BRIMAR CV4003 (Premium 12AU7 / ECC82) — Platinum Grade Matched Pair
Chrome Dome
Platinum Grade
Amplitrex AT1000 Tested
For sale is a perfectly matched pair of Platinum Grade Brimar CV4003 vacuum tubes. These are high-reliability, military-spec versions of the 12AU7/ECC82, featuring the iconic Chrome Dome, Grey Plates, and Top Ring Getters.
Both tubes come New in Original Box and have been carefully tested on our Amplitrex AT1000 to verify their high-performance status.
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 807502 | T1 | 10.5 | 11.4 | 108.6% | 2200 | 2300 | 104.5% |
| T2 | 10.5 | 11.2 | 106.7% | 2200 | 2290 | 104.1% | |
| 807724 | T1 | 10.5 | 11.0 | 104.8% | 2200 | 2200 | 100.0% |
| T2 | 10.5 | 11.4 | 108.6% | 2200 | 2300 | 104.5% |
About NOS Audio Tubes
We are professional specialists in high-quality vacuum tubes with industry roots dating back to the 1970s. With an inventory of approximately 300,000 valves, we utilize industrial-grade Amplitrex AT1000 equipment to provide accurate, transparent test data for audiophiles worldwide.
Note: Custom duties and Taxes are the Responsibility of the Buyer in their Country.
Support: [email protected]
NOS Audio Tubes — Mumbai, India
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