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Drysdale-Tinsley vibration galvanometer

Drysdale-Tinsley vibration galvanometer

H. Tinsley & Company
1910-1924
galvanometer

galvanometer

Daniel Davis, Jr.
circa 1850
galvanometer

galvanometer

General Electric Company
circa 1940
galvanometer

galvanometer

French
circa 1825
galvanometer

galvanometer

Leeds & Northrup Company
circa 1929
galvanometer

galvanometer

L. E. Knott Apparatus Company
circa 1910
galvanometer

galvanometer

General Electric Company
early 20th-mid 20th Century
galvanometer

galvanometer

Weston Electrical Instrument Corporation
1910-1940
galvanometer

galvanometer

J. &. A. Duboscq
circa 1880
galvanometer for pyrometer

galvanometer for pyrometer

Hartmann & Braun AG
1910-1920
galvanometer for pyrometer

galvanometer for pyrometer

Charles Féry
circa 1910
galvanometer with moving coil

galvanometer with moving coil

L. E. Knott Apparatus Company
1910-1930
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