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12AT7 Info
Country:  United States of America (USA)      Brand:  Common type USA 
  Tube type:  Double Triode   VHF 
Tube ID = 3539
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Identical to 12AT7 = ECC81 = CV455 = CC81E
Similar Tubes CV4024 (other class quality (otherw. equal))   12DT8 (different connections)   12AT7WC (other class quality (otherw. equal))   6679 (can normally be replaced - small diff'ce)   M8162 (other class quality (otherw. equal))   12AZ7A (Heater different)   6060 (other class quality (otherw. equal))   12AT7WA (other class quality (otherw. equal))   12AT7WB (other class quality (otherw. equal))   7728 (other class quality (otherw. equal))  
First Source (s) 20.May.1947 : Electron Tube Registration List
Predecessor Tubes 6J6   14F8  
Successor Tubes 1954 ECC85   6AQ8  

Base Noval, B9A (Codex=No 15)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Series, AC/DC / If: 0.15 Ampere / Vf 12 Volts /
Description Centre-Tapped heater can operate at 6.3V 0.3A. 
Text in other languages (may differ)
Tube prices 0 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

  12at7.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
12at7.jpg
Röhrensammlung
Wolfgang Bauer

 
no15_4.png
RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
12at7_techdat01.png
RCA Tube Manual
Peter Hoddow

Usage in Models   3= 1939 ; 1= 1947 ; 5= 1948? ; 62= 1948 ; 3= 1949?? ; 10= 1949? ; 75= 1949 ; 32= 1950?? ; 15= 1950? ; 49= 1950 ; 17= 1951?? ; 29= 1951? ; 58= 1951 ; 32= 1952?? ; 17= 1952? ; 25= 1952 ; 10= 1953?? ; 9= 1953? ; 18= 1953 ; 9= 1954?? ; 25= 1954? ; 47= 1954 ; 20= 1955?? ; 37= 1955? ; 35= 1955 ; 11= 1956?? ; 8= 1956? ; 38= 1956 ; 6= 1957?? ; 13= 1957? ; 11= 1957 ; 5= 1958?? ; 11= 1958? ; 21= 1958 ; 2= 1959?? ; 3= 1959? ;
Number of Models with this tube   1098
No further Information for

12AT7    

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