> Yeah, it's working because it has been reverse biased, but it > should not > be as bright as if it were in the correct way. If in the 'right' direction the transistor is used way beond saturation it might still be in saturation with the poort Beta of the inverted direction. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads