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VPT4

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ID = 20416
       
Country:
Great Britain (UK)
Brand: Ferranti, GB
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to VPT4
Similar Tubes
Normally replaceable-slightly different:
  MVS/Pen_Europa-B5
First Source (s)
11.Aug.1933 : Wireless World (The), London (WW, 79) p 107
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source History of the British Radio Valve to 1940   p. 146 &194
Babani, International Radio Tube Encyclopaedia   p. 156 & 157
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

ferranti_vpt4_circuit.png
VPT4: Ferranti Valves, List Wb. 560
Achim Dassow

ferranti_vpt4_socket.png VPT4: Ferranti Valves List Wb. 560
Achim Dassow


Just Qvigstad
ferranti_vpt4_data.png
VPT4: Ferranti Valves List Wb. 560
Achim Dassow

More ...
Usage in Models 5= 1933 ; 4= 1934 ; 4= 1935 ; 6= 1936 ; 5= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24

Collection of

 
ferranti_vpt4.jpg

VPT4
 

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