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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | 'Marconi' Wavemeter Type No 2 | c. 1906 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, glass, steel, ebonite, leather, assorted metals. | 52068 |
| View Record | 'Marconi' Wavemeter Instruction Leaflet | c. 1906 | Marconi's Wireless Telegraph Co. Ltd. | London | Paper. | 98851 |
| View Record | Marconi-Osram Radio Valve Type DET 1A | 20th Century | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel-plated, brass, plastic?, assorted metals. | 64933 |
| View Record | 12 Volt Fleming Valve | c. 1905 | Ediswan. | London | Wood, baize, brass?, nickel, glass, ebonite. | 89981 |
| View Record | Marconi Radio Valve Type MT1 | c. 1919 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, assorted metals. | 48681 |
| View Record | 'Marconi' Tuning Fork | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, copper, nickel, steel, iron. | 87284 |
| View Record | 'Marconi' Tuning Fork Type BS10 | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, copper, nickel, steel, iron. | 69685 |
| View Record | Magnetic Detector | 1907 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, ebonite, bakelite, iron. | 99266 |
| View Record | 18-Inch Induction Coil | 1898 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, ebonite, copper, ivory?, steel. | 81193 |
| View Record | Morse Key Type 365 | 20th Century | Marconi International Marine Communication Co. Ltd. | London | Steel, enamel, brass, nickel, ebonite. | 83986 |
| View Record | Variometer And Sliding Capacitor | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, copper, ebonite, nickel, steel. | 44318 |
| View Record | Experimental Fleming Valve | c. 1889 | Prof. J.A. Fleming. | London | Glass, nickel, steel, ebonite, wood. | 85593 |
| View Record | 4 Volt Experimental Fleming Oscillation Valve | 1904 | Ediswan. | London | Wood, glass, steel?, brass. | 86405 |
| View Record | Candlestick Microphone | c. 1927 | Sterling Telephone & Electric Co. Ltd. | London | Bakelite, steel, plastic, assorted metals. | 78582 |
| View Record | Three-Position Switch | Early 20th Century | Griffin. | London | Mahogany, brass, ebonite, celluloid. | 40839 |
| View Record | Onwood's Patent Ohmmeter | Early 20th Century | Gambrell Brothers Ltd. | London | Teak?, glass, nickel, brass, ebonite, assorted metals. | 95036 |
| View Record | Morse Tape Inker | c. 1900 | Siemens Brothers. | London | Brass, mahogany, paper, assorted metals. | 20877 |
| View Record | Variometer | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, rope, porcelain, mahogany, brass, bakelite. | 96466 |
| View Record | Marconi Bellini-Tosi Direction Finder | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, bakelite, ebonite, steel?, copper. | 78859 |
| View Record | Marconi Radio Valve Type MT1 | Early 20th Century | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, assorted metals. | 46376 |