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Displaying 561 to 610 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | Early Coherer | c. 1899 | Unknown | Unknown | Glass, copper, nickel, silver, assorted metals. | 88920 |
| View Record | RCA Radiotron Radio Tube 42 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 89266 |
| View Record | 12 Volt Fleming Valve | c. 1905 | Ediswan. | London | Mahogany?, glass, ebonite, metal alloy, nickel, assorted metals. | 89342 |
| View Record | Small Morse Key | Early 20th Century | Unknown | Unknown | Steel, plastic?, nickel, iron, copper. | 89483 |
| View Record | Reproduction Photograph Of Dame Melba | 20th Century | Unknown | England | Cardboard, photographic paper. | 89558 |
| View Record | Telephone Jigger Box | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, plastic?, cooper. | 89862 |
| View Record | 12 Volt Fleming Valve | c. 1905 | Ediswan. | London | Wood, baize, brass?, nickel, glass, ebonite. | 89981 |
| View Record | Marconiphone Two-Valve Receiver Type V2A | c. 1924 | Marconiphone Co. Ltd. | England | Mahogany, celluloid, ebonite, bakelite, nickel, steel, assorted metals. | 90029 |
| View Record | Aircraft Direction Finder Receiver Type AD16 | c. 1928 | Marconi's Wireless Telegraph Co. Ltd. | London | Wood, cloth, bakelite, ebonite, glass, celluloid | 90152 |
| View Record | Carborundum Detector | Early 20th Century | Unknown | Unknown | Ebonite, nickel. | 90595 |
| View Record | Marconi Radio Valve Type V24 | 1920s | Marconi Osram Valves. | London | Glass, steel, assorted metals. | 90635 |
| View Record | Stud Motor Starter | Early 20th Century | Electric Construction Co. Ltd. | Wolverhampton, England | Brass, copper, iron, steel, metal alloys. | 90897 |
| View Record | Audion Radio Valve | c. 1907 | Lee De Forest. | USA | Glass, assorted metals. | 90974 |
| View Record | Walnut Wardrobe | c. 1930 | Unknown | Unknown | Walnut, brass, glass, metal. | 91156 |
| View Record | Case For Coherer Receiver | c. 1902 | Marconi's Wireless Telegraph Co. Ltd. | London | Steel, brass. | 91438 |
| View Record | Company Seal Embosser Betram Thomas Ltd | 20th Century | Jordan & Sons Ltd. | London | Wood, steel, cooper, brass, metal. | 91470 |
| View Record | Radio Valve Type CV1342 | 1950s | Unknown | Britain | Glass, plastic?, steel, assorted metals. | 91546 |
| View Record | Righi Oscillator | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Plastic, celluloid, mahogany, brass, ebonite, bakelite | 91607 |
| View Record | Radio Valve Type ARP12 | c. 1939 | Unknown | England | Glass, plastic?, steel, assorted metals. | 91673 |
| View Record | RCA Radiotron Radio Tube Type 80 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 91686 |
| View Record | Double-Pole Single-Throw Switch | Early 20th Century | Unknown | England | Ebonite, wood, teak?, steel, brass, copper alloy. | 91708 |
| View Record | Gulstad Relay | Early 20th Century | Elliot Brothers (London) Ltd. | London | Metal, brass, glass, nickel. | 91761 |
| View Record | Toothed Disc For Rotary Spark Discharger | c. 1906 | Unknown | Unknown | Brass | 91762 |
| View Record | Balloon Envelope Radio Valve | 20th Century | Unknown | Unknown | Glass, steel, bakelite, assorted metals. | 92020 |
| View Record | Marconi Radio Valve Type V24 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 92047 |
| View Record | Marconi Bronze Bust | 1920 | Claire Sheridan. | England | Bronze, marble. | 92061 |
| View Record | Call Sign | 20th Century | Unknown | Unknown | Mahogany, plastic, metal. | 92097 |
| View Record | Main Starter Switch | Early 20th Century | Unknown | Unknown | Iron, brass, copper, celluloid?, bakelite?, wood. | 92107 |
| View Record | Townsend Wavemeter | Dated 1918 | Marconi's Wireless Telegraph Co. Ltd | London | Bakelite?, teak, paper/cardboard?, plastic, ebonite. | 92109 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 92559 |
| View Record | Walnut Safe Cabinet | c. 1930 | Unknown | Unknown | Walnut, brass, steel. | 92745 |
| View Record | Marconi Radio Valve Type FE2 | c. 1922 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel?, assorted metals. | 92775 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 92814 |
| View Record | Marconi Crystal Receiver A Type RB3 | 1922 | Marconi's Wireless Telegraph Co. Ltd. | England | Ebonite, bakelite, steel, nickel, brass, paper, assorted metals. | 93260 |
| View Record | Exhibition Medal Franco-British Exhibition | Dated 1908 | F. Bowcher. | Birmingham | Gilt silver. | 93608 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, plastic?, assorted metals. | 93609 |
| View Record | 4 Volt Fleming Valve | c. 1905 | Royal Ediswan. | London | Brass, glass, assorted metals. | 93660 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 93797 |
| View Record | Mullard Radio Valve Type PY33 | 1960s | Mullard. | Britain | Glass, steel, plastic?, assorted metals. | 93858 |
| View Record | Small Ohmmeter | Early 1920s | Cambridge & Paul Instrument Co. Ltd. | England | Teak, brass, copper, ebonite, bakelite. | 93933 |
| View Record | Experimental Two-Valve Set | c. 1916 | Unknown | Unknown | Ebonite, teak, brass. | 94035 |
| View Record | 1901 Transatlantic Billi Condenser | c. 1901 | Unknown | Unknown | Copper, waxed paper. | 94060 |
| View Record | British-Style Radio Valve | 20th Century | Unknown | Britain | Glass, bakelite, nickel, steel, assorted metals. | 94143 |
| View Record | Newton Induction Coil | 1897 | Newton & Co. | London | Mahogany, brass, ivory?, celluloid, ebonite. | 94316 |
| 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 | Marconi Radio Valve Type R | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, nickel, steel?, tungsten, assorted metals. | 94475 |
| View Record | Marconi Radio Valve Type DEV | c. 1923 | Marconi Valves. | England | Glass, steel, assorted metals. | 94536 |
| View Record | Portrait of Marconi | Dated 1912 | A Chevalier Taylor | London | Oil, canvas, wood, plaster, cork, brass, paper, steel, nylon? | 94575 |
| View Record | Replica Morse Key | Late 20th Century | Unknown | Unknown | Teak, plastic?, brass. | 94821 |
| View Record | Onwood's Patent Ohmmeter | Early 20th Century | Gambrell Brothers Ltd. | London | Teak?, glass, nickel, brass, ebonite, assorted metals. | 95036 |