On 25-Nov-2005, "buffalobill" wrote:

to eliminate worry try plugging your appliance into a portable GFI and
then connect the cable. if the appliance continues to operate without
tripping the GFI, half your worries are over.

If you have a non-polarized two-prong plug on the power cable, first
try reversing it. That may provide proper grounding. I've seen this
kind of grounding problem with older audio equipment. I've never
found out why, but know that unless all the related audio gear is
plugged in with the same plug orientation, you get current leakage.

Mike