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Displaying 41 to 90 of 655 records
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Heading | Date | Maker | Place | Materials | Inv Num | |
---|---|---|---|---|---|---|
View Record | Bank Of Six Leyden Jar Condensers | 1900 | Unknown | Unknown | Glass, brass, mahogany, felt. | 17579 |
View Record | Decade Condenser Type 21F | Early 20th Century | Muirhead & Co. Ltd. | Britain | Teak, bakelite, plastic?, steel. | 17600 |
View Record | Induction Coil | 1900s | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, ebonite, ivory?, copper. | 17841 |
View Record | Amplifier And Detector Type 55A With Headphones | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Glass, teak, steel, brass. | 18067 |
View Record | RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, ribbon, steel, plastic?, assorted metals. | 18078 |
View Record | Tuning Condenser | c. 1915 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, ebonite, celluloid, brass. | 18093 |
View Record | Magnetic Detector | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, steel, ebonite, nickel. | 18119 |
View Record | Transmitter Tuner Type MC13 | c. 1930 | Unknown | Unknown | Steel, nickel, plastic, assorted metals. | 18269 |
View Record | Magnetic Detector | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, glass, brass, ebonite, bakelite, iron. | 18289 |
View Record | Facsimile Of Fleming Letter | c. 1904 | J.A. Fleming. | London | Paper. | 18292 |
View Record | Metal Component Pair FT-162 For Radio | 20th Century | Unknown | Unknown | Iron?, steel, nickel. | 18465 |
View Record | Mullard Radio Valve Type ORA/B | c. 1922 | Mullard Radio Valve Co. | Unknown | Glass, rubber?, assorted metals. | 18833 |
View Record | Marconiphone Two-Valve Receiver Type 21 | 1925 | Marconiphone Co. Ltd. | London | Bakelite?, ebonite, glass, brass, mahogany, plastic? | 18847 |
View Record | Direct Reading Portable Decremeter | Dated 1909 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, brass, ebonite, bakelite, leather. | 19011 |
View Record | Mullard Wecovalve Radio Valve Peanut Type | c. 1920 | Mullard Radio Valve Co. Ltd. | England | Glass, steel, plastic?, assorted metals | 19239 |
View Record | Quenched Spark Disc Unit | 20th Century | Unknown | Unknown | Iron, nickel, ebonite, assorted metals. | 19420 |
View Record | Early Experimental Coherer | c. 1902 | Unknown | Unknown | Glass, copper, cork, iron, assorted metals. | 19433 |
View Record | Ferranti Radio Valve Type NSP1 | Mid 20th Century | Ferranti. | Britain | Glass, steel, bakelite, assorted metals. | 19461 |
View Record | Triotron Radio Tube Type 6F8G With Carton | 20th Century | Triotron Radio. | Austria | Plastic?, glass, steel, assorted metals. | 19616 |
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 Radio Valve Type 42A | 20th Century | Officine Marconi-Genova. | Italy | Glass, steel, plastic?, assorted metals. | 19824 |
View Record | Radio Call Sign | Early 20th Century | Unknown | Unknown | Mahogany, paint. | 20091 |
View Record | Marconi Radio Valve Type MH4 | c. 1931 | Marconi's Wireless Telegraph Co. Ltd. | England | Cooper, steel, plastic?, assorted metals. | 20104 |
View Record | Myers Dry Battery Radio Tube With Carton | c. 1924 | E. B. Myers Co. Ltd. | Canada | Glass, bakelite, steel, assorted metals. | 20141 |
View Record | Company Seal Embosser Vulcan Foundry Ltd | 20th Century | Unknown | Britain | Bronze?, iron?, steel. | 20262 |
View Record | Emergency Quenched-Gap Transmitter Type 335 | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, iron, copper, ebonite, nickel, glass, steel, assorted metals. | 20374 |
View Record | Marconi Radio Valve Type DEQ | c. 1923 | Marconi-Osram Valves. | England | Glass, steel, assorted metals. | 20655 |
View Record | Company Seal Embosser Fan Manufacturing Company | 20th Century | Witherby & Co. Ltd. | London | Steel, baize. | 20679 |
View Record | Tuning Condenser No 4 | c. 1906 | Marconi's Wireless Telegraph Co. Ltd. | England | Ebonite, brass, paper. | 20696 |
View Record | Marconi Radio Valve Type DE3C | c. 1924 | Marconi-Osram Valves. | London | Glass, bakelite, steel, tungsten, assorted metals. | 20731 |
View Record | Marconi Bellini-Tosi Direction Finder | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, bakelite, ebonite, steel?, copper. | 20815 |
View Record | Morse Tape Inker | c. 1900 | Siemens Brothers. | London | Brass, mahogany, paper, assorted metals. | 20877 |
View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 20953 |
View Record | Marconi's Oil Righi Oscillator | 1895 | Augusto Righi. | Bologna, Italy | Mahogany, brass, ebonite, celluloid. | 21300 |
View Record | Marconi Crystal Receiver Type 31C | 1910 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, nickel, mahogany?, bakelite. | 21573 |
View Record | Syntoniser | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite?, iron?, teak. | 21593 |
View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 21726 |
View Record | 4 Volt Fleming Oscillation Valve | c. 1905 | Royal Ediswan. | London | Brass, glass, assorted metals. | 21763 |
View Record | Fleming Valve | c. 1905 | Ediswan. | London | Glass, assorted metals, brass. | 21803 |
View Record | Mullard Radio Valve Type PM4 | 1930s | Mullard. | England | Glass, steel, bakelite, assorted metals. | 21856 |
View Record | 'Marconi' Self-Monitoring Receiver Type AD98 | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Steel, plastic?, perspex, assorted metals. | 22068 |
View Record | Company Seal Embosser Dick Kerr & Company | 20th Century | Jordan & Sons Ltd. | London | Cooper, brass, steel, wood, baize. | 22130 |
View Record | Forward 'B' Spark Wavemeter No. 1339 | c. 1918 | War Department Signals Flying Corps. | Britain | Steel, brass, bakelite?, teak, carborundum. | 22136 |
View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 22269 |
View Record | Round Radio Valve Type N | c. 1915 | Ediswan. | London | Glass, steel, asbestos, platinum-iridium, assorted metals. | 22293 |
View Record | Ediswan Radio Valve Type ATP4 With Carton | Mid 20th Century | Siemens Edison Swan Ltd. | London | Glass, steel, plastic?, assorted metals. | 22414 |
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 | RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, ribbon, steel, plastic?, assorted metals. | 22875 |
View Record | Marconi-Osram Radio Valve Type R | c. 1923 | Marconi-Osram Valve Co. Ltd. | London | Glass, phosphorous, nickel?, plastic?, steel, assorted metals | 22908 |
View Record | Marconi Commemorative Plaque | Dated 1912 | Unknown | Italy | Brass | 23050 |
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