Shelbern tube record player (RST 74)

Is it record player only, or also a broadcast band radio? If the later, it looks like Shelbern did a lot of AA5 chassis and any AA5 schematic might serve as a guide. Not much help, I know.

@retiredbitshifter Yes it is a radio as well. Ill look for the AA5 schematic and do a comparison.  Thanks for the tip.

@jakenl Welcome, assuming no one has tampered with it much, you should be able to go through and recap one by one. Check resistors and replace as necessary. While it does help to have schematics, they aren’t always available more times than not.

@radtekman Yes it seems to be stock.  That’s what I’ve been doing so far. Testing component by component. Filter caps were gone. All the carbon comp resistors have drifted high..  There are three caps labeled SEC CP-A 0.047(M)600. Brown Plastic with white ends. They are bypass caps from where they are in the circuit.  Still researching those.. I have orange drop caps will that be a suitable substitute?

First I have to get an isolation transformer because it has transformerless power with a selenium rectifier… Still researching that one too.

I have built a few guitar amps so the ISO will be handy for that as well.

@jakenl Yes the ISO is always a good idea either way. As long as you don’t under rate what came out, any part should do fine. 0.047 with over 600 volt (I assume that is voltage) of the appropriate style would do the job.