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Displaying 451 to 470 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | Osram Radio Valve Type P2 | 20th Century | Osram. | England | Glass, bakelite?, steel, assorted metals. | 57431 |
| View Record | Marconi Radio Valve Type D42 | 20th Century | Marconiphone Co. Ltd. | England | Glass, steel, bakelite?, assorted metals. | 80037 |
| View Record | Marconi Radio Valve Type U10 | 20th Century | Marconi-Osram Valves. | London | Glass, steel, plastic, assorted metals. | 79785 |
| View Record | Radio Valve Type P2 | 20th Century | Unknown | Unknown | Glass, bakelite?, steel, assorted metals. | 48561 |
| View Record | Cossor Radio Valve Type V10 | 20th Century | Cossor. | England | Glass, steel, plastic?, oxide, assorted metals. | 26034 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 92559 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 31425 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 36535 |
| View Record | Three Port Circulator | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Steel, metal. | 79157 |
| View Record | Call Sign | 20th Century | Unknown | Unknown | Mahogany, plastic, metal. | 92097 |
| View Record | Call Sign | 20th Century | Unknown | Unknown | Mahogany, plastic, metal. | 72238 |
| View Record | Precision Measuring Instrument With Case | Mid 20th Century | Cambridge Scientific Co. Ltd. | Cambridge, England | Ebonite, brass, baize, mahogany. | 53614 |
| View Record | Two Mica Crystals | 20th Century | Unknown | Unknown | Mica, mahogany, baize. | 38233 |
| View Record | Marconi Radio Valve | 1920s/1930s | Marconiphone Co. Ltd. | England | Glass, steel, plastic?, assorted metals. | 87176 |
| View Record | Marconi Radio Valve Type MH4 | c. 1931 | Marconi's Wireless Telegraph Co. Ltd. | England | Cooper, steel, plastic?, assorted metals. | 20104 |
| View Record | S. E. Marchesi Marconi | 1931 | Sir Max Beerbohm | London | Paper, watercolour, plastic, metal, nylon? | 16862 |
| View Record | Radio-Special Micro Radio Valve Type E6 | 20th Century | Unknown | Unknown | Glass, bakelite?, steel, assorted metals. | 42700 |
| View Record | Transmitter Tuner Type MC13 | c. 1930 | Unknown | Unknown | Steel, nickel, plastic, assorted metals. | 18269 |
| View Record | Precision Instrument Model EGM2 | Mid 20th Century | Cambridge Instrument Co. Ltd. | Cambridge, England | Brass, iron, assorted metals. | 59269 |
| View Record | Marconi Radio Valve Type LF2 | 20th Century | Marconi's Valves. | Britain | Glass, plastic?, steel, assorted metals. | 74966 |