Mullard ECC82 — Long Grey Plate
MATCHED QUAD (4 PCS) | MADE IN GT. BRITAIN | SOLID DISC GETTER
Solid Disc Getter
NOS Matched Quad
Amplitrex Verified
Offering an exceptional laboratory-matched quad (4 pcs) of vintage Mullard ECC82 (12AU7) valves. These premium British-made tubes feature the highly regarded Grey Long Plate and Solid Disc Getter. Mullard long plates are iconic for their warm mid-range and musical liquidity, making them a top-tier choice for high-fidelity audio.
All units are New Old Stock (NOS) in clean white boxes and have been fully characterized on the Amplitrex AT1000 digital laboratory tester. The data below uses the Percentage Method against original factory specifications (Ip = 10.5 mA / Gm = 2200 µMhos).
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #2048135 | T1 | 10.5 | 11.0 | 104.7% | 2200 | 2200 | 100.0% |
| T2 | 10.5 | 11.0 | 104.7% | 2200 | 2200 | 100.0% | |
| #2048077 | T1 | 10.5 | 10.6 | 100.9% | 2200 | 2200 | 100.0% |
| T2 | 10.5 | 11.2 | 106.6% | 2200 | 2200 | 100.0% | |
| #2048458 | T1 | 10.5 | 11.6 | 110.4% | 2200 | 2200 | 100.0% |
| T2 | 10.5 | 10.6 | 100.9% | 2200 | 2200 | 100.0% | |
| #2048369 | T1 | 10.5 | 12.2 | 116.1% | 2200 | 2200 | 100.0% |
| T2 | 10.5 | 10.8 | 102.8% | 2200 | 2200 | 100.0% |
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
Custom duties and taxes are the responsibility of the buyer in their country.
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