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Displaying 51 to 100 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| 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 Q | c. 1918 | Ediswan. | London | Glass, steel, assorted metals. | 81565 |
| View Record | Marconi Radio Valve Type Q | c. 1918 | Ediswan. | London | Glass, steel, assorted metals. | 45902 |
| View Record | Marconi Radio Valve Type Q | c. 1918 | Ediswan. | London | Glass, steel, assorted metals. | 74162 |
| View Record | Round Radio Valve Type CA | c. 1915 | Ediswan. | London | Glass, oxide, platinum, asbestos, brass, ebonite. | 13117 |
| View Record | Round Radio Valve Type N | c. 1915 | Ediswan. | London | Glass, steel, asbestos, platinum-iridium, assorted metals. | 39244 |
| View Record | Experimental Round Radio Valve Type CA | c. 1915 | Ediswan. | London | Glass, oxide, brass?, platinum. | 24865 |
| View Record | Round Radio Valve Type N | c. 1915 | Ediswan. | London | Glass, steel, asbestos, platinum-iridium, assorted metals. | 22293 |
| View Record | Marconi Radio Thermal Delay Switch DLS-Type | Early 20th Century | Ediswan. | London | Glass, steel, bakelite?, assorted metals. | 39568 |
| View Record | 12 Volt Fleming Valve | c. 1905 | Ediswan. | London | Wood, baize, brass?, nickel, glass, ebonite. | 89981 |
| View Record | 4 Volt Experimental Fleming Oscillation Valve | 1904 | Ediswan. | London | Wood, glass, steel?, brass. | 86405 |
| View Record | 12 Volt Fleming Valve | c. 1905 | Ediswan. | London | Mahogany?, glass, ebonite, metal alloy, nickel, assorted metals. | 89342 |
| View Record | Large Rotary Converter | Dated 1915 | Electric Construction Co. Ltd. | Wolverhampton, England | Iron, steel, brass, copper, metal alloy. | 29140 |
| View Record | Stud Field Regulating Rheostat | Early 20th Century | Electric Construction Co. Ltd. | Wolverhampton, England | Brass, steel, iron, metal alloys | 65352 |
| View Record | Stud Motor Starter | Early 20th Century | Electric Construction Co. Ltd. | Wolverhampton, England | Brass, copper, iron, steel, metal alloys. | 90897 |
| View Record | Gulstad Relay | Early 20th Century | Elliot Brothers (London) Ltd. | London | Metal, brass, glass, nickel. | 91761 |
| View Record | Morse Key | Early 20th Century | Elliot Brothers (London) Ltd. | London | Teak, bakelite?, brass. | 70589 |
| View Record | Studio Photograph of H. Cuthbert Hall? | Early 20th Century | Elliott & Fry | London | Paper, oak?, brass, nylon? | 98535 |
| View Record | Image Orthicon Tube | Mid 20th Century | English Electric Valve Co. Ltd. | England | Glass, bakelite?, steel, nickel, assorted metals. | 39508 |
| View Record | 'Megger' Resistance Meter | Early 20th Century | Evershead & Vignoles Ltd. | London | Teak, glass, steel?, brass, bakelite, assorted metals. | 45250 |
| View Record | Exhibition Medal Franco-British Exhibition | Dated 1908 | F. Bowcher. | Birmingham | Gilt silver. | 93608 |
| View Record | Fama Radio Valve Type R | c. 1916 | Fama. | Holland | Glass, brass, bakelite?, assorted metals. | 73073 |
| View Record | Ferranti Radio Valve Type NSP1 | Mid 20th Century | Ferranti. | Britain | Glass, steel, bakelite, assorted metals. | 19461 |
| View Record | Proof Print of Marconi | c. 1914 | G. B. Black | London | Paper, plastic, cork. | 56351 |
| View Record | Medal Enrico Silvani | Dated 1927 | G. Romagnoli. | Unknown | Bronze | 41328 |
| View Record | Signal Hall Kite | c. 1901 | G.C. Spencer & Sons. | London | Linen | 74328 |
| View Record | Onwood's Patent Ohmmeter | Early 20th Century | Gambrell Brothers Ltd. | London | Teak?, glass, nickel, brass, ebonite, assorted metals. | 95036 |
| View Record | Gecophone Crystal Set | c. 1921 | GEC. | Unknown | Mahogany, bakelite?, ebonite, nickel, brass, steel | 80012 |
| View Record | Giant Radio Valve | 1910s | GEC. | England | Glass, polymer, brass, plastic?, nickel. | 70075 |
| View Record | All-Wave Super 6 Radiogram | 1937 | GEC. | England | Walnut, glass, plastic, nylon?, brass, assorted metals. | 97710 |
| View Record | Leclanche Cell | Early 20th Century | General Electric Co. Ltd. | USA | Glass, earthenware?, steel. | 78623 |
| View Record | GEC Bakelite Radio Receiver | Mid 20th Century | General Electric Co. Ltd. | England | Hardened glass?, bakelite | 95767 |
| View Record | Ink-Writer | c. 1900 | General Post Office. | England | Mahogany, brass, glass, paper. | 87203 |
| View Record | Illuminated Globe | 1971 | George Philip & Son Limited | London | Plastic, paper, glass, assorted metals. | 27716 |
| View Record | Exhibition Medal Esposizione Internazionale | Dated 1956 | Giannino. | Italy | Gilt metal. | 53696 |
| View Record | Horn Loudspeaker Type AR19 | c. 1923 | Graham Amplion Ltd. | London | Oak, brass, baize. | 28052 |
| View Record | Three-Position Switch | Early 20th Century | Griffin. | London | Mahogany, brass, ebonite, celluloid. | 40839 |
| View Record | Tuned Transmitter | 1899 | Guglielmo Marconi. | England | Wood, glass, brass, assorted metals. | 98396 |
| View Record | Marconi's Coherer Receiver | 1896 | Guglielmo Marconi. | England | Steel, teak, brass, glass, mahogany?, ivory, assorted metals. | 86390 |
| View Record | Early Small Coherer | c. 1895 | Guglielmo Marconi. | Italy | Glass, elastic, copper?, assorted metals. | 98899 |
| View Record | Marconi's Parabolic Transmitter | c. 1896 | Guglielmo Marconi. | England | Wood, copper, ebonite, steel?, brass. | 53586 |
| View Record | Marconi's Parabolic Receiver | c. 1896 | Guglielmo Marconi. | England | Wood, copper, nickel, glass, assorted metals. | 31092 |
| View Record | Tilting Board | c. 1899 | Guglielmo Marconi. | England | Iron?, wood. | 46382 |
| View Record | Portrait of Marconi | 1914 | Gustave Muranyi | Unknown | Oil, canvas, wood, brass, paper, cotton? | 65827 |
| View Record | Company Seal Embosser W.W. Buckley & Son Ltd | 20th Century | H. Howes & Co. Ltd. | London | Steel, cooper, wood. | 73461 |
| View Record | Cylindrical Reflecting Vertical Galvanometer | c. 1925 | H. Tinsley & Co. | London | Brass, glass, copper, bakelite. | 55299 |
| View Record | Drysdale-Tinsley Vibration Galvanometer | 20th Century | H. Tinsley & Co. | London | Brass, iron, glass, bakelite?, mahogany, plastic. | 17033 |
| View Record | Standard Resistor Type 1682 | 20th Century | H. Tinsley & Co. | London | Chromium, plastic?, enamelled metal. | 35998 |