Visual Materials
An operator standing by one of the original "Jumbo" dynamos installed at Thomas Edison's Pearl Street Plant in New York City, 1882
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The resistance-grid voltage regulator bank at the Pearl Street Plant, from a woodcut in Scientific American, 1882
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The resistance-grid voltage regulator bank at the Pearl Street Plant, from a woodcut in Scientific American, 1882. Pg. 12.
photCL SCE 11 - 00012

Edison's street lighting load increased in the postwar period as tract homes spread across Southern California
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Edison's street lighting load increased in the postwar period as tract homes spread across Southern California. Pg. 209.
photCL SCE 11 - 00418

Operator Bill Howardson monitors plant machinery and system electric demand in the control room at Long Beach Steam Plant No
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Operator Bill Howardson monitors plant machinery and system electric demand in the control room at Long Beach Steam Plant No. 2. Pg. 195.
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The Jordan Hydro Plant operator on duty, 1911
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The Jordan Hydro Plant operator on duty, 1911. He is sitting with attention on the switchboard meters, and with a hand on the exciter needle-valve control, ready to respond to quick changes in demand. Pg. 74.
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One tower of Edison's growing network of 500kV transmission lines stands sentinel in Cajon Pass in the winter of 1973
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One tower of Edison's growing network of 500kV transmission lines stands sentinel in Cajon Pass in the winter of 1973. Pg. 226.
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Thomas Edison standing beside a bi-polar generator of his design, about 1885
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Thomas Edison standing beside a bi-polar generator of his design, about 1885. Keystone-Mast Collection, University of California Riverside. Pg. 12.
photCL SCE 11 - 00011