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199_GEM

Information - Help 
ID = 61274
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Audio Frequency 
  <1925 rare.
Identical to 199_GEM = 199_UV
Similar Tubes
Other base:
  UV199 ; UX199

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery = /
Description

Made by GEM Tube Co, Broadway, New York. This tube is unusual as it has a blue glass bulb which is about 35 mm diameter. 

Literature -- Collector info (Sammler)   
Saga of the Vacuumtube, Tyne   

 
uv_199_gem_ridotta.jpg
199_GEM: collezione privata
Davide Casarosa

 
uv_triode_tube~~17.png
199_GEM: Fin Stewart
Fin Stewart

 


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