Description
The GT-5AR4-R is Groove Tubes’ highest-output rectifier tube, engineered to deliver the current capacity that early higher-powered Fender amps (40 watts and up) relied on when they shipped with tube rectifiers. If your amp calls for a 5AR4-type rectifier and needs the extra headroom to keep up with a beefier power section, this tube is built for that job.
Rectifier tubes shape more than just the power supply — they influence how an amp responds under load. A tube rectifier introduces a bit of natural sag and compression as you dig in, which is part of what gives vintage Fender-style amps their touch-sensitive feel and dynamic breakup. The GT-5AR4-R is designed to supply that character while handling the higher voltage and current demands of larger tube-rectified circuits.
Every tube in the Groove Tubes lineup goes through certification testing before it ships, covering microphonics, hum, noise floor, and physical operating characteristics specific to musical instrument amplification — not just general electronics use. That means the tube in your hand has been vetted for the way guitar and bass amps actually stress a rectifier, not just bench-tested for generic specs.
- High-output 5AR4-type rectifier tube
- Originally specified for early higher-powered Fender amps (40 watts or more) with tube rectifiers
- Certified for microphonics, hum, noise floor, and physical operation for musical instrument use
- Limited warranty included
Whether you’re maintaining a vintage-voiced combo or reamping a higher-wattage head, this rectifier is a solid choice for restoring proper sag and output to tube-rectified power sections.
Reviews
There are no reviews yet.