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ID = 19383
Tube type:  Triode, vacuum   UHF 
Identical to 6R4 = EC81
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 0.175 Ampere / Indirect / Parallel, (AC/DC defined voltage)
Description UHF triode intended as oscillator up to 750MHz.
RMA registation code for Philips EC81. 
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Tube prices 1 Tube prices (visible for members only)
  6R4: Internet
Miguel Angel Trujillo-Rodriguez
6R4: Eigene Sammlung
Siegfried Neumann

6R4: RTT Schwandt
Günther Stabe † 19.8.20


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