Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com> I would suggest before building anything, that you read Richie Burnett's site on tesla coils. It is very informative to how a telsa coil works and should help you greatly. Richie Burnett's Website http://www.richieburnett.co.uk/operation.html#operation Dan