Hi Mike, If you decide to build an isolation relay from the url Adam Farson posted, Radio Shack has the transistor, but it must be ordered. Ony a couple of bucks and about three or four days to get it. Add a little box, a couple of RCA jacks and the resistor = cheap. Larry, W3UIO __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com