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ER57

Information - Help 
ID = 73728
       
Country:
United States of America (USA)
Brand: Eveready (Ever Ready), AENMC / National Carbon Company (NCC); Columbia
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to ER57 = 57

Base 6-Pin-Base U6A, old, USA Top contact screw type
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1 Ampere / Indirect / Parallel / series AC/DC
Literature -- Collector info (Sammler)   
 
57_58~~4.png
ER57: Fin Stewart
Fin Stewart

 

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