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2C21/1642

Information - Help 
ID = 4206
       
 
   
Tube type:  LOCKED OFF PART (CODE 9) - see in Notes 
Identical to 2C21/1642 = 2C21 = 1642

Filament
Description No tube designation or type, only a combination of 2C21 and 1642 
Text in other languages (may differ)
Information source Essential Characteristics, GE 1973   
 
2c21_1642.jpg
2C21/1642: A.S.
Andreas Schmack

 
2c21-1642_1.png
2C21/1642: Manufacturer's Literature
Emilio Ciardiello

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