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WLS550

Information - Help 
ID = 67170
       
Country:
United States of America (USA)
Brand:
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to WLS550 = 4617_WLS = 57T250
Similar Tubes
Normally replaceable-slightly different:
  L_WLS ; UX250

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Parallel, (AC/DC)
Description

Made for Sears Roebuck - "The Worlds Largest Store"

 
Literature Tube Lore (I)   page 16.
 
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WLS550: Fin Stewart
Fin Stewart

 

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