On May 5, 2017 at 01:42, FreddyFreeloader said...
Sorry Ernie what was I thinking? Mine is a Audio Technica AT-LP60. His is a U-Turn Orbit. I have tried with short cables. I have tried with alligator clip lead from the metal tone arm to RCA output ground. It lessened the hum but still not passable.
Built-in phono->line level preamp I suppose. They say internally grounded but there isn't very much metal in the whole thing
Great idea on the headphones buzz. Ed sorry I'm not sure what you mean by transformers.
Connecting the tonearm to the RCA ground isn't 'grounding' the turntable, it's making those two equipotential. grounding is connecting the cartridge's negative wires too the electrical ground of the building.
Since you should have a ground wire at the head end, try connecting the RCA ground to the chassis of the preamp/AVR.
I have mentioned using a small amplified speaker from Radio Shack- RS is dead, but Parts Express should have something and a headphone amplifier is a good substitute but it should be battery-powered.
