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inductance coil
inductance coil

inductance coil

Date1900-1930
Inventory Number1997-1-0151
ClassificationInductance Coil
Subject
    Maker American (Harvard University?)
    User Department of Physics, Harvard University founded 1884
    Cultural Region
      Place of Origin
        Dimensions14.2 × 16.4 × 16.2 cm (5 9/16 × 6 7/16 × 6 3/8 in.)
        Material
          DescriptionTwo inductance coils with silk wound (150 turns) fine off-white copper ribbon. One in a black box with three brass binding posts.
          Signedunsigned
          FunctionFor experimentation and demonstration of the high voltages induced in a secondary winding when the current in the primary windings is abruptly disrupted.

          More information on inductors is found on the following website.
          ProvenanceFrom the Department of Physics, Jefferson Laboratory, Harvard University.
          inductance coil
          inductance coil
          American
          Date: circa 1925
          Object number: 0365
          inductance standard
          inductance standard
          American
          Date: circa 1920
          Object number: 0482
          induction coil
          induction coil
          American
          Date: circa 1925
          Object number: 0364
          inductance standard
          inductance standard
          Department of Physics, Harvard University
          Date: circa 1920
          Object number: 0481
          2 inductance coils
          2 inductance coils
          American
          Date: late 19th-early 20th Century
          Object number: 0366a,c
          Green wooden storage box,containing misc. coils, variometers
          Green wooden storage box,containing misc. coils, variometers
          Date: late 19th-early 20th Century
          Object number: RS0168
          Large green wooden box of various parts including condensers.
          Large green wooden box of various parts including condensers.
          Object number: RS0295
          induction coil
          induction coil
          American
          Date: mid 19th-early 20th Century
          Object number: 0405
          Green wooden storage box containing various coils and variometers
          Green wooden storage box containing various coils and variometers
          Date: 1890-1930
          Object number: RS0508
          standard of self-inductance coil
          standard of self-inductance coil
          Nalder Brothers & Company
          Date: 1885-1925
          Object number: 0331
          variable inductance
          variable inductance
          American
          Date: circa 1890
          Object number: 0497
          variable inductance
          variable inductance
          George Washington Pierce
          Date: circa 1905
          Object number: 0520