Ihave just fitted my Thorens 850 T/T with a new motor previous one expired. I bought an origin live Ultra Motor kit it has a DC motor which i fitted in a stand off position. Now a problem with a belt it needs to be a lot longer than the old rubber belt of the Thorens AC motor. I have tried several different things Silk -Polyester sewing thread-Audio Tape now i have settled on a materal that is used for threading pearls. It is very strong looks like a type of nylon not easy to knot but sounds good . One thing i can say for sure the DC Motor makes a big difference.I have a SME 309 arm Micro Grove Plus Phono Wharfedale Opus3 Speakers Speakers and T/T all sitting on Vibrapods and Cones I am using a Benz Glider L Cart. Noel W.