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ID = 64220
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: MO Valve Co. Ltd.; GB 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to DEM2
Similar Tubes
Other characteristic (electr. data):
Differences not known by us:

Base Wires Wires only.
Was used by Transmittertube (Radio)
Filament Vf 12.5 Volts / If 3 Ampere / Direct

150W Power triode with thoriated tungsten filament.

Physically similar to the DET2 but with a more open grid winding and lower impedance suited for audio power and modulation purposes.

Dimensions (WHD)
incl. pins / tip
125 x 320 x mm / 4.92 x 12.60 x inch
Information source -- Collector info (Sammler)   
The Saga of Marconi Osram Valve   p. 168


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