New “Glowworm attack” recovers audio from devices’ power LEDs A new class of passive TEMPEST attack converts LED output into intelligible audio.

The lab power supply is an essential part of any respectable electronics workbench. However, the cost of buying a unit that has all the features required can be eye-wateringly high for such a seemi… ...

This article explores the age old question whether or not exotic power cords make a difference over the stock OEM cables supplied with your AV gear. Get the truth about power cords & cables here.

The circuit in Figure 1 can help if you must transfer dc power and audio over a pair of copper wires. One application for such a circuit is a low-cost door-opening system with speech input. The ...

An uninterruptible power supply (UPS) offers a simple solution: it’s a battery in a box with enough capacity to run devices plugged in via its AC outlets for minutes to hours, depending on your ...

Power-Supply Rail Rejection in Amplifiers The literature on power amplifiers frequently discusses the importance of power-supply rejection in audio amplifiers, particularly in reference to its ...

The venerable 3.5mm audio jack is in danger of being phased out. Here's what that means for smartphone and music enthusiasts.

Over the past few hours, owners of the Chromecast (2nd gen) and Chromecast Audio haven’t been able to Cast any audio or video content.

Apple AirPlay is a great for streaming wireless audio from an iPhone and now you can add it to almost any audio device using this Belkin SoundForm Connect AirPlay adapter.

FREETOWN — Sierra Leone's National Power Authority [NPA], which is responsible for providing the country with power, has deployed a new device that can detect faulty underground cables. The hope ...

2-wire IP distributor 4-port 2-wire cascade interfaces with device power supply 2 cascade interfaces for DS-KAD704Y, DS-KAD706Y & DS-KAD706Y-S series 6 interface indicators, 1 RJ-45 Interface, 1 Reset ...