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Displaying 361 to 380 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Marconi Radio Valve Type FE2 c. 1922 Marconi's Wireless Telegraph Co. Ltd. London Glass, nickel?, assorted metals. 68373
View Record Marconi-Osram Radio Valve Type DER c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 43964
View Record Marconi-Osram Radio Valve Type DER 1920s Marconi-Osram Valve Co. Ltd. London Glass, steel, brass?, plastic?, assorted metals. 80189
View Record Marconi Radio Valve Type U10 20th Century Marconi-Osram Valves. London Glass, steel, plastic, assorted metals. 79785
View Record Marconi-Osram Radio Valve Type MPT4 Late 1920s Marconi-Osram Valve Co. Ltd. London Glass, plastic?, steel, assorted metals. 84752
View Record Marconi Radio Valve Type MH4 1930s Marconi-Osram Valves. London Glass, plastic?, nickel, steel, assorted metals. 24996
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 13117
View Record Round Radio Valve Type N c. 1915 Ediswan. London Glass, steel, asbestos, platinum-iridium, assorted metals. 39244
View Record Experimental Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, brass?, platinum. 24865
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 59257
View Record Round Radio Valve Type N c. 1915 Ediswan. London Glass, steel, asbestos, platinum-iridium, assorted metals. 22293
View Record Marconi Radio Thermal Delay Switch DLS-Type Early 20th Century Ediswan. London Glass, steel, bakelite?, assorted metals. 39568
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, ebonite, bakelite, iron. 75969
View Record 'Marconi' Universal Aircraft Telegraph Transmitter/Receiver Type AD6D c. 1928 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, bakelite, steel, ebonite, glass, assorted metals. 94461
View Record Multiple Tuner c. 1907 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, ebonite, brass, copper, bakelite. 28107
View Record 'Marconi' Lifeboat Transmitter Type 241A c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, glass, steel, plastic?, bakelite, assorted metals. 59677
View Record Marconi Crystal Receiver Type 16 1916 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, teak, bakelite, brass, steel?, copper. 63794
View Record Newton Induction Coil c. 1899 Newton & Co. London Mahogany, brass, ebonite, wax, paper, celluloid. 69748
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 32090
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 39800

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