An optocoupler tester is a small device that helps verify whether an optocoupler is functioning properly or has failed. In labs and repair work, optocouplers often fail without clear signs. They may ...

The Arduino is a great way for hobbyists and pros alike to experiment with programmable objects, but it can be confusing for beginners without these tools.

The American audio company has unveiled a "no fuss" stereo amplifier for modern hi-fi systems.

The CI-ONE integrated PA + SPDT modules from Circuits Integrated Hellas (CIH) are small-form-factor Ka-band RF front-end ...

Via the Graham Slee Asscession, vinyl sounded much smoother and richer than it does via my NAD D 3020 V2 (that has a built-in pre-amp). Of course, the DX-5 is considerably more expensive than the NAD, ...

Burson’s Soloist Stellar is a $1,500 Class-A headphone amplifier delivering up to 8W of power, a dedicated low-noise IEM stage, and upgradeable op-amps for demanding headphones and sensitive wired ...

It's capable of driving a wide range of headphones and IEMs.

I had this idea of building my own bicycle lighting system totally personalized, the lights would have the exact lighting pattern I wanted and the shape I decide. That's why I started to build this ...

Guitarist and YouTuber Aaron Rash has been documenting his tonal quest for four years – now he’s discovered the amp that’s been driving him crazy ...

Last year, we brought you a story about the BhangmeterV2, an internet-of-things nuclear war monitor. With a cold-war-era ...

StormAudio has introduced a multichannel amplifier reinforcing the shift toward networked, software-driven AV system design ...