In article ,
Richard Markham wrote:
I have a Pink Triangle record deck with a Rega RB300 arm and Rega
cartridge.

I noticed in the past that there was mains pickup when the arm gets too
near the motor - i.e. nearer to the centre of the record.

Now I have mounted the deck above my CD player, it's picking up hum from
there also.

Can I fix this with some earthing arrangement, or does the deck just
have to be away from any other mains device?

The Amp has an earth stud, but the deck doesn't have one. The deck uses
an outboard PSU for the motor drive.

It usually depends on the type of cartridge - some are much more
susceptible to hum pickup than others. MC types tend to be the best

--
*Geeks shall inherit the earth *

Dave Plowman London SW 12
RIP Acorn