MULLARD ECC81 — Matched Pair (2 Pcs)
Top Square Getter
Made in Great Britain
Made in Great Britain
Top Square Getter
Gray Plate
Amplitrex AT1000 Tested
Gray Plate
Amplitrex AT1000 Tested
Available for purchase is a matched pair (2 pieces) of high-grade Mullard ECC81 twin triodes. These vintage valves are authentic British production, featuring the rare Top Square Getter and Gray Plate internal structure.
Both tubes have been tested on our Amplitrex AT1000 to ensure optimal performance against factory parameters.
| Serial No. | Test Triode | Target Ip mAdc | Result Ip mAdc | % Ip | Target Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 2820055 | T1 | 10.0 | 8.0 | 80.0% | 5500 | 4500 | 81.8% |
| T2 | 10.0 | 10.0 | 100.0% | 5500 | 4700 | 85.5% | |
| 2820151 | T1 | 10.0 | 9.2 | 92.0% | 5500 | 4580 | 83.3% |
| T2 | 10.0 | 8.6 | 86.0% | 5500 | 4490 | 81.6% |
About NOS Audio Tubes
We are professional specialists in high-quality vacuum tubes with industry roots dating back to the 1970s. With an inventory of 300,000 valves, we utilize industrial-grade Amplitrex AT1000 equipment to provide accurate, transparent test data for audiophiles worldwide.
Note: Custom duties and Taxes are the Responsibility of the Buyer in their Country.
Support: [email protected]
NOS Audio Tubes — Mumbai, India
![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