SIEMENS ECC81 — Vintage German Matched Pair
Grade: Gold Series
Laboratory Verified
Laboratory Verified
Top Ring Getter
Authentic Siemens Etched Codes
ECC81 / 12AT7 Family
Amplitrex AT1000 Verified
Authentic Siemens Etched Codes
ECC81 / 12AT7 Family
Amplitrex AT1000 Verified
Offering a high-quality matched pair (2 pieces) of vintage Siemens ECC81 dual triodes. These tubes feature the classic Top Ring Getter and are renowned for their exceptional German engineering, providing a transparent, detailed, and highly accurate sonic profile.
Both specimens have been rigorously tested on the Amplitrex AT1000 professional tube analyzer. With tight section-to-section matching, this pair is ideal for high-fidelity preamplifiers and critical audio stages where balance and low noise are paramount.
| Serial No. | Triode Section | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| #1698002 | Section 1 (T1) | 10.0 | 6.6 | 66% | 5500 | 3410 | 62% |
| Section 2 (T2) | 10.0 | 6.2 | 62% | 5500 | 3440 | 62.5% | |
| #1698001 | Section 1 (T1) | 10.0 | 7.6 | 76% | 5500 | 3940 | 71.6% |
| Section 2 (T2) | 10.0 | 6.0 | 60% | 5500 | 3000 | 54.5% |
Technical Note: Percentage calculations are based on standard factory specifications for the ECC81 family (Ip = 10.0mA, Gm = 5,500 uMhos).
Matched Metrics: Detailed data including Mu and RP verified on Amplitrex AT1000.
Email: [email protected]
Precision Verified — NOS Audio Tubes
Reviews
There are no reviews yet