As odd as it will sound, Tucson TV (something like that) in the shopping center at 4500 E Speedway would be worth asking. THey are obvioulsy not a high-end shop, but they fixed (an easy problem with) my Halfer Transnova amp and also fixed a wiring/shorting problem with my old Thorens turntable/arm. You could at least ask them--he'll give you an honest answer. Good luck! (I have no interest/etc in Tucson TV, just my experience with them).
