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A-C Network Calculator, inside mechanics, Illinois Institute of Technology, Chicago, Illinois, 1945

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Year: 1945
Contributors
Description Photograph of some of the inner mechanics of Illinois Institute of Technology's A-C Network Calculator. The A-C Calculator, used to test complex power systems in a controlled, miniature environment, was the tenth of its kind in the country. It was cooperatively purchased by Illinois Tech's Electrical Engineering department and a ten Midwest power companies for $80,000 in 1944. more
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W.C. Jacobs and J.M. Brager of Consumer Powers Company with A-C Network Calculator, Illinois Institute of Technology, 1951

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Year: 1951-08
Contributors
Description W.C Jacobs (left) and J. M. Brager (right) of Consumers Power Company, Jackson, Michigan, making adjustments on Illinois Institute of Technology's A-C Network Calculator during a study on the calculator of the Consumers Power system. The A-C Calculator, used to test complex power systems in a controlled, miniature environment, was the tenth of its kind in the country. It was cooperatively… more
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Two Men with A-C Network Calculator, Illinois Institute of Technology, ca. 1951

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Year: 1951
Contributors
Description Photograph of two men (possibly W.C Jacobs and J. M. Brager of Consumers Power Company using Illinois Institute of Technology's A-C Network Calculator. The A-C Calculator, used to test complex power systems in a controlled, miniature environment, was the tenth of its kind in the country. It was cooperatively purchased by Illinois Tech's Electrical Engineering department and a ten… more
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Unknown Illinois Institute of Technology student and instructor with a wire recorder used in a public speaking class, Chicago, Illinois, ca. 1947-1950

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Year: 1947 to 1950
Contributors Lucas, Joseph J., Jr.
Description Photograph of an unknown Illinois Tech student and an intsructor from Illinois Tech's Language and Literature department (possibly named Stitzel) with what appears to be a combined wire recorder and phonograph used in a public speaking class. The recorder does not appear to be an Armour Research Foundation recorder. Date of photograph is unknown. Date range listed is approximate. more
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