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ID = 22769
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Vacuum Pentode   Universal 
Identical to TCF7 = CF7
First year 1935 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe side contact P8A (Au P, 8SC) Top contact with a cap.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description Wir verwenden bei Modellen nur die Grundröhre CF7, denn es ist willkürlich, ob ein Apparat mit CF7 oder der Tungsram TCF7 ausgerüstet ist. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
TCF7: Ma propre collection , héritage ON4FD
Etienne Flemal

TCF7: Telefunken Werkstattbuch
Wolfgang Bauer

TCF7: Tungsram Radio
Anonymous 1038 Collector

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