S409

Country:	Austria		Brand:	Triotron = Brand of Schrack, Austria
			Tube type:	Screen-grid Tetrode

Tube ID = 12976


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Identical to	S409
Similar Tubes	Normally replaceable-slightly different: B442; H406D; H410D; RES094; S406; S410

Base	Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Er)
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 0.1 Ampere / -: Direct /
Literature	Taschenbuch zum Röhren-Codex 1948/49

Triotron Röhrenkatalog von 1942
Wolfgang Bauer

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S409

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