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A7

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ID = 53796
       
Country:
Austria
Brand: Kremenezky, Johann (Sator); Wien,(Röhrenhersteller)
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to A7

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.5 Ampere / Direct / Battery =
Description bright emitter, for RF and Det. 
Text in other languages (may differ)

b4_base_pins~~427.png A7: Fin Stewart
Fin Stewart


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