[mikethedruid]

This is a site that anyone restoring an R.C.A. radio or phonograph should visit. Here you will find the service manuals that cover ALL these sets. I have downloaded ALL of these manuals and service bulletins. I'd advise anyone else interested to do the same.
https://www.americanradiohistory.com/RCA...ervice.htm

[Jake Blake]

Thanks Mike!  I needed it. 

[mikethedruid]

While you're on that site, after downloading all the RCA stuff, go to the home page, and start to browse around. There's a TON of cool information on radio history there.

[EdHolland]

+1. I found many of the old UK radio magazines which I used to enjoy, and much more besides.

[Eliot Ness]

Those RCA manuals do come in handy.  My huge G.E. J-100 cathedral uses the same chassis as an RCA R74 so those very comprehensive RCA service manuals can come in handy for many G.E. radios also.