Induction motors that lack torque can usually be traced to an open field coil or an open armature loop. A shorted turn will eat torque but the motor will let you know by getting hot. How about a photo of the motor? Most good motor shops can fix anything from fractional horsepower to 100 HP. Do you know of a fan collector in your area? I have repaired fan motors that lost power and have the same symptoms of your phonograph. These things are not rocket science.
Best wishes, Al _______________________________________________ Phono-L mailing list http://phono-l.org
