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ID = 12782
Brand: Klangfilm GmbH
Tube type:  Space Charge Tetrode 
Identical to KL70410 = RE074d
Similar Tubes
Other characteristic (electr. data):
  A441 ; A441N ; DG407 ; DM300_old ; U409D

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eu) Sidecontact.
Filament Vf 4 Volts / If 0.08 Ampere / Direct / Battery =
Description Wurde in tragbaren Geräten und Spezialschaltungen bei niedrigen Betriebsspannungen verwendet. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
KL70410: TFK
Wolfgang Holtmann


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