Siemens ECC82 / 12AU7 — Matched Pair
NOS GERMANY | SILVER PLATE | LABORATORY VERIFIED
Made in Germany
Silver Plate Construction
Top Ring Getter
Amplitrex Verified
Silver Plate Construction
Top Ring Getter
Amplitrex Verified
Available is a laboratory-verified matched pair of vintage Siemens ECC82 dual triodes. These Silver Plate valves, featuring a Top Ring Getter, are prized for their exceptional detail and low-noise performance in high-fidelity audio circuits.
Each valve has been tested on the Amplitrex AT1000. Using the Percentage Method, the data below represents performance relative to factory design-center specifications (Ip = 10.5mA / Gm = 2200 µMhos).
| Serial No. | Side | Param Ip | Result Ip | % Ip | Param Gm | Result Gm | % Gm |
|---|---|---|---|---|---|---|---|
| #5017003 | T1 | 10.5 | 8.0 | 76.2% | 2200 | 1700 | 77.3% |
| T2 | 10.5 | 8.4 | 80.0% | 2200 | 1900 | 86.4% | |
| #5017004 | T1 | 10.5 | 8.6 | 81.9% | 2200 | 2100 | 95.5% |
| T2 | 10.5 | 8.2 | 78.1% | 2200 | 1900 | 86.4% |
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