Original poster: "Joseph Geiss by way of Terry Fritz <twftesla-at-qwest-dot-net>" <joseph20-at-comcast-dot-net> I just happen to have a link to it http://www.repairfaq-dot-org/sam/lasersam.htm Joe G >Hi Colin... > >try doing a search for Silicon Sams FAQ's ... it will cover EVERYTHING >about lasers and a multitude of other electronic components... > >Scot D