Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 190
er one or fifty of them are in use ; it does make a differ-ence, however, in the power consumed at the generator. Theregulation of the current is reduced to the simple matter of vary-ing the intensity of the magnetic field in which the armature ofthe generator revolves. The entire lighting… … Fig. 88. The present form of the Edison lamp is shown in Fig. 88. Itconsists of a clear glass globe exhausted of air, into which issealed a filament of carbonized bamboo, but a little thicker than ahorsehair. Two platinum wires connect this filament with ametallic screw and tip on the plug below,…
Electrical engineering
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