Brimar ECC81 / 12AT7 – Black Plate Made in England
NOS Single
New In Original Box
Black Plate
Ring Getter
New In Original Box
Black Plate
Ring Getter
Offering a premium New Old Stock (NOS) Brimar ECC81 (12AT7) dual triode, Serial No. 2079001. This authentic British-manufactured valve features high-quality Black Plates and a Ring Getter. The unit is preserved in its original red and yellow Brimar/BVA packaging and has been fully characterized on the Amplitrex AT1000 Digital Tube Tester.
- Type: ECC81 / 12AT7 Brand: Brimar
- Condition: New in Original Box Construction: Black Plate / Ring Getter
- Origin: Made in England Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters.
Performance: This tube exhibits exceptionally strong emission, testing at 130% of factory specifications for plate current and over 120% for transconductance.
Performance: This tube exhibits exceptionally strong emission, testing at 130% of factory specifications for plate current and over 120% for transconductance.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mA) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 2079001 | T1 | 10.0 | 13.0 | 130% | 5500 | 6780 | 123% |
| T2 | 10.0 | 13.0 | 130% | 5500 | 6840 | 124% |
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