Figure 2 Autotransformer step-down with unity coupling coefficient. I guess it’s time for me to say “mea culpa.” I must be getting careless in my old age. However, the two models above can be ...
Some years ago, I wrote an essay entitled “Using One 115V Fan On Two Line Voltages.” Its essence was that a fan motor rated for one line voltage could be switched to running at twice that line voltage ...
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