AMPEREX ECC81/12AT7
Laboratory Verified
Classic Amperex Tone
Dual Triode ECC81 / 12AT7 Family
Amplitrex AT1000 TestedGrey Plate
Available for sale is one authentic vintage Amperex ECC81 vacuum tube. This tube features the highly regarded Top Ring Getter, Grey Plate construction, Made in Holland providing the classic detail and musicality that Amperex is famous for in high-end audio applications.
Which comes in New in White Box.
This specimen has been fully characterized on the industry-leading Amplitrex AT1000 analyzer. Whether used for a critical preamplifier stage or a high-fidelity phase inverter, this tube offers the robust performance required for premium audio gear.
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip mAdc | Parameter Gm uMhos | Result Gm uMhos | % Gm uMhos |
|---|---|---|---|---|---|---|---|
| 2138004 | T1 | 10.0 | 8.8 | 88% | 5500 | 4880 | 88.7% |
| T2 | 10.0 | 12.6 | 126% | 5500 | 6050 | 110.0% |
Technical Note: Percentage calculations are based on standard Amplitrex parameters for the ECC81 family (Ip = 10.0mA, Gm = 5,500 uMhos).
Note: Custom Duties and Taxes are the Responsibility of the Buyer in their Country
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