This is the 1978 Revision of the Collins KWM-2 / KWM-2A Transceiver. This is a very complex diagram and quite large at 12 inches high x about 10 feet long. The Double size version is 24″ high x 20 feet. Those of you who work on this complex radio are aware of the difficulty tracing signal paths because the diagram was originally laid out in 4 sections but, put side by side, the signal paths don’t match. We have made this much easier to read.
This is the full COLOR Annotated version, outlining all critical signal paths in different colors and patterns. You can easily see all critical signal paths based on overlay colors. As a result, the standard size version is 12 inches high and almost 10 feet wide. The Double size version covers a width of 20 feet!