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LD409

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ID = 14430
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Triode, vacuum 
Identical to LD409

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.08 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   


Just Qvigstad
Usage in Models 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 
h_tungsram_as4100_ld409_pp415_reklam_1930~~1.jpg

 

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