Original poster: "Cory Roussel by way of Terry Fritz <twftesla-at-qwest-dot-net>" <imcuddlycory-at-yahoo-dot-com> Hello all, I dont know much about variacs so i was just wondering if they isolate you from the mains? (if they were shorted would it trip a breaker??^^...) If not, are there any good sources for isolation transfomers on the web???