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Electronic Valve - Osram, Double Diode, Type U8, circa 1928 Object Reg. No: ST 028676

Double diode, used as a full-wave rectifier. Manufacturer: Marconi Osram Valve Company, England.
7.5 volt directly heated cathode.
Four pin USA UX style base.
Acquisition Information:
Donation from G. Williams, 1973
Discipline: Technology
Dimensions: 144 mm (Length), 62 mm (Diameter)

More information

Tagged with: thermionic electron valves
Themes this item is part of: Engineering Collection, Information & Communication Collection
Primary Classification: ELECTRONICS
Secondary Classification: Vacuum Technology
Tertiary Classification: rectification
Inscriptions: Bulb: U8/Made in England/Patented/Osram Valve
Manufacturer: Marconi Osram Valve Co., England, Great Britain, circa 1928
References: Babani: International Radio Tube Encyclopædia, 3rd Edition 1958-59. PP 290,291.
  1. [Book], Bernard Babani, International Radio Tube Encyclopaedia, Bernards (Publishers) Ltd., London, 1958, 1958, 290, 291 Pages

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