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Slowly powered the chassis on the variac (how did I ever troubleshoot without one?!?), and only got 20 volts of B+....
Predictably, both of the caps in the doubler are almost completely open leading to very low voltage. Jumpered one of them with a new cap, and got almost full voltage and a decent looking waveform out of the horizontal oscilator!
Now the recapping begins...
That leaves me with a lingering question though: why on God's green Earth would the PO have replaced almost all the caps in this thing, only to not replace the ones that matter most? I always begin with the power supply when it comes to caps, but it appears the opposite happened here.
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Evolution...
Last edited by miniman82; 06-04-2011 at 12:13 AM.
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