Looking for that warm, vintage-style tone? The JJ 5U4GB Rectifier Tube is a top pick for a smooth, reliable power flow that amps up your sound. Perfect for breathing new life into vintage rigs or dialing in something special on a modern setup, this tube keeps things warm and full.

Specs:

• Tube Type: 5U4GB Rectifier
• Filament Voltage: 5V / 3A
• Max Plate Voltage: 450V – ideal for most amp circuits
• Max DC Output Current: 250mA – keeps it solid under load
• Construction: Dual-cathode, rugged design for long life and steady performance
• Sound Profile: Warm, full-bodied, with a hint of that classic tube sag we all love

So, if you're after genuine tube warmth and rock-solid dependability, the JJ 5U4GB's got the goods. Plug it in and hear the difference!