HEATHKIT Manuals & User Guides

HEATHKIT SB-220 Linear Amplifier Instructions

June 4, 2026

HEATHKIT SB-220 Linear Amplifier Specifications Original Amplifier Model: Heath SB-220 Linear Amplifier Step-Start Circuit: Resistor in series with AC supply leads, shunted by relay after 2-3 second delay. Relay for…

HEATHKIT HD-15 Hybrid Phone Patch Installation Guide

March 6, 2026

HEATHKIT HD-15 Hybrid Phone Patch CIRCUIT DIAGRAM INTRODUCTION The Heathkit Model HD-15 Hybrid Phone Patch is used to transfer audio signals between telephone lines and two-way radio equipment. The Phone…

HEATHKIT HD-1515 Phone Patch Instruction Manual

March 6, 2026

HEATHKIT HD-1515 Phone Patch

Heathkit HR-1680 S-S Receiver User Manual

March 1, 2026

Heathkit HR-1680 S-S Receiver Specifications Model: HR-1680 S/S Receiver Release Date: November 11, 1976 Bulletin No: HR-1680-1 Product Usage Instructions No VFO Output Ensure the color dot on the L30…

HEATHKIT HX-1681 CW Transmitter User Manual

March 1, 2026

September 27, 1979 HX-1681                                  Bulletin No: CW Transmitter             …

HEATHKIT IM-17 Utility Solid State Voltmeter Instruction Manual

February 25, 2026

HEATHKIT  IM-17 Utility Solid State Voltmeter Description The IM‑17 is a utility voltmeter with multiple ranges for both DC and AC voltage, plus resistance measurement capability. It uses solid‑state circuitry…

Heathkit IM-17U Utility Solid State Voltmeter Instruction Manual

February 25, 2026

IM-17U Utility Solid State Voltmeter

Heathkit LG-1 Laboratory Type Signal Generator Instruction Manual

February 23, 2026

Heathkit LG-1 Laboratory Type Signal Generator Specifications Product Name: Laboratory Type Signal Generator Model: LG-1 Manufacturer: Heath Company Year: 1954 Price: $1.00 Product Usage Instructions Standard Color Code for Resistors…

HEATHKIT QF-1 Q Multiplier Installation Guide

February 22, 2026

HEATHKIT QF-1 Q Multiplier STANDARD COLOR CODE - RESISTORS AND CAPACITORS The standard color code provides all the necessary information required to properly identify color-coded resistors and capacitors. Refer to…

HEATHKIT HD-1515 Phone Patch Amateur Ham Radio Installation Guide

December 15, 2025

ILLUSTRATION BOOKLET PARTS PICTORIAL Copyright © 1985 Heath Company All Rights Reserved Printed in the United States of America Model HD-1515 The pins on the IC's may be bent out…

Heathkit HD-20 Crystal Calibrator Assembly and Operation Manual

manual

Comprehensive assembly and operation manual for the vintage Heathkit HD-20 Crystal Calibrator, including specifications, wiring diagrams, and troubleshooting instructions.

Restoring the Heathkit RF-1 Radio Frequency Generator: A Repair Guide

maintenance manual

A detailed guide on restoring a vintage Heathkit RF-1 signal generator, covering capacitor replacement, switch maintenance, and calibration techniques using radio receivers.

Heathkit GC-1005 Electronic Clock Assembly Manual

manual

Comprehensive assembly and operation manual for the Heathkit GC-1005 digital electronic clock. Includes detailed parts lists, step-by-step assembly instructions, troubleshooting charts, and schematics.

Heathkit SW-717 Shortwave Receiver Assembly Manual

manual

Comprehensive assembly and operation manual for the Heathkit Model SW-717 Shortwave Receiver. Includes detailed parts lists, step-by-step assembly instructions, alignment procedures, and troubleshooting guides.

Heathkit Technical Documentation and Manuals Index

catalog

A comprehensive index of Heathkit technical manuals, schematics, service bulletins, and product imagery for various amateur radio and electronic equipment.

Notes on Rebuilding and Modernizing the Heathkit SB-220 Linear Amplifier

technical guide

A technical guide on rebuilding, modernizing, and improving the stability and safety of the Heathkit SB-220 linear amplifier, including step-start circuits, parasitic suppression, and QSK board installation.

Calibration Procedure for the Heathkit Antenna Tuner SA-2060 and SA2060A

service manual

Comprehensive calibration procedure and technical specifications for the Heathkit SA-2060 and SA-2060A antenna tuners. Includes setup instructions, meter calibration steps, and a guide for modifying the sensor box for easier…

Heathkit SW-7800 General Coverage Receiver: Assembly and User Manual

Assembly and User Manual

Comprehensive assembly and user manual for the Heathkit SW-7800 General Coverage Receiver. Features include detailed instructions, specifications, troubleshooting, and operation guides for this synthesized shortwave radio.

Heathkit HA-201 2-Meter Amplifier Assembly Manual

Assembly Instructions

Assembly and operation manual for the Heathkit HA-201 2-Meter Amplifier, including parts list, step-by-step instructions, alignment procedures, troubleshooting, and specifications.

Heathkit ET/ETW-4200 Laser Trainer Parts Pictorial and Schematic

Parts List Diagram

Detailed illustration booklet, parts pictorial, and schematic diagram for the Heathkit ET/ETW-4200 Laser Trainer, including assembly instructions, component identification, and safety warnings.

Heathkit IO-21 General Purpose Oscilloscope Schematic and Technical Details

Technical Specification

Detailed technical specifications and circuit schematic for the Heathkit IO-21 General Purpose Oscilloscope, including component information and voltage readings.

Heathkit HX-1681 CW Transmitter Assembly Manual

Assembly Manual

This 1979 assembly manual guides users through building the Heathkit HX-1681 CW Transmitter, a 100-watt amateur radio device for HF bands. It includes detailed parts lists, step-by-step assembly instructions, and…