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Mike Coon[_2_]

In article ,
says...

On Mon, 30 Dec 2019 13:56:06 -0800, wrote:

isolated auto transformer

I always thought an autotransformer was a transformer with only one
winding, and input and output partially share that one winding.

But if that is true, an autotransformer cannot possibly be isolated.

Agreed. I once wrote to a magazine who had mentioned "autotransformer"
in the context of safety isolation on the basis that anyone who just
bought verbatim would be putting themselves in danger! They published
the correction...

Mike.