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12AX7A

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ID = 4062
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Triode   Audio Frequency 
Identical to 12AX7A
Similar Tubes
Normally replaceable-slightly different:
  12AX7 ; 6681 ; 7025A ; ECC83
Differences not known by us:
  12AX7B
First Source (s)
13.Jun.1960 : Electron Tube Registration List 2078ed
Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Description Low-microphonic version of 12AX7.
Early registration in January 6, 1958 to Radio Valve Co. Ltd., Canada, but with carachteristics quite similar to those of 7025. Re-registered in 1960 to RCA. 
Text in other languages (may differ)
Tube prices 10 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Tube Tester Data Avo CT160
12ax7a.png
12AX7A: RCA Receiving Tube Manual
Heinz Höger
no15_9.png 12AX7A: RTT 1974 (Franzis) 13. Auflage
Martin Renz
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Just Qvigstad 		12ax7a_techdat01.png
12AX7A: RCA Tube Manual
Peter Hoddow
Usage in Models 1= 1950?? ; 1= 1952?? ; 1= 1953?? ; 1= 1958?? ; 1= 1958? ; 14= 1959? ; 9= 1959 ; 11= 1960?? ; 17= 1960? ; 16= 1960 ; 2= 1961?? ; 13= 1961? ; 14= 1961 ; 1= 1962?? ; 39= 1962? ; 6= 1962 ; 2= 1963?? ; 79= 1963? ; 20= 1963 ; 1= 1964?? ; 83= 1964? ; 3= 1964 ; 6= 1965?? ; 8= 1965? ; 7= 1965 ; 1= 1966?? ; 1= 1966? ; 1= 1966 ; 1= 1967?? ; 1= 1967? ; 1= 1967 ; 1= 1968? ; 2= 1968 ; 2= 1970?? ; 3= 1970? ; 1= 1970 ; 1= 1971? ; 1= 1971 ; 1= 1972? ; 1= 1972 ; 1= 1973? ; 2= 1975?? ; 1= 1993 ; 1= 2007?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):380

Collection of

Karlheinz Fischer (D)
Danko Tkalec (HR)
Bruno Candreia (CH)
Giorgio Busletta (I)
Karl - Heinz Bossan (D)
Bekir Yurdakul (F)
Christian Schaufelberger (CH)
Collection of a member from D
Stefan Müller (D)
Egon Penker (A)
George Papaiz (CDN)
Nikolaus Löwe (D)
Jozef Brughmans † (B)
Collection of a member from FIN
Bartosz Szwed (GB)
Michael Gnaedig-Fischer (MEX)
Georges Werts (B)
 
12ax7a~~1.jpg

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