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PM254

Information - Help 
ID = 16193
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Power/Output 
Identical to PM254 = CV1153
Similar Tubes
Normally replaceable-slightly different:
  420SP ; L44
Other base:
  PM254_UX
First Source (s)
1929 : History of the British Radio Valve to 1940 p. 165
Successor Tubes NR16   CV1154   NR16A  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 3.6 Volts / If 0.2 Ampere / Direct / Battery =
Description

"Super-Power" Valve. Gm of 3 for Va=100, Ia=10.0, -Vg=15. Optimum load=6k.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   p. 130 & 131
- - Manufacturers Literature
 
uk_mullard_pm254.jpg
PM254
Alan Scott Douglas † 16.11.15

 
nr15_1.png
PM254: Manufacturer's Literature
Emilio Ciardiello

 
uk_mullard_pm254_data.png
PM254: Mfg. data sheet
Jay Kinnard


from Just Qvigstad

Usage in Models 3= 1929 ; 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


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