Vacuum tubes for antique radios and tube audio gear.
DIY site specializing in tube audio, vintage style guitar amps, mad science and all around DIY hooliganism.
Offers a range of drawings, photos of components and complete builds, downloadable manuals, and descriptions to build vacuum tube amplifiers.
Information on speaker building: how to build speakers, find drivers and a listing of projects.
Self-built guitar tub amplifiers. Showcases design and stories beyond tube amp building, effects pedal building, and related music projects.
Kristijan Kljucaric offers his blue-colored PC board (PCB) designs for high-end DIY projects supported by Pass Labs, including amplifiers, pre-amps, crossovers, and power supplies.
Description and photos of multi-amp PCB with three integrated amplifiers each PCB and 24 dB/Octave Linkwitz-Riley Electronic filters. Configurable as a bi-amp or tri-amp.
Passive 2-way crossover spreadsheet design tool. Models allow complex speaker impedance, acoustic target shapes, series or parallel designs, and impedance compensation circuits.
Information on HiFi electrostatic loudspeakers. Contains information on how to get started and build a basic panel.
Showcases the author's build of tube amplifiers, pre-amplifiers and restorations of tube radios.
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