05-03-2017, 08:11 AM
They renumbered resistors in your sch. I went by the Riders. They also show 50L6 i/o 50A5 output.
Anyways.
The easiest way is to simply change the tube.
If tested, warm it up till hot and then failing and immediately transfer it in the pre-warmed and pre-set for this tube tester, and try to test immediately, see how it tests. Also test for gas if possible.
As for the 220 and 1200 ohm resistors, test them with a meter in-ciruit, then turn on and measure voltages while playing. Then measure them when it fails. See if any of the three voltages (on the three electrolytic caps' plusses) droop.
Anyways.
The easiest way is to simply change the tube.
If tested, warm it up till hot and then failing and immediately transfer it in the pre-warmed and pre-set for this tube tester, and try to test immediately, see how it tests. Also test for gas if possible.
As for the 220 and 1200 ohm resistors, test them with a meter in-ciruit, then turn on and measure voltages while playing. Then measure them when it fails. See if any of the three voltages (on the three electrolytic caps' plusses) droop.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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