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I've worked just a little more on this. Got that trace cleaned up some more, and cleaned it out with a blade. Further testing shows no arcing, though I did get a slight wisp of smoke from an undetermined location on the chroma board with a waxy smell. This was with just flipping the switch on & off fairly rapidly. I don't know how safe on the chassis it is to bench test it like this-hv is disabled, of course, but this has got to put B+ too high, right?
Studying the schematic, I was eyeing the 80mfd filter cap on the 355v line. Could that cause problems like I'm having? I might have changed it out already but I don't have anything that high in value in stock (gotta place another order after Christmas) although I could parallel a 47 & 33.
(I might have played with it more but I decided I need to run each of the roundies for at least a short while, as several have not been running since early summer. Once I got the CTC-5 to straighten up and fly right I, of course, could not take my eyes off of it for the rest of the afternoon!)
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Bryan
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