Valvo ECC83 — Matched Pair
MADE IN GERMANY | SOLID DISC GETTER | DATE CODE ⊿2F4
Original Box
Matched Pair
Amplitrex AT1000
Available for purchase is a premium matched pair of vintage Valvo ECC83 (12AX7) preamp tubes, manufactured in Germany. These rare units feature the Solid Disc Getter and Grey Plate construction. Supplied in their Original Boxes, these tubes are highly coveted for their superior sonic performance and German build quality.
Tested and matched on the Amplitrex AT1000 digital laboratory tester, the results below utilize the Percentage Method against original factory design-center specifications (Ip = 1.2 mA / Gm = 1600 µMhos). This pair is ideal for high-fidelity stereo preamplifiers.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #1254001 | Triode 1 | 1.2 | 1.3 | 108.3% | 1600 | 1800 | 112.5% |
| Triode 2 | 1.2 | 1.1 | 91.6% | 1600 | 1700 | 106.2% | |
| #1254002 | Triode 1 | 1.2 | 1.2 | 100.0% | 1600 | 1700 | 106.2% |
| Triode 2 | 1.2 | 1.4 | 116.6% | 1600 | 1910 | 119.3% |
⚠️ Note: Custom duties and taxes are the responsibility of the buyer in their country.
Custom duties and taxes are the responsibility of the buyer in their country.
Support: [email protected] Precision Verified — NOS Audio Tubes
Reviews
There are no reviews yet