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4612_WLS

Information - Hilfe 
ID = 67126
       
Land:
USA
Marke: WLS (tubes), World's Largest Store - see also Sears, Roebuck & Co; Chicago, IL
Entwickler: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Typ:  Triode (Hoch-) Vakuum   Niederfrequenz 
  Ca. 1925 bis 1945, aber selten.
Identisch mit 4612_WLS = D_Amplion = WX12
Sockel USA-UX-4-Stift-Sockel (2 dick), ab 1924
Anwender Radio/TV-Empfang etc.
Heizung Uf 1.1 Volt / If 0.25 Ampere / Direkt / Batterieheizung =
Beschreibung

Page 671 of the Fall 1928 isue of theSears Roebuck catalog announces a new catalog number series for radio tubes, 46XX, replacing the 29XX series. The company sold the standard range of US designed and made tubes and these were made by a small number of manufacturers. THE "WLS" (Worlds Largest Store) brand was either hot branded on the tube base or a paper label on the glass. The 4612_WLS is also shown in the Spring 1929 catalog.

 
Literatur Tube Lore (I)   page 16.
Sears, Roebuck Catalogs (Silvertone)   Page 671, Fall 1928 catalog
uxsockel_11~~20.png 4612_WLS: Fin Stewart
Fin Stewart

Just Qvigstad
 
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