TD3 potentiometer specs? Faulty Resonance knob


Hi! Can anyone advise? My TD3 resonance knob needs replacing, it's out of warranty.

Does anybody know what part nunber it is, or where i can find it? The potentiometer

When turning quickly, it makes a loud crackling sound. Less bad if turned very slowly. A spray of contact cleaner helps fix the problem for about 15 minutes, then the crackle returns. 


Thanks in advance!