In article ,
Chris Isbell wrote:
On Fri, 26 Jun 2009 12:23:17 GMT, (Don Pearce) wrote:

Well, my amplifier certainly ash an earth connection (and so does my
PC, hence the isolating line transformer for the sound card). But all
the auxiliary stuff has mains plugs with a plastic earth pin. They
have kite marks, so I presume they are legal.

Could you possibly provide details of the isolating line transformer,
please? (My work laptop is eathed and causes some 'interesting' noises
when mains powered.)

I bought a tray of 'GPO' spec ones off Ebay - designed to isolate a modem
from the phone line. The spec isn't brilliant - but they actually sound ok
for most things. Certainly better than the 300 - 3000 Hz you'd expect for
phone use. If you'd like a couple, mail me.

--
*The fact that no one understands you doesn't mean you're an artist

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