WD 11, Tube WD11; Röhre WD 11 (WD11)

Antique radios, Old Time Radios

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


	RCA Anonymous 56 Collector

Aeriotron
Anonymous 56 Collector

Variants

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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Variants

Aeriotron; Brass Base; tipped; clear glass

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

R; Bakelite Base, tipped; clear glass, lime getter

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

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

WD11