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2.5-inch ball conductor
2.5-inch ball conductor

2.5-inch ball conductor

Date1775-1850
Inventory Number1997-1-0485
ClassificationConductor
Subject
    Maker English ?
    Maker American ?
    Cultural Region
      Dimensions8.6 x 6.4 x 6.4 cm (3 3/8 x 2 1/2 x 2 1/2 in.)
      Material
        DescriptionBrass ball conductor with hole on top and turned pedestal on bottom. Base has a threaded hole.
        Signedunsigned
        FunctionElectrical conductor from an electrical machine.
        1.5-inch ball conductor
        1.5-inch ball conductor
        English
        Date: 1775-1825
        Object number: 1997-1-0486
        pair of 2.5-inch ball conductors on rods
        pair of 2.5-inch ball conductors on rods
        English
        Date: 1840-1875
        Object number: 1998-1-0665
        1.5-inch ball conductor
        1.5-inch ball conductor
        English
        Date: 1775-1850
        Object number: 1997-1-0476
        2.5-inch ball conductor mounted on rod
        2.5-inch ball conductor mounted on rod
        American
        Date: 1850-1900
        Object number: 1998-1-0765
        brass electric conductor on glass stand
        brass electric conductor on glass stand
        English
        Date: 1780-1820
        Object number: 1997-1-1319
        brass electric conductor on glass stand
        brass electric conductor on glass stand
        English
        Date: circa 1779
        Object number: 0092
        3.6-inch ball conductor
        3.6-inch ball conductor
        American
        Date: 1775-1850
        Object number: 1998-1-0911
        brass electric conductor on glass stand, with ball and three vertical rods
        brass electric conductor on glass stand, with ball and three vertical rods
        English
        Date: 1750-1779
        Object number: 0093
        set of 1.25-inch ball conductors mounted on rods
        set of 1.25-inch ball conductors mounted on rods
        French
        Date: 19th Century
        Object number: 2007-1-0254
        brass electric conductor on glass stand
        brass electric conductor on glass stand
        English
        Date: 1780-1820
        Object number: 1997-1-1387
        pair of 1.25-inch ball conductors
        pair of 1.25-inch ball conductors
        French
        Date: 19th Century
        Object number: 2007-1-0252
        3.5-inch ball conductor
        3.5-inch ball conductor
        French
        Date: 19th Century
        Object number: 1998-1-0912