Re: On a mission! Screened mains?
One thing to consider is that the 'mains' hum is actually being picked up via a 'mains frequency' modulated RF signal. In that case it could just as easily be the L/N wiring.
I would try an RF 'common mode' choke on the mains input, Ideally as close to the wall socket as is safe and practical, it might even work inside the turntable. Maybe try and use one of the 'all in one' IEC inlets with all the filtering built in. Avoid any old stock ones that use RIFA capasitors!
dc
|