On 1/25/06, Bob Axtell wrote: > > Don't overlook the fact that you can use a dual-pot chip, which will > give you much greater > range. One pot could "ROUGH IN" the value, and the other fine-tune it. Old analog techniques of adding resistors above and below the pot to narrow the adjustment range, or adding resistors after the pot, from the wiper to top and bottom, to shape the curve come to mind. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist