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PM4DX

Information - Help 
ID = 14627
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Detector 
Identical to PM4DX
Similar Tubes
Normally replaceable-slightly different:
  1515 ; 410LF ; CV1151 ; CV1152 ; D15 ; HX406 ; SM414
Other base:
  PM4DX_UX
Successor Tubes NR15  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 3.8 Volts / If 0.1 Ampere / Direct / Specified current DC = (Series working)
Description

Heater Voltage range 3.8 to 4V.

The PM4DX is also listed as suitable for battery sets as well as for series DC operation.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   Tube manual 1934-35
 
pm4dx_1.jpg
PM4DX: minha colecçao
Fernando Monteiro

More ...
 
pm3_4.png
PM4DX: Manufacturer's Literature
Emilio Ciardiello

 

from Just Qvigstad

Usage in Models 1= 1927? ; 3= 1928? ; 1= 1928 ; 3= 1929 ; 1= 1930 ; 2= 1931 ; 1= 1932 ; 1= 1935?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13


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