Antique radios, Old Time Radios

EF93

ID = 725

Country:

Europe

Brand:	Common type Europe tube/semicond.
Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Identical to

EF93 = 6BA6 = 6К4П = W727 = CV454 = PM04

Similar Tubes

Normally replaceable-slightly different:

6K4_China

Other class quality (otherwise equal):

5749 ; 6660 ; CK5749

Heater different:

HF93

Other base:

6DG7 ; EF89F

First year

1950 Tube leaflet collection E.Erb Analysis by original leaflets

First Source (s)

Nov.1951 : Funkschau # 22

Base	Miniatur-7-Pin-Base B7G, USA 1940
Filament	Indirect
Tube prices	6 Tube prices (visible for members only)


	EF93: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

EF93: My own collection
Hannu Alho

EF93: RTT 1974 (Franzis) 13. Auflage
Martin Renz

EF93: RCA Tube Manual
Peter Hoddow

Usage in Models

1= 1950?? ; 1= 1951?? ; 1= 1951? ; 5= 1951 ; 2= 1952?? ; 6= 1952? ; 19= 1952 ; 5= 1953?? ; 12= 1953? ; 70= 1953 ; 11= 1954?? ; 8= 1954? ; 63= 1954 ; 10= 1955?? ; 9= 1955? ; 30= 1955 ; 5= 1956?? ; 5= 1956? ; 30= 1956 ; 3= 1957?? ; 9= 1957? ; 13= 1957 ; 4= 1958?? ; 2= 1958? ; 23= 1958 ; 2= 1959?? ; 6= 1959? ; 20= 1959 ; 12= 1960?? ; 2= 1960? ; 11= 1960 ; 2= 1961?? ; 2= 1961? ; 7= 1961 ; 2= 1962?? ; 2= 1962 ; 3= 1963? ; 4= 1963 ; 1= 1964?? ; 2= 1964? ; 9= 1964 ; 7= 1965?? ; 1= 1965? ; 3= 1966?? ; 2= 1966 ; 1= 1967 ; 1= 1968?? ; 1= 1970?? ; 1= 1973?? ; 1= 1973 ; 1= 9999?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):453

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