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WD11

Country:  United States of America (USA)      Brand:  RCA (RCA Victor Co. Inc.); New York (NY) 
  Developer:  Westinghouse El. & Mfg. Co. - see also Canadian W. 
  Tube type:  Triode, vacuum   Universal 
Tube ID = 3615
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Identical to WD11 = 11 = C11
Similar Tubes Normally replaceable-slightly different:
 M11
Other base:
 12; WD12; WX12
First Series   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)
Was used by Radio/TV-reception etc.
Filament Vf 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 3 Tube prices (visible for members only)
Literature Saga of the Vacuumtube, Tyne   
Taschenbuch zum Röhren-Codex 1948/49   

  exampleforusingwd11.png
  RCA
Anonymous 56 Collector
usa_aeriotron_wd11.jpg
Aeriotron
Anonymous 56 Collector

 
Variants
wd11sockelbild_2.png
KoBi
Konrad Birkner

 
wd11.gif
KoBi
Konrad Birkner

Usage in Models (calculation each 25th of the month)   4= 1922 ; 6= 1923 ; 5= 1924 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   15

  Variants


KoBi
Konrad Birkner
Aeriotron; Brass Base; tipped; clear glass

First type: Aeriotron; Brass Base; tipped; clear glass envelope;1.25 inch dia.; overall height ca 4.5 inch; no getter; January 1922; Tyne p.310

24.Aug.2005 Ernst Erb

Radiotron; Brass Base; tipped; clear glass, lime g

Second type: Radiotron; Brass Base; tipped; clear glass envelope;1.25 inch dia.; overall height ca 4.5 inch; lime getter; late in 1922; Tyne p.310

24.Aug.2005 Ernst Erb


KoBi
Konrad Birkner

KoBi
Konrad Birkner
R; Bakelite Base, tipped; clear glass, lime getter

Third type: Radiotron; Bakelite Base, tipped; clear glass envelope; 1 inch dia.; overall height ca 3.6 inch; lime getter;

24.Aug.2005 Ernst Erb

R. Bakelite Base, no tip; clear gl., lime getter

Fourth type: Radiotron; Bakelite Base, no tip; clear glass envelope; 1 inch dia.; overall height ca 3.5 inch; lime getter;

24.Aug.2005 Ernst Erb


KoBi
Konrad Birkner

KoBi
Konrad Birkner
R. Bakelite Base, no tip; opaque gl. mag.getter?

Fifth type: type: Radiotron; Bakelite Base, no tip; opaque glass envelope; 1 inch dia.; overall height ca 3.5 inch; magnesium (?) getter;

24.Aug.2005 Ernst Erb

No further Information for

WD11    

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