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VS2_Ferranti

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ID = 20303
       
Country:
Great Britain (UK)
Brand: Ferranti, GB
Developer: Ferranti, GB 
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to VS2_Ferranti
Similar Tubes
Normally replaceable-slightly different:
  S215VM
First Source (s)
16.Mar.1934 : Wireless World (The), London (WW, 79)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description

Metallised. This is a variable mu tube.
Va <150; Vs <70; Ra 0.44 Mohms; Gm 1mA/V;

 
Information source History of the British Radio Valve to 1940   p. 146 & 193
Babani, International Radio Tube Encyclopaedia   p. 158 & 159
Taschenbuch zum Röhren-Codex 1948/49

136~~1.png VS2_Ferranti: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

 
gb_ferranti_vs2.jpg

VS2_Ferranti
 

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