Well, if you design carefully, you could use a small stepper motor. You can get them pretty tiny. If you don't keep any of the phases energized, it should turn easily, plus when you want to move it, you don't need feedback, just step it a certain number of steps and be done. Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams John Ferrell wrote: > I am looking into a mechical "knob turner" that might be used to adjust > audio panel controls. Ideally, it would not prohibit manual adjustment at > the panel. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu