Sylvania 12AT7WA/ECC81 NOS Matched Pair – Military Grade Square Getter Made in USA
NOS Matched Pair
New In White Box
Triple Mica
Square Getter
New In White Box
Triple Mica
Square Getter
Offering a high-performance matched pair of New Old Stock (NOS) 2 Pcs Sylvania 12AT7WA dual triodes, Serial Nos. 2339015 and 2339008. These premium USA-made valves feature a ruggedized Triple Mica construction and Grey Plates for enhanced mechanical stability. Equipped with a Square Getter, they are housed in new white protective boxes and tested on the Amplitrex AT1000.
- Type: 12AT7WA (ECC81 Military Grade) Brand: Sylvania
- Condition: New in White Box Construction: Triple Mica / Grey Plate / Square Getter
- Origin: Made in USA Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters. These military-spec “WA” variants are engineered for low noise and long-term reliability in critical audio circuits.
⚠️ 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 |
|---|---|---|---|---|---|---|---|
| 2339015 | T1 | 10.0 | 9.2 | 92% | 5500 | 5550 | 101% |
| T2 | 10.0 | 10.0 | 100% | 5500 | 5530 | 100% | |
| 2339008 | T1 | 10.0 | 10.2 | 102% | 5500 | 5680 | 103% |
| T2 | 10.0 | 10.4 | 104% | 5500 | 5720 | 104% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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