I'm in need of servicing an old stereo receiver...a Sansui 8080db, ca. 1975. The radio portion doesn't seem to work at all. I've cleaned it up, and am replacing the lamps, and have cleaned the pots and everything. But the radio completely on the fritz is getting out of my comfort zone. Does anyone know of a good/trusted technician for these sorts of things? Preferably in Houston, but I suppose it can be shipped if I have to (I'm trying not to, as it weighs like 60 lbs).