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ID = 14894
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Triode, vacuum   Universal 
Identical to TS4

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.08 Ampere / Direct / Battery =
Description Heizung 3,4 - 3,7V/0,06A; Sättigungsstr. 6mA; Anodenspannung 20 - 50V; Durchgriff 14%; Steilheit 0,5mA/V; Innerer Widerstand 18000Ω; Anwendung: H.A.N.; Preis 1927: 10,50ATS. Daten aus dem WEKA-Katalog 1927, Seite 169. 
Information source Taschenbuch zum Röhren-Codex 1948/49   p.463
Saga of the Vacuum Tube, Tyne
TS4: Ebay item July 2019
Fin Stewart

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TS4: rtt
Anonymous 10 Collector

TS4: Funk-Bastler 1927, Heft 14
Hartmut Völler

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