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ID = 22349
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  Double Triode 
Identical to OSW3129 = 3129_OSW = HF3129 = 6SN7_DDR
Similar Tubes
Other shape (e.g. bulb type):
  6SN7GT ; 6Н8С

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect / Specified voltage AC/DC
Information source -- Original prospect or advert   

3129_6sn7.gif OSW3129: RFT Röhrentaschenbuch 1954
Wolfgang Eckardt

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Just Qvigstad
OSW3129: Werk für Fernmeldewesen
Egon Strampe


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