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ID = 19381
Tube type:  Triode, vacuum   UHF 
Identical to 6Q4 = EC80
First Source (s)
15.Jul.1949 : Electron Tube Registration List 766

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.43 Ampere / Indirect / Specified voltage AC/DC

RMA code for EC80.

Part of the Innoval family, early noval tubes with frit-seal base sealing to envelope, first introduced by Philips Australia.

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6Q4: Internet
Miguel Angel Trujillo-Rodriguez

no1_g.gif 6Q4: RTT Schwandt
Günther Stabe † 19.8.20

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Just Qvigstad
6Q4: elektron taschenbuch 1952
Heinz Höger


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