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MU14

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ID = 7997
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to MU14
Similar Tubes
Normally replaceable-slightly different:
  IFW1 ; MU12/14
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Em)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2.5 Ampere / Half indirect
Description

<500V rms; iav <120mA

 
Information source History of the British Radio Valve to 1940   p. 147 & 175
Babani, International Radio Tube Encyclopaedia   p. 282 & 283
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
mu14_app.png
MU14: GEC's catalogue supplement
Anonymous 413 Collector
s_377_g_5.gif MU14: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

Just Qvigstad 		mu14_data.png
MU14: MARCONI RECEIVING VALVES, LONDON, 1938
Jose Casas-Avalos
Usage in Models 1= 1932? ; 2= 1932 ; 1= 1933 ; 1= 1934? ; 10= 1934 ; 1= 1935 ; 2= 1936? ; 1= 1936 ; 1= 1937 ; 3= 1949 ; 1= 1950
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24

Collection of

Roy Johnson (GB)
Jose Luis Espinosa Gonzalez (E)
Jan Poortman (NL)
Georges Werts (B)
Robert Sarbell † 22.3.22 (USA)
Collection of a member from FIN
Bekir Yurdakul (F)
 
mu14_1.jpg

MU14
 
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