i agree...............the wrong hook up on some terminals.......like MT1..REVERSED ON MT2....(triac's)...WILL BLOW UP IN YOU'R FACE.......EVEN OPTO COUPLERS.........BEWARE...... -----Original Message----- From: Donald L Burdette To: PICLIST@MITVMA.MIT.EDU Date: Friday, December 10, 1999 7:39 PM Subject: Re: Microchip Appnote Dimmer Problem. >Darren - > >After reading your posts, I have one other recommendation - get some >experience with logic circuits before you play with lethal voltages and >high power levels. I don't mean to be unkind, but if you have this much >trouble understanding what's really a simple circuit, you should not be >messing with mains voltages.