l% ±1% ±1% ±20% ±1% :d% ±l% ±1% ±5% ±5% ±5% ±l% ±1%
±5%
1/4W
1/4W l/8W 1/8W 1/8W 1/8W l/8W 1/8W l/8W 1/8W l/4W 1/8W 1/8W l/8W l/8W 1/4W
1/4W 1/4W l/8W 1/8W
1/4W
lOn
499K n
499K n
100 r2
6.8K n
±5% ±l% ±1% ±5% ±5%
1/4W 1/8W 1/8W /14W 1/4W
Thermistor
Integrated Circuit Integrated Circuit Integrated Circuit Integrated Circuit Integrated Circuit Integrated Circuit Integrated Circuit Integrated Circuit Integrated Circuit
8-9
2K n
±10%
LM301A CD406AE CD4001AE 725C CA3039 725C LM301A LM301A
LM301A
From the library of WØMTU
Modell034A
CIRCUIT REFERENCE PART NO.
A2UI0 A2Ull
. A2U 12
A2U13
11539
11539
A3Cl A3C2 A3C3 A3C4 A3C5 A3C6 A3C7
A3CRl A3CR2 A3CR3
A3Fl
A3Jl
A3Ql A3Q2 A3Q3 A3Q4
A3Q5
A3Q6
A3Rl A3R2 A3R3 A3R4 A3R5 A3R6 A3R7 A3R8 A3R9 A3RI0 A3Rll
10787-3 10787-3
10000-4
10000-4 10000-4
10044-1 10044-1 10044-1
10064-3
14320-2
14622 10017
10019
10017
10017
10019
10013-37
10015-36 10046-7 10015-36
10241-5 10013-17 10013-39 10013-13 10013-13 10013-39
DESCRIPTION
Integrated Circuit
Integrated Circuit Not Used Not Used
741C 741C
BA TTER Y POWER PC BOARD ASSEMBLY It 13206
Capacitor, Tantalum
Capacitor, Tantalum Not Used
Capacitor, Ceramic Not Used
Capacitor, Ceramic Capacitor, Ceramic
271J F
±20% 25V
271J F .001 1JF
±20% ±20%
25V 1000V
-
.001\-1 F .001\-1 F
±20% ±20%
1000V 1000V
Diode Diode Diode
IN4383 IN4383 IN4383
Fuse, l.OA, 250V
Test Jack, Stamped
Transistor Transistor Transistor Transistor Transistor Transistor
2N6486
2N 3569
2N3565 2N3569 2N3569 2N3565
Resistor, Carbon Film Not Used Resistor, Metal Film Resistor, Variable Comp Resistor, Metal Film Resistor, Carbon Comp Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film Resistor, Carbon Film
Resistor, Carbon Film
10K Si
5.11KQ lKQ
5.11KQ
1.0 Q
no Si
15K Q
100 Si
100 ~ 15Kn
±5%
±1%
±20%
±1%
±5% ±5% ±5% ±5% ±5% ±5%
1/4W
1/8W
1/4W
1/8W
1/2W 1/4W 1/4W 1/4W l/4W l/4W
8-10
From the library of WØMTU
CIRCUIT REFERENCE PART NO.
A3R12 A3R13 A3R14
A3RTl A3Tl A3T2
10015-72 10015-221 10015-104
13266
13262 13275
A3Ul
13893
Bl
13261
Model 1034A
DESCRIPTION
Resistor, Metal Film Resistor, ~leta1 Film Resistor, Metal Film
Thermister, Disc
Transformer, Power Transformer
1.96 Krl 4.22Krl 5.62Krl
2Krl
Integrated Circuit
uA723C
±1%
1/8W
±1%
1/8W
±1%
1/8W
Battery
:
8-11
From the library of WØMTU
.... ... - _---~-
J
Model 1034A
PART NUMBER CROSS REFERENCE
MFGR. PART NO. CODE
MFGR. PART NO.
10000-1 10000-3 10000-4 10000-5 10000-8
10000-9 10000-11 10001-5 10001-6 10001-7 10001-8 10001-12 10001-13 10001-15 10001-16 10001-17
56289 56289
56289 56289 56289 56289 72982 56289 56289 56289 56289 56289
56289 56289 56289 56289
10003-6 10007-5
10007-7 10007-8
25088 Ot002 01002 01002
10013-1 10013-5 10013-7
10013-9 10013-13 10013-21 10013-23
10013-25 10013-29 10013-31 10013-33
80031 80031 80031
80031 80031 80031 80031
80031 80031 80031 80031
10013-37 10013-41 10013-45
10013-4-7
10013-49 10013-51 10013-52 10013-53 10013-59 10013-61 10013-65 10013-69 10013-73
80031 80031 80031
80031
80031 80031 80031 80031 80031 80031 80031 80031 01121
5GA-TlO 5GA-T47 5GA-D 10 5GA-D22 5GAS-S20 5GA-550 805-000-X5VO-I032 10TCC-Q33 10TCC-Q47 10TCC-TlO 10TCC-Q15 10TCC-V33 10TCC-Q12 lOTCC-Tl5 10TCC-Tl2 10TCC-Q82
B41010-220/40/8212 75F lR2A223 75F3R2AI04 75F6R2A224
B803 104NB 100 B803 104NB 220 B803 104NB 330 B803 104NB 470 B803 104NB 101 B803 104NB 471 B803 104NB 681 B803 104NB 102 B803 104NB 222 B803 104NB 332 B803 104NB 472
3803 104NB 103 B803 104NB 223 B803 104NB 473 B803 104NB 683 B803 104NB 104 B803 104NB 154 B803 104NB 184 B803 104NB 224 B803 104NB 684 B803 104NB 105 B803 104NB 225 B803 104NB 475 CB1065
PART NUMBER CROSS REFERENCE
MFGR. PART NO. CODE
MFGR. PART NO.
10015-3 10015-7
10015-13 10015-14 10015-19
24546 24546
24546 24546 24546
10015-24
10015-31 10015-33 10015-36 10015-40 10015-43 10015-45
10015-62 10015-63 10015-74
24546
24546 24546 24546 24546 24546 24546
24546 24546 24546
10015-78 10015-81 10015-85 10015-91 10015-95 10015-96 10015-98
10015-105 10015-106
10015-109
24546 24546
24546 24546 24546 24546 24546 24546 24546
24546
10015-115 10015-117 10015-118 10015-120 10015-133
24546 24546 24546 24546 24546
10015-138 10015-141 10015-172 10015-178 10015-188 10015-191 10015-197 10015-206 10015-213 10015-214 10015-231
24546 24546
24546 24546 24546 24546 24546 24546 24546 24546 24546
RN55D 49.9Q 1% RN55D 1O.0K Q 1% RN55D 100KQ 1% RN55D 31.6K st 1% RN55D lKQ 1%
RN55D 46.4KQ 1% RN55D 3.16K Q 1% RN55D 82.5K Q 1% RN55D 5.11KQ 1% RN55D 43.2KQ 1% RN55D 121 Q 1% RN55D 499KQ 1% RN55D 200KQ 1% RN55D 402K Q 1% RN55D 2KQ 1%
RN55D 2.26K Q 1% RN55D 11.3K Q 1% RN55D 287K Q 1% RN55D 90.9K Q 1% RN55D 29.4K Q 1% RN55D 12.1 K Q 1%
RN55D 13.3K n 1%
RN55D 6.19KQ 1% RN55D 6.81Kr2 1% RN55D 348K Q 1%
RN55D 57.6K it 1% RN55D 45.9KQ 1% RN55D 28.7K ~ 1%
RN55D 69.8K n 1%
RN55D 49.9K Q 1%
RN55D 115 Q 1% RN55D 316:l2 1% RN55D 1.18K It 1% RN55D 17.4KQ 1% RN55D 33.2K Q 1% RN55D 66.5K Q 1% RN55D 221 Q 1% RN55D 7.5KJ 1% RN55D 178KQ 1% RN55D 374K00 1% RN55D 23.7 Q 1%
8-12
From the library of WØMTU
Model 1034-A
PART NUMBER CROSS REFERENCE
MFGR. PART NO. CODE
MFGR. PART NO.
PART NUMBER CROSS REFERENCE
MFGR. PART NO. CODE
MFGR. PART NO.
10018 10019 1004-3-2
07263 07263 09214
2N364-6 2N2565 IN4-14-8
11501-2 11507 11539
72982 01295 07263
8131-050-651-104-M TIS97 74-1HC
1004-6-3 1004-6-4
714-50 714-50
X20l R503B X20IR502B
11627 11676-1
07263 01121
LM301AH WAIG012SI04-MZ
1004-6-7
714-50
X20IRI02B
11688-1
714-50
185PC-I04-B-HDRWKTl85
1004-6-8
714-50 X20IRI03B
11689
24-931
28JRI06-6
1004-6-10 714-50 X20IRI04-B
1004-6-11 714-50 X20IR254-B
11711-2
73138
66WR Series, lOOK
1004-6-12 714-50 X20 1R504-B
11711-4
73138
66 WR Series, lK
11711-5
73138
66WR Series, 250K
10059
79727 GF126
10064--7
75915
312-250
.
11715 12233-2
07263 28821
IN4-4-6 12233-2
1014-0-1
74-970 105-0852-001
12355
82389 EAC-30 1
1014-0-2
74-970
105-0857-001
12389
7654-1
MV5025
1014-0-3
74-970
105-0853-001
124-4-5
07263 725C
1014-0-4
7lJ.970
105-0860-001
10366
15558
1102-118
124-4-9-15 14-298 EE 1/8 C2 75.00K 0.1 %
124-4-9-26 14-298 EE 1/8 C2 5.00K 0.1 %
10399
07263 2N4-360
124-4-9-4-7 14-298 EE 1/8 C2 505 0.1%
10585-5
56289
C028A 102J 102J
124-4-9-4-8 91637 MFF 1/8 T2 15.00K 0.1%
10631-11 99800
1025-08
124-4-9-4-9 91637 MFF 1/8 T2 22.9K 0.1%
124-4-9-50 14298 EE 1/8 C24-5.41K 0.1%
10677-2
84-171
DM15F22IJ500V
10677-5
84-171
OM15F4-70J500V
10677-9
84-171
OM 15F 121J500V
12591
17856 El12
10677 -13 84-171
OM15F4-71J500V
12722
28821
12722
10677-19 84-171
OM15F24-0J500V
13217
28821
13217
13226
28821
13226
10787-1
56289
19604-75X0035JA 1
1324-2-1
31223 MPO 100-10-0S-1
10787-2
56289
1960126X9020JAl
10787-3
56289
1960276X9025LA3
1324-9-1
07263 2N3808
10787-5
56289
1960105X0035HAl
13250
04-713 MCl4-63G
10787-8
56289
1960474-X0035HAl
13251
04713
MCl4-69G
10787-9
56289
19604-76X0020LA3
13253-1
02735 CD4-001 AE
10821
02660 82-97
13253-2
02735
C04-060 AE
10896
02735 3N138
11118-1
02735 CA93039
13260
28821
13260
11119
07263 2N4-250
13262
28821
13262
11160
22753 SW-422-GK 115/230
13266
83186 3204
11173-1
56289
1960337XOO06TE4
13267-1
31223
MPO 100-15-0S-4
114-32
27014
2N3955
13271
16733 700209
13289
28821
13289
114-85-13 14-298 REA C-2 63.0K 0.1 %
13358
82389 2504-FP
114-85-14 14298 REA C-2 126K 0.1%
14314
28821
14314
8-13
From the library of WØMTU
Model 1034A
FEDERAL SUPPLY CODES FOR MANUFACTURERS
The following five-digit code numbers are listed
in nu mer ical sequence along wi th the name and location of the manufacturer to which the code
has been assigned. The Federal Supply Code has been taken from Cataloging Handbook H 4-1,
Name to Code.
00303 00656 00779 01002
01121 01295
01961 02114 02660 02735
Shelly Associates EI Segundo, California
Aerovox Corp. New Bedford, Massachusetts
AMP Inc. Harrisburg, Pennsylvania
General Electric Co. Capacitor Dep't. Hudson Falls, New York
Allen-Bradley Co. Milwaukee, Wisconsin
Texas Instruments, Inc. Semic~nductor Components Div. Dallas, Texas
Pulse Engineering, Inc. Santa Clara, California
Ferroxcube Corp. of America Saugerties, New York
Amphenol-Borg Electric Corp. Broadview, Illinois
Radio Corp. of America Semiconductor &. Materials Div. Somerville, New Jersey
07263
Fairchild Camera &. Inst. Corp. Semiconductor Div. Mountain View, California
07910
Continental Device Corp. Hawthorne, California
09214
General Electric Co. Semiconductor Products Dep't.
Auburn, New York
09353
C and K Components, Inc. Newton, Massachusetts
11332
General Microwave Corp. Farmingdale, New York
11711
General Instruments, Inc. Semiconductor Div. Newark, New Jersey
12674 Syncro Corp.
Hicksville, Ohio
12954
Dickson electronics Corp. Scottsdale, Arizona
-
14298
American Components, Inc. Conshohocken, Pennsylvania
15558
Micon Electronics, Inc. Garden City, New York
04062
Elmenco Products Co. New York, New York
16733
Cablewave Systems North Haven, Connecticut
04713
05035 05245 07126
Motorola, Inc. Semiconductor Products Div. Pheonix, Arizona
Ayer Manufacturing Co. Chicago Heights, Illinois
Corcom, Inc. Chicago, Illinois
Digitran Co. Pasadena, Cali fornia
17540 17856 18235 18324
Alpha Industries Woburn, Massachusetts
Siliconix, Inc. Santa Clara, California
KRL Electronics, Inc. Manchester, New Hampshire
Signetics Corp. Sunnyvale, California
8-14
From the library of WØMTU
Model 1034A
19447 21847 22045 22526 24546
24931 25085 27014 27556 28480 28821 31918 32284 33025 34078 44655 50625 56289
Electro-Technique, Inc. Oceanside, California
Aertech Industries Sunnyvale, California
Jordan Electric Co. Van Nuys, California
Berg Electronics Corp. New Cumberland, Pennsylvania
Corning Glass Works Electronic Components Div. Raleigh, North Carolina
Specialty Connector Co., Inc. Indianapolis, Indiana
Siemens America Corp. Iselin, New Jersey
National Semiconductor Corp. Santa Clara, California
1MB Electronic Products Santa Fe Springs, California
Hewlett-Packard Co. Palo Alto, California
Wavetek Microwave, Inc. Sunnyvale, California
International Electro Exchange Eden Prairie, Minnesota
Rotron Manufacturing Co., Inc. Woodstock, New York
Omni Spectra Tempe, Arizona
Midwest Microwave, Inc. Ann Arbor, Michigan
Ohmite ".Aanufacturing Co. Skokie, Illinois
Revere Corp. of America Wallingford, Connecticut
Sprague Electric Co. North Adams, Massachusetts
70903 71034 71400
71450 71590 72982 73138
73445 74970 75915 76493 76541 76854 79727 80031
80294
81073
Belden Manufacturing Co. Chicago, Illinois
Bliley Electric Co. Erie, Pennsylvania
Bussman Manufacturing Div. of McGraw-Edison Co. St. Louis, Missouri
CTS Corp. Elkhart, Indiana
Centralab Electronics Milwaukee, Wisconsin
Erie Technical Products, Inc. Erie, Pennsylvania
Beckman Instruments, Inc. Helipot Division Fullerton, California
Amperex Electronic Corp. Hicksville, New York
E. F. Johnson Co. Waseca, Minnesota
Littlefuse, Inc. Des Plaines, Illinois
J. W. Miller Co. Compton, California
Monsanto Commercial Products Co. Cupertino, California
Oak Manufacturing Co. Crystal Lake, Illinois
Continental-Wirt Electronics Co. Philadelphia, Pennsylvania
Mepco/Electra, Inc. A North American Phillips Co. Morristown, New Jersey
Bourns, Inc. Trimpot Division Riverside, California
Grayhill, Inc. La Grange, Illinois
8-15
From the library of WØMTU
Model 1034A
81095 81483 82389 83330 83594
83701 84171 90303 90634 91418 91637 91929
94144
94222 95146 99392 99800
Traid Transformer Co. Venice, California
International Rectifier Corp. El Segundo, California
Switchcraft, Inc. Chicago, Illinois
H. H. Smith, Inc. Brooklyn, New York
Burroughs Corp. Electronic Components Division Plainfield, New Jersey
Electronic Devices, Inc. Yonkers, New York
Arco Electronics, Inc. Great Neck, New York
Mallory Battery Co. Tarrytown, New York
Saft Amer ica, Inc. Metuchen, New Jersey
Radio Materials Co. Chicago, Illinois
Dale Electronics, Inc. Columbus, Nebraska
Honeywell, Inc. Microswitch Division Freeport, Illinois
Raytheon Co. Components Division Quincy, Massachusetts
Southco, Inc. Lester, Pennsylvania
Aleo Electronics Lawrence, Massachusetts
STM Corp. Oakland, California
Delavan Electronics Corp. East Aurora, New York
8-16
From the library of WØMTU
Model 1034A
SECTION 9
MANUAL CORRECTIONS
This section lists the corrections that must be incor porated in this manual to make it correspond to a par ticular instrument. The serial number of each instru ment is prefixed by a code number. This code number
is used to identify the applicable manual corrections
for a particular instrument-. When correcting this manual start with the corrections corresponding to the Code No. on the instrument. If a particular component has been changed more than one time, make only the
first change encountered.
CODE NO.
CORRECTIONS
.
PM PART NO.
SECTION OF MANUAL AFFECTED
13 None
From the library of WØMTU
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