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CV657

Information - Help 
ID = 9873
       
 
   
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to CV657 = 1620_Pentode
Similar Tubes
Normally replaceable-slightly different:
  6J7 ; VT-91

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf)
Was used by Military and/or Government
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
6j7_7.png
CV657: Manufacturer's Literature
Emilio Ciardiello

 

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