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BTS215

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ID = 37122
       
Country:
Great Britain (UK)
Brand:
Developer: Ediswan, Siemens Edison Swan Electric Co.; London 
Tube type:  Double Triode   Audio Frequency 
Identical to BTS215

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 2 Sidecontacts.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.15 Ampere / Direct / Battery =
Description

Two triodes with a common filament.

 
Information source Wireless World (The), London (WW, 79)   26th Sept 1928
British Radio Valves - The Classic Years: 1926-1946   Supplement p. 32


Just Qvigstad

Collection of

 
bts_215.jpg

 

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