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229D

Information - Help 
ID = 35221
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Developer: Western Electric Company Inc.; New York (NY) 
Tube type:  Triode, vacuum 
Identical to 229D

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery =
Description Receiving triode, T8 bulb on UV base. Mu = 8.5, Gm 0.38 to 0.56mS. Grid and filament spring supported by glass bead from top of plate. Developed for Northern Electric as improved UV-199. 
Information source Tube Lore (I)   
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