Mazda ECC82 / 12AU7
GREY PLATE | SMALL RING GETTER | MADE IN ENGLAND | NOS SINGLE
Thorn / British
Grey Plate
Amplitrex AT1000
Up for sale is a single premium Mazda ECC82 (12AU7) vacuum tube, New Old Stock in its original Thorn factory box. Produced in England, this tube features a high-quality Grey Plate construction and a Small Ring Getter. These British-made valves are highly regarded for their low noise floor and balanced, musical response.
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 displays excellent emission and transconductance.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2032004-A | Triode 1 | 10.5 | 12.4 | 118.1% | 2200 | 2540 | 115.5% |
| Triode 2 | 10.5 | 8.2 | 78.1% | 2200 | 1890 | 85.9% |
⚠️ 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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