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WLS581

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ID = 67162
       
Country:
United States of America (USA)
Brand: WLS (tubes), World's Largest Store - see also Sears, Roebuck & Co; Chicago, IL
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 very rare. ***
Identical to WLS581 = 4619_WLS = CX381 = 57T281
Similar Tubes
Normally replaceable-slightly different:
  R81 ; UX281

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Filament Vf 7.5 Volts / If 1.2 Ampere / Direct
Description

Made for Sears Roebuck - "The Worlds Largest Store"

 
Information source Tube Lore (I)   page 16.

81~~2.png WLS581: Fin Stewart
Fin Stewart


Just Qvigstad
 

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