The Marshall Supa Fuzz is a legendary pedal whose core circuitry originates from the Tone Bender MK II, a fuzz pedal created by Gary Hurst. In the mid-1960s, the MK II circuit was mass-produced by Sola Sound in the UK, supporting the burgeoning British rock scene at the time and being supplied as an OEM product to several brands. This particular Supa Fuzz is a later model, produced after Marshall switched to in-house manufacturing. It features a logo that is raised and engraved into the casing. While there are some minor dents and signs of use on the casing, it is in relatively good condition. The control knobs and battery snap have been replaced. The transistors used in this "MK II" model include one OC75 and two OC71s, a familiar combination. It features a rich, distinctive germanium transistor tone, along with high-gain, extremely dense distortion. Accessories: None Heartman Vintage Guitars is a specialty store for vintage guitars and basses operated by Ikebe Musical Instruments.