On Tuesday 06 May 2003 23:23, Ben Jackson scribbled: > On Tue, May 06, 2003 at 10:57:59PM -0500, Picdude wrote: > > But this seems like a workable option to me... > > > > Rp > > .--'\/\/\,---> V+ > > | | / > > PIC O/P >---'---------------------|< > > | \ > > Well you left out V+ on the emitter of your PNP transistor, which is > going to be forward biased when you ground the base, and conduct large > amounts of current until you fry it. On this one, I'm still assuming an NPN with the E connected to ground and= the=20 C connected to the 7-seg display common cathode. Couldn't figure out a g= ood=20 way to put the arrow on the transistor in ASCII art. Cheers, -Neil. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads