NEC ECC83 — Matched Pair
MADE IN JAPAN | SQUARE GETTER | CLEAR GLASS
Made in Japan
Square Getter
Matched Pair
Original Box
Square Getter
Matched Pair
Original Box
Up for sale is a precision-matched pair of vintage NEC ECC83 (12AX7) tubes, manufactured in Japan. These units feature the coveted Square Getter and clear glass construction. NEC tubes from this era are highly regarded for their low noise floor and transparent sonic characteristics.
Both tubes have been precision tested on the Amplitrex AT1000. The data below is calculated using the Percentage Method against original factory design-center specifications (Ip = 1.2 mA / Gm = 1600 µMhos). Both units are supplied in their original factory boxes.
| Serial No. | Section | Param Ip | Result Ip | % Ip (Emission) | Param Gm | Result Gm | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #4007010 | Triode 1 | 1.2 | 0.9 | 75.0% | 1600 | 1600 | 100.0% |
| Triode 2 | 1.2 | 0.9 | 75.0% | 1600 | 1600 | 100.0% | |
| #4007020 | Triode 1 | 1.2 | 1.0 | 83.3% | 1600 | 1600 | 100.0% |
| Triode 2 | 1.2 | 1.0 | 83.3% | 1600 | 1600 | 100.0% |
⚠️ Note: Custom duties and taxes are the responsibility of the buyer in their country.
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