Toshiba 12AX7A/ECC83 Matched Pair – Black Plate Top Ring Getter Made in Japan
NOS Matched Pair
New In Original Box
Black Plate
Top Ring Getter
New In Original Box
Black Plate
Top Ring Getter
Offering a laboratory-matched pair of New Old Stock (NOS) 2 Pcs Toshiba 12AX7A “Hi-Fi” dual triodes, Serial Nos. 1251001 and 1251002. These premium Japanese-made valves feature highly desirable Black Plates and Top Ring Getters. Recognized for their exceptional build quality and clean sonic profile, these tubes come in their Original Toshiba Boxes and have been precision tested on the Amplitrex AT1000.
- Type: 12AX7A / ECC83 Brand: Toshiba
- Condition: New in Original Box Construction: Black Plate / Top Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7A . Both tubes exhibit extremely strong, balanced performance, meeting or exceeding nominal specifications across all 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 |
|---|---|---|---|---|---|---|---|
| 1251001 | T1 | 1.2 | 1.2 | 100% | 1600 | 1600 | 100% |
| T2 | 1.2 | 1.2 | 100% | 1600 | 1700 | 106% | |
| 1251002 | T1 | 1.2 | 1.2 | 100% | 1600 | 1600 | 100% |
| T2 | 1.2 | 1.3 | 108% | 1600 | 1700 | 106% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
![Lot 100pcs.NOS NIB 7193 [2C22] RCA Made In U.S.A. Black Rods Support](https://i0.wp.com/www.nosaudiotubes.com/wp-content/uploads/2023/01/7193-03.jpg?resize=250%2C188&ssl=1)
Reviews
There are no reviews yet