Mullard 5U4GB Rectifier Vacuum Tube

The Mullard 5U4GB is a premium rectifier tube engineered for high-fidelity audio amplifiers and vintage equipment restoration. This NOS (New Old Stock) specimen delivers robust power supply regulation with low noise characteristics, making it ideal for demanding applications requiring stable DC output. Built to exacting British manufacturing standards, the 5U4GB offers superior reliability and tonal clarity compared to modern alternatives. Perfect for tube amp enthusiasts, audio engineers, and collectors seeking authentic vintage performance. Each tube is tested and ready for immediate installation. Comes with box.