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440A_WE

Information - Help 
ID = 35081
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Triode, vacuum 
Identical to 440A_WE
Predecessor Tubes 101F  

Filament Vf 4.15 Volts / If 0.5 Ampere
Description Mu 6.5, 2W, low microphonics triode for carrier telephone systems. 101F version with ST14 bulb on 4-pin push base. 
Information source Tube Lore (I)   
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