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The KWM-2 / KWM-2A Schematics shipping soon!

We have some exciting news. After some long nights, we have finally put together the Collins KWM-2 / KWM-2A Big Schematic diagrams! There are 2 versions, the standard version and the fully annotated Color versions. As you might know, this is one of the most complex S-Line schematics ever produced by Collins and it is very tough to follow. We have placed all 4 sections on a single sheet making reading much more reasonable. Our full color version carefully outlines all of the critical signal paths to make reading and following signal paths for troubleshooting much easier.

Take a look at the images on our home page to see a sample of the full color version of the KWM-2 / KWM-2A model.

Soon, we will be introducing a 48″ wide fully color annotated and laminated diagram that allows you to use an expo marker or grease pencil to mark-up and erase your comments.

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New addition! – Collins KWS-1 diagram and KWS-1 Power Supply and Connections

Today we have added the full KWS-1 diagram and KWS-1 Power Supply and Connections diagram covering the low voltage, bias, and high voltage sections along with the connection information and terminal pinout information. The standard KWS-1 diagram is 11 inches tall and 37 inches wide. The Double sized version is 22 inches tall by 74¬†inches wide. The KWS-1 Power Supply and Connections Standard diagram is 11″ tall by 33 inches wide and the Double size version is 24 inches by 66 inches.

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BIG Schematics for most Collins radios and Test Equipment!

Schematics in Service Manuals are too small!!

Our service will combine multiple page schematics into a BIG single page schematic that you can follow easily & work within YOUR comfort level. We are now also able to offer full color schematics that use common symbols, colors, and helpers to make reading your schematics easier than ever to read. Contact us to request your favorite manual or schematic blown up or search through our site to see our offering for collector Collins Radio Schematics and more. In the future, we will be offering schematics for Test Equipment, Aircraft Schematics, and many other radio brands and types. You can send tyour request to and if the diagram is available, we can print it!

For this to be successful, we need to have access to the diagrams. Many are available via the WEB but some are not. We can deliver your schematic in up to 40″ tall by whatever length is required and plotted on various materials.