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WD11

Information - Help 
ID = 3615
       
Country:
United States of America (USA)
Brand:
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   Universal 
Identical to WD11 = 11 = C11
Similar Tubes
Normally replaceable-slightly different:
  M11
Other base:
  12 ; DE11 ; WD12 ; WX12
First year Jan.1922 Saga of the Vacuumtube, Tyne page 310
First Source (s)
Jan.1922 : Saga of the Vacuumtube, Tyne
Successor Tubes 1923   WD12   WX12   864  

Base WD-base (Codex=Bw)
Filament Vf 1.1 Volts / If 0.25 Ampere / Direct / Battery = /
Description

Oxyde coated, first without getter then lime-getter. First form with a brass base (BB) with tip. Second has bakelite base and is smaller, tipped. Third version is bakelite, no tipp, clear. Then bakelite, no tipp but opaque getter (not clear). For Detector Aeriola Senior as first Model. Plate has a bigger diameter at the base.

 
Text in other languages (may differ)
Tube prices 59 Tube prices (visible for members only)
Literature Saga of the Vacuumtube, Tyne   
Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature

  exampleforusingwd11.png
  WD11: RCA
Anonymous 56 Collector
 
wd-11rca_3_klein.jpg
WD11
Geri Meier

 
wd11sockelbild_2~~1.png
WD11: KoBi
Konrad Birkner † 12.08.2014

 
wd11_1.png
WD11: KoBi
Konrad Birkner † 12.08.2014


Usage in Models 1= 1921 ; 3= 1922? ; 11= 1922 ; 1= 1923? ; 19= 1923 ; 11= 1924

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):46


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