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Displaying 331 to 350 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Marconi Radio Valve Type DE6 c. 1925 Marconi-Osram Valves. London Glass, bakelite, brass?, assorted metals. 88794
View Record Short Wave Receiver Type 372 Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. London Metal, plastic?, glass. 85745
View Record Telephone Arc Transmitter 1910 Marconi's Wireless Telegraph Co. Ltd. London Ebonised wood, bakelite, mica, brass, teak?, assorted metals, wood 69632
View Record Coherer Receiver Dated 1905 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, glass, ivory, ebonite, assorted metals. 99245
View Record 'Marconi' Crystal Wavemeter Type MC2 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Nickel, steel, glass, ebonite, bakelite, teak. 46042
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 35122
View Record 12 Volt Fleming Valve c. 1905 Royal Ediswan. London Glass, brass?, assorted metals. 77499
View Record Fleming Valve c. 1905 Ediswan. London Copper, glass, brass, assorted metals. 41677
View Record Fleming Valve c. 1905 Ediswan. London Glass, assorted metals, brass. 21803
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, phosphorous, nickel?, plastic?, steel, assorted metals 22908
View Record Marconi-Osram Radio Valve Type R c. 1925 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 82041
View Record Marconi Radio Valve Type DE3 c. 1923 Marconi-Osram Valves. London Glass, steel, plastic?, brass?, assorted metals. 16810
View Record Zaerix Electronic Valve Type KTW61 Mid 20th Century Z & I Aero Services Ltd. London Glass, steel, plastic?, assorted metals. 80385
View Record Ediswan Radio Valve Type ATP4 With Carton Mid 20th Century Siemens Edison Swan Ltd. London Glass, steel, plastic?, assorted metals. 22414
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 35098
View Record Marconi Radio Valve Type DE3C c. 1924 Marconi-Osram Valves. London Glass, bakelite, steel, tungsten, assorted metals. 20731
View Record Marconi Radio Valve Type Q c. 1919 Ediswan. London Glass, steel, assorted metals. 31396
View Record Marconi Radio Valve Type Q c. 1919 Ediswan. London Glass, steel, assorted metals. 70145
View Record Marconi Radio Valve Type Q c. 1918 Ediswan. London Glass, steel, assorted metals. 27357
View Record Marconi Radio Valve Type V24 1920s Marconi Osram Valves. London Glass, steel, assorted metals. 90635

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