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ID = 51835
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Vacuum Pentode   Power/Output 
Identical to N37

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description Pa <9W, Va <165.

Audio output power up to 4.1W for a single valve with 10% distortion.
Up to 13.3W available in AB1 Push-Pull with 4.5% distortion. 

Dimensions (WHD)
incl. pins / tip
19 x 70 x mm / 0.75 x 2.76 x inch
Information source - - Manufacturers Literature   GEC April 1952

Just Qvigstad
N37: own collection
Peter den Boer

More ...
Usage in Models 2= 1950 ; 3= 1951 ; 2= 1952 ; 1= 1956?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):8

Collection of



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