Original poster: "Tim J by way of Terry Fritz <twftesla-at-qwest-dot-net>" <digital_raven45-at-hotmail-dot-com> Great work! :) I'm thrilled! 13 kV is a good starting voltage for any Tesla Coil! I bet if you gave the unit a little more wattage to play with you could easily go into the 14 kV range. I'm sure. ..have fun arcin' and sparkin'