Sean, I used some NEC switches on a project once. Most often we just use RF relays. Also, a PIN diode is a good way to isolate them. Andy ================================================================== Eternity is only a heartbeat away - are you ready? Ask me how! ------------------------------------------------------------------ andy@rc-hydros.com http://www.rc-hydros.com - Race Boats andy@montanadesign.com http://www.montanadesign.com - Electronics ==================================================================