Quote:
Originally Posted by Electronic M
Are you measuring 2 to ground and 8 to ground, or measuring 2 to 8 ( 2 to 8 ain't helpful)?
Either 2 or 8 should have a choke(in series with B+) or B+ line connected to it... unsolder the B+ line or choke and check 2 and or 8 to ground resistance. If the resistance is much higher than before then you have confirmed the rect and transformer are good. You'll then have to disconnect splits on the B+ line from the main line and check b+ to ground resistance till you find the point that has the short.
Most B+ shorts happen in ways that make visually identifying the issue impossible. You gotta rely on instruments, logic guided by the schematic.
It is not impossible for paper caps to dead short and for that to effect the B+... usually there is a power resistor in series that smokes out first, but not all sets are wired the same.
If I had it on my bench I could probably isolate the short in 30 min.
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I was measuring pin two to ground and pin 8 to ground, and those were the measurements I got, 26 ohms on pin 2 measuring to ground and pin 8 measuring to ground.
And as far as a paper cap being responsible for this goes, there are over 50 capacitors in there I'll have to check individually which will take me a while to test each and every capacitor with an ohm meter to see if the capacitor is still "good" or if it's open.