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AudioTron

Information - Help 
ID = 19030
       
Country:
United States of America (USA)
Brand: Cunningham Inc., E.T.; Harrison (NJ)
Developer: Cunningham Inc., E.T.; Harrison (NJ) 
Tube type:  TRIODE (Detail uncertain) 
  <1925 rare.
Identical to AudioTron
Similar Tubes
Normally replaceable-slightly different:
  Electron_Audio ; LibertyValve ; Oscilaudion ; Thermotron
First year Aug.1915 Saga of the Vacuumtube, Tyne page 160ff
Production stop 15.Oct.1920

Base Wires
Filament Direct / Battery =
Description

This is a double ended all glass tube with V shaped filamemt and 3 filament leads. Tubes from 1920 bear a paper label or markings etched on the glass bulb.

Cunningham AudioTron: see Tyne "Saga" page 160ff: Cunningham claims first use October 1915 and first sales for August 1915 , first advertised in November 1915. Name was registered in March 1916.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
24 x 105 x 24 mm / 0.94 x 4.13 x 0.94 inch
Weight 35 g / 1.23 oz
Tube prices 11 Tube prices (visible for members only)
 
cunningham_audiotron.jpg
AudioTron: EE
Ernst Erb

 

Usage in Models 1= 1916?? ; 9= 1916? ; 2= 1916 ; 9= 1917 ; 1= 1918? ; 1= 1918 ; 1= 1919?? ; 1= 1919? ; 4= 1919 ; 8= 1920 ; 2= 1921 ; 3= 1922

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):42


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