Bill Kuncicky wrote: > Only thing is, I have read some postings recently where tantalum > capacitors were exploding because of the wrong polarity, and I am > feeling a little bit insecure in what I am doing. :-( Good. That will keep you on your toes. Never forget that this stuff can be dangerous if abused. > I have an operational amplifier (op amp) breadboarded up, with +12 volts > and -12 volts. Each leg of the voltage has a 10 microfarad electrolytic > capacitor going to ground. On the +12 volts side, I have the minus side > of the capacitor going toward ground. On the -12 volts side, I have the > plus side of the capacitor going to ground, since ground in this case is > more positive than the -12 volts. This is correct, assuming the capacitors are rated for at least 12V, preferably a bit more. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist