Sylvania 12AT7WA/ECC81 NOS Matched Pair – Military Grade Square Getter Made in USA
NOS Matched Pair
Square Getter
Triple Mica
Military Spec
Square Getter
Triple Mica
Military Spec
Offering a high-performance matched pair of New Old Stock (NOS) 2 Pcs Sylvania 12AT7WA dual triodes, Serial Nos. 3289023 and 3289010. The “WA” designation signifies a ruggedized military-grade specification, designed for extreme durability and long life in demanding circuits. These USA-made valves have been laboratory tested on the Amplitrex AT1000 and are supplied in clean white protective boxes.
- Type: 12AT7WA/ECC81 Brand: Sylvania
- Condition: New in White Box Testing: Amplitrex AT1000
- Getter/Mica: Square Getter/ Triple Mica Construction: Ruggedized Military Spec
Amplitrex Characterization: Tested against factory reference parameters. Both tubes exhibit strong emission and mutual conductance, exceeding nominal specifications for superior performance.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Triode Triode | Parameter Ip (mAdc) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 3289023 | T1 | 10.0 | 10.2 | 102% | 5500 | 6460 | 117% |
| T2 | 10.0 | 9.8 | 98% | 5500 | 6460 | 117% | |
| 3289010 | T1 | 10.0 | 11.8 | 118% | 5500 | 6870 | 125% |
| T2 | 10.0 | 13.4 | 134% | 5500 | 7010 | 127% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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