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FC4

Information - Help 
ID = 9324
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  OCTODE   Frequency converter 
Identical to FC4
Similar Tubes
Normally replaceable-slightly different:
  AC/OC4 ; ACHL4 ; MH4105 ; O407 ; VO4
Other base:
  AK1
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base British-7-Pin, old (M7A) (Codex=Neo) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.65 Ampere / Indirect / Specified voltage AC/DC
Description

Grid from top cap.

 
Information source History of the British Radio Valve to 1940   p. 149 & 198
Wireless World (The), London (WW, 79)   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

fc4.png FC4: Vademecum Lamp Elektronowych - Warszawa 1957
Anonymous 987 Collector


Just Qvigstad
fc4_techdat01.png
FC4: Mullard Valves 1936
Peter Hoddow

More ...
Usage in Models 5= 1931 ; 7= 1934? ; 16= 1934 ; 2= 1935?? ; 5= 1935? ; 29= 1935 ; 7= 1936? ; 39= 1936 ; 2= 1937? ; 15= 1937 ; 4= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):131

Collection of

 
fc4_01.jpg

FC4
 

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