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Displaying 331 to 350 of 655 records
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Heading | Date | Maker | Place | Materials | Inv Num | |
---|---|---|---|---|---|---|
View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 57337 |
View Record | Osram Radio Valve Type P2 | 20th Century | Osram. | England | Glass, bakelite?, steel, assorted metals. | 57431 |
View Record | Early Coherer | c. 1899 | Unknown | France | Glass, copper, nickel, silver, assorted metals. | 57633 |
View Record | Large Iolanda Transformer With Case | Early 20th Century | Unknown | Unknown | Mahogany, metal alloy, brass, copper, wood. | 57720 |
View Record | Potentiometer For Marconi Five-Valve Receiver | 1922 | Marconi Scientific Instrument Co. Ltd. | London | Bakelite?, copper, brass?, steel. | 57736 |
View Record | Marconiphone Universal Baby Crystal Receiver | c. 1924 | Marconiphone Co. Ltd. | England | Plastic, galena, nickel, steel, bakelite. | 58056 |
View Record | Ship's Bridge Telephone | Early 20th Century | Unknown | None | Mahogany?, nickel, bakelite?, copper, plastic, assorted metals. | 58568 |
View Record | Marconiphone Two-Valve Receiver Type V2A | c. 1924 | Marconiphone Co. Ltd. | England | Mahogany, celluloid, ebonite, bakelite, nickel, steel, glass, assorted metals. | 58602 |
View Record | Large Main Condenser With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Wood, jute, brass, iron. | 58903 |
View Record | RCA Radiotron Radio Tube Type 6B7 With Carton | 20th Century | RCA. | USA | Glass, plastic?, steel, assorted metals. | 58967 |
View Record | Osram-GEC Radio Valve Type R4 | c. 1916 | Osram G.E.C. | England | Teak?, glass, brass, tungsten, assorted metals. | 59017 |
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 | Precision Instrument Model EGM2 | Mid 20th Century | Cambridge Instrument Co. Ltd. | Cambridge, England | Brass, iron, assorted metals. | 59269 |
View Record | 'Marconi Otophone' | 1923 | Marconi's Wireless Telegraph Co. Ltd. | London | Leather, celluloid, mahogany, plastic?, bakelite, glass, nickel. | 59451 |
View Record | Multiple Oscillator | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Celluloid, ebonite, steel?, brass. | 59526 |
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 | STC Radio Tube Type 6J5G | Mid 20th Century | Standard Telephones and Cables Ltd. (STC). | England | Glass, plastic?, steel, assorted metals. | 59723 |
View Record | B T-H Plaque | 20th Century | Unknown | Britain | Cast iron, paint. | 59770 |
View Record | Replica Of Parabolic Transmitter For Marconi's Original Beam System | 1920s/1930s | Marconi's Wireless Telegraph Co. Ltd. | England | Wood, copper, brass, steel?, ebonite. | 59943 |
View Record | Marconi Telegraph Communication Chart | c. 1922 | Marconi International Marine Communication Co. Ltd. | London | Wood, glass, paper. | 59984 |