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A4AF

Information - Help 
ID = 13654
       
Country:
Spain
Brand: Castilla; Madrid
Tube type:  Triode, vacuum   Audio Frequency 
Identical to A4AF = E499

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.2 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
a4af_bild1.jpg
A4AF
Helmut Braun

 
7_82.png
A4AF: Telefunken Werkstattbuch
Wolfgang Bauer

 

from Just Qvigstad

Usage in Models 1= 1925?? ; 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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