Hitachi 12AX7 NOS Single – Made in Japan
NOS Single Tube
New In White Box
Grey Ribbed Plate
Double Mica
New In White Box
Grey Ribbed Plate
Double Mica
Offering a premium New Old Stock (NOS) 1 Pc Hitachi 12AX7 dual triode, Serial No. 4916001. This authentic Japanese-made valve features Grey Ribbed Plates, Double Mica spacers for superior mechanical stability, and a Top Ring Getter. Hitachi’s ribbed-plate 12AX7s are highly regarded by audiophiles for their balanced tonality and reliability. 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: Grey Ribbed Plate / Top Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7. This tube shows consistent triode balance and excellent gain characteristics, with a high Amplification Factor of up to 110.0.
⚠️ 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 |
|---|---|---|---|---|---|---|---|
| 4916001 | T1 | 1.2 | 0.7 | 58% | 1600 | 1100 | 69% |
| T2 | 1.2 | 0.8 | 67% | 1600 | 1100 | 69% |
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