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4GBF

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ID = 10596
       
Country:
Spain
Brand: Castilla; Madrid
Tube type:  Vacuum Pentode   Power/Output 
Identical to 4GBF = B443_4pin
Similar Tubes
Other base:
  B443

Base Europe 4-Pin B4 + side contact (Codex=Foo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Specified voltage AC/DC
Information source Röhren-Vademecum; P.H. Brans; Antwerpen   p. 106
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 205, p. 404
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

4gbf_so.png 4GBF: rtt
Anonymous 10 Collector


Just Qvigstad
4gbf_spec.png
4GBF: Castilla 1930
Anonymous 15 Collector

Usage in Models 1= 1930

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

Collection of

 
e_castilla_4gbf.jpg

 

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