Mullard ECC83 — Rare Long Plate Pair
MADE IN GREAT BRITAIN | LONG PLATE | RING GETTER
Rare Long Plate
Ring Getter
Amplitrex Verified
Available for purchase is a premium matched pair of vintage Mullard ECC83 (12AX7) tubes. These are the highly desirable Long Plate versions, manufactured in Great Britain with the classic Ring Getter design. Long-plate Mullards are prized for their expansive soundstage, low noise floor, and unmatched harmonic depth.
This pair has been precision tested on the Amplitrex AT1000 digital laboratory tester. The results below follow the Percentage Method against original factory design-center specifications (Ip = 1.2 mA / Gm = 1600 µMhos). Both tubes exhibit solid emission and transconductance, making them ideal for high-end Hi-Fi or studio applications.
| Serial No. | Section | Parameter 1p mAdc | Result 1p mAdc | % Ip | Parametre Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| #2631003A | Triode 1 | 1.2 | 1.2 | 100.0% | 1600 | 1500 | 93.7% |
| Triode 2 | 1.2 | 1.1 | 91.6% | 1600 | 1500 | 93.7% | |
| #1172156 | Triode 1 | 1.2 | 1.0 | 83.3% | 1600 | 1500 | 93.7% |
| Triode 2 | 1.2 | 1.2 | 100.0% | 1600 | 1600 | 100.0% |
⚠️ Note: Custom duties and taxes are the responsibility of the buyer in their country.
Note: Custom duties and taxes are the responsibility of the buyer in their country.
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