poss OT but it's DIY :-
I have an old but nice Yamaha bass amp combo which has had scratchy pots since I bought it years ago - they are nearly all (volume, tone etc) scratchy to a greater or lesser extent.
How feasible is a DIY repair? I am ok with a soldering iron and would appreciate any help/pointers as to what to look for/check when finding/ buying new pots to replace the old and from where to buy them.
TIA JimK