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Description: Cylindrical ignitron mounted on wooden base, with wooden supports and flex, made by B.T.H. , English, 1935-1960 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: ignitrons Temporal: 1935-1960 Source: Science Museum Creator: British Thomson-Houston Co. Ltd Identifier: A657096 Go to resource More Like this...
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