One simple test you can do is get a resistor or some lamps and load the power supply to 1000ma and see how hot it gets. That will answer that question independent of anything to do with your circuit. Barry >The problem was the wall wart heating up. > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body