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ID = 9322
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  OCTODE   Frequency converter 
Identical to FC2 = K80A
Similar Tubes
Normally replaceable-slightly different:
Heater different:
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base British-7-Pin, old (M7A) (Codex=Nt) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.125 Ampere / Direct / Battery =

Max Va = 150, Vg2 max = 70. Metallised bulb only supplied. Price 18/6 in 1935.

Information source History of the British Radio Valve to 1940   p. 140 & 198
Babani, International Radio Tube Encyclopaedia   p. 106 & 107
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

561.png FC2: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
FC2: Mullard Valves 1936
Peter Hoddow

Usage in Models 1= 1934 ; 4= 1935 ; 1= 1936? ; 4= 1936 ; 1= 1937? ; 1= 1937

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):12

Collection of



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