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Detector_Wallace

Information - Aide 
ID = 57842
       
Pays:
Etats-Unis
Fabricant: McCandless & Co, H.W.; New York City, NY
Concepteur: Wallace & Co. (Paul E.); New York City, New York 
Type:  Gas Triode   Detector 
  <1925 très rare
Identique à Detector_Wallace
Culot Wires
Chauffage Direct / Battery =
Description

In the summer of 1911 Paul E. Wallace made and sold the "Wallace Valve Detector', this was at least a year before it was first advertised for sale.

This is an unbased tubular Audion similar to the Audion_06-triode which Wallace bought from McCandless. It has a single, a double filament and has wires only for connections. It is used in the Wallace Valve detector and was first pictured in an advertisement in Modern Electrics of November 1912.

 
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Utilisé dans modèles 2= 1911 ; 1= 1912 ; 1= 1913
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usa_deforest_audions2.jpg

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Detector_Wallace
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First advertisement showing the Wallace Audion valve.
Alan Larsen
30.Jun.26 		  1
First advertisement showing the Wallace Audion valve. 

November, 1912 Modern Electrics advertisement for the Wallace Valve Detector. 
 
Detector_Wallace
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