Used Catalinbread Blood Donor Effect Pedal

Used Catalinbread Blood Donor in great condition—an expressive analog harmonic tremolo and boost inspired by vintage brownface amps. Dial in tube-like warmth with controls for Volume, Intensity, and Speed, plus a Mix knob to blend the effect for anything from subtle shimmer to deep, pulsing swirl. Built in a rugged compact enclosure with standard 1/4" in/out jacks, true-bypass switching, and 9V DC center-negative power for easy pedalboard integration.