Quote:
Originally Posted by dieseljeep
A Variac is a auto-thansformer, not an isolation transformer. 
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Ok; the problem with assumptions right? Anyway, I have a Variac. I assumed it was isolation simply due to its heavy weight which told me that there was a transformer present and I thought that an isolation transformer was a 1 to 1 ratio transformer used to simply isolate the user of equipment plugged into the unit from direct contact with line voltage/current.
Correct me on this one.