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0460001340

Edison generator for electric light at Menlo Park. Behind doors is the 80 hp engine. The two vignettes (top) are Edison's improved form of JW Trowbridge's electric dynamometer and Thomson's mirror galvanometer. 'Scientific American' New York 1879.

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Irish Photo Archive
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Edison generator for electric light at Menlo Park. Behind  doors is the 80 hp engine. The two vignettes (top) are Edison's improved form of JW Trowbridge's electric dynamometer and Thomson's mirror galvanometer. 'Scientific American' New York 1879.