Just wanted to thank you, Ive got a grundig that somebody was to lazy to just tighten the set screw on the volume knob so they superglued it on, the acetone worked great, I did'nt have enough room to get it on the shaft
so I removed the set screw and put a drop down there, a couple of minutes of pulling and jiggling (man this sounds dirty) and it popped off,
Thank you!