moving iron galvanometer made by Hartmann & Braun, in Germany, 1885 moving iron galvanometer made by Hartmann & Braun 1885
Moving iron galvanometer, made by Hartmann & Braun, Germany, 1910. Hartmann & Braun moving iron galvanometer 1910
Moving iron galvanometer made by J. White, Glasgow (Scotland), 1896. J White moving iron galvanometer 1896
Moving iron galvanometer made by Hartmann & Braun, Frankfurt (Germany), 1890. Moving iron galvanometer made by Hartmann & Braun 1890
Moving iron galvanometer made by Whitney Electrical Instrument Co., USA 1905. Whitney Electrical Instrument Co. moving iron galvanometer 1905
Moving iron galvanometer, made by Scottish Aviation Ltd, USA, 1910. Scottish Aviation Ltd moving iron galvanometer 1910
moving iron galvanometer made by Paterson & Cooper, in England, United Kingdom, 1883 moving iron galvanometer made by Paterson & Cooper 1883
Moving iron galvanometer made by W.R. Thornton, England 1945. Moving iron galvanometer made by W.R. Thornton 1945
Moving iron galvanometer made by General Electric Co. Ltd, England 1920. General Electric Co moving iron galvanometer 1920
Moving iron galvanometer made by Crompton and Company Limited, Chelmsford (England) 1930. Moving iron galvanometer made by Crompton and Company Limited 1930
Moving iron galvanometer, made by James A. Waller, London, 1920. Waller moving iron galvanometer 1920
Moving iron galvanometer, made by James A. Waller, England, 1905. James Waller moving iron galvanometer 1905
Moving iron galvanometer made by Nalder Brothers & Co, London 1905. Moving iron galvanometer made by Nalder Brothers & Co 1905
Moving iron galvanometer made by Nalder Brothers & Co, London 1904. Nalder Brothers and Co moving iron galvanometer 1904
Moving iron galvanometer, made by Ferranti Ltd, Hollinwood (Manchester), 1930. Ferranti Limited moving iron galvanometer 1930
Moving iron galvanometer made by The British Westinghouse Electrical and Manufacturing Company, England (UK) 1915. The British Westinghouse Electrical and Manuf. Co. moving iron galvanometer 1915
Moving iron galvanometer, made by Muirhead & Company Ltd, London, 1890. Muirhead and Company Limited moving iron galvanometer 1890
Moving iron galvanometer made by Ferranti Ltd, England (UK) 1930. Moving iron galvanometer made by Ferranti Ltd 1930
Moving iron galvanometer made by Nalder Bros & Thompson, London, 1930. Moving iron galvanometer made by Nalder Bros & Thompson 1930
Moving iron galvanometer made by Metropolitan-Vickers Electrical Company Limited, Manchester (England) 1945. Moving iron galvanometer made by Metropolitan-Vickers Electrical Company Limited 1945
Moving iron galvanometer made by Evershed & Vignoles Ltd, London (England). Evershed & Vignoles moving iron galvanometer
Moving Iron Galvanometer- Glass cylinder on a wooden round base. Manufactured by Siemens&Halske AG. Moving Iron Galvanometer- Glass cylinder on a wooden round base
Moving iron galvanometer made by Associated Electrical Industries Ltd - Scientific Apparatus Department, 1940. Associated Electrical Industries Ltd moving iron galvanometer 1940
Moving iron galvanometer, made by Hartmann & Braun, Frankfurt (Germany). Hartmann & Braun moving iron galvanometer
Moving iron galvanometer, made by Weston Electrical Instrument Corporation, United States, 1904. Weston Electrical Instrument Corporation moving iron galvanometer 1904
Moving iron galvanometer, made by Weston Electrical instrument Corporation, USA, 1920. Moving iron galvanometer 1920
Moving iron galvanometer made by Crompton and Company Limited, Chelmsford (England) 1907. Crompton and Company Limited moving iron galvanometer 1907
moving coil galvanometer; intrument inside glass and wood framed case. At top of instrument is a rotating disc, with contols. Main coils are of narrow oval form, which are partially enlcosed in a box. Instrument has two connectors on either side of it. Manufactured by H. Tinsley & Co. Ltd, London. Moving Coil Galvanometer by H. Tinsley & Co. Ltd 1920
Moving iron galvanometer made by General Electric Co. Ltd, England 1940. Moving iron galvanometer made by General Electric Co. Ltd 1940
Moving iron galvanometer made by Metropolitan-Vickers Electrical Company Limited, Manchester (England) 1940. Moving iron galvanometer made by Metropolitan-Vickers Electrical Company Limited 1940
Moving iron galvanometer made by Nalder Bros & Thompson, London (England). Moving iron galvanometer made by Nalder Bros & Thompson
Moving iron galvanometer made by Bertram Thomas Ltd, Manchester (England). Moving iron galvanometer made by Bertram Thomas Ltd
Moving iron galvanometer made by Weir Electrical Instrument Co., London 1941. Moving iron galvanometer made by Weir Electrical Instrument Co 1941
Moving iron galvanometer made by Drake and Gorham Ltd, London 1910. Moving iron galvanometer made by Drake and Gorham Ltd 1910
moving iron galvanometer made by Siemens Brothers & Co. Ltd, in England, United Kingdom, 1910 moving iron galvanometer made by Siemens Brothers & Co 1910
Moving iron galvanometer made by Crompton Parkinson Ltd, London 1935. Crompton Parkinson moving iron galvanometer 1935
Moving iron galvanometer made by Elliott Bros Ltd, London, 1925. Elliott Bros moving iron galvanometer 1925
Moving iron galvanometer made by Elliott Bros Ltd, London, 1920. Moving iron galvanometer made by Elliott Bros Ltd 1920