> You could use a capacitance multiplier. >=20 > http://en.wikipedia.org/wiki/Capacitance_multiplier >=20 > Kerry Good grief, there is a couple of badly laid out schematics for ya' ... --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .