Author Topic: AutoTransformer??  (Read 1346 times)

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AutoTransformer??
« on: June 19, 2011, 23:11:04 pm »
Hey everyone,
 
I am asking everyone out there is Stan’s Variac in FIG 8xA was setup up like an autotransformer. I just found out what this actually means. The autotransformer is used with one coil that has no electrical isolation.  It actually is the same as the bifilar coil, ignition coil, also used in television to produce higher output voltages. But looking at the Fig8xa Diagram schematic the transformer is shown as a variable isolation transformer.  It just so happens that and ordinary isolated variable transform can either be both. Depending on how you wire it.
 
I was looking at one of Dyndons pic on the Variac for Fig8xA it just so happens to be center tap. 
Any insight?