On Wed, 24 Jan 2007 11:47:29 -0800, "Rod & Betty Jo"
Congratulations you have created a huge ground loop, what kind of
extension cord? 2 prong? or 3 prong?
If it is the 2 conductor type you are eliminating one of your ground
connections on the PC. Is any of the A/V equipment grounded?
If it were me I would eliminate all grounding at the A/V side. Cross
my finger that was the problem. Cause chasing ground loops is a PITA.
(sixoneeight) = 618
3 prong.......Oddly the bedroom circuit that doesn't cause the hum has lots
of other things on it including a electric heater....where-as the new
circuit has nothing....other old circuits misbave as well when used to test.
I also tried via a extension cord a different circuit for the
TV/VCR/Reciever and still recieved a hum
they are all two wire devices......the default circuit is "old wire" or just
a conduit grounded circut.....it is a hundred yr old house with various
stages of elec upgrades.....
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