I am blown away by the amount of interest in these Victor motors. When they were selling them everyone wanted the Technics, or the Kenwood, or the Micro three arm, etc. One hearing and I knew these were special but stopped using it decades ago probably due to the really bad base and arm arrangement.
I have never had to fix mine but I will tell you it does act up if you don't use it. When I took it out to mount in the new base it took almost all day for it to figure out how to run right and that was with me coaxing it along!! I've mechanically worked on it, changed the thrust disc, lubed and polished the shaft, etc. but have not had to do anything electrical to it yet.
Someone mentioned Bill Thallman and while I don't know if he has ever worked on a TT-101 he is an electronics wiz-bang and I would trust him with mine. I have guys at the factory and I know a few engineers with the patience for this work but they are not experts on this item.
HW