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CV399

Information - Help 
ID = 30174
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: MO Valve Co. Ltd.; GB 
Tube type:  Triode, vacuum   Detector 
  Ca. 1925 up to 1945 very rare. ***
Identical to CV399 = NR31 = VT139_GPO = MH4

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Military and/or Government
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

= Metallised Version of MH4.

 
Information source -- Original-techn. papers.   
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

cv399_so.png CV399: rtt
Anonymous 10 Collector


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