Hitachi 12AX7/ECC83 – 2-Hole Grey Plate Ring Getter Made in Japan
NOS Single Tube
New In White Box
2-Hole Plate
Ring Getter
New In White Box
2-Hole Plate
Ring Getter
Offering a premium New Old Stock (NOS) 1 Pc Hitachi 12AX7 dual triode, Serial No. 4931001. This vintage Japanese production features 2-Hole Grey Plates and a Ring Getter. Renowned for their clean, detailed sonics and robust build quality, these Hitachi 12AX7s are a favorite for high-fidelity audio applications. This unit is supplied in a New White Box and has been precision characterized on the Amplitrex AT1000.
- Type: 12AX7 / ECC83 Brand: Hitachi
- Condition: New in White Box Construction: 2-Hole Grey Plate/Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7. This specimen shows a perfectly matched Amplification Factor Mu of 99.9 on both triode sections.
⚠️ 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 |
|---|---|---|---|---|---|---|---|
| 4931001 | T1 | 1.2 | 0.8 | 67% | 1600 | 1300 | 81% |
| T2 | 1.2 | 1.1 | 92% | 1600 | 1500 | 94% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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