Antique radios, Old Time Radios

6X4

Country:	United States of America (USA)	Brand:	Common type USA tube/semicond.
		Developer:	Tung-Sol Electric Inc.; Newark (NJ)
		Tube type:	Full-Wave Vacuum Rectifier Power-supply

Tube ID = 3258

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Identical to	6X4 = 6Z31 = EZ90 = CV493 = U78 = 80BK = KX-80BK = V2M70
Similar Tubes	Other class quality (otherwise equal): 6063; 6X4W; CV4005 Different maximum ratings: 6202; 6BX4; 6X4WA Heater different: 12X4 Different connections: 6Z4_China; 6z4p Other base: 6X5; 6X5GT; EZ40A Other base and data slightly different: CV4001 Other base and other heater: GZ41
First Source (s)	20.Feb.1946 : Electron Tube Registration List 475
Predecessor Tubes	6X5 6X5GT 6X5G 7Y4
Successor Tubes	6BX4 EZ90 5993 6203

Base	Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Za)
Filament	Vf 6.3 Volts / If: 0.6 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Description	Originally intended for automobile receivers.
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	6X4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Michael Schlör

6X4: Collection JR
Jacob Roschy

Variants

6X4: 6X4 GE Data Sheet 5-58
Vitor Oliveira

6X4: RCA Tube Manual
Peter Hoddow

Usage in Models

1= 1939?? ; 1= 1945?? ; 3= 1946?? ; 4= 1946? ; 2= 1947? ; 1= 1947 ; 9= 1948?? ; 5= 1948? ; 27= 1948 ; 8= 1949?? ; 15= 1949? ; 60= 1949 ; 61= 1950?? ; 20= 1950? ; 81= 1950 ; 18= 1951?? ; 65= 1951? ; 106= 1951 ; 23= 1952?? ; 33= 1952? ; 105= 1952 ; 30= 1953?? ; 36= 1953? ; 92= 1953 ; 26= 1954?? ; 33= 1954? ; 123= 1954 ; 45= 1955?? ; 24= 1955? ; 101= 1955 ; 16= 1956?? ; 27= 1956? ; 45= 1956 ; 9= 1957?? ; 30= 1957? ; 23= 1957 ; 5= 1958?? ; 26= 1958? ; 92= 1958 ; 4= 1959?? ; 70= 1959? ; 83= 1959 ; 49= 1960?? ; 17= 1960? ; 10= 1960 ; 4= 1961?? ; 17= 1961? ; 6= 1961 ; 3= 1962?? ; 11= 1962? ; 10= 1962 ; 3= 1963?? ; 8= 1963? ; 15= 1963 ; 3= 1964?? ; 1= 1964? ; 10= 1964 ; 17= 1965?? ; 5= 1965? ; 7= 1965 ; 1= 1966?? ; 2= 1966? ; 7= 1966 ; 1= 1967?? ; 1= 1967? ; 1= 1967 ; 3= 1968?? ; 3= 1968? ; 4= 1970?? ; 3= 1971? ; 1= 1973? ; 2= 1975?? ; 1= 1975? ; 5= 9999

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1819

6X4*Box		mp	mp	Sammlung J.P.Brömme Jan Peter Brömme

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6X4

6X4*Box