I'm about to put together anothe 5V power supply. You know the drill: diodes, 2200s, 7805, .1, .33 caps. But, I'm going to put a switch on this one. Should it be on the supply side (OK, that won't work) but should it be on the input side, or on the output side? Thanks guys, Colin _________________________________________________________________ Get dial-up Internet access now with our best offer: 6 months @$9.95/month! http://join.msn.com/?page=dept/dialup -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu