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12AT7 Pinout
basing pinout

 

12AT7 Substitutes
Close or identical CV10662, CV455, CV8154, CV9859, ECC81
Different rating or performance 12AT7WA, 12AT7WC, 6060, 6201, 6679, 7492, 7728, A2900, B152, B309, B739, CC81E, CK6201, CV4024, E2157, E81CC, ECC801, ECC801S, M8162, QA2406, QA2407, QS2406

Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application.

 

12AT7 Ratings
Vh Ih VaMax VhkMax PaMax IkMax
6.3 0.3 300 90 2.5 15
12.6 0.15 300 90 2.5 15

 

12AT7 Application Data
Class Va Vg1 Ia Ra S
Triode 100 -1 3 16,500 3.75
Triode 170 -1 8.5 11,000 5.9
Triode 200 -1 11.5 10,500 6.7
Triode 250 -2 10 11,000 5.5

 

12AT7 Data sheet links
Automatica 12AT7: html
Dave Cigna''s Pages (DuncanAmps mirror) 12AT7: html
David Crittle''s site (Retrovox) 12AT7: Acrobat PDF application sheet
Peter Millett 12AT7: Acrobat PDF 190K, Acrobat PDF 73K
National Valve Museum 12AT7: html
oldradio.qrz.ru 12AT7: MK buizen handboek  ECC81: MAZDA Valves & Picture Tubes Data
Penta Laboratories ECC81: Acrobat PDF
Frank Philipse 12AT7: .gif file, 093/1/12AT7.pdf  CV455: 126/b/B309.pdf  ECC81: 010/e/ECC81.pdf, 030/e/ECC81.pdf, 082/e/ECC81.pdf
Triode Electronics 12AT7: gif1, gif2, gif3, gif4, gif5
TubeZone 12AT7: pdf
Virtual Valve Museum ECC81: HTML page
WPS 12AT7: html page

 

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