Michael Watterson wrote: > Even a resonator often isn't good enough. Some resonators can be pretty bad, like 5%, but resonators accurate to well under 1% are cheaply and readily available in a variety of frequencies. 0.5% is a common tolerance value. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .