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RCA30

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ID = 28736
       
Country:
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  LOCKED OFF TUBE (CODE 9) - see in Notes 
Identical to RCA30 = 30
First year 1927 Saga of the Vacuumtube, Tyne page 467

Filament
Description See 30 
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