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ID = 25368
Brand: Common type Japan tube/semicond.
Tube type:  Triode-Pentode   Universal   Controlling (mu) 
Identical to Ut6F7 = Ut-6F7 = 6F7
First Source (s)
1933 : Vol. 7

Base 7-Pin-Base U7A = small, old, USA
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Description Japan 
Information source Babani, International Radio Tube Encyclopaedia   
-- Collector info (Sammler)   

489_2.png Ut6F7: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad


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