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| A2900 Pinout |
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| A2900 Substitutes |
| Different rating or performance |
12AT7, 12AT7WA, 12AT7WC, 6060, 6201, 6679, 7492, 7728, B152, B309, B739, CC81E, CK6201, CV10662, CV4024, CV455, CV8154, CV9859, E2157, E81CC, ECC801, ECC801S, ECC81, M8162, QA2406, 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. |
| A2900 Ratings |
No information available |
| A2900 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 |
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| A2900 Data sheet links |
| Dave Cigna''s Pages (DuncanAmps mirror) |
12AT7: html |
| Duncan''s Amp Pages |
A2900: Acrobat PDF |
| Peter Millett |
12AT7: Acrobat PDF 190K, Acrobat PDF 73K 6201: Acrobat PDF 517K |
| National Valve Museum |
12AT7WA: html B309: html2 |
| oldradio.qrz.ru |
12AT7: MK buizen handboek ECC81: MAZDA Valves & Picture Tubes Data |
| Frank Philipse (Wildcat mirror - Jörg Jan Münter) |
12AT7: 12AT7.pdf (114339 bytes), 12AT7.pdf (1275250 bytes), 12AT7.pdf (153704 bytes), 12AT7.pdf (169445 bytes), 12AT7.pdf (349186 bytes) (fr), 12AT7.pdf (364446 bytes) 12AT7WA: 12AT7WA.pdf (332854 bytes), 12AT7WA.pdf (336796 bytes), 12AT7WA.pdf (5129310 bytes) (fr), 12AT7WA.pdf (646705 bytes) (fr), 12AT7WA.pdf (872338 bytes) 6060: 6060.pdf (82914 bytes) 6201: 6201.pdf (386816 bytes), 6201.pdf (494719 bytes), 6201.pdf (528431 bytes), 6201.pdf (571768 bytes), 6201.pdf (572636 bytes), 6201.pdf (902849 bytes) 6679: 6679.pdf (100242 bytes), 6679.pdf (197556 bytes), 6679.pdf (337075 bytes) 7492: 7492.pdf (84101 bytes) 7728: 7728.pdf (177245 bytes) B309: B309.pdf (312704 bytes) E81CC: E81CC.pdf (314820 bytes) (de) ECC801S: ECC801S.pdf (214912 bytes) (de), ECC801S.pdf (311423 bytes) ECC81: ECC81.pdf (100668 bytes), ECC81.pdf (150741 bytes), ECC81.pdf (415333 bytes), ECC81.pdf (598435 bytes), ECC81.pdf (98394 bytes) (de) |
| Triode Electronics |
12AT7: gif1, gif2, gif3, gif4, gif5 |
| TubeZone |
12AT7: pdf |
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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