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[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] design adds ...

Discover a creative way to amplify your smartphone's sound with this easy DIY project. Learn how to repurpose a stethoscope and plastic bottles to build a homemade phone speaker amplifier. Follow step ...

Inspired by many months of hours-long load shedding in South Africa, [JGJMatt] decided to make a portable speaker that can play tunes for hours on a single charge and even charge off the integrated ...

Details of a homemade iPod Hi-Fi system: After pricing everything out, I decided to build a single mono channel to see how it sounded. $100 for the amp, $100 for the speaker parts, $100 for wood (real ...

The recommended power source is a split power supply (±6 to ±15V). Dispelling one common misconception, note that the ± power supplies need not be equal in voltage. If unequal, the maximum output ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Half a century ago, vacuum tubes were very common in audio ...

First it was Personal Computers (PCs), then it was telecommunications, and now it is happening to the audiophile world: technology has shattered the cost vs. performance ratio for key pieces of audio ...

As soon as I have a work bench area, I’m going to start getting into this stuff. The idea of having a headphone amp that I put together all by myself is incredibly attractive to me for some reason.

Loudspeakers are in a class by themselves. No matter where you find yourself on the audio enthusiast spectrum, there is no doubt that people have very strong feelings about them. This article ...