Rectifier/Specialty. These pass every Groove Tubes premium certification for microphonics, hum, noise floor, physical operation and characteristics. Includes rectifier tubes, phase inverters and specialty kits specifically designed and tested for musical instrument amplification applications as noted.
Low-output rectifier tube originally used in early low power Fender amps with tube rectifiers (Champ, Princeton and Deluxe). May also substitute for a 5AR4 or 5U4 for lower output levels.