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induction coil

Datelate 19th-early 20th Century
Inventory Number0505
ClassificationInduction Coil
Subject
    Cultural Region
      Dimensions14 × 47.5 × 11.4 cm (5 1/2 × 18 11/16 × 4 1/2 in.)
      Material
        DescriptionFrom Instrument Card: "Coil wound on hard rubber tubing, with square end pieces of hard rubber. Two binding posts on each end."
        Signedunsigned
        FunctionA type of electromagnet. Possibly used for the demonstration of and experimentation with high voltages and magnetism.
        induction coil
        American
        Date: late 19th-early 20th Century
        Object number: 0506
        induction coil
        Heinrich Daniel Ruhmkorff
        Date: circa 1859
        Object number: 0502
        induction coil
        Theodore William Richards
        Date: late 19th-mid 20th Century
        Object number: 0342
        induction coil
        Thordarson Electric Manufacturing Company
        Date: 1920
        Object number: 0344
        Rhumkorff induction coil
        American
        Date: 1870-1900
        Object number: 1997-1-0538
        induction coil
        American
        Date: late 19th-early 20th Century
        Accessories: 2nd induction coil - 367b
        Object number: 0367a
        induction coil
        American
        Date: late 19th-early 20th Century
        Object number: 0367b
        induction coil
        Heinrich Daniel Ruhmkorff
        Date: circa 1859
        Object number: 0343
        inductance substandard
        Department of Physics, Harvard University
        Date: circa 1895
        Accessories: goes together with coil # 0493
        Object number: 0494
        inductance substandard
        Department of Physics, Harvard University
        Date: circa 1895
        Accessories: goes together with coil # 0494
        Object number: 0493
        induction coil
        American
        Date: mid 19th-early 20th Century
        Object number: 0405
        induction coil
        A. P. Gage and Son
        Date: after 1851
        Object number: 0338