Antique radios, Old Time Radios

EF9

Country:	Netherlands	Brand:	Philips; - Eindhoven; Netherlands
		Developer:	Philips; - Eindhoven; Netherlands
		Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Tube ID = 275


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Identical to	EF9
Similar Tubes	Other class quality (otherwise equal): 4659 Other characteristic (electr. data): EF9N; WE16 Heater different: UF5 Other base: EF22; EF39 Multiple differences or of other kind: EF9nT
First Series	Apr.1938 Tube leaflet collection E.Erb Analysis by original leaflets
Predecessor Tubes	EF5
Successor Tubes	1941 EF22 EF41 UF9 UF5 EF21_9pin EF39

Base	Europe side contact base P (P8A) (Codex=Sf)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 Volts / If: 0.2 Ampere / -: Indirect / -: Parallel / series AC/DC /
Description	Red series Text in other languages (may differ)
Tube prices	1 Tube prices (visible for members only)
Literature	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

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

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

1= 1937?? ; 4= 1938?? ; 21= 1938? ; 273= 1938 ; 19= 1939?? ; 34= 1939? ; 248= 1939 ; 31= 1940?? ; 29= 1940? ; 153= 1940 ; 3= 1941?? ; 7= 1941? ; 141= 1941 ; 4= 1942?? ; 6= 1942? ; 85= 1942 ; 10= 1943?? ; 2= 1943? ; 45= 1943 ; 3= 1944?? ; 3= 1944? ; 20= 1944 ; 22= 1945?? ; 10= 1945? ; 48= 1945 ; 11= 1946?? ; 3= 1946? ; 36= 1946 ; 17= 1947?? ; 10= 1947? ; 51= 1947 ; 27= 1948?? ; 13= 1948? ; 75= 1948 ; 10= 1949?? ; 7= 1949? ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1648

No further Information for

EF9

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