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Displaying 351 to 400 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | Marconi Radio Valve Type V24 | c. 1918 | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 60590 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 60662 |
| View Record | Portable Valve Transmitter | 1919 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, nickel, teak, bakelite?, paper. | 61008 |
| View Record | Small Coupled Two-Way Switch | Early 20th Century | Unknown | Unknown | Steel, brass, iron?, bakelite?, mahogany?, ebonite. | 61022 |
| View Record | Single-Turn Primary Coil | Early 20th Century | Unknown | Unknown | Wood, brass. | 61290 |
| View Record | Magneto-Electric Machine | Late 19th Century | Unknown | Unknown | Boxwood?, steel?, brass, velvet. | 61523 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 61674 |
| View Record | Trembler Coil | c. 1907 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, nickel, ebonite?, steel. | 61771 |
| View Record | RCA Radiotron Acorn Radio Tube Type VT121 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Glass, steel, assorted metals. | 61791 |
| View Record | Marconi Five-Valve Receiver | 1922 | Marconi Scientific Instrument Co. Ltd. | London | Teak, nickel, ebonite?, copper, bakelite?, glass. | 62304 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 62344 |
| View Record | Marconi Radio Valve Type DE3C | c. 1924 | Marconi-Osram Valves. | London | Glass, bakelite, steel, tungsten, assorted metals. | 62393 |
| View Record | Company Seal Embosser Elliot Flight Automation Ltd | 20th Century | Unknown | Britain | Steel, wood, brass, baize. | 62415 |
| View Record | 'Marconi' Ammeter | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel?, brass, copper?, nickel. | 62660 |
| View Record | Lead-Acid Accumulator | Early 20th Century | Unknown | Unknown | Teak, leather?, brass. | 62812 |
| View Record | Marconi Radio Valve Type DEV | c. 1923 | Marconi Valves. | England | Glass, steel, assorted metals. | 62884 |
| View Record | Early Coherer | c. 1902 | Unknown | Unknown | Glass, elastic, copper?, steel, assorted metals. | 62930 |
| View Record | Marconi Crystal Receiver Type 16 | 1916 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, teak, bakelite, brass, steel?, copper. | 63794 |
| View Record | Brimar Radio Valve Type 6V6GT | 1940s | Brimar. | England | Glass, plastic?, steel, assorted metals. | 64011 |
| View Record | 120 Ohm Resistance Coil | Early 20th Century | Unknown | Unknown | Teak, steel, wax, assorted metals. | 64043 |
| View Record | Bell Telephone Microphone | c. 1923 | Unknown | England | Ebonite, cast brass, steel?, nickel. | 64147 |
| View Record | Radio Valve Type ARP12 | c. 1939 | Unknown | England | Glass, plastic?, steel, assorted metals. | 64286 |
| View Record | Company Seal Embosser Firth Cleveland Instruments Ltd | 20th Century | Unknown | Britain | Steel, nickel, wood. | 64400 |
| View Record | Tuned Circuit Transmitter | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, plastic, celluloid, brass, glass, steel. | 64464 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, steel, plastic?, assorted metals. | 64468 |
| View Record | Porcelain Insulators | 20th Century | Unknown | Unknown | Porcelain, brass, steel?, ebonite. | 64661 |
| View Record | Marconi-Osram Radio Valve Type DET 1A | 20th Century | Marconi-Osram Valve Co. Ltd. | London | Glass, nickel-plated, brass, plastic?, assorted metals. | 64933 |
| View Record | Rogers Radio Tube Type VR56 | Mid 20th Century | Rogers Canada. | Canada | Glass, steel, plastic?, assorted metals. | 64947 |
| View Record | Trembler Coil | c. 1907 | Marconi's Wireless Telegraph Co. Ltd. | England | Teak, bakelite, steel, nickel. | 64976 |
| View Record | Rotary Spark Discharger | c. 1906 | Unknown | Unknown | Steel, brass, cast-iron, | 64999 |
| View Record | Stud Field Regulating Rheostat | Early 20th Century | Electric Construction Co. Ltd. | Wolverhampton, England | Brass, steel, iron, metal alloys | 65352 |
| View Record | Alexandra Palace Mast | 1936 | Marconi's Wireless Telegraph Co. Ltd. | Britain | Iron, assorted metals, oak?. | 65804 |
| View Record | Large Fixed-Gap Discharger With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Teak, brass, lead?, metal alloy, sand?, ebonite?, steel. | 65806 |
| View Record | Portrait of Marconi | 1914 | Gustave Muranyi | Unknown | Oil, canvas, wood, brass, paper, cotton? | 65827 |
| View Record | 'Marconi' Direction Finder Type DFM2 | c. 1927 | Marconi's Wireless Telegraph Co. Ltd. | London | Teak, brass, ebonite, glass, bakelite, celluloid, steel. | 65922 |
| View Record | Voltmeter With Case | Early 20th Century | Unknown | Britain | Oak, brass, glass, celluloid, paper, assorted metals. | 65935 |
| View Record | Tuning Condenser | c. 1916 | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, ebonite, celluloid. | 66117 |
| View Record | 4 Volt Fleming Valve | c. 1905 | Royal Ediswan. | London | Teak?, glass, ebonite, metal alloy, nickel, assorted metals. | 67148 |
| View Record | Fleming Valve | c. 1905 | Ediswan. | London | Copper, glass, brass, assorted metals. | 67162 |
| View Record | Company Seal Embosser Robtron Controls Ltd | 20th Century | Jordan & Sons Ltd. | London | Steel, nickel, baize. | 67172 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 67628 |
| View Record | Marconi Crystal Receiver Type 31C | 1910 | Marconi's Wireless Telegraph Co. Ltd. | London | Ebonite, brass, mahogany?, bakelite. | 67687 |
| View Record | Righi Oscillator | 1896 | Augusto Righi. | Bologna, Italy | Brass, ebonite, mahogany. | 67799 |
| View Record | Coherer Receiver | 1902 | Marconi's Wireless Telegraph Co. Ltd. | London | Mahogany, brass, steel. | 67916 |
| View Record | Marconi Radio Valve Type FE2 | c. 1922 | Marconi's Wireless Telegraph Co. Ltd. | London | Glass, nickel?, assorted metals. | 68373 |
| View Record | Receiver Type R1155A | c. 1940 | Air Ministry. | Unknown | Aluminium, bakelite?, perspex?, steel. | 68465 |
| View Record | Low Frequency Iron Core Inductance In Wooden Box | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Iron, brass, teak. | 68721 |
| View Record | Siemens & Halske Radio Valve Type RE87 | 20th Century | Siemens & Halske. | Germany | Glass, steel, brass, bakelite?, assorted metals. | 69068 |
| View Record | BBC-Marconi Ribbon Microphone | Mid 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Copper, aluminium, bakelite?, assorted metals. | 69070 |
| View Record | Mullard Radio Valve Type EF37A | Mid 20th Century | Mullard. | England | Glass, steel, plastic?, assorted metals. | 69132 |