[markmokris]

I have a new question.

I replaced the two electrolytics in the power supply with 10uf 450V modern ones that I had on hand. With power on, the radio definitely has a bit of 60 cycle hum. There is no signal coming through, so maybe it is normal in the background. Not sure.

I put a scope on the plus-side of the second electrolytic. There is about 295 volts DC with about 4 V ripple peak-to-peak. Would that be enough ripple to cause what I am hearing?

Is that outside of normal?

Mark