Hi Techie guys, I'm returing to playing after a long hiatis, and have been draging around a ric tr25 for 40 years. It stills works but has scratchy knobs when turned. And some drop out. Can I clean and relube the knobs? Also the amp has a tremolo/distortion footswitch plug in back. What kind of footswitch can I use with it? Thanks for your help.
ChefKev