Quote:
Originally Posted by Electronic M
I see a spark gap on the yoke. Could that be sparking over for part of the scan throwing off the linearity etc?
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I think any sparking would produce an erratic tearing as it changed from line to line. This is some sort of ringing in the sawtooth sweep. That's why I suspect one of the caps that is supposed to tie one end of the deflection coil to a constant DC may be open.