BRIMAR CV4003/12AU7WA — Matched Pair 2 Pcs
Type: CV4003 / 12AU7WA
Made in England
Top Ring Getter
Original Boxes
Amplitrex AT1000 Tested
Up for sale is a choice matched pair of vintage Brimar CV4003 premium dual triodes. This is the highly reliable, ruggedized military specification equivalent to the 12AU7WA / ECC82. Constructed with classic Gray plates and a Top ring getter, these vintage British-made valves are famous for bringing exceptional depth, warmth, and low-noise clarity to high-end audio preamps and amplifiers.
Both tubes are genuine New Old Stock (NOS) and come complete in their vintage original red/yellow Thorn A.E.I. Radio Valves boxes. This pair has been fully tested and screened on the Amplitrex AT1000 digital tube tester to ensure strong emission and excellent matching.
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 802337 | Triode 1 | 10.5 | 10.5 | 100.0% | 2200 | 2400 | 109.1% |
| Triode 2 | 10.5 | 11.6 | 110.5% | 2200 | 2500 | 113.6% | |
| 802748 | Triode 1 | 10.5 | 11.4 | 108.6% | 2200 | 2400 | 109.1% |
| Triode 2 | 10.5 | 11.8 | 112.4% | 2200 | 2500 | 113.6% |
About NOS Audio Tubes
Based in Mumbai, India, we are specialist suppliers of high-quality vintage vacuum tubes with an extensive historical inventory of approximately 300,000 valves. We serve audiophiles, restoration experts, and high-end audio manufacturers across the globe.
Note : Custom duties and taxes are the responsibility of the buyer in their country.
Note : We have more than 1000 Pcs
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