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NR5

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ID = 85693
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Developer: Osram-Valves GB (not MO-Valves) 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to NR5
Similar Tubes
Normally replaceable-slightly different:
  R5_Osram

Base IS-1 (Interservice, UK 1918)
Was used by Military and/or Government
Filament Vf 3.5 Volts / If 0.65 Ampere / Direct
Description

This tube was made fr the British Navy.

 
Dimensions (WHD)
incl. pins / tip
x 85 x 31 mm / x 3.35 x 1.22 inch
Weight 29 g / 1.02 oz
Information source British Radio Valves - The Vintage Years: 1904-1925   p. 27, 39 & 40
The Saga of Marconi Osram Valve   p. 22. 60 & 61

is1_base~~8.png NR5: Fin Stewart
Fin Stewart

 

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