Series dynamo
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“The electromagnet that supplies the flux of force must have a current to excite it. This current is sometimes supplied from an outside source. Such a dynamo is said to be seperately excited. Often all of the current from the armature is carried around the coils of the field magnet, thus forming a series dynamo.” — Avery, 1895
Source
Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 494
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