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4211

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ID = 15460
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  LOCKED OFF PART (CODE 9) - see in Notes   Power/Output 
Identical to 4211

Base (Codex=Byy)
Description

Refer to British STC 4211D or E. No evidence of any U.S. made 4112.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   

 

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