This used Catalinbread Formula 5F6 Effect Pedal is in excellent condition and delivers classic tweed Bassman-style overdrive in a compact, durable stompbox. Designed to authentically capture the rich tone and dynamic response of vintage tube amps, the Formula 5F6 features Volume, Tone, and Gain controls for sculpting everything from subtle grit to full-on drive with smooth breakup. With true bypass switching and top-mounted jacks, it's pedalboard-friendly and built to perform. Whether you're after crunchy blues leads or warm rhythm tones, this pedal adds timeless character to any rig. Powered by a standard 9V DC power supply (not included).