Heathkit Schematic Diagram Archive
Updates
16th June 2007 - GR-78 General Coverage Receiver - Most of manual added
13th June 2007 - IO-4205 5Mhz Dual Trace Oscilloscope - Single page schematic added
11th June 2007 - AA-181 Mono Amplifier - complete manual and schematic added
11th June 2007 - RG-1 General Coverage Receiver - schematic and specs added11th June 2007 - S-88 Stereo Amplifier - schematic added
11th June 2007 - RG-1 General Coverage Receiver - schematic and specs added11th June 2007 - S-88 Stereo Amplifier - schematic added
6th January 2007 - GCA-1000-51 and -52 Antenna - assembly instructions added
6th January 2007 - DX-40U Transmitter - schematic added
6th January 2007 - MI-29 Fish Spotter/Depth Sounder - schematic added
6th January 2007 - DX-40U Transmitter - schematic added
6th January 2007 - MI-29 Fish Spotter/Depth Sounder - schematic added
28th August 2006 - TA-16 Amplifier - schematic added
12th April 2006 - HFW-1 TV Alignment Generator - full manual added
12th April 2006 - ID-1590 Digital Wind Speed/Direction Indicator - schematic added
12th April 2006 - ID-1590 Digital Wind Speed/Direction Indicator - schematic added
Schematics
- 309-B - R.F. Probe
- 309-C - R.F. Probe - Thanks to Gary
- 336 - High Voltage Probe - Thanks to K4OAH
- 337-B - Demodulator Probe
- 337-C - Demodulator Probe - Thanks to K4OAH
- 338-B - Peak-To-Peak Voltage Probe
- 342 - Low Capacity Probe - Thanks to K4OAH
- A-7B and A-7C - Audio Amplifiers
- A-7E - Audio Amplifier - Thanks to WA2YKG
- A-9A - Audio Amplifier
- A-9C - Integrated Amplifier
- AA-1 - Audio Analyser - Thanks to G8VR
- AA-181 - Mono Amplifier
- AA-14 - Solid State Stereo Amplifier - Thanks to WA2DYA
- AA-1600 - Power Amplifier - Thanks to Ted
- AA-1640 - Power Amplifier, Preamplifier and Output Meter - Thanks to JNC
- AC-1 - Antenna Coupler
- AD-1305 - Audio Equalizer - Thanks to WA1UGZ
- AF-1 - Audio Frequency Meter
- AG-8 - Audio Generator
- AG-9A - Audio Generator
- AG-9U - Audio Generator - Hi-Fi News Reprint See also AG-9U Mod for more details
- AG-10 - Sine-Square Generator - Thanks to G8VR
- AJ-14 - Solid State FM Stereo Tuner - Thanks to WA2DYA
- AM-1 - Antenna Impedance Meter - Thanks to W6JOD
- AM-2 - Reflected Power & Standing Wave Ratio Bridge - Thanks to G3OTH
- AN-10 - Mixed Lows Stereo Crossover - Thanks to Gary
- AO-1 - Audio Oscillator
- AR-2 - Communications Receiver
- AR-3 - Communications Receiver - Thanks to Dick by way of Deane
- AR-14 - Solid State FM Receiver - Thanks to VE3VBU
- AR-27 - Solid State FM Receiver - Thanks to VE3VBU
- AT-1 - Amateur Transmitter
- AV-1 - VTVM
- AV-2 - AC Voltmeter
- AV-3U - Vacuum Tube Millivolt Meter - Hi-Fi News Reprint
- AW-1 - Audio Wattmeter
- AW-1U - Audio Wattmeter - Hi-Fi News Reprint
- BC-1A - Broadband FM Tuner - Thanks to G8VR
- BE-4 - Battery Eliminator
- BE-5 - Battery Eliminator - Thanks to G8VR
- BG-1 - Bar Generator
- BR-2 - Broadcast Band Receiver
- C-3 - Condenser Checker
- CC-1 - Tube Checker - Thanks to G8VR
- CI-1 - Charge Indicator - Thanks to G8VR
- CI-1020 - Timing Light - Thanks to Gary
- CI-1040 - Deluxe Timing Light - Thanks to Gary
- CM-1 - Capacity Meter - Thanks to G8VR
- CRA-1000A - Stereo Power Amplifier - Thanks to Carl
- DX-20 - Transmitter - Thanks to W6JOD
- DX-35 - Transmitter - Thanks to G3OTH
- DX-40 - Transmitter - Thanks to G3OTH
- DX-40U - Transmitter - Thanks to Roger G4BZI
- DX-60B - Transmitter - Thanks to KF6RMK
- DX-100 - Transmitter - Thanks to W7AVK
- EA-2 - 12 Watt Amplifier - Thanks to VE3VBU
- EA-3 - High Fidelity 14 Watt Amplifier - Thanks to N7RHU
- EC-1 - Analog Computer - Thanks to Dale
- EF-1 - Power Supply
- ES-201 - DC Amplifier (from 1956 ES-400 analog computer) - Thanks to http://www.metasonix.com/
- ET-3100 - Electronic Design Experimenter - Thanks to Daniel
- EU-14A - AC Utility Amplifier
- EU-70A - Dual Trace Oscilloscope - Thanks to Gary
- EU-800 - Comparator/V-F Card - Thanks to Dale
- EU-805 - Input Comparator Module - Thanks to Dale
- EU-900-NA - Operational Amplifier Card - Thanks to Dale
- EUP-26 - Multimeter
- EUW-16 - Voltage Reference Source
- EUW-17 - Transistor Power Supply
- EUW-19A - Operational Amplifier System
- EUW-20A - Servo Recorder
- EUW-24 - VTVM
- EUW-25 - DC Coupled Oscilloscope
- FD-1-6 / FD-1-12 - Fuel Vapour Detector - Thanks to G8VR
- FM-2 - FM Tuner
- FM-3A - FM Tuner - Thanks to KC2HAE
- FM-4 - FM Tuner - Thanks to VE3VBU
- FM-4U - FM Tuner - Radio Constructor Reprint
- GC-1005 - Electronic Clock - Thanks to Gary
- GC-1092D - Time Calendar Clock - Thanks to Erik
- GC-1107 - Digital Alarm Clock - Thanks to Erik
- GC-1195 / GC-1197 - Digital Floor/Shelf Clock - Thanks to WA2DYA
- GCA-1000-51 and -52 - Antenna - Thanks to Don K5DBB
- GCA-1195-1 - Chimes for GC-1195 and GC-1197 clocks - Thanks to Gordon
- GD-1A - Grid Dip Meter - Thanks to CT1CH
- GD-1B - Grid Dip Meter - Thanks to VE3MAL
- GD-39 - Ultrasonic Intrusion Alarm - Thanks to WA2DYA
- GD-69 - Thumb Tach - Thanks to W1DBN
- GD-125 - Q Multiplier
- GD-973 - SCR Speed Control - Thanks to Dale
- GD-1026 - Emergency Strobe Light
- GD-1246A - Rechargeable Lamp - Thanks to WA2DYA
- GD-1295 - Smart Outlet Box - Thanks to WA2DYA
- GDA-19-2 - Digital 5 Proportional Receiver - Thanks to Bob Huish
- GDA-19-42 - Subminiature Digital Proportional Servo - Thanks to W1DBN
- GDA-57-1 - 3-Channel RC Transmitter - Thanks to Bob Huish
- GDA-57-2 / GDA-19-4 - 3-Channel RC Receiver & Servo - Thanks to Bob Huish
- GDA-505-D - 5-channel Digital Proportional R/C Transmitter
- GDA-1205-2 - Modular R/C Receiver
- GDA-1205-4 / GDA-1205-5 - R/C Servo
- GDA-1205-D - 8-channel R/C Transmitter
- GDA-3209-1 - Deluxe Garage Door Opener - Thanks to Gary
- GH-12A - Microphone - Thanks to KB9JJA
- GR-24 - Transistor Radio
- GR-64 - Shortwave Receiver
- GR-78 - General Coverage Receiver - Thanks to Jay
- GR-91 - General Coverage Receiver - Thanks to KF4FHS
- GR-151A - Transistor Radio
- GW-31 - Hand-Held Transceiver
- GW-31A - Hand-Held Transceiver - Thanks to VE3VBU
- HA-10 - "Warrior" Amplifier
- HA-14 - SSB Linear Amplifier - Thanks to KB9JJA
- HA-202 - 2-Meter FM Amplifier - Thanks to VE1NU
- HD-10 - Electronic Keyer - Thanks to VE1NU
- HD-15 - Hybrid Phone Patch - Thanks to K4XL
- HD-19 - Hybrid Phone Patch
- HD-20 - Crystal Calibrator - Thanks to K4OAH
- HD-1250 - Solid-State Dip Meter - Thanks to VE3VBU
- HD-1410 - Electronic Keyer - Thanks to VE1NU
- HD-1416 - Code Oscillator - Thanks to KB9JJA
- HD-1982 - Micoder - Thanks to K1ZOK
- HFT-9 - QRP Antenna Tuner - Thanks to KB9JJA
- HFW-1 - Television Alignment Generator - Thanks to Trevor Cass
- HG-10 - VFO - Thanks to LA8AK
- HK-21 - Pocket Packet - Thanks to K1ZOK
- HM-102 - RF Power Meter - Thanks to W1ATV
- HM-2102 - VHF Wattmeter - Thanks to VE3VBU
- HN-31 - Dummy Load - Thanks to KB9JJA
- HO-10 - Audio Analyzer Monitor Scope - Thanks to LA8AK
- HO-10 - Introduction - Thanks to LA8AK
- HP-13A - Transistorized DC Power Supply - Thanks to W6JOD
- HP-23 - Power Supply
- HP-23A - AC Power Supply - Thanks to K1ZOK
- HP-23B - Power Supply - Thanks to VE1NU
- HP-24 - Power Supply - Thanks to KB9JJA
- HP-1144 - AC Power Supply - Thanks to VE1NU
- HR-10B - Basic Amateur Band Receiver - Thanks to N3MA
- HR-20 - Mobile Receiver
- HRA-10-1 - Crystal Calibrator - Thanks to N3MA
- HW-7 - Low-Power CW Transceiver - Thanks to LA8AK
- HW-8 - Transceiver - Thanks to KC7YDB
- HW-9 - Deluxe QRP CW Transceiver - Thanks to KA9VPH
- HW-12 - 80-Meter SSB Transceiver - Thanks to K1ZOK
- HW-12A - Transceiver - Thanks to LA8AK
- HW-16 - Transceiver - Thanks to K4XL
- HW-17 - Two Meter AM Transceiver - Thanks to LA8AK
- HW-19 - 10-Meter Amateur Transceiver - Thanks to K1ZOK
- HW-22 - 40 Meter SSB Transceiver - Thanks to K1ZOK
- HW-22A - 40-Meter SSB Transceiver - Thanks to K1ZOK
- HW-29A - Transceiver - Thanks to LA8AK
- HW-30 - Transceiver - Thanks to LA8AK
- HW-32 - Transceiver - Thanks to LA8AK
- HW-32A - 20-Meter SSB Transceiver - Thanks to K1ZOK
- HW-100 - Transceiver - Thanks to G3OTH
- HW-101 - Transceiver - Thanks to LA8AK
- HW-202 - Transceiver - Thanks to LA8AK
- HW-2021 - 2-Meter Hand-Held Transceiver - Thanks to K1ZOK
- HWA-7-1 - Power supply - Thanks to LA8AK
- HX-10 - "Marauder" SSB Transmitter - Thanks to WB8DBF
- HX-20 - SSB Mobile Transmitter
- IB-2 - Impedance Bridge - Thanks to VE3VBU
- IB-2A - Impedance Bridge
- IB-28 - Impedance Bridge - Thanks to VE3VBU
- IB-101 - Frequency Counter - Thanks to VE3VBU
- IB-102 - Frequency Scaler - Thanks to Dale
- IB-1101 - Frequency Counter - Thanks to VE3VBU
- ID-29 - Automotive Tune-Up Meter - Thanks to Gary
- ID-1290 - Weather Station - Thanks to VE3VBU
- ID-1390 - Electronic Digital Thermometer - Thanks to Gary
- ID-1590 - Digital Wind Speed/Direction Indicator (corrected) - Thanks to Alex
- ID-4001 - Digital Weather Computer - Thanks to Bob Huish
- IG-18 - Sine/Square Audio Generator - (See also IG-5218 for more details and IG-18MOD for modifications)
- IG-28 - Color Bar and Dot Generator - Thanks to K1ZOK
- IG-42 - Laboratory Signal Generator - Thanks to Bob
- IG-62 - Color Bar and Dot Generator - Thanks to K1ZOK
- IG-72 - Audio Generator - Thanks to VE1NU
- IG-82 - Sine Square Audio Generator - Thanks to Bob
- IG-102 - RF Generator
- IG-1271 - Function Generator - Thanks to VE3VBU
- IG-5218 - Sine-Square Audio Generator - (See also IG-18MOD for modifications)
- IG-5240 - Color Generator - Thanks to K5OFC
- IG-5280 - RF Oscillator - Thanks to K6QKL
- IM-1 - Intermodulation Analyzer - Thanks to VE3VBU
- IM-10 - VTVM - Thanks to VE1NU
- IM-11 - VTVM - Thanks to VE1NU
- IM-12 - Harmonic Distortion Meter - Thanks to VE3VBU
- IM-13 - Service Bench VTVM - Thanks to Jerry
- IM-16 - Solid-State Voltmeter - Thanks to VE3VBU
- IM-17 - Utility Solid State Voltmeter - Thanks to Gary
- IM-18 - VTVM - Thanks to KB9JJA
- IM-21 - AC VTVM - Thanks to VE1NU
- IM-104 - Solid-State VOM - Thanks to VE3VBU
- IM-1202 - Digital Mulitimeter - Thanks to VE3VBU
- IM-2410 - Frequency Counter - Thanks to CT1CH
- IM-4100 / SM-4100 / S-1357A - Frequency Counter - Thanks to Louis
- IM-4190 - Bidirectional RF Wattmeter - Thanks to KB9JJA
- IM-5238 - AC Voltmeter
- IN-11 - Decade Resistance Box - Thanks to Dale
- IN-21 - Decade Capacitance Box - Thanks to Dale
- IN-17 - Decade Resitance Unit - Thanks to Gary
- IO-10 - Oscilloscope
- IO-12 - Laboratory Oscilloscope - Thanks to VE1NU
- IO-20 - Ignition Analyzer - Thanks to Bob Huish
- IO-102 - Oscilloscope - Thanks to VE3VBU
- IO-103 - 5" Triggered Sweep Oscilloscope - Thanks to Gary
- IO-4105 - 5Mhz Single Trace Oscilloscope
- IO-4205 - 5Mhz Dual Trace Oscilloscope - Thanks to Mike
- IO-4550 - Dual Trace Oscilloscope - Thanks to VE3VBU
- IP-12 - Battery Eliminator
- IP-18 - 1-15V DC Regulated Power Supply - Thanks to Gary and LA8AK
- IP-20 - Transistorized Regulated Power Supply - Thanks to Gary
- IP-27 - Regulated L.V. Power Supply - Thanks to LA8AK
- IP-28 - 1-30V DC Regulated Power Supply - Thanks to Gary
- IP-32 - HV Power Supply - Thanks to KC2HAE
- IP-2700 - 0-60 VDC, 0-1.5 A Power Supply
- IP-2710 - 0-30 VDC, 0-3 A Power Supply
- IP-2718 - Triple Power Supply - Thanks to K5OFC
- IP-2720 - 0-15 VDC, 0-5 A Power Supply
- IP-2728 - 1-15 VDC Regulated Power Supply - Thanks to VE3VBU
- IP-2730 - 0-7.5 VDC, 0-10 A Power Supply
- IPA-5280 - AC Power Supply- Thanks to James
- IT-1 - Isolation Transformer
- IT-10 - Transistor-Diode Checker - Thanks to K6QKL
- IT-12 - Signal Tracer
- IT-28 - Capacitor Checker - Thanks to VE1NU
- IT-1121 - Semiconductor Curve Tracer - Thanks to Bob Huish
- IT-3121 - Semiconductor Curve Tracer - Thanks to VE3VBU
- LG-1 - Laboratory RF Generator - Thanks to G8VR
- M-1 - Handitester
- MI-18 - Tachometer - Thanks to Gary
- MI-25 - Fuel Vapor Detector - Thanks to K1ZOK
- MI-29 - Fish Spotter/Depth Sounter - Thanks to Ken
- MI-31A - Electronic Tachometer - Thanks to Gary
- MM-1 - Multimeter
- MR-1 - Mobile Receiver
- MR-21 - "Mariner" Radio Direction Finder
- MT-1 - "Cheyenne" Mobile Transmitter
- NE-2112 - "Heat Sniffer" - Thanks to Mike
- O-9 - Oscilloscope
- O-11 - Oscilloscope - Thanks to G8VR
- OM-2 - Oscilloscope - Thanks to G8VR
- OM-3 - Oscilloscope - Thanks to VE3VBU
- OP-1 - Professional Oscilloscope - Thanks to Daniel
- OS-1 - General Purpose Oscilloscope - Radio Constructor Reprint August 1960
- OS-12 - Oscilloscope
- PK-1 - Universal Scope Probe - Thanks to Gary
- PKW-2 - Scope Probe - Thanks to Dale
- PK-3 - RF Probe - Thanks to Gary
- PK-3A - RF Probe - Thanks to Gary
- PKW-101 - Oscilloscope Probe - Thanks to Gary
- PM-2 - Mobile Meter - Thanks to Larry
- PS-3 - HV Regulated Power Supply - Thanks to G8VR
- PS-4 - HV Regulated Power Supply
- PT-1 - Professional AM-FM Stereo Tuner - Thanks to CT1CH
- QF-1 - Q-Multiplier - Thanks to WD8BDR
- QM-1 - Q-Meter - Thanks to LA8AK
- RC-1 - Radiation Counter - Thanks to G8VR
- RF-1U - RF Signal Generator - Thanks to G3OTH
- RG-1 - General Coverage Receiver - Thanks to Richard
- RP-1 - Record Player
- RX-1 - "Mohawk" Amateur Communications Receiver - Thanks to VE7AEC
- S-2 - Electronic Switch
- S-3 - Electronic Switch for oscilloscope - Thanks to G8VR
- S-88 - Stereo Amplifier
- S-1357A - Frequency Counter - (Same as IM-4100)
- SA-2 - Stereo Integrated Audio Amplifier
- SB-10 - SSB Adaptor - Thanks to WA1LGQ
- SB-100 - SSB Transceiver - Thanks to K1ZOK
- SB-101 - Transceiver - Thanks to G3OTH
- SB-102 - SSB Transceiver - Thanks to LA8AK
- SB-104A - SSB Transceiver - Thanks to K5BCQ
- SB-200 - Linear Amplifier - Thanks to LA8AK
- SB-220 - 2KW Linear Amplifier - Thanks to LA8AK
- SB-230 - Linear Amplifier - Thanks to K9AM
- SB-300 - SSB Amateur Receiver - Thanks to LA8AK
- SB-301 - SSB Amateur Receiver - Thanks to G3OTH
- SB-303 - Solid-State SSB Reciever - Thanks to KC2HAE
- SB-401 - Transmitter - Thanks to LA8AK
- SB-610 - Monitor Scope - Thanks to G3OTH
- SB-620 - Scanalyzer - Thanks to G3OTH and LA8AK
- SB-630 - Station Console
- SB-644 - Remote VFO - Thanks to CT1CH
- SB-1000 - Linear Amplifier - Thanks to G0OIL
- SG-8 - RF Signal Generator
- SM-4100 - Frequency Counter - (Same as IM-4100)
- SO-4105 - 5Mhz Single Trace Oscilloscope - (Same as IO-4105)
- SP-2 - Audio Pre-Amplifier
- SQ-1 - Square Wave Generator
- T-2 - Signal Tracer
- T-3 - Visual-Aural Signal Tracer
- TA-16 - Amplifier - Thanks to Dave Owens
- TA-17 - Solid-State Combo Amplifier - Thanks to VE3VBU
- TC-2 - Tube Checker
- TD-17 - Solid-State Metronome - Thanks to K1ZOK
- TS-2 - TV RF Signal Generator
- TS-3 - TV Signal Generator
- TT-1 - Tube Tester - Thanks to KC2HAE
- UA-1 - 12 Watt Audio Power Amp
- UT-1 - Utility Power Supply - Thanks to K1ZOK
- UXR-1 - Transistor Radio
- UXR-2 - "Oxford" Transistor Radio
- V-4 - VTVM - Thanks to N7CKJ
- V-4A - VTVM - Thanks to N7CKJ
- V-5 - VTVM
- V-6 - VTVM
- V-7A - VTVM - Thanks to W1ATV
- VC-2 - Voltage Calibrator
- VF-1 - VFO - Thanks to KB9JJA
- VF-2031 - Hand-Held 2-Meter Transceiver - Thanks to K1ZOK
- VT-1 - Vibrator Tester
- VX-1 - Voice Control - Thanks to G8VR
- W-2 - Mono Audio Power Amp
- W-3AM - Audio Power Amp
- W-4AM - Audio Power Amp
- W-5M - Audio Power Amp
- W-6A - 70W Audio Power Amp
- W-6M - 70W Audio Amplifier - Thanks to G8VR
- W-7M - 55W Audio Power Amp - Thanks to http://www.triodeel.com/
- WA-P1 - Preamplifier
- WA-P2 - Audio Preamplifier - Thanks to G8VR
- XO-1 - Electronic Crossover - Audio Amateur Reprint
- XR-2 - Transistor Radio
- Radcom-All - Technical index mainly Radio Communications - Thanks to LA8AK
- Radcom-Heath - Heath technical index from Radio Communications - Thanks to LA8AK
- IF - Intermediate Frequency List - Thanks to LA8AK
- Ham Radio Magazine - Online cumulative index : 1968 - 1990 - Thanks to VE3WGX
- Ham Radio Magazine - Commercial equipment (including Heath) - Thanks to VE3WGX
- Vintage Radio Repair and Restoration - Heathkit AG-9U AF Signal Generator repair
IG-18 Rebuild by Reginald Williamson Reproduced with kind permission of The Audio Amateur Corporation
Copyright © 1970 by Edward T. Dell Jr.
Copyright © 1970 by Edward T. Dell Jr.
- IG-18 Mod - © 1970 by Edward T. Dell Jr. - Thanks to The Audio Amateur
- Boat Anchors site BAMA - A good selection of Heathkit manuals and a good site for boat anchor manuals generally
- Mirror of the BAMA site - A mirror of the FTP server of the above site which allows more connections
- Heathkit Page - Heathkit manuals/components for sale and a useful parts cross reference list
- Heathkit Virtual Museum - Photos, specifications and descriptions of a range of Heathkit equipment
- Bill Wilkinson's Heath Company Page - by an ex-Heath technician and includes a selection of useful hints and tips
- The Heathkit Shop
- Heathkit Educational Systems - Heathkit still offer a service to previous Heathkit owners and are also still a source for most Heathkit schematics. The cost is $20 US, a full manual is $25 US
The Heathkit schematics on this page are copyright © Heathkit and cannot be commercially reproduced.
Website copyright © 2005-2007 Paul Stenning.
Website copyright © 2005-2007 Paul Stenning.