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Displaying 221 to 320 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | Two Ribbed Wooden Pillar Insulators | Early 20th Century | Unknown | Unknown | Wood, brass. | 23387 |
| View Record | Coil-Type Testing Buzzer With Case | Early 20th Century | Unknown | Unknown | Wood, brass, copper, fibre, ebonite. | 87609 |
| View Record | Small Buzzer Key With Base | Early 20th Century | Unknown | Unknown | Mahogany, brass, copper, plastic. | 51297 |
| View Record | Two High Frequency Chokes In Mounted Cases | Early 20th Century | Unknown | Unknown | Mahogany, porcelain, copper, teak. | 70536 |
| View Record | Ship's Bridge Telephone | Early 20th Century | Unknown | None | Mahogany?, nickel, bakelite?, copper, plastic, assorted metals. | 58568 |
| View Record | Radio Call Sign | Early 20th Century | Unknown | Unknown | Mahogany, paint. | 20091 |
| View Record | Tuning Condenser With Capacitor Box | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, wood, ebonite, bakelite, celluloid, nickel, plywood. | 48535 |
| View Record | 'Marconi' Wavemeter | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Boxwood, steel, bakelite?, leather, ebonite. | 56547 |
| View Record | Experimental Two-Valve Set | c. 1916 | Unknown | Unknown | Ebonite, teak, brass. | 76048 |
| View Record | Marconi Crystal Receiver With Valve | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, teak, bakelite, brass, steel?, copper. | 99012 |
| 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 | Marconi Radio Valve Type Q | c. 1916 | Ediswan. | London | Glass, steel, assorted metals. | 33191 |
| View Record | Round Radio Valve Type CA | c. 1915 | Ediswan. | London | Glass, oxide, platinum, asbestos, brass, ebonite. | 32845 |
| View Record | Osram-GEC Radio Valve Type R4 | c. 1916 | Osram G.E.C. | England | Teak?, glass, brass, tungsten, assorted metals. | 59017 |
| View Record | Round Radio Valve Type CA | c. 1915 | Ediswan. | London | Glass, oxide, platinum, asbestos, brass, ebonite. | 35122 |
| View Record | Fama Radio Valve Type R | c. 1916 | Fama. | Holland | Glass, brass, bakelite?, assorted metals. | 73073 |
| 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 Crystal Receiver Type 16 | 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, teak, bakelite, brass, steel?, copper. | 63794 |
| View Record | Tuning Condenser | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, ebonite, celluloid. | 66117 |
| View Record | Tuning Condenser | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, ebonite, celluloid, brass. | 75237 |
| View Record | Tuning Condenser | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, ebonite, celluloid, brass, bakelite. | 34701 |
| View Record | Tuning Condenser | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, ebonite, celluloid, brass, bakelite. | 96057 |
| View Record | Small Tuning Condenser | c. 1916 | Marconi's Wireless Telegrap Co. Ltd. | England | Mahogany?, ebonite, bakelite, celluloid, brass. | 69944 |
| 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 | Instruction Manual For The Marconi Direction Finder Type No. 6 | c. 1916 | Sanders Phillips & Co. Ltd. | London | Paper. | 23434 |
| View Record | Experimental Two-Valve Set | c. 1916 | Unknown | Unknown | Ebonite, teak, brass. | 94035 |
| View Record | Telephone Jigger Box | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, plastic?, cooper. | 89862 |
| View Record | Instruction Manuals For Marconi Crystal Receiver Type 16 | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Paper. | 39535 |
| View Record | Short Wave Receiver Type CM294C | Dated 1917 | Marconi's Wireless Telegraph Co. of America. | USA | Ebonite, mahogany?, brass, nickel, bakelite, copper, aluminium?, steel. | 46600 |
| View Record | Marconi Radio Valve Type R | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, nickel, steel?, tungsten, assorted metals. | 94475 |
| View Record | Osram-GEC Radio Valve Type R4 | 1917 | Osram-GEC. | England | Teak?, glass, copper?, tungsten, assorted metals. | 96640 |
| View Record | Siemens & Halske Experimental Radio Valve | c. 1917 | Siemens & Halske. | Germany | Glass, bakelite?, steel, assorted metals. | 50748 |
| View Record | Album of Direction Finder | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Paper. | 34635 |
| View Record | Forward Spark 'B' Wavemeter No. 1511 | c. 1918 | War Department Signals Flying Corps. | Britain | Steel, brass, bakelite?, teak, carborundum. | 12772 |
| View Record | Empty Case Of Forward Spark 'B' Wavemeter No. 2001 | c. 1918 | War Department Signals Flying Corps. | Britain | Teak. | 71985 |
| View Record | Empty Case Of Forward Spark 'B' Wavemeter No. 1360 | c. 1918 | War Department Signals Flying Corps. | Britain | Teak | 88505 |
| View Record | Empty Case Of Forward Spark 'B' Wavemeter | c. 1918 | War Department Signals Flying Corps. | Britain | Teak | 37889 |
| View Record | Amplifier Type 91 | c. 1918 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, nickel, glass, steel? bakelite. | 39440 |
| View Record | Variable Pitch Generator Windmill | Early 20th Century | Unknown | Unknown | Metal alloy, iron. | 32380 |
| View Record | Osram Radio Valve Type R | c. 1918 | Osram. | England | Glass, tungsten, brass?, steel, assorted metals. | 80773 |
| View Record | GPO Radio Valve Type No 2 | 20th Century | Unknown | Britain | Glass, brass, plastic?, nickel. | 26614 |
| View Record | Large Switchboard Type 95 | Early 20th Century | Marconi International Marine Communication Co. Ltd. | England | Wood, iron, glass, nickel, assorted metals. | 12779 |
| View Record | Forward 'B' Spark Wavemeter No. 1339 | c. 1918 | War Department Signals Flying Corps. | Britain | Steel, brass, bakelite?, teak, carborundum. | 22136 |
| View Record | Townsend Wavemeter | c.1918 | Marconi's Wireless Telegraph Co. Ltd. | London | Steel, bakelite?, teak, plastic, cardboard. | 78507 |
| View Record | Townsend Wavemeter | Dated 1918 | Marconi's Wireless Telegraph Co. Ltd | London | Bakelite?, teak, paper/cardboard?, plastic, ebonite. | 92109 |
| View Record | Silvertown Condensor | Marked 1918 | Silvertown. | USA | Brass, ebonite, iron?, teak. | 86740 |
| View Record | 'Marconi' Amplifier Type GA2 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, leather, steel, assorted metals. | 47978 |
| View Record | Forward Spark 'B' Wavemeter No. 2006 | c. 1918 | War Department Signals Flying Corps. | Britain | Steel, brass, bakelite?, teak, carborundum. | 56341 |
| View Record | Combined Switchboard Type 277 And Fuseboard Type 279 | Early 20th Century | Marconi International Marine Communication Co. Ltd. | England | Steel, metal, glass, nickel, bakelite | 17193 |
| 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. | 45902 |
| View Record | Marconi Radio Valve Type Q | c. 1918 | Ediswan. | London | Glass, steel, assorted metals. | 81565 |
| View Record | Portable Valve Transmitter | 1919 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, nickel, teak, bakelite?, paper. | 61008 |
| 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 V24 | c. 1918 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 60590 |
| View Record | Marconi Radio Valve Type Q | c. 1918 | Ediswan. | London | Glass, steel, assorted metals. | 74162 |
| View Record | Marconi Radio Valve Type MT1 | c. 1919 | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, assorted metals. | 48681 |
| View Record | B T-H Plaque | 20th Century | Unknown | Britain | Cast iron, paint. | 59770 |
| View Record | Instruction Booklets For Marconi Wavemeters | c. 1919 | Sanders, Phillips & Co. Ltd. | London | Paper. | 86206 |
| View Record | 'Marconi' 1˝KW Quenched Spark Gap Transmitter Type QG | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, steel, iron, nickel, porcelain, copper, assorted metals. | 46329 |
| View Record | Generator Propellor | Early 20th Century | Unknown | Unknown | Steel, mahogany. | 51047 |
| View Record | Generator Propellor | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | Unknown | Laminated mahogany, brass. | 32068 |
| View Record | Morse Key Type 971 | 20th Century | Marconi Company. | Britain | Enamel, ebonite, plastic, steel. | 95560 |
| View Record | Telephone Transformer Type 191A | Early 20th Century | Marconi International Marine Communication Co. Ltd. | England | Hardwood, ebonite, steel. | 71080 |
| View Record | Seven-Valve Receiver | 1920 | Marconi Scientific Instrument Co. Ltd. | London | Teak, ebonite, bakelite?, steel. | 41936 |
| 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 | Marconi Note Magifier Type 227B | c. 1920 | Marconi International Marine Communication Co. Ltd. | England | Teak, chromium, bakelite?, ebonite. | 76594 |
| View Record | Drysdale-Tinsley Vibration Galvanometer | 20th Century | H. Tinsley & Co. | London | Brass, iron, glass, bakelite?, mahogany, plastic. | 17033 |
| View Record | Marconi Receiver Type 226B | c. 1920 | Marconi International Marine Communication Co. Ltd. | England | Teak, chromium, plastic?, ebonite. | 40124 |
| View Record | Marconi Long Wave Panel Type 229B | c. 1920 | Marconi International Marine Communication Co. Ltd. | England | Teak, chromium, bakelite?, ebonite. | 41345 |
| View Record | Shunt Regulator | 20th Century | Unknown | Unknown | Iron, bakelite?, brass. | 25048 |
| View Record | Shunt Regulator Type O | 20th Century | Unknown | Unknown | Iron, bakelite?, brass. | 72885 |
| View Record | Shunt Regulator Type OA | 20th Century | Unknown | Unknown | Brass, wood?, copper, iron. | 79427 |
| View Record | Marconi Bronze Bust | 1920 | Claire Sheridan. | England | Bronze, marble. | 92061 |
| View Record | Marconi Bronze Bust | Dated 1920 | Claire Sheridan. | England | Bronze, marble. | 46043 |
| View Record | Rotating Multiple Stamp Holder | 20th Century | E.M.R. | London | Steel | 40066 |
| View Record | Marconi Radio Valve Type V24 | c. 1919 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 25217 |
| View Record | Marconi Radio Valve Type V24 | c. 1919 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 49744 |
| View Record | Mullard Wecovalve Radio Valve Peanut Type | c. 1920 | Mullard Radio Valve Co. Ltd. | England | Glass, steel, plastic?, assorted metals. | 40365 |
| View Record | 'Marconi' Lifeboat Transmitter Type 241A | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, glass, steel, plastic?, bakelite, assorted metals. | 59677 |
| View Record | Tuning Condenser | Early 20th Century | Unknown | Unknown | Brass, ebonite, assorted metals. | 44153 |
| View Record | Morse Key Type 971 | 20th Century | Marconi Company | Britain | Enamel, ebonite, plastic, steel. | 42110 |
| View Record | Morse Key Type 365 | 20th Century | Marconi International Marine Communication Co. Ltd. | London | Steel, enamel, brass, nickel, ebonite. | 83986 |
| View Record | Morse Twin-Contact Key | 20th Century | Unknown | Britain | Ebonite, bakelite, glass, nickel?, brass. | 96935 |
| View Record | 'Marconi' Ammeter | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel?, brass, copper?, nickel. | 62660 |
| View Record | Variometer | c. 1920 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, rope, porcelain, mahogany, brass, bakelite. | 96466 |
| View Record | Marconi Radio Valve Type MT1 | Early 20th Century | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel, assorted metals. | 46376 |
| View Record | Quenched Spark Disc Unit | 20th Century | Unknown | Unknown | Iron, nickel, ebonite, assorted metals. | 53392 |
| View Record | Quenched Spark Disc Unit | 20th Century | Unknown | Unknown | Iron, nickel, ebonite, assorted metals. | 19420 |
| 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 | 'Melba' Telephone Microphone No C100L | Dated 1920 | Marconi Company. | England | Mahogany, brass, ebonite, cloth, nickel. | 54651 |
| View Record | Large Iolanda Transformer With Case | Early 20th Century | Unknown | Unknown | Mahogany, metal alloy, brass, copper, wood. | 57720 |
| View Record | Marconi Radio Valve Type QX | c. 1921 | Marconi-Osram Valves. | London | Glass, steel, assorted metals. | 35970 |
| View Record | Marconi Radio Valve Type V24 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 29519 |
| View Record | Medal Institute Of Radio Engineers | c. 1922 | Sanford. | Unknown | Gold. | 12658 |
| View Record | Marconi Valve Type V24 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 35245 |