Mullard ECC81 (12AT7) NOS Matched Pair
NOS Matched Pair
New In White Boxes
Double Mica
Top Ring Getter
New In White Boxes
Double Mica
Top Ring Getter
Presenting a laboratory-matched pair of Mullard ECC81 (12AT7) dual triodes, Serial Nos. 2824299 and 2824015. These Made in Great Britain (BVA) valves feature the classic Short Grey Plate structure with Double Mica spacers and a Top Ring Getter. Both units are New Old Stock (NOS) in clean white boxes and have been fully characterized on the Amplitrex AT1000 Digital Tube Tester.
- Type: ECC81 / 12AT7 Brand: Mullard
- Condition: NOS in White Boxes Construction: Double Mica / Grey Plate
- Origin: Made in Great Britain Testing: Amplitrex AT1000
High Performance Screening: Tested against reference parameters (Ip=10.0, Gm=5500) for the ECC81 series.
Amplitrex Characterized: These tubes show excellent balance between triode sections and are closely matched as a pair for high-end audio use.
Amplitrex Characterized: These tubes show excellent balance between triode sections and are closely matched as a pair for high-end audio use.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Triode | Parameter Ip (mA) | Result Ip (mA) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 2824299 | T1 | 10.0 | 10.2 | 102% | 5500 | 5400 | 98% |
| T2 | 10.0 | 11.0 | 110% | 5500 | 5800 | 105% | |
| 2824015 | T1 | 10.0 | 9.4 | 94% | 5500 | 5430 | 98% |
| T2 | 10.0 | 11.2 | 112% | 5500 | 5620 | 102% |
✉️ For technical inquiries, please Email us at [email protected]
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