Sylvania 12AU7 / ECC82
GREY LONG RIB PLATE | RING GETTER | MADE IN USA | NOS SINGLE
Long Rib Plate
Ring Getter
Amplitrex AT1000
Up for sale is a premium vintage Sylvania 12AU7 / ECC82, made in the USA. This NOS unit features the prestigious Grey Long Ribbed Plate construction. Audiophiles specifically seek out the “Long Plate” Sylvania for its ability to produce a moreexpansive soundstage and greater micro-detail than standard versions.
Precision tested on our 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 vintage stability.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2095001 | Triode 1 | 10.5 | 8.2 | 78.1% | 2200 | 1900 | 86.4% |
| Triode 2 | 10.5 | 8.6 | 81.9% | 2200 | 1800 | 81.8% |
⚠️ 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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