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AC044

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ID = 15517
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Mullard Radio Valve Co. Ltd.;  
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to AC044
Similar Tubes
Normally replaceable-slightly different:
  CV1168 ; HV4/2 ; NR44 ; VT131_GPO
Heater different:
  AC042
Other base:
  AC044_UX
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Description

Pa max 12W. Gm 6.8mA/V. In some documents the valve is written as ACO44.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   und 1951
Babani, International Radio Tube Encyclopaedia   p. 48 & 49
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
History of the British Radio Valve to 1940

px4_2.png AC044: Manufacturer's Literature
Emilio Ciardiello

More ...

Just Qvigstad
ac044_data.png
AC044: Mullard
Robert Schmalstieg

More ...
Usage in Models 1= 1934 ; 3= 1935? ; 4= 1935 ; 4= 1936 ; 6= 1939

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):18

Collection of

 
ac044.jpg

AC044
 

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