| Mains hum from loudspeakers isn’t always caused by bad wiring, poor cables, interference, or grounding issues. Sometimes the amplifier power...
More in Circuits & Circuit Design (97)
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| System check! Elektor wants to know: Should engineers learn analog, even if they do digital? What is the best way to learn analog electronic...
| Avoid unexpected shutdowns in your 9-V-powered projects with this simple low-battery indicator circuit. Using just a handful of components,...
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| High-frequency circuits have different demands than low-frequency designs like audio. Standard prototyping boards fall short for RF due to t...
| Explore tube amplifier circuits in depth, including distortion, SRPP circuits, mu-followers, and OTL configurations.
| A compact FM wireless microphone turns a simple electret capsule into a short-range transmitter tunable across the FM band. Built around two...
| A clever 1997 Elektor design shows how accurate RMS-to-DC conversion can be achieved using just two op-amps and a handful of components. Thi...
| The KiCad 10 release brings Windows dark mode, design variants, new importers, and a graphical DRC rule editor to the open-source PCB design...
| Powering sensitive electronics is about more than just providing the right voltage. How the voltage is delivered is also important. The Slow...
| It's refreshing to revisit circuits that solve real problems with just a few parts and some smart thinking. This simple 4093-based audio pea...