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8D4

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ID = 21984
       
 
   
Tube type:  Vacuum Pentode   Universal 
Identical to 8D4 = 6W7G

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
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oc10_g_5.gif 8D4: RTT Schwandt
Günther Stabe † 19.8.20

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