Keith G wrote:

Which may take a while, he has 'wellness issues' and goes offline from time
to time. It sounds to me like he's got a bit of rampant voltage somewhere
and I'm wondering what's happening with the power supply....???

But nothing he suggests goes to the power-supply, not based on glowing
tubes and pops... that sounds more like a cold solder, short, shorted
tube or similar mechanical/electrical problem vs. an electronic
problem.

We need to know MORE to have a hope of being helpful.

Peter Wieck
Wyncote, PA