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  • Classification / Category: Galvanometer  
  • Artist / Maker / Culture: Heinrich Daniel Ruhmkorff  
  • Artist / Maker / Culture: American  
  • Artist / Maker / Culture: Troughton & Simms  
  • Artist / Maker / Culture: George R. Agassiz Station, Harvard  
  • Artist / Maker / Culture: Hartmann & Braun AG  
  • Artist / Maker / Culture: Robert V. Pound  
  • Artist / Maker / Culture: General Radio Company  
  • Artist / Maker / Culture: Carmelo Lanza  
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American (13)
Department of Physics, Harvard University (9)
Charles W. Engelhard Sr. (1)
Cruft Laboratory, Harvard University (1)
General Radio Company (1)
George R. Agassiz Station, Harvard (1)
Hartmann & Braun AG (1)
Heinrich Daniel Ruhmkorff (1)
Jefferson Physical Laboratory, Harvard University (1)
L. E. Knott Apparatus Company (1)

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Galvanometer (17)

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classroom demonstration galvanometer

classroom demonstration galvanometer

Heinrich Daniel Ruhmkorff
1850-1875
DC galvanometer

DC galvanometer

General Radio Company
circa 1925
demonstration galvanometer with moving magnet

demonstration galvanometer with moving magnet

American
1910-1930
galvanometer

galvanometer

L. E. Knott Apparatus Company
circa 1910
galvanometer for pyrometer

galvanometer for pyrometer

Hartmann & Braun AG
1910-1920
galvanometer with moving magnet

galvanometer with moving magnet

American
1890-1920
mounting for string galvanometer

mounting for string galvanometer

American
1900-1930
portable galvanometer (test set)

portable galvanometer (test set)

American
1900-1930
projection demonstration galvanometer showing Oersted's experiment

projection demonstration galvanometer showing Oersted's experiment

American
late 19th-early 20th Century
quartz string inserter for Hindle string galvanometer

quartz string inserter for Hindle string galvanometer

American
1920-1930
reflecting galvanometer with suspended needle

reflecting galvanometer with suspended needle

American
1900-1920
simple current indicator-type galvanometer

simple current indicator-type galvanometer

American
circa 1890
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