Similar items over time

Electronic Valve - MO Valve Company, Triode, Type NR11, circa 1920 Object Reg. No: HT 26131

Triode, manufactured by Marconi Osram Valve Company, England for the British Navy. Base was specifically designed for the Navy.
Tubular bulb with Bakelite base and conical top cap. Base has two threaded side contacts and conical pin at bottom.
Discipline: Technology
Dimensions: 85 mm (Height), 30 mm (Diameter)

More information

Tagged with: triodes, 7918
Themes this item is part of: Information & Communication Collection
Primary Classification: ELECTRONICS
Secondary Classification: Vacuum Technology
Tertiary Classification: amplification
Inscriptions: On bulb: " ADMIRALTY / PATT. [illegible] / N.R. / 34815 / [illegible] ", " [illegible] / THE M.O. VALVE CO. LTD / G.E.C. / MADE IN ENGLAND "
On base: " A ", " G "
Manufacturer: Marconi Osram Valve Co, England, Great Britain, circa 1920

Add your comment

  • Museum Victoria does not provide valuations, for more information please visit the valuation infosheet
  • Please note that Museum Victoria staff will not normally respond to comments posted on our website.


This item is part of the following themes:

Similar items

Yes No