Brimar ECC82 (12AU7) — Matched Pair
GRADE: GOLD SERIES | LABORATORY VERIFIED | NOS/VINTAGE STOCK
Grey Plate Construction
British Engineering
Amplitrex AT1000 Digital Testing
Offered here is a precision-matched pair of vintage Brimar ECC82 / 12AU7 vacuum tubes. These British-made classics feature the desirable Grey Plate structure and Top Ring Getter, providing the smooth, detailed soundstage characteristic of premium Brimar production.
Both tubes have been thoroughly analyzed on the Amplitrex AT1000 digital tester. Following our Percentage Method, the results below show how each triode section performs relative to the 100% factory design-center specifications for this tube type (Ip = 10.5mA / Gm = 2200 µMhos).
| Serial No. | Triode Section | Parameter Ip | Result Ip | % Ip | Parameter Gm | Result Gm | % Gm |
|---|---|---|---|---|---|---|---|
| #4328001 | Section 1 (T1) | 10.5 | 6.6 | 63% | 2200 | 1700 | 77% |
| Section 2 (T2) | 10.5 | 5.8 | 55% | 2200 | 1600 | 73% | |
| #4328002 | Section 1 (T1) | 10.5 | 9.9 | 94% | 2200 | 2300 | 105% |
| Section 2 (T2) | 10.5 | 8.7 | 83% | 2200 | 2100 | 95% |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
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