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A4A2

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ID = 12495
       
Country:
Spain
Brand: Castilla; Madrid
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to A4A2 = E462

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc)
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

9_52.png A4A2: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1933

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

Collection of

 
a4a2fre.jpg

A4A2
 

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