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311B

Information - Help 
ID = 56497
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Vacuum Pentode   Power/Output 
Identical to 311B
Similar Tubes
Normally replaceable-slightly different:
  311A

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 10 Volts / If 0.64 Ampere / Indirect / Specified voltage AC/DC
Description

Gm 2.9 mS, 9W

Differences between 311A and 311B are not known.

 
Information source Tube Lore (I)   


Just Qvigstad
 
we_311b.jpg

311B
 

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