Antique radios, Old Time Radios

EF39

Country:	Great Britain (UK)	Brand:	Mullard Radio Valve Co. Ltd.;
		Developer:	Mullard Radio Valve Co. Ltd.;
		Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Tube ID = 2496


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Identical to	EF39 = ARP34 = W147 = OM6 = CV1053 = CV1056 = BVA243 = VR53
Similar Tubes	Normally replaceable-slightly different: OM7 Other base: EF9
First Series	1939 -- Collector info (Sammler)
Predecessor Tubes	EF9

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 / -: Parallel / series AC/DC /
Description	Under the metallising a manufacturers/date/batch code comes to light, e.g. 1002MTA, which may be mistaken as a Type designation.
Tube prices	0 Tube prices (visible for members only)
Literature	-- Collector info (Sammler) Taschenbuch zum Röhren-Codex 1948/49


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

Collection JR
Jacob Roschy

RTT 1974 (Franzis) 13. Auflage
Martin Renz

Manufacturer's Literature
Emilio Ciardiello

Usage in Models (calculation each 25th of the month)

4= 1940?? ; 2= 1940? ; 11= 1940 ; 1= 1941 ; 3= 1942?? ; 5= 1942 ; 1= 1943 ; 1= 1944?? ; 5= 1944 ; 5= 1945?? ; 3= 1945? ; 5= 1945 ; 3= 1946?? ; 5= 1946? ; 44= 1946 ; 2= 1947?? ; 12= 1947? ; 63= 1947 ; 8= 1948?? ; 7= 1948? ; 44= 1948 ; 2= 1949?? ; 2= 1949? ; 16= 1949 ; 6= 1950?? ; 1= 1950? ; 10= 1950 ; 6= 1951 ; 1= 1952?? ; 1= 1954 ; 1= 1956?? ; 1= 1960?? ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 281

Further Information for

EF39

EF39 (EF39) Mullard Manufacturing Codes (07.12.2006) Roy Johnson	Clicks: 1112 Replies: 3
Dear Valve Enthusiasts, There was a recent discussion about the "1002MTA" which turned out to be an EF39 with the metallising and name removed. The following link gives some more information on EF39 markings from valves of the 1939 to 1945 period (and also mentions similar Octal Mullard valves). Click here Best regards and happy collecting and repairing! Roy More ...

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