[Adam]

I decided to fix this unit before the Philco. The bad coupling cap was actually one of those little 5uF ones in-between the two AF Amp transistors.

For now I'm thinking I'm just going to recap all the electrolytics under the chassis, but not the 1000 and 500/500/100 big chassis-mounted cans used in the power supply. I'm not into stuffing cans, and I don't want to reroute wires under the chassis if I don't have to. They seem OK, I looked at the power supply on the scope and the -44V source, the largest one, and it reads only about 0.15V p-p of ripple. And while that AC-line hum from bad filter caps in the power supply has been a problem in nearly every tube radio I've ever had, it just doesn't seem to be nearly such a common issue with solid state radios (or TVs).