Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com> Anyone know of a inexpensive source for large variacs?? I've been looking on ebay but haven't seen anything recently. Looking for a 240VAC, 20A + variac. Also, can three phase variacs be wired in parallel to provide extra output current for a single phase system??? Thanks Dan