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Since Y2K, curates an archive of electronic circuit schematics, manuals, datasheets and more, for guitar and tube amplifiers.

Mar 2024: Public-side adverts offset operating costs. Contents still free but login required for full-access. Some materials removed from unlimited public access per copyright holders.

Schematic Heaven

    Tube Amp & Guitar Amp Schematics

Guitar Effects Pedals

Tube Books

Tube Data Sheets

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