Quote:
Originally Posted by TonyDuell
As a very quick test, with the set unplugged from the mains and the AZ31 removed, measure the following resistances with your meter
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Between pin 4 and pin 6 of the AZ31 holder (this is the resistance of the HT secondary winding of the transformer)
391 ohms
Between chassis and pin 4 of the AZ31 holder (this is half of the HT secondary winding in series with the bias resistor network)
INFINITE RESISTANCE
Between chassis and pin 6 of the AZ31 holder (ditto, with the other half of the HT secondary).
INFINITE RESISTANCE