Quote:
Originally Posted by old_tv_nut
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3) Chase the hum bars...
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What do you mean by this?
Quote:
Originally Posted by old_tv_nut
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To make sure I'm following right, does the cathode of VT6a (pin 3) go to pin #6 of plug P7 and hence to R201?
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Yes
Quote:
Originally Posted by old_tv_nut
By the way, where are you getting the 12 V supply for the amplifier? Any hum, noise or instability of the supply will transfer directly to the output on the collector.
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This is a good point. I can try various power supplies to see if the problem goes away/changes with another supply. I'll take a few home tonight and experiment.
12-23-2016, 10:48 AM
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