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7405A

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ID = 15478
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Triode, vacuum   Power/Output 
Identical to 7405A = NR16A = CV1154
Predecessor Tubes 7405  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 3.6 Volts / If 0.23 Ampere / Direct
Description British Admiralty store code for NR16A/CV1154 vacuum triode. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   

pm3_12.png 7405A: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
Usage in Models 4= 1960?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
 

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