12AT7
The 12AT7 (European type ECC81) is a dual high-gain triode with a B9A (Noval) miniature 9-pin base. The high-reliability equivalent is the 6201 (E81CC).
Tek part number: 154-0039-00
| Aged/Checked/Matched Pair Details | ||
|---|---|---|
| Used in | Tek Part# | S/N Range |
| 513D (V4, V7, V8) | 157-0008-00 | All |
| 514AD (V9) | 157-0008-00 | All |
| 514D (V6) | 157-0008-00 | All |
| 315 (V201) | 157-0009-00 | All |
| 315 (V213) | 157-0010-00 | All |
| 529 (V113) | 157-0010-00 | 2110-up |
| RM529 (V113) | 157-0010-00 | 4910-up |
| 180 (V302) | 157-0010-00 | All |
| 514D(V4) | 157-0011-00 | up to 3408 |
| 514AD (V6) | 157-0011-00 | All |
| 524D, 524AD (V11) | 157-0030-00 | All |
| Type G Plug-in (V3617,V3627,V3967) | 157-0030-00 | All |
| Type K Plug-in (V5701,V6501,V6551) | 157-0030-00 | All |
Reference: