How about just a resistor/capacitor bridge type of tester where you plug in the unknown part and the LCD displays the value. If you're easily offended delete this message now, otherwise scroll way down. dave. Way back when, I memorized the "bad boys rape our young women but violet gives willingly get some now" technique. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads