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Summary
Paraphrased article description:
Elementary six wire, three phase alternator
Public Domain source:
Hawkins Electrical Guide, Volume 4
Chapter 46: Alternating Currents
Page 1026, Figure 1260
Copyright 1917 by Theo. Audel & Co.
Printed in the United States
For a list of all these illustrations used in Wikipedia please see the article Hawkins Electrical Guide.
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