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Image: github.com · A guitar processor for your computer, in the spirit of the Axe-Fx III - Rikarin/Cathode

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An open-source guitar amp and effects processor cloned with Claude

Cathode models amps and effects from their schematics using a Newton-Raphson circuit solver, written with Claude Opus as a free alternative to a pricey hardware unit.

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Credits

  • Reddit poster Rikarin Source ↗
  • Repository account Rikarin Source ↗

Earliest dated source: 25 Oct 2026

Code ↗

The full story

The poster, an amateur guitarist, wanted something like the Axe-Fx III but could not afford one, so they "vibe cloned" it using Claude Opus. It follows the same core idea: a Newton-Raphson electrical circuit solver, with amps and effects modelled from their actual schematics.

They say it works surprisingly well. It is free and open source under GPL-3.0, with the code on GitHub.

How it was done

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: I vibe-cloned popular guitar processorForum threadreddit.com
    Reddit poster: RikarinPosted 25 Oct 2026

    The maker's post on r/ClaudeCode.

    If it disappears: archived copy of Reddit: I vibe-cloned popular guitar processor (opens in a new tab)

  • The code: github.comCode or repositorygithub.com
    Repository account: Rikarin

    The project on GitHub.

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