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ID = 12555
Brand: Kremenezky, Johann (Sator); Wien,(Röhrenhersteller)
Tube type:  Space Charge Tetrode 
Identical to B10
First year 1927 Radios von gestern, 2. Auflage aus Radiowelt 1927 / 39

Base Europe 4-Pin B4 + side contact (Codex=Eu)
Filament Vf 4 Volts / If 0.08 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   

2_5.png B10: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
B10: Kremenezky Liste Sept. 1927
Thomas Lebeth



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