At 10:11 1998-06-19 +0200, you wrote: ... >I see. But I think one could spare the base resistor by using an emitter >follower, right? I mean connecting base to PIC output, collector to +5V >and placing diode/resistor between emitter and GND. This cuts the drive >voltage for the diode/resistor combination by 0.7V, but has better >switching characteristics as the transistor is not put into saturation. >Right? > >Georg. Excellent /Morgan. >BTW, thanks to all that contributed to this. > > / Morgan Olsson, MORGANS REGLERTEKNIK, SE-277 35 KIVIK, Sweden \ \ mrt@iname.com, ph: +46 (0)414 70741; fax +46 (0)414 70331 /