If you get EDN magazine, make sure you read the Tales From The Cube column for all the June issues. I am not allowed to say any more at the moment, but you can also find these at www.edn.com/tales Brian Conley, PE Circuitsville Engineering LLC www.circuitsvilleeng.com Voice - 503-530-6520 FAX - 503-574-2066 bconley at circuitsvilleeng.com