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PM2B

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ID = 16185
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Double Triode   Power/Output 
Identical to PM2B
Similar Tubes
Normally replaceable-slightly different:
  BB240
Other base:
  PM2B_6pin
Base British-7-Pin, old (M7A) (Codex=No)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Description

Designed for class B operation with no negative grid bias. (1935 Data Book)

 
Information source History of the British Radio Valve to 1940   p. 150 & 167
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
518_2.png PM2B: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
Usage in Models 1= 1930 ; 3= 1931 ; 2= 1932? ; 1= 1933? ; 1= 1933 ; 2= 1934 ; 1= 1935? ; 2= 1935 ; 1= 1937?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):14

Collection of

Karlheinz Fischer (D)
Frank Cuffe (IRL)
Robert Gillespie (USA)
Tomasz Szczesniak (PL)
Geri Meier (CH)
 
pm2bmullard_klein.jpg

PM2B
 
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