Another question, how can I get loose the potentiometer knob? I think it is
glued.
//Lars

Not near my hf150 now, but I changed out the pot (noisy) a year ago &
don't seem to remember any screw on the volume knob. I seem to
remember just pulling it off? I may be wrong, but I don't remember
EVER having forgotten anything

I do remember the cursed design virtually requires disassembly &
unsoldering of every part on the board before the volume control could
be removed. Not quite but extremely poor placment of the volume pot.

Robert