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ID = 28035
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Audio Frequency 
Identical to PM5X
First Source (s)
1927 : History of the British Radio Valve to 1940 p. 160

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 0.075 Ampere / Direct / Battery =

Medium Impedance. Gm = 1.2mA/V at Va = 100, Ia = 1.2mA and -Vg = 1.5 to 3.0 V.

Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   
PM5X: own collection
Sinisa Trlin

More ...
PM5X: Fin Stewart
Fin Stewart

PM5X: Web
Sinisa Trlin

from Just Qvigstad

Usage in Models 1= 1927

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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