Heathkit Schematic and Manual Archive

Heathkit LogoThis is an archive based on a page that used to be at http://www.circuitarchive.co.uk/heath.htm. It has been reassembled from my copy (saved when the site was live) together with files retrieved from http://web.archive.org and other resources. Hundreds of other files have been kindly contributed over the years too.

Many of the files here are just schematic diagrams but some include additional information such as specifications, and a few are complete manuals. I am gradually converting as many as possible to PDF format and noting whether schematic only, complete manual etc, however this will take some time to complete.

528 files available. Files highlighted as "new" were added in the last 60 days. Click a row in the table below to download the file. You may download up to 5 different files in a 15 minute period.

If you have anything to add please email paul (at) vintage-radio (dot) info.

TitleDescriptionFile TypeSize
309-BR.F. Probe
Diagram and schematic
 pdf file icon108 KB
309-CR.F. Probe
Description, diagram and schematic
 pdf file icon385 KB
336High Voltage Probe
Assembly
 pdf file icon1.1 MB
337-BDemodulator Probe
Diagram and schematic
 pdf file icon113 KB
337-CDemodulator Probe
Description, diagram and schematic
 pdf file icon1.8 MB
338-BPeak-To-Peak Voltage Probe
Diagram and schematic
 pdf file icon127 KB
342Low Capacity Probe
Description, diagram and schematic
 pdf file icon1.9 MB
A-7B and A-7CAudio Amplifiers
Schematic and specifications
 pdf file icon748 KB
A-7EAudio Amplifier
Schematic only
 pdf file icon268 KB
A-9AAudio Amplifier
Schematic and specifications
 pdf file icon695 KB
A-9C20W Audio Amplifier-Preamplifier
Schematic only
 pdf file icon998 KB
AA-1Audio Analyser
Schematic only
 pdf file icon438 KB
AA-1314W Audio Amplifier
Schematic only
NEW!pdf file icon1.1 MB
AA-14Solid State Stereo Amplifier
Schematic only
 pdf file icon811 KB
AA-30Stereo Amplifier
Schematic only
NEW!pdf file icon216 KB
AA-32Stereo Amplifier
Schematic only
NEW!pdf file icon1.2 MB
AA-100Stereo Amplifier
Partial manual
NEW!pdf file icon8.5 MB
AA-12180W Stereo Amplifier
Schematic only
NEW!pdf file icon4.1 MB
AA-16114W Audio Amplifier
Schematic only
NEW!pdf file icon226 KB
AA-181Mono Amplifier
Complete manual
NEW!pdf file icon1.3 MB
AA-1600Power Amplifier
Schematic only
 pdf file icon38 KB
AA-1640Power Amplifier, Preamplifier and Output Meter
Schematic only
 pdf file icon208 KB
AC-1Antenna Coupler
Schematic and specifications
 pdf file icon417 KB
AD-110Hi-Fidelity Cassette Tape Deck
Schematic and tape transport parts pictorial
NEW!pdf file icon1.6 MB
AD-1305Audio Equalizer
Schematic only
 pdf file icon420 KB
AF-1Audio Frequency Meter
Schematic and specifications
 pdf file icon821 KB
AFM-1AM/FM Tuner
Schematic, parts list and AM audio response - poor quality
NEW!pdf file icon1.7 MB
AG-8Audio Generator
Schematic and specifications
 pdf file icon617 KB
AG-9AAudio Generator
Schematic only
 pdf file icon300 KB
AG-9UAudio Generator
Schematic only
 pdf file icon237 KB
AG-10Sine-Square Generator
Schematic only - poor quality
 pdf file icon321 KB
AJ-14Solid State FM Stereo Tuner
Schematic only
 pdf file icon1.7 MB
AJ-41Stereo Tuner
Partial manual
NEW!pdf file icon24.7 MB
AJ-63FM Tuner
Schematic only
NEW!pdf file icon1.0 MB
AJ-1600AM/FM Stereo Digital Tuner
Schematic and semiconductor identification charts
NEW!pdf file icon657 KB
AM-1Antenna Impedance Meter
Schematic and specifications
 pdf file icon300 KB
AM-2Reflected Power & Standing Wave Ratio Bridge
Schematic only
 pdf file icon86 KB
AN-10Mixed Lows Stereo Crossover
Schematic and circuit description
 pdf file icon316 KB
AO-1Audio Oscillator
Schematic and specifications
 pdf file icon900 KB
AR-2Communications Receiver
Schematic and specifications
 pdf file icon924 KB
AR-3Communications Receiver
Schematic only
 pdf file icon630 KB
AR-14FM Receiver
Partial manual
NEW!pdf file icon545 KB
AR-15AM/FM Stereo Solid State Receiver
Schematic only
NEW!pdf file icon857 KB
AR-27Solid State FM Receiver
Schematic only
 pdf file icon1.8 MB
AR-29AM/FM Stereo Receiver
Schematic only
NEW!pdf file icon532 KB
AS-2AAcoustic Suspension Speaker System
Complete manual
NEW!pdf file icon7.0 MB
AS-13633-Way Bookshelf Speaker System
Schematic and circuit description
NEW!pdf file icon458 KB
AT-1Amateur Transmitter
Schematic and specifications
 pdf file icon950 KB
AV-1VTVM
Schematic only - poor quality
 pdf file icon194 KB
AV-2AC Voltmeter
Partial manual - poor quality
NEW!pdf file icon7.7 MB
AV-3Vacuum Tube Millivolt Meter
Schematic only
NEW!pdf file icon218 KB
AV-3UVacuum Tube Millivolt Meter
Schematic only
 pdf file icon181 KB
AW-1Audio Wattmeter
Schematic and specifications
 pdf file icon671 KB
AW-1UAudio Wattmeter
Complete manual
NEW!pdf file icon23.4 MB
BC-1ABroadband AM Tuner
Schematic only
 pdf file icon344 KB
BE-4Battery Eliminator
Schematic and specifications
 pdf file icon893 KB
BE-5Battery Eliminator
Schematic only
 pdf file icon142 KB
BG-1Bar Generator
Schematic and specifications
 pdf file icon639 KB
BR-1Broadcast Receiver
Schematic only
NEW!pdf file icon566 KB
BR-2Broadcast Receiver
Schematic and specifications
 pdf file icon949 KB
BT-1Battery Tester
Specifications only
NEW!pdf file icon243 KB
C-2Condenser Checker
Schematic only
NEW!pdf file icon56 KB
C-3Condenser Checker
Schematic only
NEW!pdf file icon524 KB
C-3UResistance and Capacitance Bridge
Schematic and specifications
NEW!pdf file icon5.0 MB
CA-1Conelrad Alarm
Schematic only
NEW!pdf file icon142 KB
CC-1Tube Checker
Schematic only
 pdf file icon198 KB
CI-1Charge Indicator
Schematic only
 pdf file icon121 KB
CI-1020Timing Light
Schematic only
 pdf file icon280 KB
CI-1040Deluxe Timing Light
Schematic only
 pdf file icon301 KB
CI-1078Digital MPH and MPG Meter
Schematic only
NEW!pdf file icon1.4 MB
CI-1080Exhaust Gas Analyzer
Schematic, specifications adjustments and operation
NEW!pdf file icon3.7 MB
CM-1Capacity Meter
Schematic only
 pdf file icon165 KB
CO-1Code Oscillator
Schematic only
NEW!pdf file icon45 KB
CO-1015Solid State Ignition Analyzer
Schematic only
NEW!pdf file icon700 KB
CO-2660Ignition Alalyzer
Schematic only - poor quality
NEW!pdf file icon329 KB
CR-1Crystal Receiver
Schematic only
NEW!pdf file icon21 KB
CR-1000A & CRA-1000-1FM Stereo Tuner & Amplifier
Schematic only
 pdf file icon1.8 MB
CS-1Condenser Subsitution Box
Assembly drawing
NEW!pdf file icon32 KB
CT-1Capaci-Tester
Schematic only
NEW!pdf file icon291 KB
DF-2Transistor Radio Navigator
Schematic only
NEW!pdf file icon413 KB
DX-20Transmitter
Schematic only
 pdf file icon170 KB
DX-35Transmitter
Schematic only
 pdf file icon210 KB
DX-40Transmitter
Schematic only
NEW!pdf file icon449 KB
DX-40UTransmitter
Schematic only
 pdf file icon629 KB
DX-60Transmitter
Partial manual
NEW!pdf file icon1.5 MB
DX-60BTransmitter
Schematic only
 pdf file icon1.2 MB
DX-100Transmitter
Schematic only
 pdf file icon855 KB
EA-212 Watt Amplifier
Schematic only
 pdf file icon403 KB
EA-3High Fidelity 14 Watt Amplifier
Schematic only
 pdf file icon446 KB
EC-1Analog Computer
Schematic only
 pdf file icon603 KB
EF-1Power Supply
Schematic only
 pdf file icon42 KB
ES-201DC Amplifier (from 1956 ES-400 analog computer)
Schematic only
 pdf file icon96 KB
ET-1000 / ETW-1000Circuit Design Trainer
Complete manual
NEW!pdf file icon8.2 MB
ET-3100Electronic Design Experimenter Signal Generator
Schematic and semiconductor identification chart
 pdf file icon1.8 MB
ET-3200Digital Design Experimenter
Schematic and layout diagram
NEW!pdf file icon1.7 MB
ET/ETW-4200Laser Trainer
Schematic only
NEW!pdf file icon244 KB
ETA-4200Laser Receiver
Schematic only
NEW!pdf file icon243 KB
ETW-3567Accessory Backpack
Schematic only
NEW!pdf file icon255 KB
EU-14AAC Utility Amplifier
Schematic and specifications
 pdf file icon92 KB
EU-70ADual Trace Oscilloscope
Schematic only
 pdf file icon3.1 MB
EU-800Comparator/V-F Card
Schematic only
 pdf file icon301 KB
EU-805Input Comparator Module
Schematic only - poor quality
 pdf file icon99 KB
EU-900-NAOperational Amplifier Card
Schematic only
 pdf file icon54 KB
EUP-26Multimeter
Schematic, specifications and switch
 pdf file icon2.0 MB
EUW-15Science Series Universal Power Supply
Schematic and specifications
NEW!pdf file icon121 KB
EUW-16Science Series Voltage Reference Source
Schematic and specifications
 pdf file icon84 KB
EUW-17Science Series Transistor Power Supply
Schematic and specifications
 pdf file icon90 KB
EUW-19AScience Series Operational Amplifier System
Schematic and specifications
 pdf file icon236 KB
EUW-20AScience Series Servo Recorder
Schematic and specifications
 pdf file icon163 KB
EUW-24Science Series VTVM
Schematic and specifications
 pdf file icon223 KB
EUW-25Science Series DC Coupled Oscilloscope
Schematic and specifications
 pdf file icon303 KB
EUW-27Science Series Sine-Square Wave Generator
Schematic and specifications
NEW!pdf file icon149 KB
FD-1-6 / FD-1-12Fuel Vapour Detector
Schematic only
 pdf file icon106 KB
FM-2FM Tuner
Schematic only
 pdf file icon266 KB
FM-3AFM Tuner
Schematic only
 pdf file icon404 KB
FM-4FM Tuner
Schematic only
 pdf file icon193 KB
FM-4UFM Tuner
Schematic only
 pdf file icon521 KB
G-5Signal Generator
Schematic only
NEW!pdf file icon210 KB
GC-1AGeneral Coverage Receiver
Schematic only
NEW!pdf file icon247 KB
GC-1000-AMost Accurate Clock
Schematic only
NEW!pdf file icon8.6 MB
GC-1005Electronic Clock
Schematic only - poor quality
 pdf file icon483 KB
GC-1092DTime Calendar Clock
Schematic only
 pdf file icon742 KB
GC-1093Digital Car Clock
Schematic only
NEW!pdf file icon669 KB
GC-1107Digital Alarm Clock
Schematic only
 pdf file icon507 KB
GC-1195 / GC-1197Digital Floor Clock / Digital Shelf Clock
Schematic only
 pdf file icon1.8 MB
GC-1415Quartz Clock/Timer
Schematic only
NEW!pdf file icon667 KB
GCA-1000-51 and -52Antenna
Partial manual
 pdf file icon498 KB
GCA-1195-1Chimes for GC-1195 and GC-1197 clocks
Schematic only
 pdf file icon3.5 MB
GD-1AGrid Dip Meter
Schematic only
 pdf file icon167 KB
GD-1BGrid Dip Meter
Schematic and specifications
 pdf file icon472 KB
GD-39Ultrasonic Intrusion Alarm
Schematic only
 pdf file icon418 KB
GD-48Metal Locator
Schematic only
NEW!pdf file icon849 KB
GD-49The Informer Ultrasonic Intrusion Alarm
Complete manual
NEW!pdf file icon5.3 MB
GD-69Thumb Tach
Schematic only
 pdf file icon270 KB
GD-125Q Multiplier
Schematic only
 pdf file icon362 KB
GD-600Photoelectric Light Switch
Schematic only
NEW!pdf file icon200 KB
GD-973SCR Speed Control
Schematic only
 pdf file icon82 KB
GD-1018Light Dimmer
Schematic only
NEW!pdf file icon314 KB
GD-1024Telephone Amplifier
Schematic only
NEW!pdf file icon236 KB
GD-1026Emergency Strobe Light
Schematic only
 pdf file icon96 KB
GD-1150Ultrasonic Cleaner
Partial manual
NEW!pdf file icon712 KB
GD-1157Auto Intrusion Alarm
Schematic only
NEW!pdf file icon501 KB
GD-1183Freezer Failure Alarm
Schematic only
NEW!pdf file icon148 KB
GD-1186Digital Scale
Schematic only
NEW!pdf file icon3.4 MB
GD-1246ARechargeable Lamp
Schematic only
 pdf file icon228 KB
GD-1295Smart Outlet Box
Schematic only
 pdf file icon310 KB
GD-1530RS-232C to BSR X10 Interface
Complete manual
NEW!pdf file icon4.3 MB
GD-1701Flood Alarm
Schematic only
NEW!pdf file icon601 KB
GD-1776Programmable Home Heating Control
Schematic and circuit description
NEW!pdf file icon179 KB
GDA-19-2Digital 5 Proportional Receiver
Schematic only - incomplete?
 pdf file icon1.4 MB
GDA-19-42Subminiature Digital Proportional Servo
Schematic only
 pdf file icon458 KB
GDA-57-13-Channel RC Transmitter
Schematic only
 pdf file icon1.6 MB
GDA-57-2 / GDA-19-43-Channel RC Receiver & Servo
Schematic only
 pdf file icon1.7 MB
GDA-206Servo Simulator?
Schematic only
NEW!pdf file icon329 KB
GDA-405-28-Channel Digital Proportional Receiver
Schematic only - poor quality
NEW!pdf file icon186 KB
GDA-505-D5-channel Digital Proportional R/C Transmitter
Schematic only
 pdf file icon3.0 MB
GDA-1205-28-Channer Modular R/C Receiver
Schematic only
 pdf file icon1.2 MB
GDA-1205-4 / GDA-1205-5R/C Servo
Schematic only
 pdf file icon260 KB
GDA-1205-D8-channel R/C Transmitter
Schematic only
 pdf file icon3.0 MB
GDA-3209-1Deluxe Garage Door Opener
Schematic only
 pdf file icon953 KB
GH-12AMicrophone
Schematic only
 pdf file icon80 KB
GP-11Vibrator Power Supply
Schematic and circuit description
NEW!pdf file icon909 KB
GR-24AM Portable Transistor Radio
Schematic only
 pdf file icon80 KB
GR-64Shortwave Receiver
Schematic only
 pdf file icon2.8 MB
GR-78General Coverage Receiver
Partial manual - poor quality
 pdf file icon5.3 MB
GR-81Economy SWL Radio
Partial manual
NEW!pdf file icon1014 KB
GR-88VHF-FM Monitor Receiver
Schematic only
NEW!pdf file icon679 KB
GR-91General Coverage Receiver
Complete manual
NEW!pdf file icon3.8 MB
GR-98VHF Aircraft Monitor Receiver
Schematic only
NEW!pdf file icon1.6 MB
GR-151ATransistor Radio
Schematic only
 pdf file icon55 KB
GRA-180Color Television
Schematic and specifications
NEW!pdf file icon4.0 MB
GRS-65AHand-Held Transceiver
Schematic only - poor quality
NEW!pdf file icon270 KB
GT-1217Electronic Directory/Dialer
Schematic only
NEW!pdf file icon994 KB
GW-30Hand Held Citizens Band Transceiver
Schematic only
NEW!pdf file icon375 KB
GW-31Hand Held Citizens Band Transceiver
Schematic only - poor quality
 pdf file icon177 KB
GW-31AHand Held Citizens Band Transceiver
Schematic only
 pdf file icon550 KB
H8-1 / H8-38K Static Memory
Schematic only
NEW!pdf file icon556 KB
HA-10Kilowatt Linear Amplifier
Schematic only
 pdf file icon59 KB
HA-14SSB Linear Amplifier
Schematic only - poor quality
 pdf file icon774 KB
HA-2012-Meter Amplifier
Schematic only
NEW!pdf file icon550 KB
HA-2022-Meter FM Amplifier
Schematic only
 pdf file icon328 KB
HA-202A2-Meter FM Amplifier
Schematic only
NEW!pdf file icon2.1 MB
HD-1Harmonic Distortion Meter
Schematic only
NEW!pdf file icon537 KB
HD-10Electronic Keyer
Schematic and circuit description
 pdf file icon2.5 MB
HD-15Hybrid Phone Patch
Schematic only
 pdf file icon19 KB
HD-19Hybrid Phone Patch
Schematic only
 pdf file icon205 KB
HD-20Crystal Calibrator
Schematic only
 pdf file icon124 KB
HD-1250Solid-State Dip Meter
Schematic only
 pdf file icon679 KB
HD-1410Electronic Keyer
Schematic only
 pdf file icon42 KB
HD-1416Code Oscillator
Schematic only
 pdf file icon666 KB
HD-1418Active Audio Filter
Schematic only
NEW!pdf file icon2.4 MB
HD-1420VLF Converter
Schematic and PCB layout
NEW!pdf file icon380 KB
HD-1422Antenna Noise Bridge
Schematic only
NEW!pdf file icon317 KB
HD-1424Active Antenna
Schematic only
NEW!pdf file icon216 KB
HD-1426Relative Field Strength Meter
Schematic only
NEW!pdf file icon99 KB
HD-1481Remote Coax Switch
Schematic only
NEW!pdf file icon1.1 MB
HD-1515Phone Patch
Schematic only
NEW!pdf file icon185 KB
HD-1530Touch-Tone Decoder
Schematic and circuit description
NEW!pdf file icon2.4 MB
HD-1982Micoder
Schematic only
 pdf file icon1.0 MB
HD-1984Micoder II
Schematic only
NEW!pdf file icon399 KB
HD-1986Microlizer
Schematic only
NEW!pdf file icon600 KB
HD-3006Crossfire
Schematic only
NEW!pdf file icon190 KB
HD-4040Terminal Node Controller
Schematic only
NEW!pdf file icon2.5 MB
HD/HDW-1780IntelliRotor
Schematic only
NEW!pdf file icon761 KB
HDA-4040-1TNC Status Indicator
Schematic only
NEW!pdf file icon328 KB
HDP-21AMicrophone
Instructions
NEW!pdf file icon2.7 MB
HFT-9Antenna Tuner
Schematic and circuit description
 pdf file icon494 KB
HFW-1Television Alignment Generator
Complete manual - poor quality
 pdf file icon6.9 MB
HG-10VFO
Schematic and specifications
 pdf file icon1.7 MB
HK-21Pocket Packet
Schematic only
 pdf file icon1.8 MB
HL-22002KW Linear Amplifier
Schematic only
NEW!pdf file icon2.4 MB
HM-9QRP Wattmeter
Schematic only
NEW!pdf file icon305 KB
HM-10ATunnel Dipper
Complete manual
NEW!pdf file icon4.9 MB
HM-11Reflected Power and Standing Wave Ratio Bridge
Schematic only
NEW!pdf file icon36 KB
HM-15Reflected Power Meter and SWR Bridge
Schematic only
NEW!pdf file icon138 KB
HM-102RF Power Meter
Schematic only
 pdf file icon719 KB
HM-2102VHF Wattmeter
Schematic only
 pdf file icon410 KB
HM-2140HF Dual Wattmeter
Complete manual
NEW!pdf file icon2.6 MB
HN-31"Cantenna" Dummy RF Load
Schematic only
 pdf file icon37 KB
HO-10Audio Analyzer Monitor Scope
Complete manual
NEW!pdf file icon1.8 MB
HO-10EAudio Analyzer Monitor Scope
Schematic and specifications
NEW!pdf file icon172 KB
HO-13Ham-Scan
Schematic only
NEW!pdf file icon3.4 MB
HO-5404Station Monitor
Schematic only - poor quality
NEW!pdf file icon1.5 MB
HOA-5404-1Pan Adaptor Module
Schematic only
NEW!pdf file icon1.1 MB
HP-13ATransistorized DC Power Supply
Schematic only
 pdf file icon109 KB
HP-23AC Power Supply
Schematic only
 pdf file icon112 KB
HP-23AAC Power Supply
Schematic only
 pdf file icon371 KB
HP-23BAC Power Supply
Schematic only
 pdf file icon92 KB
HP-24AC Power Supply
Schematic only
 pdf file icon165 KB
HP-1144AC Power Supply
Schematic only
 pdf file icon546 KB
HP-1144AAC Power Supply
Schematic only
NEW!pdf file icon333 KB
HR-10BBasic Amateur Band Receiver
Schematic only
 pdf file icon1.3 MB
HR-20Mobile Receiver
Schematic only
 pdf file icon2.0 MB
HR-1160Amateur Receiver?
Schematic only
NEW!pdf file icon355 KB
HR-1680Amateur Receiver?
Schematic only - poor quality
NEW!pdf file icon554 KB
HRA-10-1Crystal Calibrator
Schematic only
 pdf file icon126 KB
HVM-1220-1Monochrome Video Monitor
Schematic only
NEW!pdf file icon1.1 MB
HW-7Low-Power CW Transceiver
Schematic only
 pdf file icon1.9 MB
HW-8Transceiver
Schematic only
 pdf file icon2.9 MB
HW-9Deluxe QRP CW Transceiver
Schematic only
 pdf file icon9.4 MB
HW-10"Shawnee" Transceiver
Schematic only
NEW!pdf file icon2.4 MB
HW-1280-Meter SSB Transceiver
Schematic only
 pdf file icon2.2 MB
HW-12A75-Meter SSB Transceiver
Schematic only
 pdf file icon288 KB
HW-16Novice Transceiver
Schematic only
 pdf file icon559 KB
HW-172 Meter AM Transceiver
Schematic only
 pdf file icon292 KB
HW-1910 Meter Amateur Transceiver
Schematic only
 pdf file icon2.5 MB
HW-2240 Meter SSB Transceiver
Schematic only
 pdf file icon544 KB
HW-22A40 Meter SSB Transceiver
Schematic only
 pdf file icon1.8 MB
HW-29A6 Meter Amateur Transceiver
Schematic only
 pdf file icon960 KB
HW-302 Meter Amateur Transceiver
Schematic only
 pdf file icon299 KB
HW-3220 Meter SSB Transceiver
Schematic only
 pdf file icon1.1 MB
HW-32A20 Meter SSB Transceiver
Schematic only
 pdf file icon3.4 MB
HW-100SSB Transceiver
Schematic only
 pdf file icon2.8 MB
HW-104Transciever
Schematic only - poor quality
NEW!pdf file icon400 KB
HW-2022 Meter FM Transceiver
Schematic only - poor quality
 pdf file icon2.1 MB
HW-20212 Meter Hand-Held Transceiver
Schematic only - poor quality
 pdf file icon1.7 MB
HWA-7-1Accessory Power Supply
Schematic and circuit description
 pdf file icon314 KB
HWA-202-2Tone Burst Encoder
Schematic only
NEW!pdf file icon184 KB
HWA-2036-3AC Power Supply
Schematic only
NEW!pdf file icon295 KB
HWA-5400Power Supply and Clock
Schematic only
NEW!pdf file icon445 KB
HX-10"Marauder" SSB Transmitter
Schematic only - poor quality
 pdf file icon2.6 MB
HX-20SSB Mobile Transmitter
Schematic only
 pdf file icon2.1 MB
HX-1681CW Transmitter
Schematic only
NEW!pdf file icon7.7 MB
IA-1Ignition Analyzer
Schematic and specifications
NEW!pdf file icon1.7 MB
IB-1BImpedance Bridge
Schematic only - poor quality
NEW!pdf file icon162 KB
IB-2Impedance Bridge
Schematic and specifications
 pdf file icon1.1 MB
IB-2AImpedance Bridge
Schematic only
 pdf file icon224 KB
IB-28Impedance Bridge
Schematic only
 pdf file icon1.1 MB
IB-101Frequency Counter
Schematic only
 pdf file icon1.2 MB
IB-102Frequency Scaler
Schematic only
 pdf file icon191 KB
IB-1101Frequency Counter
Schematic only
 pdf file icon1.6 MB
IB-5281RLC Bridge
Complete manual
NEW!pdf file icon7.6 MB
IC-1001Logic Analyzer
Schematic only
NEW!pdf file icon478 KB
IC-1001 SoftwareLogic Analyzer
Software
NEW!zip file icon9 KB
IC-2100Electronic Sliderule
Schematic and semiconductor identification chart
NEW!pdf file icon3.9 MB
ID-22Electronic Switch
Partial manual
NEW!pdf file icon4.0 MB
ID-29Automotive Tune-Up Meter
Schematic and specifications
 pdf file icon213 KB
ID-1290Weather Station
Schematic only
 pdf file icon529 KB
ID-1390Electronic Digital Thermometer
Schematic only
 pdf file icon492 KB
ID-1590 / ID-1590EDigital Wind Speed/Direction Indicator (corrected)
Schematic only
 pdf file icon517 KB
ID-4001Digital Weather Computer
Schematic only
 pdf file icon5.8 MB
IG-18Sine-Square Audio GeneratorNEW!pdf file icon4.2 MB
IG-18 ModIG-18 Modifications Copyright 1970 by Edward T. Dell Jr. zip file icon1.5 MB
IG-28Color Bar and Dot Generator gif file icon585 KB
IG-37FM Stereo GeneratorNEW!pdf file icon230 KB
IG-42Laboratory Signal Generator gif file icon91 KB
IG-62Color Bar and Dot Generator gif file icon85 KB
IG-72Audio Generator gif file icon19 KB
IG-82Sine Square Audio Generator gif file icon107 KB
IG-102RF Generator gif file icon163 KB
IG-1271Function GeneratorNEW!pdf file icon1.7 MB
IG-1275Lin/Log Sweep GeneratorNEW!pdf file icon381 KB
IG-4244Oscilloscope CalibratorNEW!zip file icon3.6 MB
IG-4505Oscilloscope GeneratorNEW!pdf file icon387 KB
IG-5218Sine-Square Audio Generator pdf file icon501 KB
IG-5240Color Generator zip file icon1.4 MB
IG-5280RF Oscillator zip file icon169 KB
IG-5282Audio GeneratorNEW!pdf file icon1.6 MB
IM-1Intermodulation Analyzer zip file icon195 KB
IM-10VTVM gif file icon47 KB
IM-11VTVM gif file icon41 KB
IM-12Harmonic Distortion Meter gif file icon64 KB
IM-13Service Bench VTVM gif file icon182 KB
IM-16Solid-State Voltmeter zip file icon182 KB
IM-17Utility Solid State Voltmeter zip file icon72 KB
IM-17 GermanUtility Solid State Voltmeter (German)NEW!gif file icon451 KB
IM-18VTVM gif file icon124 KB
IM-21AC VTVM gif file icon40 KB
IM-22Audio AnalyzerNEW!jpg file icon87 KB
IM-28UValve VoltmeterNEW!gif file icon75 KB
IM-30Transistor TesterNEW!pdf file icon470 KB
IM-30UTransistor TesterNEW!pdf file icon39.0 MB
IM-48Audio AnalyzerNEW!gif file icon39 KB
IM-58Harmonic Distortion MeterNEW!gif file icon137 KB
IM-104Solid-State VOM gif file icon184 KB
IM-1202Digital Mulitimeter zip file icon406 KB
IM-2202Portable Digital MultimeterNEW!pdf file icon3.3 MB
IM-2218Portable Digital MultimeterNEW!jpg file icon373 KB
IM-2260Digital MultimeterNEW!pdf file icon8.6 MB
IM-2410Frequency Counter pdf file icon1.4 MB
IM-2420Frequency CounterNEW!jpg file icon909 KB
IM-4100 / SM-4100 / S-1357AFrequency Counter zip file icon282 KB
IM-4120 / SM-4120Frequency/Period MeterNEW!pdf file icon961 KB
IM-4130 / SM-4130Frequency/Period MeterNEW!zip file icon1.1 MB
IM-4180FM Deviation MeterNEW!pdf file icon2.8 MB
IM-4190 / SM-4190Bidirectional RF Wattmeter gif file icon106 KB
IM-521040KV Probe MeterNEW!zip file icon1.3 MB
IM-5238AC Voltmeter zip file icon428 KB
IM-5258Harmonic Distortion AnalyzerNEW!jpg file icon3.0 MB
IM-5284MultimeterNEW!pdf file icon4.2 MB
IMA-100-10High Voltage Oscilloscope Probe (X100)NEW!jpg file icon441 KB
IN-11Decade Resistance Box gif file icon14 KB
IN-17Decade Resistance Unit zip file icon148 KB
IN-21Decade Capacitance Box gif file icon12 KB
IN-3117Decade Resistance UnitNEW!pdf file icon215 KB
IN-3127Decade Capacitance UnitNEW!gif file icon125 KB
IN-3147Capacitance Switch BoxNEW!pdf file icon114 KB
IO-10OscilloscopeNEW!pdf file icon1.2 MB
IO-12Oscilloscope jpg file icon307 KB
IO-12UOscilloscopeNEW!jpg file icon2.2 MB
IO-14OscilloscopeNEW!pdf file icon1.5 MB
IO-20Ignition Analyzer zip file icon225 KB
IO-101VectorscopeNEW!pdf file icon577 KB
IO-102Oscilloscope gif file icon297 KB
IO-103Oscilloscope zip file icon337 KB
IO-104Triggered Sweep OscilloscopeNEW!pdf file icon3.5 MB
IO-1128Vector MonitorNEW!jpg file icon240 KB
IO-41055Mhz Single Trace Oscilloscope zip file icon956 KB
IO-42055Mhz Dual Trace Oscilloscope zip file icon1.9 MB
IO-4235 / SO-423535MHz Dual Trace OscilloscopeNEW!zip file icon12.8 MB
IO-436060MHz 3 Trace OscilloscopeNEW!zip file icon19.6 MB
IO-4510 / SO-451015MHz Dual Trace OscilloscopeNEW!pdf file icon8.3 MB
IO-45405MHz Triggered OsciloscopeNEW!zip file icon4.8 MB
IO-45415MHz Portable OscilloscopeNEW!zip file icon1.4 MB
IO-4550Dual Trace Oscilloscope zip file icon929 KB
IO-4555 / SO-4555Single Trace OscilloscopeNEW!jpg file icon966 KB
IOA-4200Time-Voltage ModuleNEW!zip file icon9.7 MB
IP-12Battery Eliminator gif file icon28 KB
IP-17Regulated HV Power SupplyNEW!pdf file icon113 KB
IP-181-15V DC Regulated Power Supply zip file icon58 KB
IP-20Transistorized Regulated Power Supply zip file icon96 KB
IP-27Regulated L.V. Power Supply zip file icon247 KB
IP-281-30V DC Regulated Power Supply gif file icon71 KB
IP-32HV Power SupplyNEW!pdf file icon100 KB
IP-27000-60 VDC, 0-1.5 A Power Supply gif file icon159 KB
IP-27100-30 VDC, 0-3 A Power Supply gif file icon162 KB
IP-2715Battery EliminatorNEW!gif file icon38 KB
IP-2718Triple Power Supply zip file icon200 KB
IP-27200-15 VDC, 0-5 A Power Supply gif file icon158 KB
IP-27281-15 VDC Regulated Power Supply zip file icon230 KB
IP-27300-7.5 VDC, 0-10 A Power Supply gif file icon156 KB
IPA-5280AC Power Supply- Thanks to James gif file icon48 KB
IT-1Isolation Transformer zip file icon95 KB
IT-10Transistor-Diode Checker gif file icon13 KB
IT-12Signal Tracer gif file icon63 KB
IT-17Tube TesterNEW!pdf file icon315 KB
IT-18Transistor TesterNEW!zip file icon1.2 MB
IT-21Tube TesterNEW!pdf file icon1.7 MB
IT-22Capaci-TesterNEW!gif file icon47 KB
IT-28Capacitor Checker gif file icon51 KB
IT-121FET/Transistor TesterNEW!pdf file icon214 KB
IT-1121Semiconductor Curve Tracer jpg file icon678 KB
IT-2250Auto-Ranging Digital Capacitance MeterNEW!pdf file icon5.0 MB
IT-3120FET/Transistor TesterNEW!zip file icon12.6 MB
IT-3121Semiconductor Curve TracerNEW!zip file icon2.4 MB
IT-5283Signal TracerNEW!pdf file icon840 KB
LG-1Laboratory RF Generator pdf file icon284 KB
LP-2Linearity Pattern GeneratorNEW!pdf file icon265 KB
M-1Handitester zip file icon116 KB
MI-18Tachometer gif file icon25 KB
MI-25Fuel Vapor Detector jpg file icon641 KB
MI-29Fish Spotter/Depth Sounter gif file icon3.8 MB
MI-31AElectronic Tachometer gif file icon34 KB
MM-1Multimeter zip file icon100 KB
MP-10Power InverterNEW!jpg file icon218 KB
MR-1Mobile Receiver gif file icon250 KB
MR-18Radio Direction FinderNEW!pdf file icon477 KB
MR-21 jpg file icon889 KB
MT-1"Cheyenne" Mobile Transmitter pdf file icon324 KB
NE-12117-Day Intelligent Home Comfort ControlNEW!jpg file icon249 KB
NE-2112Heat Sniffer gif file icon56 KB
O-7OscilloscopeNEW!pdf file icon159 KB
O-9Oscilloscope zip file icon136 KB
O-10OscilloscopeNEW!jpg file icon499 KB
O-11Oscilloscope gif file icon84 KB
O-12OscilloscopeNEW!pdf file icon25.0 MB
OM-1OscilloscopeNEW!pdf file icon2.6 MB
OM-2Oscilloscope gif file icon67 KB
OM-3Oscilloscope gif file icon85 KB
OP-1Professional Oscilloscope pdf file icon460 KB
OR-1DC OscilloscopeNEW!zip file icon2.6 MB
OS-1General Purpose Oscilloscope zip file icon208 KB
OS-2Oscilloscope (poor quality scan)NEW!zip file icon2.0 MB
OS-12Oscilloscope gif file icon253 KB
PK-1Universal Scope Probe gif file icon45 KB
PK-3RF Probe pdf file icon114 KB
PK-3ARF Probe gif file icon4 KB
PKW-2Scope Probe gif file icon3 KB
PKW-101Oscilloscope Probe zip file icon130 KB
PM-2Mobile Meter jpg file icon126 KB
PS-2Laboratory Power SupplyNEW!gif file icon14 KB
PS-3HV Regulated Power Supply jpg file icon258 KB
PS-4HV Regulated Power Supply gif file icon98 KB
PS-9000Power SupplyNEW!pdf file icon550 KB
PSA-9Accessory Power SupplyNEW!jpg file icon84 KB
PT-1Professional AM-FM Stereo Tuner pdf file icon210 KB
PT-15Photo TimerNEW!pdf file icon2.5 MB
QF-1Q-Multiplier gif file icon38 KB
QM-1Q-Meter zip file icon337 KB
R-110Junior Transistor-Diode RadioNEW!pdf file icon1007 KB
RC-1Radiation Counter gif file icon107 KB
RF-1RF Signal GeneratorNEW!pdf file icon32 KB
RF-1URF Signal Generator gif file icon87 KB
RG-1General Coverage Receiver zip file icon985 KB
RP-1Record Player zip file icon126 KB
RP-1065Model Railroad Electronic ThrottleNEW!pdf file icon1.1 MB
RX-1"Mohawk" Amateur Communications Receiver gif file icon180 KB
Radcom-AllTechnical index mainly Radio Communications txt file icon185 KB
Radcom-HeathHeath technical index from Radio Communications txt file icon1 KB
S-2Electronic Switch zip file icon111 KB
S-3Electronic Switch for oscilloscope gif file icon31 KB
S-88Stereo Amplifier gif file icon272 KB
S-99Stereo AmplifierNEW!pdf file icon1.3 MB
SA-2Stereo Integrated Audio Amplifier gif file icon90 KB
SA-2060 CalCalibration Procedure for Heathkit Antenna Tuner SA-2060 & SA2060A
By Derf Mockford G8ZGK, 17 Nov 2007
NEW!pdf file icon207 KB
SA-2060ADe-Luxe Antenna TunerNEW!jpg file icon211 KB
SA-5010uMatic KeyerNEW!pdf file icon789 KB
SA-70104-Element Tri-Band AntennaNEW!pdf file icon34.9 MB
SB-10SSB Adaptor gif file icon154 KB
SB-100SSB Transceiver zip file icon808 KB
SB-101SSB Transceiver pdf file icon6.9 MB
SB-102SSB TransceiverNEW!pdf file icon6.1 MB
SB-104ASSB Transceiver pdf file icon1.4 MB
SB-200Linear Amplifier zip file icon185 KB
SB-2202KW Linear Amplifier pdf file icon242 KB
SB-230Linear Amplifier gif file icon78 KB
SB-300SSB Amateur Receiver pdf file icon848 KB
SB-301SSB Amateur Receiver zip file icon496 KB
SB-303Solid-State SSB Reciever zip file icon456 KB
SB-401Transmitter zip file icon433 KB
SB-500TransverterNEW!pdf file icon325 KB
SB-610Monitor Scope gif file icon58 KB
SB-614Station MonitorNEW!pdf file icon1.6 MB
SB-620Scanalyzer gif file icon155 KB
SB-630Station Console gif file icon155 KB
SB-634Station ConsoleNEW!jpg file icon640 KB
SB-640External LMONEW!gif file icon60 KB
SB-644Remote VFO zip file icon183 KB
SB-644ARemote VFONEW!pdf file icon1.6 MB
SB-650Digital Frequency DisplayNEW!gif file icon172 KB
SB-1000Linear AmplifierNEW!pdf file icon5.0 MB
SBA-2001-1QSK BoardNEW!jpg file icon555 KB
SBM-104Modification Kit for SB-104NEW!zip file icon1.1 MB
SG-7RF Signal GeneratorNEW!gif file icon275 KB
SG-8RF Signal Generator zip file icon122 KB
SM-2380Ruggedized Autoranging DMMNEW!pdf file icon2.7 MB
SP-2Audio Pre-Amplifier pdf file icon341 KB
SQ-1Square Wave Generator zip file icon123 KB
SS-9000HF Synthesized TranscieverNEW!pdf file icon3.0 MB
SSB HW-101Transceiver
Schematic and specifications - poor quality
 pdf file icon3.7 MB
SW-717Shortwave ReceiverNEW!pdf file icon1.2 MB
T-2Signal Tracer gif file icon93 KB
T-3Visual-Aural Signal Tracer zip file icon113 KB
T-4Visual-Aural Signal TracerNEW!pdf file icon2.3 MB
TA-16Amplifier gif file icon330 KB
TA-17Solid-State Combo Amplifier gif file icon222 KB
TC-2Tube CheckerNEW!pdf file icon234 KB
TCR-1Transistor Clock RadioNEW!pdf file icon153 KB
TD-17Solid-State MetronomeNEW!zip file icon2.0 MB
TD-1006Color OrganNEW!pdf file icon147 KB
TS-2TV RF Signal Generator gif file icon47 KB
TS-3TV Signal Generator gif file icon70 KB
TS-4ATV Signal GeneratorNEW!gif file icon88 KB
TT-1Tube Tester zip file icon442 KB
TX-1"Apache" TransmitterNEW!gif file icon183 KB
Tube DataTube Data for IT-17, IT-21 and IT-3117 Tube TestersNEW!pdf file icon1.1 MB
UA-112 Watt Audio Amplifier gif file icon33 KB
UT-1Utility Power Supply gif file icon54 KB
UXR-1Transistor Radio gif file icon91 KB
UXR-2"Oxford" Transistor Radio gif file icon53 KB
V-4VTVM gif file icon102 KB
V-4AVTVM gif file icon41 KB
V-5VTVM gif file icon43 KB
V-6VTVM zip file icon104 KB
V-7AVTVM gif file icon97 KB
VC-2Voltage Calibrator zip file icon101 KB
VC-3Voltage CalibratorNEW!pdf file icon393 KB
VF-1VFO gif file icon43 KB
VF-2031Hand-Held 2-Meter Transceiver zip file icon568 KB
VHF-1"Seneca" VHF Ham TransmitterNEW!zip file icon647 KB
VT-1Vibrator Tester zip file icon102 KB
VX-1Voice Control gif file icon152 KB
W-2Mono Audio Power Amp zip file icon125 KB
W-5MWilliamson Type AmplifierNEW!pdf file icon7.7 MB
W-6A70W Audio AmplifierNEW!pdf file icon2.8 MB
W-6M70W Audio Amplifier gif file icon117 KB
W-7M55W Audio Power Amp gif file icon39 KB
W-GC-1AAmateur Receiver?NEW!pdf file icon2.0 MB
W3-AMAudio Power Amp jpg file icon112 KB
W4-AMWilliamson Type AmplifierNEW!pdf file icon7.9 MB
WA-P1Preamplifier zip file icon96 KB
WA-P2Audio PreamplifierNEW!pdf file icon5.9 MB
XC-22 Meter ConverterNEW!pdf file icon31 KB
XC-66 Meter Crystal ConverterNEW!gif file icon63 KB
XO-1Electronic CrossoverNEW!pdf file icon5.1 MB
XP-2Power Pack for GC-1 RecieverNEW!pdf file icon764 KB
XR-1Transistor RadioNEW!zip file icon1.6 MB
XR-2Transistor Radio gif file icon132 KB