4 Free Photos of Mirror Galvanometers

cc-zerofiles uploaded by daderotgalvanometers in the museum of science and industry (chicago)light
Thompson Galvanometer, c. 1900 - Museum of Science and Industry (Chicago) - DSC06514
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Thompson Galvanometer, 1965 - Museum of Science and Industry (Chicago) - DSC06522
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Mirror Galvanometer, James W. Queen & Company, Philadelphia, early 20th century - Museum of Science and Industry (Chicago) - DSC06512
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Thompson Galvanometer, c. 1900 - Museum of Science and Industry (Chicago) - DSC06516
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