Quote:
Originally Posted by Radio Tech
....and some of the coupling and de-coupling capacitors.
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Yes, change ALL the paper dielectric capacitors. They will all be leaky to a greater or lesser degree. Leaky decouples can alter the DC conditions on valves causing various symptoms and the AGC function can also be defeated by leaky capacitors.
I always change all the paper capacitors in a set and they always test leaky at their working voltage.