Telefunken ECC82 / 12AU7
LONG RIB PLATE | RING GETTER | MADE IN GERMANY | MATCHED PAIR
Long Rib Plate
Matched Pair
Amplitrex Tested
Up for sale is a world-class matched pair of Telefunken ECC82 (12AU7) tubes, manufactured in Germany. These specimens feature the legendary Long Ribbed Plate and Ring Getter hallmarks. Telefunken tubes are internationally regarded as the gold standard for high-fidelity audio, prized for their surgical precision, neutrality, and exceptionally low noise floor.
Precision tested on our Amplitrex AT1000 digital laboratory system, the results below utilize the Percentage Method against original factory design-center specifications (Ip = 10.5 mA / Gm = 2200 µMhos). This pair offers the linear performance and detail sought after by critical listeners and collectors alike.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2330003 | Triode 1 | 10.5 | 8.0 | 76.2% | 2200 | 1700 | 77.3% |
| Triode 2 | 10.5 | 8.6 | 81.9% | 2200 | 1700 | 77.3% | |
| #2330004 | Triode 1 | 10.5 | 8.6 | 81.9% | 2200 | 1800 | 81.8% |
| Triode 2 | 10.5 | 9.3 | 88.6% | 2200 | 2000 | 90.9% |
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
Custom duties and taxes are the responsibility of the buyer in their country.
Support: [email protected] Precision Verified — NOS Audio Tubes
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