Antique radios, Old Time Radios

12AX7

Country:	United States of America (USA)	Brand:	Common type USA tube
		Developer:	RCA (RCA Victor Co. Inc.); New York (NY)
		Tube type:	Double Triode Universal

Tube ID = 3730

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Identical to	12AX7 = ECC83 = 95-127-01 = CV492 = CM1
Similar Tubes	Normally replaceable-slightly different: 12AX7A; 12AX7WAH; 7058 Other class quality (otherwise equal): 12AX7S; 7025; 7729; CV4004 Other base and other heater: 6EU7 Multiple differences or of other kind: 12AD7
First Source (s)	25.Sep.1947 : Electron Tube Registration List 606
Predecessor Tubes	6SL7GT 7F7 12SL7GT 6SL7
Successor Tubes	7025A 7025 7247 12DW7 ECC83 5751 CK5751 5751WA

Base	Noval, B9A (Codex=No 15)
Filament	Vf 12.6 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Description	High-mu miniature twin-triode, same electrical characteristics of 6SL7GT/12SL7GT. Intended as general purpose high-gain amplifier, it found its elective use in low-level audio preamplifiers.
Tube prices	3 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	12AX7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

12AX7: My Collection
Danko Tkalec

12AX7: RTT 1974 (Franzis) 13. Auflage
Martin Renz

12AX7
Dirk Taekels

Usage in Models

1= 1945? ; 1= 1948?? ; 6= 1949? ; 2= 1949 ; 12= 1950?? ; 2= 1950? ; 6= 1950 ; 2= 1951?? ; 6= 1951? ; 8= 1951 ; 1= 1952?? ; 4= 1952? ; 13= 1952 ; 2= 1953?? ; 8= 1953? ; 14= 1953 ; 9= 1954?? ; 25= 1954? ; 74= 1954 ; 40= 1955?? ; 62= 1955? ; 64= 1955 ; 26= 1956?? ; 47= 1956? ; 117= 1956 ; 6= 1957?? ; 40= 1957? ; 37= 1957 ; 15= 1958?? ; 115= 1958? ; 267= 1958 ; 8= 1959?? ; 470= 1959? ; 358= 1959 ; 79= 1960?? ; 89= 1960? ; 93= 1960 ; 10= 1961?? ; 59= 1961? ; 40= 1961 ; 8= 1962?? ; 122= 1962? ; 45= 1962 ; 7= 1963?? ; 70= 1963? ; 36= 1963 ; 8= 1964?? ; 43= 1964? ; 28= 1964 ; 35= 1965?? ; 8= 1965? ; 24= 1965 ; 7= 1966?? ; 9= 1966? ; 12= 1966 ; 3= 1967?? ; 7= 1967? ; 13= 1967 ; 3= 1968?? ; 3= 1968? ; 7= 1968 ; 1= 1969?? ; 1= 1969? ; 8= 1969 ; 5= 1970?? ; 2= 1970? ; 3= 1970 ; 6= 1971? ; 5= 1971 ; 1= 1972?? ; 1= 1972? ; 1= 1972 ; 1= 1973?? ; 1= 1973? ; 2= 1973 ; 2= 1974? ; 2= 1974 ; 2= 1975?? ; 3= 1975 ; 3= 1977? ; 2= 1977 ; 1= 1980? ; 1= 1981 ; 4= 1982 ; 1= 1983 ; 2= 1984 ; 1= 1992 ; 1= 2006 ; 1= 2009? ; 1= 9999??

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 2801

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