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induction coil
induction coil

induction coil

Date1870-1900
Inventory Number1997-1-0156
ClassificationInduction Coil
Subject
    Cultural Region
      Place of Use
        Dimensions46.5 × 80 × 36.5 cm (18 5/16 × 31 1/2 × 14 3/8 in.)
        Material
          DescriptionLarge induction coil with orange velvet fabric over the windings and massive base. The instrument is evidently wound in sections which are partly visible under the cloth cover over the windings. On top are two adjustable discharge rods.
          Signedunsigned
          FunctionFor experimentation and demonstration of the high voltages induced in a secondary winding when the current in the primary windings is abruptly disrupted.

          For more information on such an instrument, and other similar examples, go to the following website.
          ProvenanceFrom the Department of Physics, Bowdoin College.
          induction coil
          Thordarson Electric Manufacturing Company
          Date: 1920
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          Adolphe Gaiffe
          Date: circa 1870
          Object number: 0340
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          Reinhold Rudenberg
          Date: circa 1899
          Object number: 1989-0014
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          Department of Physics, Harvard University
          Date: circa 1915
          Object number: 0476
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          Daniel Davis, Jr.
          Date: 1842-1855
          Object number: 0444
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          Theodore William Richards
          Date: late 19th-mid 20th Century
          Object number: 0342
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          Heinrich Daniel Ruhmkorff
          Date: circa 1859
          Object number: 0343
          solenoid coil of two windings
          American
          Date: 1890-1920
          Object number: 0376
          flat spiral (or ribbon) coil
          Daniel Davis, Jr.
          Date: 1842-1855
          Object number: 0103
          flat spiral (or ribbon) coil
          Daniel Davis, Jr.
          Date: 1842-1855
          Object number: 0101
          flat spiral (or ribbon) coil
          Daniel Davis, Jr.
          Date: 1842-1855
          Object number: 0102
          induction coil
          Heinrich Daniel Ruhmkorff
          Date: circa 1859
          Object number: 0502