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ID = 10056
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Mullard Wireless, London (see also Mullard Radio Valve) 
Tube type:  Vacuum Pentode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to EF36 = BVA247 = VR56 = 10E/11402 = 5A/157D = VT201_GPO = 1260 = NR49 = OM5
Similar Tubes
Other class quality (otherwise equal):
  EF37 ; EF37A ; OM5B
Other base:
Multiple differences or of other kind:
First year 1939 -- Collector info (Sammler)
First Source (s)
1939 : History of the British Radio Valve to 1940
Predecessor Tubes EF6  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 5 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   Pages 104-105

EF36: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

oc10_2~~4.png EF36: RTT 1974 (Franzis) 13. Auflage
Martin Renz

Just Qvigstad
EF36: electron Tube Data sheets
Anonymous 810 Collector

More ...
Usage in Models 1= 1945?? ; 1= 1947?? ; 1= 1947? ; 1= 1948?? ; 2= 1948? ; 2= 1948 ; 1= 1949? ; 1= 1949 ; 1= 1952?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):11

Collection of



Forum contributions about this tube
Threads: 1 | Posts: 1
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EF36 en triode
Michel Deluz

 Le tube EF36 est l'équivalent exact du EF6, à part le culot. Il est donc très intéressant monté en triode pour la hifi audio (voir le EF6). Les EF37 et 37A ont encore les mêmes qualités. 


End of forum contributions about this tube

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