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Displaying 41 to 60 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 |