Telefunken ECC82 / 12AU7
GREY RIB PLATE | RING GETTER | MADE IN GERMANY | NOS NIB
German Production
Grey Rib Plate
Amplitrex Tested
Available now is a premium Telefunken ECC82 (12AU7) vacuum tube, New Old Stock in its original factory box. This specimen features the sought-after Grey Ribbed Plate construction and Ring Getter hallmarks. Telefunken Germany is widely considered the gold standard for ECC82 production, prized for its 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 tube tests exceptionally strong, offering peak performance and long-term reliability.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #250015 | Triode 1 | 10.5 | 11.6 | 110.5% | 2200 | 2600 | 118.2% |
| Triode 2 | 10.5 | 12.0 | 114.3% | 2200 | 2700 | 122.7% |
⚠️ 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.
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