Mesa Boogie 5U4GB Rectifier Tube - lampa prosto...

Mesa/Boogie 5U4GB Rectifier Tube – vintage soul in a compact format The Mesa/Boogie 5U4GB is a premium-grade rectifier tube, an improved version of the classic 5U4. Designed for maximum reliability and authentic tone, this tube merges 1950s-inspired construction with modern durability and consistency. It delivers the legendary “sag” feel – a natural compression that responds dynamically to your playing, especially with overdriven guitar amps.

Product Features Improved version of the classic 5U4 rectifier tube Factory standard for new Mesa/Boogie amps with tube rectifiers Enhanced reliability and longer lifespan Delivers tight, vintage-inspired tone with natural compression Compact size – similar to 6L6 power tubes Responsive tone – classic sag and feel This tube brings that iconic “vintage sag” – a slight voltage drop under load that gives playing dynamics a more natural, elastic feel. Players describe this as a more “alive” response, with sweet attack and organic touch sensitivity. Whether you're into blues, rock or vintage-style cleans – this tube makes your amp breathe like it’s alive.

Ideal for modern and vintage amp designs Compatible with most amplifiers that support 5U4-type rectifier tubes, especially Mesa/Boogie amps. Thanks to its more compact format, it fits tighter spaces while preserving classic tone characteristics. It’s also suitable for boutique and vintage amp restorations.

Technical specifications Type: Rectifier tube Model: 5U4GB Brand: Mesa/Boogie Technology: Based on 1950s designs Sound: Vintage sag, natural compression Size: Compact (similar to 6L6 tubes) Compatibility: Mesa/Boogie amps, boutique & vintage tube amps Longevity: High durability and consistency Materials and build quality The 5U4GB features top-shelf internal components, robust structure and reinforced glass for stage-ready durability. It’s built to minimize microphonics, deliver stable performance, and survive the rigors of transport and gigging.

What’s in the box 1 × Mesa/Boogie 5U4GB rectifier tube (factory sealed) Original Mesa/Boogie packaging with shock protection Why choose the Mesa/Boogie 5U4GB? If you're looking for a premium rectifier tube with classic feel, modern reliability, and Mesa/Boogie-approved performance – the 5U4GB is a no-brainer. Trusted by guitarists worldwide and chosen as the factory tube for Mesa amps, it’s the top choice for authentic tone with dependable performance.