Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 481
Fig. 190. to ascertain that the alternator is in phase with thecircuit before the switch is turned. A maphine which has a simple rotating armature andboth a split-tube commutator to collect continuouscurrents, and a pair of slip rings for alternating cur-rents, may be used as a transformer,…
Electricity · Magnetism
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