Brimar ECC83 — Matched Pair
MADE IN ENGLAND | BLACK PLATE | RING GETTER
Black Plate
Ring Getter
Amplitrex Verified
Available for purchase is a premium matched pair of vintage Brimar ECC83 (12AX7) preamp tubes. Manufactured in England, these units feature the sought-after Black Plate construction and Ring Getters. Brimar is legendary for producing some of the finest British valves ever made, offering a distinct harmonic richness and clarity.
Precision tested on the Amplitrex AT1000, the results below are presented using the Percentage Method against original factory design-center specifications (Ip = 1.2 mA / Gm = 1600 µMhos). Both tubes show excellent health and strong transconductance, supplied in clean white boxes.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #1103001 | Triode 1 | 1.2 | 1.2 | 100.0% | 1600 | 1500 | 93.7% |
| Triode 2 | 1.2 | 0.9 | 75.0% | 1600 | 1400 | 87.5% | |
| #1100001 | Triode 1 | 1.2 | 1.3 | 108.3% | 1600 | 1500 | 93.7% |
| Triode 2 | 1.2 | 1.5 | 125.0% | 1600 | 1600 | 100.0% |
⚠️ Note: 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.
Support: [email protected] Precision Verified — NOS Audio Tubes
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