Scratchy Treble Control - 65 Twin reissue

Allen Peterson · Post by **Allen Peterson** » 17 Jul 2011 5:06 am

The treble control on my twenty-year-old 65 Twin reissue is scratchy. How do I fix this? The sound's not affected; it's just scratchy when rotated.

Allen Peterson

Ray Anderson · Post by **Ray Anderson** » 17 Jul 2011 5:32 am

Radio Shack has a cleaner-lubricant in a spray can that is top quality. Remoce the knob (not the pot), lay the amp on it's back, take a large drinking straw and cut a short piece from it and place over the pot shaft, seal the piece of straw with a piece of tape or something similar and put tuner cleaner into the straw ( or any other cylinder that will fit). It will takt a few minutes for it to soak through, but it will and this should take care of it. Do all of them as preventive maintainance. Works for me. Hope this helps.

Ken Fox · Post by **Ken Fox** » 22 Jul 2011 7:04 am

You can also check from chassis ground to each terminal on pot for DC voltage. If there is voltage there then the pot will be scratchy. That would be due to a leaky capacitor in the tone stack section. Cleaner will not fix that issue, if that is the case.

Allen Peterson · Post by **Allen Peterson** » 22 Jul 2011 7:29 am

Thanks Ray and Ken. I'll try the cleaning first and the capacitor leak second, if the cleaning does not work. Probably a cheaper fix this way.

Allen