Sofie schrieb:

John Nightingale:
If this is a belt drive turntable then the first place I would look is the
belt. If stretched or worn it could ride up or down on the motor pulley

That won't explain why the turntable runs faster. In case of a stretched or worn
belt the speed would decrease when the belt slips.

I often found noisy speed pots (possiply reference trims inside) causing this
effect.

- Udo