Open source stomp box from Z.Vex
"The basis for the Fuzz Factory is a traditional fuzz effect circuit using New old stock Germanium Transistors, as used on the Fuzz Face, the seminal device used by Jimi Hendrix and many others during the late 1960s/early 1970s. The Fuzz Factory innovates by use of internal feedback loops and component-level bias adjustments to achieve unprecedented control, or deliberate lack thereof, of the distorted signal.
Designed by electronic trial-and-error, closely tied to circuit bending, the controls of the Fuzz Factory are highly interactive, and represent a wide spectrum of tonal ability, often extending into self-oscillation and noise. Many musicians find the promise of near-infinite new sounds and textures inherent to the device to be inspiring to their music, and the Fuzz Factory has a well-known following among professional guitarists." Wikipedia
That is the standard Fuzz Factory that you can buy in the store at http://zvex.com, but after Zackary saw the demand and hackability need for this baby decided to go open source and give the much needed designs to the world so everyone can experiment and improve/invent with the Inventobox that is debuting at the National Association of Music Merchants (NAMM) show and will be a diy hacking kit that you can alter to make your perfect funky guitar pedal.
For the price of $400 you will get the Inventobox kit that contains a pedal with a blank circuit board, a set of modules that reproduce three signature Z.Vex sounds - the Fuzz Factory, the Super Hard-On and his Marshall-style tone stack plus all the wires, tools and spare parts needed to put them together. There’s also a $300 version that comes without the modules so users can build their own circuits.
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