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L22DD

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ID = 14409
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Double Diode-Triode 
Identical to L22DD

Base Octal-8 GB, (Mazda), K8B, MO (Codex=Vu)
Filament Vf 2 Volts / If 0.1 Ampere / Direct
Information source Taschenbuch zum Röhren-Codex 1948/49   

623_1.png L22DD: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 4= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
 

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