Get my Guitar found the latest prices on the Groove Tubes GT-12AT7 (Single).

GT-12AT7 tubes pass every Groove Tubes premium certification for microphonics, hum, physical characteristics and function. Quite simply the best 9-pin triode preamp tubes you can buy – specifically designed and tested for musical instrument amplification and standard equipment on Fender® amps. Outstanding and consistent performance for mixing and matching to get a signature tone from your amp. Durable design that can be used as a phase splitter or driver tube. Excellent in vibrato or reverb circuits where consistent, high output power is desired. Can sub for a 12AX7 to lower gain and produce a slightly warmer tone. Groove Tubes® GT-12AT7 S Select (Single) | Groove Tubes GT-12AT7 (Single)