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Broken trace. Fixed with a jumper. Waveform looks perfect but, I'm only at around 13KC not 15.75 and I can't get the horizontal dialed in. Vertical locks and is fine. Distorted and wild messed up crosshatch off my generator. Three adjustments in the horizontal circuit...width, waveform and horizontal hold. Maybe the oscillator is weak. I'll test it.
EDIT: Looking at the caps in the horizontal. There are 3 mica caps, 2 at 1000pf (C99 C100) and one at 330pf (C98). I didn't replace any of these but someone did replace C99 with a 5% cap but not a mica...at least not that I can tell. It It's a rectangular cap like one of those safety caps and says CD Type Made in USA 5 Amps on the top...5% and "D" printed in quotes on the face. There's more including the uF but there's a bunch of crap in front of it and I can't see it. Definitely not what's depicted in the photo of the board in the Sams.
Last edited by Chris K; 07-09-2025 at 08:43 PM.
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07-09-2025, 08:16 PM
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