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Displaying 421 to 440 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 70590 |
| View Record | Replica Grasshopper Send-Receive Morse Key | Late 20th Century | Unknown | Unknown | Brass, plastic?, mahogany. | 70649 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 70668 |
| View Record | Spare Wires | 20th Century | Unknown | Unknown | Plastic, brass?, steel. | 70800 |
| View Record | Marconi Radio Valve Type V24 | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | England | Glass, steel, assorted metals. | 70906 |
| View Record | Telephone Transformer Type 191A | Early 20th Century | Marconi International Marine Communication Co. Ltd. | England | Hardwood, ebonite, steel. | 71080 |
| View Record | Marconi Watercolour | c. 1906 | Leslie Ward. | England | Watercolours, wood, glass, paper. | 71104 |
| View Record | Morse Tape Inker | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | England | Brass, mahogany, paper. | 71246 |
| View Record | Rotary Spark Discharger | Early 20th Century | Marconi's Wirelss Telegraph Co. Ltd. | London | Steel, brass, cast iron. | 71249 |
| View Record | Radio Valve Type AR8 | Mid 20th Century | Unknown | England | Glass, plastic?, steel, assorted metals. | 71310 |
| View Record | Small Morse Key | Early 20th Century | Unknown | Unknown | Steel, bakelite. | 71452 |
| View Record | Marconi Five-Valve Receiver | 1922 | Marconi Scientific Instrument Co. Ltd. | London | Teak, ebonite?, bakelite?, copper. | 71494 |
| View Record | RCA Radiotron Radio Tube Type 6D6 | 20th Century | RCA. | USA | Plastic?, steel, glass, assorted metals. | 71527 |
| View Record | Radio Valve Type VR112 | Mid 20th Century | Unknown | England | Glass, plastic?, steel, assorted metals. | 71648 |
| View Record | Replica Memorial Plaque Of South WellFleet Station (USA) | Late 20th Century | Unknown | USA | Cast metal. | 71856 |
| View Record | Large Company Seal Embosser Chamberlain & Hookham Ltd | 20th Century | Unknown | Britain | Steel, wood. | 71971 |
| View Record | Empty Case Of Forward Spark 'B' Wavemeter No. 2001 | c. 1918 | War Department Signals Flying Corps. | Britain | Teak. | 71985 |
| View Record | Early Coherer | c. 1899 | Unknown | England | Glass, copper, nickel, silver, assorted metals. | 72143 |
| View Record | Call Sign | 20th Century | Unknown | Unknown | Mahogany, plastic, metal. | 72238 |
| View Record | Bone Coherer Support Rod | c. 1902 | Unknown | Unknown | Ivory, assorted metal components. | 72278 |