RCA WR-50B AM/FM Signal Generator

[bandersen]

I recently picked up one of these to help out with my radio restorations. I downloaded the manual from BAMA. It looks all original and very clean inside





I'll replace the five paper caps and two electrolytics. I suppose I should replace the early silicon rectifiers too.
I figure a 1N4007 for the 1N3756 AC power rectifier. I'm not sure about the 1N3754 clamp diode though. Another 1N4007 ?

Then there's the varactor diode. I think it's this little device in the middle. No part# is given so I'll keep my fingers crossed that it's OK.