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Re: help with ella hum

Get a 3 to 5X magnifier and look for solder bridge from hot to neutral of the RCA jacks. Also wiggle and twist the hot pins; if they can rotate in the barrel, they're toast. Excessive heat will do that.
Check that the speaker output leads are tight to the terminals.
The original "tiny bit of hum" may also be from the grounds on the power supply board.


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