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2959

Informazioni - Aiuto 
ID = 67878
       
Stato:
USA (Stati Uniti d'America)
Produttore: WLS (tubes), World's Largest Store - see also Sears, Roebuck & Co; Chicago, IL
Progettista: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tipo:  Triodo a vuoto   Detector 
  <1925 very rare
Identico a 2959 = Junior_Concertmaster = WD12
Zoccolo UV-Base (4 Pins+Bayonet, USA 1914 WE)
Utilizzata per Radio/TV-reception etc.
Filamento Vf 1.1 Volt / If 0.25 Ampere / Direct / Battery =
Descrizione

The American company Sears Roebuck, with its head office in Chicago sold the standard range of Ameerican designed and made radio tubes friom 1925. A few small manufacturers made these tubes and they were branded "WLS" (Worlds Largest Store). The company allotted each tube a four digit type number. The company also sold regular branded tubes such as Radiotron, Cunningham, Solartron and Meteor.

Page 552 of the 1925 catalog lists this tube and it is also on page 493 of the Spring 1926 catalog.

 
Dimensioni
(LxAxP)
incl.pins/tip		 x 105 x 34 mm / x 4.13 x 1.34 inch
Peso 52 g / 1.83 oz
Bibliografia Sears, Roebuck Catalogs (Silvertone)   Page 552 1925
-- Collector info (Sammler)   
uv~~82.png 2959: Fin Stewart
Fin Stewart

Just Qvigstad
 
[rmxtube-en]
  
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