Hello --

I've looked a bit for a nice R-390A to go with my National HRO 60 and
Hammarlund SP-600. A local audio shop clearing an old warehouse has offered
me a combo of a Stewart Warner-built R-390A (Serial Number 27) and TMC
(Technical Material Corporation) CV-657A (BuShips) SSB adapter they are
clearing from an old warehouse. Both units light up, but I hear only noise
on the headphones -- I can't tune in even local BC stations. Both units
appear to be complete --covers in place, correct knobs -- and in fair to
good cosmetic condition. They also have a EAC R-390A in much worse condition
they might throw in.

I would appreciate any thoughts on their value, and a possible source of
information about the TMC SSB unit. I remember seeing a bit of TMC gear back
in the 50's, but haven't seen any advertisements for them dating after the
60's.

Thanks for any help -- Mitch
(Not a ham, just an old SWL geezer who loves boatanchors.)