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I remembered I have an old Eico Cap tester, all the caps cause a blip of the eye tube except this one, it's completely open.
Probably lucky only one was bad, who knows how high the voltage might have gone if both of them opened up.
I also don't know what took this set out of service, possibly the bad solder on the Horiz Driver transistor caused it to lose high voltage first, then when I fixed that the open cap (went bad while sitting perhaps?) blew out the Tripler?
I suspect this because the Tripler wasn't arcing at first, it wasn't until I soldered the Osc board that it started arcing.
On the other had the Tripler had a pretty large crack in it, more than I think it would have had in the breif time I ran it while arcing, so possibly that it had failed first because of the bad cap and the Osc board might have failed during storage.
It was rather fortunate it had no Oscillator because they no doubt plugged it in at the thrift before I got it, they might have run it long enough to do serious damage if it had fired up.
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