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2952

Información - Ayuda 
ID = 67133
       
País:
Estados Unidos
Marca:
Diseñador: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tipo:  Triode, vacuum   Audio Frequency 
  <1925 very rare
Idéntica a 2952 = 4611_WLS = CX299
Válvulas similares
Substituya normalmente -diferencia peq.:
  UX199

Base UX-Base (4 Pins (2 thick, USA 1924)
Usada en Radio/TV-reception etc.
Filamento Vf 3 Volt / If 0.06 Ampere / Direct / Battery =
Descripción

The American company Sears Roebuck, with its head office in Chicago, sold the standard range of American designed and made radio tubes from 1925. A few small manufacturers made these tubes and they are 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, Cunnungham, Solartron and Meteor. The 2952 tube is listed in the following catalogs: Fall 1926 page 639, Spring 1927 page 639, Fall 1927 page 713 and Spring 1928 page 619

 
Literatura Tube Lore (I)   page 16.
Sears, Roebuck Catalogs (Silvertone)   Page 639 Spring 1926

uxsockel_11~~9.png 2952: Fin Stewart
Fin Stewart


Just Qvigstad
 

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