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WD12 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 = 15065 previous  |  next Identical to WD12 = 12 = C12_Triode Similar Tubes Other base:  11; CX12; WD11; WX12 First Series   1923 Saga of the Vacuumtube, Tyne page 313 Production stop   1926 Predecessor Tubes WD11   Successor Tubes 1925 WX12   CX12   Base UV-Base (4 Pins+Bayonet, USA 1914) (Codex=Bo) Was used by Radio/TV-reception etc. Filament Vf 1 Volts / If: 0.25 Ampere / -: Direct / -: Battery = / Description WD11 with UV base  Text in other languages (may differ) Tube prices 1 Tube prices (visible for members only) Literature Taschenbuch zum Röhren-Codex 1948/49

KoBi Konrad Birkner   Variants KoBi Konrad Birkner   KoBi Konrad Birkner

Usage in Models (calculation each 25th of the month)   1= 1923? ; 8= 1923 ; 3= 1924? ; 5= 1924 ; 1= 1925 ; Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   18

Variants
O.F. Otto Frosinn	WD12*Bakelit base. Bakelit base. Two lime getter. Glass has 26 mm diameter. 18.Sep.2008 Otto Frosinn

No further Information for WD12

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