RWN ECC82 — Black Plate Matched Quad
MADE IN GERMANY | BIG RING GETTER | HOLE BLACK PLATE
Hole Black Plate
Big Ring Getter
Amplitrex AT1000 Verified
Up for sale is a world-class matched quad of vintage RWN (Neuhaus) ECC82 tubes. These are the rare Hole Black Plate variants, manufactured with German precision. Known for their legendary durability and clear, detailed sonics, these “Neuhaus” valves are a significant upgrade over standard production 12AU7s.
This quad has been meticulously tested on the Amplitrex AT1000 digital laboratory tester. The results below follow the Percentage Method against original factory design-center specifications (Ip = 10.5 mA / Gm = 2200 µMhos). Every triode section in this set tests at nearly 100% or higher, ensuring a perfect match for high-fidelity stereo applications.
| Sr. No. | Section | Parameter 1p mAdc | Result 1p mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| #2027004 | T1 | 10.5 | 10.4 | 99.0% | 2200 | 2300 | 104.5% |
| T2 | 10.5 | 10.6 | 100.9% | 2200 | 2300 | 104.5% | |
| #2027008 | T1 | 10.5 | 10.4 | 99.0% | 2200 | 2300 | 104.5% |
| T2 | 10.5 | 10.4 | 99.0% | 2200 | 2300 | 104.5% | |
| #2027011 | T1 | 10.5 | 10.4 | 99.0% | 2200 | 2300 | 104.5% |
| T2 | 10.5 | 10.4 | 99.0% | 2200 | 2200 | 100.0% | |
| #2027015 | T1 | 10.5 | 10.4 | 99.0% | 2200 | 2300 | 104.5% |
| T2 | 10.5 | 10.4 | 99.0% | 2200 | 2260 | 102.7% |
⚠️ Note: Custom duties and taxes are the responsibility of the buyer. Extended area surcharges may apply to remote locations—please confirm before checkout.
Note: Custom duties and taxes are the responsibility of the buyer in their country.
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