On May 20, 3:14*pm, Vasil wrote:
I want to change the pot on my amplifier with one from Alps. The
problems is the only Alps pot that matches the dimensions and
resistance has a slotted shaft and my amp has a pot with a flattened
shaft. Is there a way to adapt a slotted shaft so the knob for the
flattened shaft can fit without a problem?

Assuming the diameter is OK, put a shim into the slot, then (with
the shaft in a vise) file the flat (so it makes a T with the slot).