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ER235

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ID = 43639
       
Country:
United States of America (USA)
Brand: Eveready (Ever Ready), AENMC / National Carbon Company (NCC); Columbia
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to ER235 = 235 = UY235 = C335 = 451_deForest

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Indirect / Parallel, (AC/DC)
Description Tube fitted with four pillar element mounting. 
Dimensions (WHD)
incl. pins / tip
45 x 125 x mm / 1.77 x 4.92 x inch
Weight 55 g / 1.94 oz
Information source -- Collector info (Sammler)   
 
er235_pic1.jpg
ER235: o
Anonymous 15 Collector

 
s_225_g_5~~1.gif
ER235: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 

from Just Qvigstad

Collection of a member from D

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