| Mains hum from loudspeakers isn’t always caused by bad wiring, poor cables, interference, or grounding issues. Sometimes the amplifier power...
All items tagged with Circuits & Circuit Design and Power Energy News (34)
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| Avoid unexpected shutdowns in your 9-V-powered projects with this simple low-battery indicator circuit. Using just a handful of components,...
| Elektor partners with oemsecrets to embed an electronic component search tool directly into articles. Engineers can quickly find, compare, a...
| Low-noise power for audio and sensors is easy to get “working” and hard to get quiet: in this Elektor Lab Talk #42 clip, Ton Giesberts shows...
| Ready to solder? This audio series delivers easy-to-build DIY circuits, beginner-friendly components, just enough electronics theory, and lo...
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| This article covers an extended, symmetrical version of an adjustable DC load. The design is suitable, for example, for testing the typicall...
| Precision picoammeter webinar: Join host Brian Tristam Williams in welcoming presenter Johannes Sturz for a practical look at ultra-low curr...
| A blast from the Elektor archives: this clever 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load...
| Before trusting that bargain-bin power adapter, make sure it’s not packing surprises. This DIY AC power adapter tester quickly identifies vo...
| Need a compact solar power regulation module for low-consumption systems? This solar cell voltage regulator is designed to sit between a sol...