As the original set had a transformerless power supply, the platter ground was probably floating, that is, not connected to the amplifier“s B-. Maybe only thru a 0,05 microfarad condenser in parallel with some high value resistor.
Do you hear the hum always, or only while the turntable“s motor is running?
I hear the hum all the time, but it's worse when the turntable is turned on.
11-15-2021, 03:24 PM
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