Mazda ECC81 / 12AT7 NOS Single Tube
NOS Single
New In White Box
Grey Plate
Top Ring Getter
New In White Box
Grey Plate
Top Ring Getter
Offering a premium New Old Stock (NOS) 1 Pc Mazda ECC81 (12AT7) dual triode, Serial No. 4508001. This high-quality valve features Grey Plates, Double Mica construction, and a clear Top Ring Getter. The unit is housed in a new white protective box and has been laboratory tested on the Amplitrex AT1000 Digital Tube Tester.
- Type: ECC81 / 12AT7 Brand: Mazda
- Condition: New in White Box Construction: Grey Plate / Double Mica
- Origin: Made in Germany Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters (Ip=10.0, Gm=5500).
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | Percentage Ip | Parameter Gm uMhos | Result Gm uMhos | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 4508001 | T1 | 10.0 | 11.6 | 116% | 5500 | 6000 | 109% |
| T2 | 10.0 | 11.2 | 112% | 5500 | 5710 | 104% |
Email: [email protected] Precision Verified — NOS Audio Tubes
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