earth loop problem
"Eiron"
A modern laptop in the UK has an earthed chassis.
A five year old laptop doesn't, and if you connect it to
a bunch of old unearthed kit such as an AV amp also connected to
a CRT TV, DVD player, satellite receiver and VCR, all legal and
working as designed, the combined leakage is quite enough to float
the common ground and exposed metal at 100v or so; good for a tingle
when you connect anything. :-)
** So TV antennas and satellite dishes in the UK are not grounded by law?
They are here in Aussie.
Means TV installations are grounded soon as you plug the antenna in.
....... Phil
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