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ID = 9325
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  OCTODE   Frequency converter   Controlling (mu) 
Identical to FC13 = CK1
Similar Tubes
Normally replaceable-slightly different:
Other base:

Base Europe side contact P8A (Au P, 8SC) (Codex=Seo) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC

Grid from top cap.

Dimensions (WHD)
incl. pins / tip
42 x 110 x mm / 1.65 x 4.33 x inch
Weight 50 g / 1.76 oz
Information source History of the British Radio Valve to 1940   p. 149 & 198
-- Collector info (Sammler)   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

25_12.png FC13: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
FC13: Mullard-original papers
Bernd Staginnus

Usage in Models 1= 1931 ; 6= 1933? ; 10= 1934 ; 16= 1935 ; 1= 1936

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):34

Collection of



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