History of Science Museum: Collection Database Search

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1. Balloon Envelope Radio Valve, 20th Century 2. Brimar Radio Valve Type 6V6GT, by Brimar, English, 1940s 3. Marconi Radio Valve Type V24, by Marconi Company, English,... 4. Marconi-Type Radio Valve, by Marconi Company, English, 1920s/1930s 5. Marconi Radio Valve Type V24, by Marconi Company, English,... 6. Marconi Radio Valve Type V24, by Marconi Company, English,... 7. Marconi Radio Valve Type V24, by Marconi Company, English,... 8. Mullard Radio Valve Type PY33, by Mullard, Britain, 1960s 9. Marconi Radio Valve Type DEQ, by Marconi Company, English,... 10. Marconi Radio Valve Type S625, by Marconi Company, English,... 11. Dario Radio Valve Micro Special, by Dario, French, Mid 20th... 12. Tungsram Radio Valve Type RV200/600, by Tungsram, English,... 13. Radio Valve Type ARTP2 with carton, English, Mid 20th Century 14. Mullard Radio Valve Type EF37A with carton, by Mullard, English,... 15. Early Coherer, c. 1899 16. Early Coherer, c. 1902 17. Early Coherer, c. 1902 18. Early Experimental Coherer, c. 1902 19. Bone Coherer Support Rod, c. 1902 20. Brass-Tipped Bone Stylus, c. 1902 21. Pillbox With Spare Coherer Parts, c.1902 22. Cluster Of Six Small Glass Tubes, c. 1902 23. Early Small Coherer, by Guglielmo Marconi, Italy, c. 1895 24. Glass Phial Containing Heavy Water, by The Norwegian Hydro-Electric... 25. Achromatic Telescope, by Dollond, London, 1774