I picked up an old turntable at a garage sale. It has scant markings, but is pressboard with faux wood paneling and has "model 0978" on the bottom. Mechanically it seems to be in good condition and I ...

You've just connected your system and there's a buzz or hum that won't go away. You're running your gear through power conditioners and you're beating your head against the wall trying to figure out ...