Mazda ECC82 / 12AU7
PRECISION MATCHED PAIR | GREY PLATE | MADE IN CZECH REPUBLIC | NOS NIB
Czech Production
Grey Plate
Matched Pair
Up for sale is a premium matched pair of vintage Mazda ECC82 (12AU7) tubes, New Old Stock in their original factory boxes. Manufactured in the Czech Republic, these tubes feature high-quality Grey Plate construction and Small Ring Getters. Highly regarded for their detailed transparency and musical smoothness, they are an ideal upgrade for high-fidelity audio equipment.
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 pair has been hand-selected for excellent section-to-tube consistency.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2106001 | Triode 1 | 10.5 | 11.4 | 108.6% | 2200 | 2300 | 104.5% |
| Triode 2 | 10.5 | 12.8 | 121.9% | 2200 | 2500 | 113.6% | |
| #2106002 | Triode 1 | 10.5 | 11.0 | 104.8% | 2200 | 2200 | 100.0% |
| Triode 2 | 10.5 | 11.4 | 108.6% | 2200 | 2300 | 104.5% |
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
Support: [email protected] Precision Verified — NOS Audio Tubes
![Lot 100pcs.NOS NIB 7193 [2C22] RCA Made In U.S.A. Black Rods Support](https://i0.wp.com/www.nosaudiotubes.com/wp-content/uploads/2023/01/7193-03.jpg?resize=250%2C188&ssl=1)
Reviews
There are no reviews yet