Groove Tubes GT-12AY7 Select

Low-gain tube used in very early Fender® amps.

Can sub for a 12AX7 to lower gain and produce a slightly warmer tone. Great for harp or blues where softer, more compressed distortion at lower volumes is

desired. Medium/soft gain.

Preamp Tubes

These 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.