Heathkit Schematic Diagram Archive 

This webpage will be getting a long-overdue update with more schematics and data, and a more modern appearance, hopefully by the end of March 2013.

This will include all the data people have kindly sent me over the last few years. Thank you to all who have contributed and sorry for taking so long to use your contributions.

I am also planning a system allowing contributors to upload schematics and data directly to the website, which will be available for others to download after approval.

Watch this space... :)

This webpage is an archive copy of one that used to be at http://www.circuitarchive.co.uk/heath.htm. This page has been reassembled from my copy (saved when the site was live) together with files retrieved from http://web.archive.org and other resources. Many of the files here are just schematic diagrams but some include additionai information such as specifications, and a few are complete manuals.

Please DO NOT contact me asking for circuit diagrams that are not listed, for better quality diagrams, or for help with Heathkit equipment. Everything I have is on this page, so any such emails will be ignored. However if you have further diagrams or information to add please email - paul (at) vintage-radio (dot) info

Due to several people trying to aggressively download the entire site in a manner that shows no regard for other users, I have now implemented a download system that requires a displayed code to be entered into a box before you can download each file. I apologise for any inconvenience this causes.

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 added
11th 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

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

Schematics

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Modifications

IG-18 Rebuild by Reginald Williamson
Reproduced with kind permission of The Audio Amateur Corporation
Copyright © 1970 by Edward T. Dell Jr.

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The Heathkit schematics on this page are copyright © Heathkit and cannot be commercially reproduced.
Website copyright © 2005-2007 Paul Stenning.