Thanks guys, I have a G4T5 on the way for about $10 now. Looking over = the plans for the 230ac mains power supply for it and thinking of a = voltage doubler for use on 120ac. Many thanks for the help, you saved me = a few bucks, with I guess I will use for a safety cover switch. B) Dave -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body