[sdiy] Coarse and fine on one pot

[Rob Spencer]

Hi,

Does anyone know of a pot which has the ability to control coarse and fine values in one unit.

So there would be one knob, with maybe an outer for coarse and inner control for fine. I'm sure I've seen then on electronics from yesteryear but can't seem to fine then anywhere.

Hopefully I haven't just made them up. Any help would be much appreciated.

Cheers

Rob