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216A_USA

Country:  United States of America (USA)      Brand:  Western Electric Company Inc.; New York (NY) 
  Tube type:  Triode, vacuum   Power/Output 
Tube ID = 19508
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Identical to 216A_USA = 216A_Nissl
First Series   1922 Saga of the Vacuumtube, Tyne

Base UV-Base (4 Pins+Bayonet, USA 1914)
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If: 1 Ampere / -: Direct / -: Battery = /
Description "licensed for use only as a part of the Western Electric loud-speaking telephone outfit", e.g. type 7A or 10A amplifiers.
Mu 6, 100 to 150V. Originally rated for 1500 hours life, then raised to 4000 hours. Intended for PA or radio amplifiers. May be the first WE tube with constant voltage filament. 
Literature Saga of the Vacuumtube, Tyne   
Tube Lore, Sibley, USA 1996   

216a_1.jpg
R.P.
Reinhard Peyerl

 
uvsockel.png
KoBi
Konrad Birkner

 
Usage in Models (calculation each 25th of the month)   4= 1922 ; 1= 1923 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   5
No further Information for

216A_USA    

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