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Old 12-15-2015, 08:00 AM
old_coot88 old_coot88 is offline
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Join Date: Sep 2009
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Quote:
Originally Posted by Kamakiri View Post
With the 6BG6 pulled, I'm at 48.9 VDC. Can't see any hot plating.....
Holy makrel! That's over 10 watts. Try pulling the damper, and then the rest of the tubes one at a time, starting with the audio output, while watching the voltage across R127B. If the voltage stays up, it'll prove there's not a tube overconducting.

To save brutalizing R127B while troubleshooting, you could sub it with a couple of 100 ohm 10 watt resistors in series if you happen to have such.

Last edited by old_coot88; 12-15-2015 at 08:11 AM.
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