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12AU7 Pinout
basing pinout


12AU7 Substitutes
Close or identical CV10323, CV10666, CV4003, CV491, CV8155, CV8221, ECC82
Different rating or performance 12AU7A, 12AU7WA, 5814, 5814A, 5963, 6067, 6189, 6680, 6CC40, 7489, 7730, B329, B749, CK5814, CV3900, CV4016, CV9092, E2163, E82CC, ECC802, ECC802S, M8136

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.


12AU7 Ratings
Vh Ih VaMax VhkMax PaMax IkMax
6.3 0.3 300 180 2.75 20
12.6 0.15 300 180 2.75 20


12AU7 Application Data
Class Va Vg1 Ia Ra S
Triode 100 0 11.8 6,250 3.2
Triode 170 -4.0 10.0 7,200 2.5
Triode 200 -5.5 11.0 7,200 2.5
Triode 250 -8.5 10.5 7,700 2.2


12AU7 Data sheet links
Automatica 12AU7: html
Dave Cigna''s Pages (DuncanAmps mirror) 12AU7: html
City Radio ECC82: html
David Crittle''s site (Retrovox) 12AU7: Acrobat PDF application sheet
National Valve Museum 12AU7: html  ECC82: html2, html3
oldradio.qrz.ru 12AU7: MK buizen handboek  ECC82: html page, MAZDA Valves & Picture Tubes Data
Penta Laboratories ECC82: Acrobat PDF
Frank Philipse 12AU7: .gif file, 126/b/B329.pdf  ECC82: 010/e/ECC82.pdf, 030/e/ECC82.pdf, 082/e/ECC82.pdf
Triode Electronics 12AU7: gif01, gif02, gif03, gif04, gif05, gif06, gif07, gif08, gif09, gif10, gif11, gif12
TubeZone 12AU7: pdf
Virtual Valve Museum ECC82: HTML page
WPS 12AU7: html page


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