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333A

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ID = 34932
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Thyratron Cold-cathode 
Identical to 333A
Successor Tubes 425A_WE  

Filament
Description Cold cathode neon triode. RaBr or Kr-85 activator since 1952. 185V, 35mA. Similar to 313C, with mounting bracket and flying leads in place of base. Used as ringer isolator in telephones. 
Information source Tube Lore (I)   
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we_333a.jpg

333A
 

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