I have fitted an extension Phono lead from my turntable to my amplifier and now have mains hum. When I touch the extension lead at the connection the hum stops. How can I stop this ?
GeoffreyW said:There should be a third, thin, wire, between the two phono cables of the TT output cable, rather like the earth wire in the grey mains cable. It should have a spade terminal fitted, for binding/securing to the Earth terminal post of the phono amp. If it's not visible readily, you may have to look closely at the TT output phono cable, between the two main wires. If you bought the TT new, then it should still be there, but if it's S/H, it may have been removed/broken off. Hope this helps.