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Displaying 41 to 60 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | Ebonite Partition Insulator | Early 20th Century | Unknown | Unknown | Brass, ebonite. | 47690 |
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 70590 |
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 21726 |
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 79026 |
| View Record | 4 Volt Fleming Valve | c. 1905 | Royal Ediswan. | London | Brass, glass, assorted metals. | 93660 |
| View Record | 4 Volt Fleming Oscillation Valve | c. 1905 | Royal Ediswan. | London | Brass, glass, assorted metals. | 21763 |
| View Record | Marconi Radio Valve Type DEQ | c. 1923 | Marconi-Osram Valves. | England | Brass, glass, assorted metals. | 74920 |
| View Record | Cylindrical Reflecting Vertical Galvanometer | c. 1925 | H. Tinsley & Co. | London | Brass, glass, copper, bakelite. | 55299 |
| View Record | Large Tuning Condenser | c. 1906 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, glass, ebonite, teak, assorted metals. | 48642 |
| View Record | Precision Instrument Model EGM2 | Mid 20th Century | Cambridge Instrument Co. Ltd. | Cambridge, England | Brass, iron, assorted metals. | 59269 |
| View Record | Triangular Base | Early 20th Century | Unknown | Unknown | Brass, iron, baize. | 53033 |
| View Record | Drysdale-Tinsley Vibration Galvanometer | 20th Century | H. Tinsley & Co. | London | Brass, iron, glass, bakelite?, mahogany, plastic. | 17033 |
| View Record | Induction Coil For Tuned Field Transmitter | 1907 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, mahogany, ebonite. | 30667 |
| View Record | Tuned Field Transmitter | 1907 | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, mahogany, glass, ebonite. | 87142 |
| View Record | Morse Tape Inker | c. 1900 | Siemens Brothers. | London | Brass, mahogany, paper, assorted metals. | 20877 |
| View Record | Morse Tape Inker | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, mahogany, paper. | 99765 |
| View Record | Morse Tape Inker | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, mahogany, paper. | 71246 |
| View Record | Ship's Transmitter Jigger | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, mahogany. | 29208 |
| View Record | 'Marconi' Wavemeter Type MC1 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London | Brass, mahogany?, ebonite, bakelite, nickel, copper. | 37590 |
| View Record | Large Emergency Morse Key | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Brass, metal alloy, teak, ebonite. | 31025 |