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ECH22

Information - Help 
ID = 17731
       
 
   
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to ECH22 = CV302
Similar Tubes
Different connections:
  ECH21

Base Loctal-8, B8G (Sylvania, 1938)
Filament Vf 6.3 Volts / If 0.33 Ampere / Indirect / Parallel, (AC/DC)
Description Characteristics same as ECH21, base diagram same as 7J7 
Text in other languages (may differ)
Tube prices 2 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
7j7~~2.png
ECH22: Manufacturer's Literature
Emilio Ciardiello

 

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