Crosley 9-403M Restoration

[Phil Nelson]

Originally Posted by Crist Rigott

Seeing it is a Dumont based design, should it be a good playing tv?

A later Crosley model, the 9-407, was a clone of the DuMont RA-103. Your 9-403 uses a continuous tuner a la DuMont, but the chassis layout is quite different than the RA-103. And the immediately preceding DuMont model (RA-102) was very, very different from this Crosley chassis (and the RA-103), so no obvious kinship there.

Was it DuMont-based? Maybe comparing schematics would tell you. Since Crosley eventually used a DuMont clone chassis, the two companies might have had some kind of earlier licensing or technology exchange agreement, short of full cloning.

As for replacing the gimmicks with mica caps, why replace them at all? They are just pieces of wire. What could go wrong with them?

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html