Original poster: "pjj by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jjenkins-at-satx.rr-dot-com> BTW here is where i got the info for the 555 timer looks like other interesting stuff that might be able to be applied here <http://www.uoguelph.ca/~antoon/gadgets/gadgets.htm>http://www.uoguelph.ca/ ~antoon/gadgets/gadgets.htm Paul "Do I need to stand Back?"