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High-sensitivity mirror galvanometer

circa 1920

Moving coil galvanometer

circa 1890

unipivot galvanometer

1924

Vacuum manometer.

Vacuum manometer.

Moving coil galvanometer made by Weston Electrical Instrument Corporation, Newark (USA), 1895.

Moving coil galvanometer made by Weston Electrical Instrument Corporation

1895

Moving coil galvanometer

Everett, Edgcumbe and Company Limited moving coil galvanometer

1930

moving coil galvanometer made by Automatic Coil Winder Co. Ltd, in England, United Kingdom, 1938

moving coil galvanometer made by Automatic Coil Winder Co. Ltd

1938

Moving coil galvanometer made by H. Tinsley & Co., London (England) 1930.

H. Tinsley & Co. moving coil galvanometer

1930

Moving coil galvanometer made in England.

Moving coil galvanometer made in England

Salford Electrical Instruments moving coil galvanometer

1910

Siemens moving coil galvanometer

Siemens moving coil galvanometer

1888

Moving coil galvanometer made by Marconi Instruments Ltd, London (England) 1955.

Marconi Instruments Ltd moving coil galvanometer

1955

Moving coil galvanometer made by British Thomson-Houston Ltd, Rugby (England).

Moving coil galvanometer made by British Thomson-Houston Ltd

Moving coil galvanometer, made by Cambridge Instruments Co., London, 1924.

Moving coil galvanometer

1924

Moving coil galvanometer made by General Electric Co, Birmingham (England) 1925.

Moving coil galvanometer made by General Electric Co

1925

moving coil galvanometer and recorder manufactured by Evershed & Vignoles Ltd

Evershed & Vignoles moving coil galvanometer

1955

Moving coil galvanometer made by Foster Instrument Co, Letchworth (England), 1959.

Moving coil galvanometer made by Foster Instrument Co

1959

Galvanometer, made by English Electric Co. Ltd

Galvanometer, made by English Electric Co. Ltd

1925

Moving coil galvanometer.

Moving coil galvanometer

Moving coil galvanometer, England.

moving coil galvanometer

Moving coil galvanometer made by Nalder Brothers and Co, London (England) 1897.

Nalder Brothers and Co moving coil galvanometer

1897

Moving coil galvanometer made by Gambrell Brothers & Co. Ltd, London (England) 1940.

Gambrell Brothers Ltd. moving coil galvanometer

1940

Moving coil galvanometer made by Herskine Heap and Co, Manchester 1936.

Moving coil galvanometer made by Herskine Heap and Co

1936

Moving coil galvanometer made by British Thomson-Houston Company Limited, 1920.

Moving coil galvanometer made by British Thomson-Houston Company Limited

1920

Moving coil galvanometer made by British Thomson-Houston Company Limited, Rugby (England) 1920.

Moving coil galvanometer made by British Thomson-Houston Company Limited

1920

Moving coil galvanometer made by R.W. Paul, London (England) 1910.

Moving coil galvanometer made by R.W. Paul

1910

Moving coil galvanometer made by Tungsram.

Tungsram galvanometer

Moving coil galvanometer made by William Thomson, Manchester (England).

Moving coil galvanometer made by William Thomson

Moving coil galvanometer made by Cambridge Instruments Co., London, 1924.

Moving coil galvanometer made by Cambridge Instruments Co

1924

Moving coil galvanometer made by Cambridge Instruments Co., Cambridge (England) 1933.

Cambridge Instruments Co. galvanometer

1933

Moving coil galvanometer made by The Record Electrical Co. Ltd, Manchester (England) 1930.

Moving coil galvanometer made by The Record Electrical Co. Ltd

1930

moving coil galvanometer, Sangamo Weston Ltd, England, 1943

moving coil galvanometer

1943

Moving coil galvanometer, made by Ferranti Ltd in Hollinwood (Manchester), 1955.

Moving coil galvanometer

1955

Combined voltmeter and ammeter made by Weston Instrument Co., 1910, Newark (USA). Two pivoting coils, within the poles of two large magnets are mounted opposite each other on a base and are enclosed by casing. Each coil has a long pointer. Scale in volts is marked from 0 to 800 and the scale in amperes from 0 to 50.

Weston Electrical Instrument Corporation moving coil galvanometer

1910

Galvanometer contained in lidded wooden box, with leather carrying strap. Plaque inside marked 'UNIPIVOT', with a screen to show scale. Manufactured by Robert William Paul

Galvanometer contained in lidded wooden box

1911

Moving coil galvanometer made by Weston Electrical Instrument Corporation, Newark (USA), 1914.

Weston Electrical Instrument Corporation moving coil galvanometer

1914

Moving coil galvanometer, made by National Physical Laboratory, England, 1932.

Moving coil galvanometer

1932

Moving coil galvanometer, 1940.

Moving coil galvanometer

1940

Moving coil galvanometer made by Metropolitan-Vickers Electrical Company Limited, Manchester (England), 1920.

Metropolitan-Vickers moving coil galvanometer

1920

Moving coil galvanometer made by Paterson & Cooper in London, 1890.

Paterson & Cooper moving coil galvanometer

1890

Moving coil galvanometer manufactured by Metropolitan-Vickers Electrical Company Limited, England (UK) 1935.

Moving coil galvanometer manufactured by Metropolitan-Vickers Electrical Company Limited

1935

Moving coild galvanometer made by Weston Electrical Instrument Corporation, Newark (USA), 1905.

Moving coild galvanometer made by Weston Electrical Instrument Corporation

1905

moving coil galvanometer, Sangamo Weston Ltd, 1941, England

moving coil galvanometer

1941

Moving coil galvanometer made by Cambridge Instruments Co., London (England) 1928.

Cambridge Instr. Co. moving coil galvanometer

1928

Moving coil galvanometer made by Cambridge Instruments Co., England 1960.

Cambridge Instr. Co. moving coil galvanometer

1960

Moving coil galvanometer made by Evershed & Vignoles Ltd, London (England) 1930.

Moving coil galvanometer made by Evershed & Vignoles Ltd

1930

Moving coil galvanometer, made by Nalder Bros & Thompson, London, 1930.

Moving coil galvanometer

1930

Moving coil galvanometer made by Ferranti Ltd, Manchester (England) 1930.

Ferranti Limited moving coil galvanometer

1930

Moving coil galvanometer made by Weston Electrical Instrument Corporation, Newark (USA), 1920.

Weston Electrical Instrument Corporation moving coil galvanometer

1920

Moving coil galvanometer made by Crompton and Company Limited, London (England) 1910.

Moving coil galvanometer made by Crompton and Company Limited

1910

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