NEC 12AX7/ECC83 NOS Matched Pair – Black Long Plate
NOS Matched Pair
New In White Box
Top Ring Getter
Black Long Plate
New In White Box
Top Ring Getter
Black Long Plate
Available for purchase is a premium matched pair of 2 pcs NEC 12AX7 dual triodes. These highly regarded Japanese Made valves feature the rare Black Long Plate construction and a Top Ring Getter. Both tubes are in New Old Stock (NOS) condition and come in white boxes with laboratory-grade Amplitrex AT1000 test results.
- Type: 12AX7 / ECC83 Brand: NEC
- Condition: New in White Boxes Construction: Black Long Plate / Top Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
High Performance Screening: Tested against factory parameters for the 12AX7 / ECC83 family.
Amplitrex Characterized: Each tube is fully measured for plate current (Ip), transconductance (Gm), Plate Resistance (RP), and Gain (Mu).
Amplitrex Characterized: Each tube is fully measured for plate current (Ip), transconductance (Gm), Plate Resistance (RP), and Gain (Mu).
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Triode | Parameter Ip (mA) | Result Ip (mA) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 4472001 | T1 | 1.2 | 1.2 | 100% | 1600 | 1800 | 112% |
| T2 | 1.2 | 1.8 | 150% | 1600 | 2200 | 137% | |
| 4472002 | T1 | 1.2 | 1.2 | 100% | 1600 | 1800 | 112% |
| T2 | 1.2 | 1.5 | 125% | 1600 | 2050 | 128% |
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