Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 20416
Great Britain (UK)
Brand: Ferranti, GB
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to VPT4
Similar Tubes
Normally replaceable-slightly different:
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

VPT4: Ferranti Valves, List Wb. 560
Achim Dassow

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

Just Qvigstad
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 with this tube (valve, valves, valvola, valvole, válvula, lampe):24

Collection of



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]