MULLARD ECC81 — Matched Pair (2 Pcs)
Laboratory Verified
Made in Great Britain
Grey Pate
Dual Triode
Amplitrex AT1000 Tested
Up for Sale is a premium matched pair (2 Pcs) of Mullard ECC81 (12AT7) dual triode valves. These are authentic Made in Great Britain units featuring the iconic Top Ring Getter and Grey Plate . Mullard ECC81s are world-renowned for their warm, lush tonal characteristics and exceptionally long life in Hi-Fi preamplifiers and guitar amplifiers.
Both tubes have been laboratory-tested on the Amplitrex AT1000 industrial tester. Results are calculated against factory specifications for the ECC81 (Ip = 10.0 mA / Gm = 5500 µMhos).
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 3518206 | T1 | 10.0 | 9.5 | 95% | 5500 | 5120 | 93% |
| T2 | 10.0 | 9.8 | 98% | 5500 | 5860 | 106.54% | |
| 3518261 | T1 | 10.0 | 7.4 | 74% | 5500 | 5180 | 94% |
| T2 | 10.0 | 8.6 | 86% | 5500 | 5500 | 100% |
Technical Note: 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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