🚀 go-pugleaf

Bridge <bridgeband@bluewin.ch> wrote:

> I've been trying to get a better feeling for sound by connecting my G3
> to my HiFi setup. As soon as I connect the cable to the jack at the back
> of the computer I get a humming noise through my hifi-speakers.

If it's a low-pitched hum, congratulations!  You have an earth loop!
(probably)  What I mean is that the earth connection (computer, to
hi-fi, to mains wiring, back to computer) forms a closed loop, which is
wonderful for having currents induced in it.

One simple cure is to open up the connectors at one end of the signal
lead used to connect the two bits of kit, and cut the earth connection.
I guarantee nothing; it probably won't bite the head off your cat if you
do this.

The only way to find out which end is best to cut is to try it both
ways.

[snip]

Rowland.

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