Originally Posted By: DWallach
One more theory for Tony's 60Hz hum: fluorescent bulb transformers, including CFL bulbs. I'm slowly but surely banishing these things from my house, but of the remaining ones, some of them buzz.


Indeed. I have already banished them for the most part, except in a couple of cases, but when I was hunting for the hum, I turned off all lights of all kind and still the hum was there.
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Tony Fabris