Original poster: FutureT-at-aol-dot-com In a message dated 9/2/04 1:32:00 PM Eastern Daylight Time, tesla-at-pupman-dot-com writes: >Also, could someone explain reverse voltage mode from an engineering point > >of view?? Gerry, It seems that if the SRSG phase is set so it doesn't fire, then the voltage can reverse to the opposite polarity, then fire. John