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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
Dave Cigna''s Pages (DuncanAmps mirror) 12AU7: html
David Crittle''s site (Retrovox) 12AU7: Acrobat PDF application sheet
Peter Millett 12AU7-A: Acrobat PDF 261K, Acrobat PDF 71K  5814-A: Acrobat PDF 559K  5963: Acrobat PDF 144K
National Valve Museum 12AU7: html  ECC82: html2, html3
oldradio.qrz.ru 12AU7: MK buizen handboek  ECC82: MAZDA Valves & Picture Tubes Data  ECC802S: html page
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  12AU7A: Acrobat PDF  12AU7WA: 087/6/6189.pdf  5814: 137/5/5814.pdf  5814A: 137/5/5814A.pdf  5963: 137/5/5963.pdf  6189: 009/6/6189.pdf, 062/e/E82CC.pdf, 117/e/ECC802S.pdf  6680: 049/6/6680.pdf  E82CC: 009/e/E82CC.pdf
Frank Philipse (Pocnet mirror - Patrik Schindler) 12AU7: 12AU6.pdf (95897 bytes), 12AU7.pdf (1473424 bytes), 12AU7.pdf (251177 bytes), 12AU7A.pdf (444785 bytes)  ECC82: ECC82.pdf (175140 bytes), ECC82.pdf (239254 bytes), ECC82.pdf (2779915 bytes) (cs), ECC82.pdf (507616 bytes), ECC82.pdf (634994 bytes), ECC82.pdf (96400 bytes) (de)  12AU7A: 12AU7A.pdf (253152 bytes), 12AU7A.pdf (449497 bytes) (fr), 12AU7A.pdf (79130 bytes)  5814: 5814.pdf (237389 bytes)  5814A: 2050.pdf (813252 bytes), 5814A.pdf (128622 bytes) (de), 5814A.pdf (227038 bytes), 5814A.pdf (249284 bytes), 5814A.pdf (300523 bytes) (de), 5814A.pdf (531716 bytes)  5963: 5823.pdf (418813 bytes), 5963.pdf (163234 bytes), 5963.pdf (217660 bytes), 5963.pdf (224020 bytes)  6067: 6067.pdf (65089 bytes)  6189: 6189.pdf (198246 bytes), 6189.pdf (322241 bytes), 6189.pdf (336302 bytes), 6189.pdf (718961 bytes) (fr), 6189.pdf (91329 bytes)  6680: 6201.pdf (902849 bytes), 6680.pdf (250933 bytes), 6680.pdf (317855 bytes), 6680.pdf (93423 bytes)  7489: 7489.pdf (85272 bytes)  7730: 7730.pdf (230478 bytes)  B329: B329.pdf (69455 bytes)  E82CC: E82CC.pdf (136244 bytes) (de), E82CC.pdf (258747 bytes), E82CC.pdf (268313 bytes) (de)  ECC802S: ECC802S.pdf (1032230 bytes) (cs), ECC802S.pdf (128269 bytes), ECC802S.pdf (212515 bytes) (de), ECC802S.pdf (242098 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 12AU7: 12AU6.pdf (95897 bytes), 12AU7.pdf (1473424 bytes), 12AU7.pdf (251177 bytes), 12AU7A.pdf (444785 bytes)  ECC82: ECC82.pdf (175140 bytes), ECC82.pdf (239254 bytes), ECC82.pdf (2779915 bytes) (cs), ECC82.pdf (507616 bytes), ECC82.pdf (634994 bytes), ECC82.pdf (96400 bytes) (de)  12AU7A: 12AU7A.pdf (253152 bytes), 12AU7A.pdf (449497 bytes) (fr), 12AU7A.pdf (79130 bytes)  5814: 5814.pdf (237389 bytes)  5814A: 2050.pdf (813252 bytes), 5814A.pdf (128622 bytes) (de), 5814A.pdf (227038 bytes), 5814A.pdf (249284 bytes), 5814A.pdf (300523 bytes) (de), 5814A.pdf (531716 bytes)  5963: 5823.pdf (418813 bytes), 5963.pdf (163234 bytes), 5963.pdf (217660 bytes), 5963.pdf (224020 bytes)  6067: 6067.pdf (65089 bytes)  6189: 6189.pdf (198246 bytes), 6189.pdf (322241 bytes), 6189.pdf (336302 bytes), 6189.pdf (718961 bytes) (fr), 6189.pdf (91329 bytes)  6680: 6201.pdf (902849 bytes), 6680.pdf (250933 bytes), 6680.pdf (317855 bytes), 6680.pdf (93423 bytes)  7489: 7489.pdf (85272 bytes)  7730: 7730.pdf (230478 bytes)  B329: B329.pdf (69455 bytes)  E82CC: E82CC.pdf (136244 bytes) (de), E82CC.pdf (258747 bytes), E82CC.pdf (268313 bytes) (de)  ECC802S: ECC802S.pdf (1032230 bytes) (cs), ECC802S.pdf (128269 bytes), ECC802S.pdf (212515 bytes) (de), ECC802S.pdf (242098 bytes)
Triode Electronics 12AU7: gif01, gif02, gif03, gif04, gif05, gif06, gif07, gif08, gif09, gif10, gif11, gif12
TubeZone 12AU7: pdf
Virtual Valve Museum ECC82: HTML page

Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Please see the substitutes at the top of the page for more details

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