221D

Country:	United States of America (USA)		Brand:	Western Electric Company Inc.; New York (NY)
			Tube type:	Triode, vacuum Universal

Tube ID = 28961


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Identical to	221D = UV201A
First Series	1926 Saga of the Vacuumtube, Tyne page 295-297

Base	UV-Base (4 Pins+Bayonet, USA 1914)
Was used by	Radio/TV-reception etc.
Filament	Vf 5 Volts / If: 0.25 Ampere / -: Direct / -: Battery = /
Description	Designed for Northern Electric of Canada.

KoBi
Konrad Birkner

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221D

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