im trying to revive this old turntable of mine. its a real old technics sl-23 belt drive. i was having some problems even keeping it spinning, so i hit the switches with some contact cleaner and that helped, but now its spinning too slow. i have the speed control all the way up, but i still cant seem to get it to go fast enough. im trying to rock out pink floyd dark side of the moon, and it sounds like david gilmour is even more drugged up than normal . should i just give up and get a new one, or could it be something else? im thinking maybe the motor is bad, which i might not even be able to replace cause this baby was my dads and its probably from the early 80's, or even late 70's (the case is made of wood!). any suggestions?