Re: which tubes to get at hamfest?
"The RCA tube manual is reprinted by Antique Electronic Supply and was
reasonable in cost (~$7.00 if I remember). It has all the specs and
operating conditions for the tubes you mention and many more. There is
a lot of information on tube mounting, use and design considerations, as
well as a few circuits that could be used to drive a TC.
The size, shape, and construction of tubes is a good indication of what
use they were designed for.
Isn't that just the RECEIVING tube manual? ARRL handbook of 1950's
vintage would be better bet, I think. I have all ARRL handbooks and
also RCA transmitting tube handbook here.