From: Mark Devin Newland > >I also will use a 2N7000 (a common FET) that trips somewhere around >2 volts at times. A IRFD 123 FET works nice for switching up to 1 amp at 60 volts. It goes in the low side and work like a charm no resistors. I generally put a bypass cap on the gate to stop any chance of oscillation. Gordon Gordon Couger gcouger@rfdata.net 624 Cheyenne Stillwater, OK 74075 405 624-2855 GMT -6:00