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ER237

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ID = 69420
       
Country:
United States of America (USA)
Brand: Eveready (Ever Ready), AENMC / National Carbon Company (NCC); Columbia
Tube type:  Triode, vacuum   Text 
Identical to ER237 = 37 = 237

Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Description Tube operates as an amplifier and biased based detector. Fitted with four pin element mounting. 
Dimensions (WHD)
incl. pins / tip
x 108 x 42 mm / x 4.25 x 1.65 inch
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia
 
er237_eveready_raytheon.jpg
ER237: tube from my collection
Oleg Missevitch

 
37~~2.png
ER237: Fin Stewart
Fin Stewart

 


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