Despite the oldest solid state audio circuitry now qualifying for a pension and a bus pass where this is being written, the thermionic tube retains a foothold in the world of audio — cherished ...

[Simon] wrote in to tell us about a headphone tube amp that he just built. It is based on schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s ...

Self-taught boutique builder Charles Henry puts musicality first with his designs, winning fans including Grace Bowers and ...

First made in 1959, this is the best-selling tube amplifier of all time. Every product is carefully selected by our editors. If you buy from a link, we may earn a commission. Learn more Dynaco ...

Landreth's D25 might be a single-channel affair with old-school aesthetics but with six onboard virtual cabs, MIDI connectivity and switchable 25W/5W power it is all about modern functionality ...

EPC has used GaN transistors to create a high-power Class-D two-channel audio power amplifier design. Instantiated in evaluation kit EPC9192, it is capable of pushing 700W/channel into 4Ω (or 2Ω) or ...