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X14

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ID = 8717
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old) 
Identical to X14 = 1A7G

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ut)
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   

x14.png
X14
Egon Strampe

413_5.png X14: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
Usage in Models 1= 1940?? ; 3= 1940 ; 5= 1946

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):9

Collection of

 
x14gecovalve.jpg

 

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