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2441

Informazioni - Aiuto 
ID = 67282
       
Stato:
USA (Stati Uniti d'America)
Produttore: WLS (tubes), World's Largest Store - see also Sears, Roebuck & Co; Chicago, IL
Tipo:  Rettif. a doppia semionda, a vuoto   Power-supply 
  Ca. 1925 up to 1945 very rare. ***
Identico a 2441 = UX213

Zoccolo UX-Base (4 Pins (2 thick, USA 1924)
Utilizzata per Radio/TV-reception etc.
Filamento Vf 5 Volt / If 2 Ampere / Direct / Specified voltage AC/DC
Descrizione

The American company Sears Roebuck, with its head office in Chicago sold the standard range of American made and designed, from 1925. A few small manufacturers made these tubes and they were branded "WLS" (Worlds Largest Store") . The company allotted each tube a 4 digit type number. The company also sold reglar brand name tubes soch as Radiotron, Cunningham, Solartron and Meteor.

 
Bibliografia -- Collector info (Sammler)   Sears Roebuck catalog pages


Just Qvigstad
 

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