When I put my ear (about 2 inches from the top)to my integrated amplifier, I can hear a faint hum from both the transformers. Can't hear anything when I move my ear away from the amp. Is this normal?
Thanks Gbart, the fact that my B&K MC Pre-amp with external power supply also had a faint hum (again when I put my ear to the power supply), does that indicate a DC presence on the AC line?
I made a DC blocker as a favor to an Audiogon member a while back. There are a could of circuits floating around the Internet. Its easy enough for anyone with decent DIY skills to accomplish, just remember you're working with electricity.
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