Original poster: "Aron Koscho by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kc5uto-at-wt-dot-net> Hi All, Although not quite on the topic of coils, I know a few on the list would be interested. I have added some schematics of my recent induction heater designs. These are tested, however still preliminary, any input is welcome. Thanks, Aron Aron Koscho kc5uto www.hvguy-dot-com