In article ,
Brian Gaff wrote:
Yes indeed, I was put of many moons ago from buying a Lecson system, you
remember the coloured sliders pre amp and the cylindrical power amp, as
touching the outside of the power amp while leaning on the radiator
gave me one heck of a belt. I did not enquire as to quite why this
happened but it seemed a trifle dodgy to me! Brian

You can get a small potential difference between earths grounded at a
common point when you measure well away from that point. Which is the
principle of equipotential bonding in a bathroom. But a large one means
something somewhere isn't right.

--
*Filthy stinking rich -- well, two out of three ain't bad

Dave Plowman London SW
To e-mail, change noise into sound.