GT-12AT7 tubes pass every Groove Tubes premium certification for micro phonics, 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.
GT-12AT7 tubes pass every Groove Tubes premium certification for micro phonics, hum, physical characteristics and function. Quite simply the best 9-pin triode preamp tubes you can buy - specifically designed and tested for m...
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