At 11:21 PM 2/28/2004 -0500, you wrote: >Cathode of the zener to pin 9, anode to ground (or +12 is better, ^^^^^ Should read pin 10. >actually, provided the zener voltage isn't too high). You could just >connect pin 8 to 12V, but that would reduce the performance of the ^^^^^^^^ pin 10. I think I'll quit now, not used to this much beer anymore. I'm also working on a design with the ULN2003A driver.. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.