aston Ga100 transister amp bass control no work

[scottg2219]

I have a GA100 ashton amp and the bass control does not work and the reverb gives this slight buzz noise when turned on 10 what could be the possible problem or could is be that the pots are faulty all other functions are working

[kent_eh]

Possibly faulty, probably dirty.

If it's just dirt, then an electronic cleaner spray might be all you need Something similar to this

If it's beyond that, it's a relatively easy fix for someone skilled in the use of a soldering iron.