MULLARD ECC82 / 12AU7 – MATCHED PAIR (2 PCS)
Grey Plate
Top Ring Getter
British Made
Dual Triode ECC82 / 12AU7
New in White Box
Amplitrex AT1000 Tested
Up for sale is a matched pair (2 pcs) of premium vintage NOS Mullard ECC82 / 12AU7 dual triode vacuum tubes, manufactured in Great Britain and supplied in individual white boxes. World-renowned for their rich midrange warmth, lush musicality, and silky highs, these British-made tubes feature classic grey plates and top ring getter structures. A premier choice for upgrading hi-fi preamplifiers, line stages, phase inverters, and headphone amplifiers requiring 12AU7 / ECC82 / 6189 series tubes.
Both tubes have been fully tested on a precision Amplitrex AT1000 tube tester. Measured Plate Current (Ip in mA) and Mutual Conductance (uMhos) alongside percentage performance ratings relative to nominal factory reference specs (Reference: 10.5 mA / 2,200 uMhos) are detailed in the table below.
| Serial No. | Triode Section | Plate Current (Ip) | Mutual Conductance (uMhos) | ||||
|---|---|---|---|---|---|---|---|
| Ref Spec | Result | % Ip | Ref Spec | Result | % uMhos | ||
| SR.NO.3503259 | Triode 1 | 10.5 mA | 9.8 mA | 93% | 2200 | 2000 | 91% |
| Triode 2 | 10.5 mA | 9.4 mA | 90% | 2200 | 2000 | 91% | |
| SR.NO.3503300 | Triode 1 | 10.5 mA | 9.8 mA | 93% | 2200 | 2000 | 91% |
| Triode 2 | 10.5 mA | 10.0 mA | 95% | 2200 | 2000 | 91% | |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
Reviews
There are no reviews yet