Bdgregory...BINGO! Same problem with a Grado on a Linn LP-12. Actually, even at the innermost grooves, the hum was not really annoying...and I'm pretty picky!
Vintage Problem
Confused about this...Recently had a mint Scott 340 tube receiver restored and found a Fairchild 412 turntable and a NOS Fairchild 500 tonearm. This is a system I first had in the early 60's. I'm using a Shure 44E cartridge. Problem is I have a hum using the phono input only when I place the arm on a disc. The tomearm has a four prong plug-in cable and no separate ground wire. When I use another table, an Acoustic Research which has a ground wire, there is no hum. Should I try to ground the chassis/motor of the Fairchild table to the ground screw on the receiver? If anyone has an idea I would love to hear from you......