About 5 years ago my dad gave me his perfect Sansui 9090 DB he purchased while in the military in the late 70’s. He never let me touch it as a kid but never really ever used it either. Before he gave it to me, it sat for at least 15years without ever being turned on. It has probably been used less than 100 hours in its life. I got it from him along with the original Pioneer speakers that he purchased with it. The speakers are perfect as well. I hooked it all up and everything worked except for the volume. I only have good sound on both speakers at 1/4 and 3/4 volume. I put the amp in the shop but the pot could not be saved. I have been looking for a used volume pot for 3 years now. Any ideas how I can get this great sounding amp going again. Thanks.