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ID = 13654
Brand: Castilla; Madrid
Tube type:  Triode, vacuum   Audio Frequency 
Identical to A4AF = E499
Similar Tubes
Normally replaceable-slightly different:

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 / Specified voltage AC/DC

This tube is listed in the Museum as equivqlent to the E499. Also in Rohren Codex 1950. It is listed in the Universal Vademecum as E438.

Information source Röhren-Vademecum; P.H. Brans; Antwerpen   p. 10
Taschenbuch zum Röhren-Codex 1948/49

7_82.png A4AF: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
Usage in Models 1= 1930 ; 1= 1933??

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

Collection of



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