02-13-2025, 04:04 PM
I'm going to get back into it tonight. but I disconnected the 2 main resistors off this supply going to different parts of the unit. I'm thinking maybe a diode failed?? It checks ok on my Fluke ... but maybe breaking down when higher voltage is applied?? I have a solid 220 A/C off the PT on that side, yet only around 100v or so with no load. That's with all the caps out of the circuit. BTW, I did change all the electrolytics back with my 1st revamp, so I'll change that diode tonight and clip a fresh e cap on and see that happens. It's actually about the same setup and voltages as the B+ except it's the - supply. I'll try to get a schemo posted which I have with the ICs. It's actually 2 ICs but shown as 4 on the diagram. It's really kinda weird yet ingenious how this works!
If I could find the place called "Somewhere", I could find "Anything"
![Icon_confused Icon_confused](https://philcoradio.com/phorum/images/smilies/icon_confused.gif)
Tim
Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44