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NR13

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ID = 48180
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to NR13
Similar Tubes
Other characteristic (electr. data):
  NR7 ; NR7A

Base IS-2 (Interservice, UK 1918) Sidecontact.
Was used by Military and/or Government
Filament Vf 3.5 Volts / If 0.61 Ampere
Description This was among the last of the "R" series tubes manufactured for the UK Navy and is very similar to the NR7A and the NR7. 
Information source British Radio Valves - The Vintage Years: 1904-1925   Pages 39, 40 & 86

Collection of

 
nr13.jpg

 

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