I'm still searching through my little archive file because I remmember a schematic for that table that supposedly enabled the platter speed to be more stable. The two things I have that could help is a shematic from Hi Fi World that while is pretty complete it is also pretty complicated. And I took the PS out of my Ariston. It is a circuit built on a perfboard with a nice regulation scheme. I am trying to devise a parts list. The Q-Deck is a good quality table in terms of the speed specs so maybe that can be improved and retro-fitted to one of the AR's.