Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net> Terry: Did you ever publish final results of your experiments in controlling the TC AC power with a dimmer replacing a variac? In other words, did you ever run a coil with a dimmer and, if so, what were the results. Been away for a few days and only remember the beginnings of your work. Ed