The inventions, researches and writings of Nikola Tesla : with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas C, Tesla, Nikola · The Electrical Engineer · leaf 66
two poles and permit the core e to be turned to and held at any desired point . A handle , g , secured to the projecting end of the shaft n , is provided for this purpose . In Fig . 36 let n represent an ordinary alternating current gen erator , the field - magnets of which are excited by a… … Fig . 34 . Fig . 35 . field - magnet cores be divided up into insulated sections , may be practically operated by an alternating current ; but in using this regulator with such a motor , Mr . Tesla includes one element of the motor only — say the armature - coils — - " in the main circuit of the…
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