That Web site that Steve Malikoff referred to is an excellent source of
schematics and descriptions of various military radio equipment. There
are several other great resources on the Net devoted to military and other
vintage communications equipment.
There is also a mailing list called BOATANCHORS-LIST that deals in all
kinds of vintage amateur, commercial and military radio equipment but it
is highly technical in nature.
73,
Michael Crestohl, KH6KD/W1
mc@shore.net