Up For Sale: 1 Pc 
Shipping Charges: $35
For bulk or quantity requirements, feel free to Email us atSylvania 12AU7A / ECC82
GREY PLATE | RING GETTER | MADE IN USA | NOS SINGLE
Grey Plate
NOS Original Box
Amplitrex AT1000
Up for sale is a premium vintage Sylvania 12AU7A (ECC82), precision-engineered in the USA. This unit features the classic Grey Plate and Ring Getter construction, highly prized for its longevity and clean, balanced sonics in both high-fidelity and guitar preamps.
Precision tested on the Amplitrex AT1000 digital laboratory tester, the results below utilize the Percentage Method against original factory design-center specifications (Ip = 10.5 mA / Gm = 2200 µMhos). This tube shows excellent section balance and strong transconductance.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2489001 | Triode 1 | 10.5 | 10.8 | 102.8% | 2200 | 2200 | 100.0% |
| Triode 2 | 10.5 | 10.4 | 99.0% | 2200 | 2100 | 95.4% |
⚠️ 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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