Toshiba 12AX7/ECC83 – Grey Plate Top Ring Getter Made in Japan
NOS Single Tube
New In Original Box
Black Plate
Top Ring Getter
New In Original Box
Black Plate
Top Ring Getter
Offering a premium New Old Stock (NOS) 1 Pc Toshiba 12AX7 “Hi-Fi” dual triode, Serial No. 4658001. This authentic Japanese-made valve features high-quality Grey Plates and a Top Ring Getter. Renowned for its smooth, musical characteristics and low noise, this tube is supplied in its Original Toshiba Box and has been precision characterized on the Amplitrex AT1000.
- Type: 12AX7 / ECC83 Brand: Toshiba
- Condition: New in Original Box Construction: Grey Plate / Top Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7 . This unit demonstrates exceptional performance, with transconductance readings exceeding nominal ratings 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 |
|---|---|---|---|---|---|---|---|
| 4658001 | T1 | 1.2 | 1.6 | 133% | 1600 | 2000 | 125% |
| T2 | 1.2 | 1.2 | 100% | 1600 | 1800 | 113% |
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