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Displaying 41 to 140 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 |
View Record | Radio Valve Type ARP12 | c. 1939 | Unknown | England | Glass, plastic?, steel, assorted metals. | 23157 |
View Record | Two Ribbed Wooden Pillar Insulators | Early 20th Century | Unknown | Unknown | Wood, brass. | 23387 |
View Record | Instruction Manual For The Marconi Direction Finder Type No. 6 | c. 1916 | Sanders Phillips & Co. Ltd. | London | Paper. | 23434 |
View Record | Marconi Induction Coil | 1899 | Marconi Company. | London | Ebonite, platinum, brass, plastic?, ebonite. | 23658 |
View Record | Set Of Inductors Type TM1438 | 20th Century | Marconi Instruments Ltd. | England | Wood, leather, steel, bakelite | 23891 |
View Record | Marconi Auto-Alarm Type M | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Steel, bakelite, glass, assorted metals. | 24207 |
View Record | Experimental Billi Condenser | c. 1900 | Unknown | Unknown | Copper?, steel?, ebonite, brass, mahogany, plywood, bakelite, celluloid. | 24292 |
View Record | Morse Key Type 100A | Early 20th Century | Marconi International Marine Communication Co. Ltd. | Britain | Nickel, mahogany, ebonite, steel. | 24429 |
View Record | Pair Of Mounted Guard Lamps | Early 20th Century | Unknown | Unknown | Mahogany?, glass, copper, brass. | 24488 |
View Record | Experimental Round Radio Valve Type CA | c. 1915 | Ediswan. | London | Glass, oxide, brass?, platinum. | 24865 |
View Record | Tuning Indicator With Glass Lamp | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahogany, brass, metal alloy, glass, ebonite. | 24927 |
View Record | Bank Of Six Leyden Jar Condensers | 1900 | Unknown | Unknown | Glass, brass, mahogany, teak?, felt. | 24931 |
View Record | Marconi Radio Valve Type MH4 | 1930s | Marconi-Osram Valves. | London | Glass, plastic?, nickel, steel, assorted metals. | 24996 |
View Record | Shunt Regulator | 20th Century | Unknown | Unknown | Iron, bakelite?, brass. | 25048 |
View Record | Hytron Radio Tube Type CV1759 With Carton | Dated 1944 | Hytron Corporation. | Massachusetts, USA | Steel, plastic?, glass, assorted metals. | 25098 |
View Record | Company Seal Embosser Coastal Radio Ltd | 20th Century | Unknown | Unknown | Steel, wood, cooper, baize | 25157 |
View Record | Marconi Radio Valve Type V24 | c. 1919 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 25217 |
View Record | Cold Cathode Ray Tube | c. 1902 | Unknown | Unknown | Glass, mahogany, copper, metal. | 25358 |
View Record | Marconi Radio Valve Type V24 | c. 1925 | Marconi Valves. | England | Glass, steel, assorted metals. | 25470 |
View Record | Marconi Radio Valve Type V24 | c. 1918 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 25691 |
View Record | Ship's Wireless Spark-Gap | 1905 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, cast iron, teak, metal. | 25812 |
View Record | Cossor Radio Valve Type V10 | 20th Century | Cossor. | England | Glass, steel, plastic?, oxide, assorted metals. | 26034 |
View Record | Marconi Radio Valve Type DEQ | c. 1923 | Marconi Valves. | England | Glass, steel, assorted valves. | 26547 |
View Record | GPO Radio Valve Type No 2 | 20th Century | Unknown | Britain | Glass, brass, plastic?, nickel. | 26614 |
View Record | Aerial Lead-In Insulator | Early 20th Century | Unknown | Unknown | Earthenware, copper, iron. | 26677 |
View Record | Mazda Radio Valve Type PY33 With Carton | 1960s | Mazda | England | Glass, steel, plastic?, assorted metals. | 26731 |
View Record | Marzi Microphone | 1910 | Marzi Company. | France | Wood, aluminium, steel. | 27140 |
View Record | Marconi Radio Valve Type Q | c. 1918 | Ediswan. | London | Glass, steel, assorted metals. | 27357 |
View Record | Mullard Wecovalve Radio Valve Peanut Type With Carton | c. 1920 | Mullard Radio Valve Co. Ltd. | England | Glass, steel, plastic?, assorted metals. | 27364 |
View Record | Aerial Switch Type 272 | Early 20th Century | Marconi International Marine Communication Co. Ltd. | England | Wood, peak, steel, nickel, porcelain, ebonite. | 27556 |
View Record | Marconi Receiver Type AD8882B | c. 1939 | Marconi's Wireless Telegraph Co. Ltd. | London | Steel, bakelite?, perspex?, steel. | 27685 |
View Record | Illuminated Globe | 1971 | George Philip & Son Limited | London | Plastic, paper, glass, assorted metals. | 27716 |
View Record | Replica Grasshopper Send-Receive Morse Key | 1970s | Unknown | Unknown | Brass, plastic?, mahogany. | 27753 |
View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 27778 |
View Record | Marconi Telegraph Communication Chart | c. 1922 | Marconi International Marine Communication Co. Ltd. | London | Wood, glass, paper. | 27846 |
View Record | Horn Loudspeaker Type AR19 | c. 1923 | Graham Amplion Ltd. | London | Oak, brass, baize. | 28052 |
View Record | Multiple Tuner | c. 1907 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, ebonite, brass, copper, bakelite. | 28107 |
View Record | Hivac Radio Valve Type CV1052 | Mid 20th Century | Hivac. | England | Glass, plastic?, steel, assorted metals. | 28126 |
View Record | Tuning Condenser | c. 1907 | Marconi's Wireless Telegraph Co. Ltd. | England | Ebonite, steel?, nickel. | 28159 |
View Record | Graduated Swivelling Coils For Triple Crystal Detector | Early 20th Century | Unknown | Unknown | Copper, steel, tape. | 28254 |
View Record | Marconi Crystal Receiver Type 31 | 1910 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, ebonite, teak, metal. | 28284 |
View Record | Radio Receiver Type BC342N | 1940s | Unknown | Unknown | Steel, bakelite, glass, nickel, assorted metals. | 28392 |
View Record | High-Discrimination Communication Receiver Type Rg 44 | c. 1948 | Marconi's Wireless Telegraph Co. Ltd. | Chelmsford, England | Steel, glass, bakelite, perspex, assorted metals. | 28532 |
View Record | Direct Reading Portable Decremeter | Dated 1909 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, leather, ebonite, bakelite. | 28627 |
View Record | Radio Valve Type ML6C | Mid 20th Century | Unknown | Unknown | Glass, steel, ceramics, assorted metals. | 28855 |
View Record | Large Rotary Converter | Dated 1915 | Electric Construction Co. Ltd. | Wolverhampton, England | Iron, steel, brass, copper, metal alloy. | 29140 |
View Record | Ship's Transmitter Jigger | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, mahogany. | 29208 |
View Record | Radio Valve Type ARP12 | c. 1939 | Unknown | England | Glass, plastic?, steel, assorted metals. | 29233 |
View Record | Marconi Radio Valve Type DEQ | c. 1923 | Marconi Valves. | England | Glass, steel, assorted metals. | 29390 |
View Record | Direction-Finding Coil For Receiver Type R1155A | c. 1940 | Air Ministry. | Unknown | Iron, bakelite?, plastic?, steel. | 29505 |
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