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AR4

Information - Help 
ID = 13766
       
Country:
Great Britain (UK)
Brand:
Tube type:  Triode, vacuum   Power/Output 
Identical to AR4

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Military and/or Government
Filament Vf 4 Volts / If 0.12 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
mullard_ar4.jpg
AR4: Ebay item December 2019
Fin Stewart

 

from Just Qvigstad

Usage in Models 1= 1933 ; 2= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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