AMPEREX ECC81 — Vintage High-Performance Valve
Grade: Gold Series
Laboratory Verified
Classic Amperex Tone
Laboratory Verified
Classic Amperex Tone
Top Ring Getter
Dual Triode ECC81 / 12AT7 Family
Amplitrex AT1000 Verified
Dual Triode ECC81 / 12AT7 Family
Amplitrex AT1000 Verified
Available for purchase is one authentic vintage Amperex ECC81 vacuum tube. This tube features the highly regarded Top Ring Getter construction, providing the classic detail and musicality that Amperex is famous for in high-end audio applications.
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. | Triode Section | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| #2138004 | Section 1 (T1) | 10.0 | 8.8 | 88% | 5500 | 4880 | 88.7% |
| Section 2 (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).
Matching Metrics: Precise Mu (Gain) and RP (Plate Resistance) data provided for every section.
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Precision Verified — NOS Audio Tubes
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