JE Labs

About JE Labs

JE Labs is a well-known DIY HiFi audio brand and resource run by Joseph Esmilla, focusing on the design and sharing of vacuum tube amplifier circuits, preamps, and other classic audio projects inspired by vintage HiFi. Established over two decades ago, JE Labs has become recognized for its open-source approach, especially the widely built JE Labs 300B single-ended tube amplifier and other retro-style home audio circuits. Their website archives technical articles, build guides, restoration advice, and in-depth explorations of both classic and modern tube audio. JE Labs is prominent in the DIY audio community for its approachable schematics and extensive technical commentary, making high-quality tube audio accessible to hobbyists worldwide.