Used B.K. Butler 911 Tube Driver Effect Pedal in good condition, offering legendary tube overdrive tones powered by a real 12AX7 tube for warm, creamy distortion. This classic pedal features controls for Gain, EQ, and Output, providing versatile tone shaping from subtle breakup to soaring leads. Known for its use by iconic guitarists like David Gilmour and Eric Johnson, the 911 Tube Driver delivers rich, harmonically complex sounds that respond dynamically to your playing. This unit shows moderate cosmetic wear consistent with normal use, but functions flawlessly. Runs on 12V AC power (adapter not included). A must-have for tone purists and players seeking authentic tube-driven saturation in a compact and studio-grade stompbox.