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D-170135

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ID = 49763
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Developer: Bell Labs; Murray Hill, NJ. 
Tube type:  MICROWAVE AND RADAR, general 
Identical to D-170135 = 1B42

Was used by Radar
Filament
Description

Series spark gap tube intended for high-power radar modulator circuits. Cathode is formed by mercury immobilized by a cup-shaped iron sponge, anode is a 0.06" diameter molybdenum rod. Mercury evaporating due to the sparks condenses and returns into the iron sponge, so to always have a mercury film over the cathode surface. Hydrogen filling to minimize the jitter
80 to 300A pulses, 5KV operating voltage.
WE developmental code for 1B42, introduced during WWII.

 
Dimensions (WHD)
incl. pins / tip
76 x 152 x mm / 2.99 x 5.98 x inch
Information source Tube Lore (I)   

 

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