Hi. I've been following this circle for a while. In fact, I'm now the proud owner of a T-8 with a 260EX on its way (Thanks, Frank!). You, the knowledgeable fans of AVA, helped make it an easy decision for me.
My issue isn't related to the AVA gear at all. I decided to get my turntable out of retirement since my T-8 has such a lovely phono section. Unfortunately, I get radio frequency interference (a problem compounded by the fact that it happens to be Pittsburgh's urban music station -- not my musical preference).
The problem is not in the pre-amp. No RFI when the turntable is unplugged and no RFI on any device other than the turntable. If I remove the cartridge from the turntable, no RFI. In fact, the RFI increases as the tone arm tracks across the record which suggests to me that the arm/cartridge are acting as some kind of antenna.
Short of buying a new turntable (a possibility, but not right now), any suggestions on how to suppress the RFI? The turntable is a Yamaha YP-D71 (one of Yamaha's best in 1979) with an Audio Technica AT15SS cartridge (again, one of the best in 1979). I just completed a Grado Longhorn conversion in case the A/T cartridge was the culprit, and the Grado does the same thing.
Thanks for your help.