Mullard ECC82/12AU7 – Grey Long Plate / Ring Getter
NOS Matched Pair
British Made
Grey Long Plate
Ring Getter
British Made
Grey Long Plate
Ring Getter
Offering a matched pair (2 Pcs) of Mullard ECC82 dual triodes, Serial Nos. 3502001 and 3502007. These premium British Made valves feature the sought-after Grey Long Plate construction and a Ring Getter. Renowned for their warm, lush midrange and classic British “Mullard sound,” these tubes are highly coveted for high-end audio preamplification. These units are New in White Boxes and have been laboratory characterized on the Amplitrex AT1000.
- Type: ECC82 / 12AU7 Brand: Mullard
- Condition: New in White Box Construction: Grey Long Plate / Ring Getter
- Origin: Great Britain Testing: Amplitrex AT1000
Laboratory Characterization: Tested against industry standard 12AU7 parameters ($I_p=10.5$, $G_m=2200$). These specimens show consistent performance, with Serial 3502007 exhibiting a strong transconductance of 1940 uMhos on triode section T1.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mAdc) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 3502001 | T1 | 10.5 | 8.0 | 76.2% | 2200 | 1700 | 77.3% |
| T2 | 10.5 | 7.4 | 70.5% | 2200 | 1700 | 77.3% | |
| 3502007 | T1 | 10.5 | 8.2 | 78.1% | 2200 | 1940 | 88.2% |
| T2 | 10.5 | 7.0 | 66.7% | 2200 | 1790 | 81.4% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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