Hum aint fun


With TT platter spinning, tonearm in its cradle, there is an audible hum through the speakers. When arm is moved over the record on the platter the hum just about goes away. Hum is non existent when stylus is on the record. What gives??
fromunda
Do you have built-in or separate phonostage?
What tonearm?
If you have separate ground wire on your tonearm, try to connect it to a different chassis other than phonostage...
If you don't have a ground wire from the metal (if metal) turntable chassis, try one from it to the preamp phono ground.