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ID = 25824
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to U107

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 40 Volts / If 0.1 Ampere / Indirect / Series, AC/DC

Va <250; Ia <90mA; Reservoir C <12µF; Series R >200 ohms.

Information source - - Manufacturers Literature   
  U107: Adapted from HMV 1507 / HMV 1508
Michael Watterson
U107: my own photo
Michael Watterson

U107: AWV Radiotron Valve Data Book
Stuart Irwin

U107: AWV Radiotron Valve Data Book
Stuart Irwin

from Just Qvigstad

Usage in Models 2= 1950? ; 1= 1951 ; 1= 1953?? ; 1= 1953? ; 1= 1953 ; 1= 1954

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):7

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