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PM2D1

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ID = 57956
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Mullard Radio Valve Co. Ltd.;  
Tube type:  Triode, vacuum   Audio Frequency 
Identical to PM2D1
Similar Tubes
Normally replaceable-slightly different:
  PM2DL

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description Driver for Class B.
Metallised bulb.
There is no other documentation known but in "The Broadcaster" April 1935 Supplement "Service Engineer": Ever Ready model 5001 where the PM2D1 is noted more than once.
It can be suspected that by misunderstanding in fact the PM2DL is meant, which apparently is quite similar to what can be seen in the a.m. paper. 
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b4_base_pins~~70.png PM2D1: Fin Stewart
Fin Stewart


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