Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Parpp807-at-aol-dot-com> In a message dated 9/20/01 2:01:02 PM Central Daylight Time, tesla-at-pupman-dot-com writes: << the voltages on the primary and secondary are 90 degrees out of phase anyway. Cheers, Terry > Terry, Not 180? Ralph Zekelman