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NR15

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ID = 14551
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Triode, vacuum   Audio Frequency 
  <1925 very rare. ***
Identical to NR15 = CV1151 = 7404
Predecessor Tubes PM4DX   L410_Marconi  
Successor Tubes NR15A  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Military and/or Government
Filament Vf 3.8 Volts / If 0.1 Ampere / Direct / Specified voltage AND current AC/DC
Description

Obsolete, replaced by NR15A. British Admiralty Pattern no 7404

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   Page 120

nr15_so.png NR15: rtt
Anonymous 10 Collector


Just Qvigstad
cv1151nr15_1_1.png
NR15: Manufacturer's Literature
Emilio Ciardiello

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