MULLARD ECC81 — Matched Pair 2 Pcs
Made in Great Britain
Gray Plate
Amplitrex AT1000 Tested
Up for sale is a high-quality pair (2 pieces) of Mullard ECC81 twin triodes. These British-made valves feature the desirable Top Ring Getter and Gray Plate internal construction.
Both tubes are New Old Stock and have been precision-tested on our Amplitrex AT1000 to ensure they meet or exceed factory performance standards.
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 3518036 | T1 | 10.0 | 9.4 | 94.0% | 5500 | 5800 | 105.5% |
| T2 | 10.0 | 8.0 | 80.0% | 5500 | 5300 | 96.4% | |
| 3518045 | T1 | 10.0 | 9.8 | 98.0% | 5500 | 5860 | 106.5% |
| T2 | 10.0 | 8.2 | 82.0% | 5500 | 5470 | 99.5% |
About NOS Audio Tubes
We are professional suppliers of high-quality vacuum tubes with a specialized history dating back to the 1970s. Managing an inventory of over 300,000 valves, we utilize industrial-grade Amplitrex AT1000 equipment to provide accurate, transparent test data for the global audiophile and restoration community.
Note: Custom duties and Taxes are the Responsibility of the Buyer in their Country.
Note: WE HAVE MORE THAN 500 PCS
Support: [email protected]
NOS Audio Tubes — Mumbai, India
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