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Scientific Apparatus
Radar switch tube, anti-submarine

Russian copy of Western Electric Mark II 5D21, anti-submarine radar switch tube by H. E. Mendenhall (CIT 1927), J. Westsan and C. H. Elmendorf (CIT 1936). Found on Oregon beach ca 1948. The Mark II was used in anti-submarine warfare, especially against Japanese submarines. (See Mendenhall file.) Manufacturer: Russian copy of Western Electric.

ID: 1981-00030
Mendenhall, Hallam E.

Creation Jan. 1, 1940

LENGTH: 6 inches tall approx.; QUANTITY: 1

Topics: Electronics, World War II

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