Sylvania 5751 Gold Brand
PREMIUM QUAD (4 PCS) | GOLD PINS | SOLID DISC GETTER
GENUINE GOLD PINS
MADE IN USA
MATCHED QUAD
LOW NOISE / HI-FI
MADE IN USA
MATCHED QUAD
LOW NOISE / HI-FI
Up for sale is a world-class matched quad of vintage Sylvania 5751 Gold Brand tubes. These are the highly desirable low-noise versions of the 12AX7, featuring Gold Pins and a Solid Disc Getter for ultimate signal purity. Sylvania’s Gold Brand series was built to the most stringent tolerances for high-reliability applications.
This quad has been precision tested on the Amplitrex AT1000 digital laboratory tester. The data below is calculated using the Percentage Method against original factory design-center specifications (Ip = 0.8 mA / Gm = 1200 µMhos).
| Serial No. | Section | Param Ip | Result Ip | % Ip (Emission) | Param Gm | Result Gm | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #424026 | Triode 1 | 0.8 | 0.7 | 87.5% | 1200 | 900 | 75.0% |
| Triode 2 | 0.8 | 0.7 | 87.5% | 1200 | 900 | 75.0% | |
| #424024 | Triode 1 | 0.8 | 0.7 | 87.5% | 1200 | 900 | 75.0% |
| Triode 2 | 0.8 | 0.6 | 75.0% | 1200 | 900 | 75.0% | |
| #424085 | Triode 1 | 0.8 | 0.6 | 75.0% | 1200 | 910 | 75.8% |
| Triode 2 | 0.8 | 0.5 | 62.5% | 1200 | 900 | 75.0% | |
| #424056 | Triode 1 | 0.8 | 0.5 | 62.5% | 1200 | 900 | 75.0% |
| Triode 2 | 0.8 | 0.5 | 62.5% | 1200 | 900 | 75.0% |
⚠️ Note: Custom duties and taxes are the responsibility of the buyer in their country.
Reviews
There are no reviews yet