> >That's right. Most times folks use a Darlington (or the complimentary pair >whose name starts with a SZ, szuliki?) config where the PIC drives the 1st >transistor base, which then drives the second base. Allows for higher voltage >and stiffer current for the main driver. Sziklai pair. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads