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Transformer manufacture. These huge aluminum spheres are used to test each power transformer which is ready to be shipped from a large Eastern electrical plant. Since lightning is apt to destroy power units in the field, each transformer is given an "artificial lightning" test to determine its abili
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Transformer manufacture. These huge aluminum spheres are used to test each power transformer which is ready to be shipped from a large Eastern electrical plant. Since lightning is apt to destroy power units in the field, each transformer is given an "artificial lightning" test to determine its abili

Palmer, Alfred T., United States. Office For Emergency Management · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

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sharonmercer countysafety film negativesunited statespennsylvania
Credit lineTransformer manufacture. These huge aluminum spheres are used to test each power transformer which is ready to be shipped from a large Eastern electrical plant. Since lightning is apt to destroy power. 1942-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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