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Displaying 271 to 290 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | 'Marconi Otophone' | 1923 | Marconi's Wireless Telegraph Co. Ltd. | London | Leather, celluloid, mahogany, plastic?, bakelite, glass, nickel. | 59451 |
| View Record | Send/Receive Switch Type 103A | Early 20th Century | Marconi International Marine Communication Co. Ltd. | London | Teak, brass, steel, nickel. | 49244 |
| View Record | Triple X-Stopper | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, brass, mahogany, metal alloy. | 87224 |
| View Record | 'Marconi' Auto-Alarm Receiver Type 332 | c.1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, glass, nickel, celluloid?, bakelite?, ebonite. | 41271 |
| View Record | Gray Magnetic Relay Key | c. 1910 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, iron?, ebonite? wood, metal alloy, silver. | 56506 |
| View Record | 'Marconi' Wavemeter Type MP7 | Early 20th Century | Marconi 's Wireless Telegraph Co. Ltd. | London | Carborundum, paper, wood, plastic, ebonite, steel | 49422 |
| View Record | Telephone Jigger Box | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, plastic?, cooper. | 89862 |
| View Record | Cylindrical Reflecting Vertical Galvanometer | c. 1925 | H. Tinsley & Co. | London | Brass, glass, copper, bakelite. | 55299 |
| View Record | 'Marconi' Auto-Alarm Selector Type 333 | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Metal, brass, steel?, aluminium, glass. | 22770 |
| View Record | Portable Aircraft Spark Transmitter 40W | c. 1912 | Marconi's Wireless Telegraphy Co. Ltd. | London | Teak, leather, ebonite, steel, bakelite?, brass. | 19772 |
| View Record | Marconi Crystal Receiver Type 31 | c. 1910 | Marconi's Wireless Telegraph Co. Ltd. | London | Bakelite?, ebonite, teak, brass, steel?, metal. | 98216 |
| View Record | Case For Coherer Receiver | c. 1902 | Marconi's Wireless Telegraph Co. Ltd. | London | Steel, brass. | 91438 |
| View Record | Interrupter Type 144 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Cast iron, nickel, teak. | 53329 |
| View Record | 'Marconi' Amplifier Type GA2 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, leather, steel, assorted metals. | 47978 |
| View Record | Coherer Receiver | 1902 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, steel. | 67916 |
| View Record | Marconi-Reisz Microphone | c. 1923 | Marconi's Wireless Telegraph Co. Ltd. | London | Carbon?, ebonite, mica, marble. | 98482 |
| View Record | Seven-Valve Receiver | 1920 | Marconi Scientific Instrument Co. Ltd. | London | Teak, ebonite, bakelite?, steel. | 41936 |
| View Record | Magnetic Detector | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, steel, ebonite, nickel. | 18119 |
| View Record | Marconiphone Two-Valve Receiver Type 21 | 1925 | Marconiphone Co. Ltd. | London | Bakelite?, ebonite, glass, brass, mahogany, plastic? | 18847 |
| View Record | Amplifier And Detector Type 55A With Headphones | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Glass, teak, steel, brass. | 18067 |