RCA 12AT7 / ECC81 — 2 Pcs
Square Getter
Black Plate
Amplitrex Tested
Up for sale is a premium matched pair of RCA 12AT7 / ECC81 dual triodes, Made in USA. These highly desirable vintage valves feature the legendary Black Plates and Square Getters, known for providing a rich, detailed, and quiet sonic profile. This pair is New Old Stock (NOS), comes in its original Radiotron boxes, and has been precision-screened on our Amplitrex AT1000 to ensure perfect balance between all four triode sections.
- Type: 12AT7 / ECC81
- Brand: RCA
- Condition: New in Original Box
- Origin: Made in USA
- Testing: Amplitrex AT1000
- Quantity: 2 Pieces (Matched Pair)
| SR. NO. | Test | Parameter Ip (mAdc) | Result Ip (mAdc) | % Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | % Gm |
|---|---|---|---|---|---|---|---|
| 254006 | Triode 1 | 10.0 | 9.8 | 98% | 5500 | 5310 | 97% |
| Triode 2 | 10.0 | 9.0 | 90% | 5500 | 5200 | 95% | |
| 254010 | Triode 1 | 10.0 | 10.4 | 104% | 5500 | 5200 | 95% |
| Triode 2 | 10.0 | 9.2 | 92% | 5500 | 5000 | 91% |
Note: Custom Duties and taxes is the responsibility of the buyer in their country.
About Audio Tubes Shop
We specialized in thoroughly tested and screened quality vacuum tubes since the 1970s. All inventory is screened using premium equipment including the Amplitrex AT1000.
✉️ For technical inquiries, please Email us at [email protected]
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