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ID = 28794
Great Britain (UK)
Brand: Scott - Taggart (Author)
Tube type:  Triode, vacuum   Power/Output 
Identical to ST42
Similar Tubes
Heater different:
First year Feb.1927 Saga of the Vacuumtube, Tyne page 395
First Source (s)
03.Nov.1926 : The Wireless World, London (WW, 79) "On sale" advt p22-23

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =

Hersteller: S.T. Co Ltd, Great Britain

ST42: Photo of tube from my collection - TS
Tomasz Szczesniak


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