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ID = 51993
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to 1_rectifier = KR1 = AD = ER1_Raytheon
Successor Tubes 1-V  

Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC

Officially named simply "1". Our system does not accept single digit names. We choose "1_rectifier" instead.
It was a short life, being introduced in 1932 it was already one month later replaced by the 1-V, a vacuum rectifier.

1_rectifier: Fin Stewart
Fin Stewart


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