Replies to This Discussion

Permalink Reply by David L. on November 26, 2018 at 2:25am

The track the wiper moves over to give the variable resistance in a pot can get oxidised and dust on it.  This could be the cause of the crackes on turning the pot knobs.  You can buy an electronic contact cleaner to remove this - it comes as an aerosol (mine had a small tube for better aim) and you squirt a bit in the gap between the shaft and the bit that rotates.  Have a look online for your local version.  One aerosol lasts years.

Permalink Reply by Don Tucker on November 26, 2018 at 11:12am

This seems to be a fairly common problem with the cheap Chinese pots most of us (and I'm assuming you as well)  buy online. Spraying as David L. suggests will probably fix this but if it bothers you maybe it's worth spending a bit more for quality pots on future builds.

Permalink Reply by Arthur Payne on November 26, 2018 at 7:53pm

Thanks for those suggestions.  I'll try the spray but I think Don's comment re price and quality is right.   Next one I'll go upmarket.

Art

Permalink Reply by KOOL DOG HOOCH on September 21, 2019 at 10:48pm

When you spray inside the pot, work the knob vigorously to help seat the sweep arm into the resistance material( whether it be wire wound or carbon material) the crackle is produced by the slightest uneven surface. Dirt usually from unclean assembly area is the main culprit. When you spray be careful it can ruin paint jobs, if you can take them out you should!