In Reply to: VARIAC hook up posted by sailor321 on July 13, 2011 at 09:19:44:
Terminal 3 is almost certainly the wiper, so it will be one of the outputs. Suggest you use a signal generator or bell transformer (10 volt output) or the 6V or 5V winding of a power transformer you have laying around as a low voltage source and safely determine the relationships among the terminals.
And remember that a variac is NOT an isolation transformer--the output still has a DC path to ground.
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Follow Ups
- Not sure but... - Lee of Omaha 14:10:58 07/13/11 (1)
- RE: Not sure but... - sailor321 05:52:05 07/14/11 (0)