how good is this DuMont TV/Stereo?

[Hexar]

Thanks radiotvnut for the replies!

[Hexar]

Originally Posted by wa2ise

Can't quite see, but it looks like they used a power transformer as an isolation transformer to run the tuner/amp.

here are clearer schematic. I split it into 4, I hope it is easier to read.

[Chad Hauris]

That's interesting, I never saw such a large unit with single 50EH5 output tubes. My Dumont chassis may have been a higher-end unit. I have seen a small Catalina radio-phono console made by Arvin with single 25F5 tubes per channel for outputs.

On an RCA Lyceum TV B/W 22" table model I have, it uses the standard RCA portable B/W series string chassis with an isolation transformer for safety with external video/audio inputs/outputs and the metal case. Also I have an Airline multiplex adaptor which has a series string chassis but uses the isolation transformer as well for safety with the external connections.

[bgadow]

The TV chassis is an RCA clone (in other words, based very closely on the then current RCA design, probably built under license.) It was not long after this that Emerson/DuMont came out with their own unique chassis. I own one of those, and all in all I'd say the chassis you have is probably the more durable of the two. I used to have an Emerson console stereo built in '67 and it had a tube chassis.