| A DIY square-wave source doesn’t need to be complicated. This compact 1992 design delivers 57 stable, TTL-compatible frequencies from a sing...
| A DIY square-wave source doesn’t need to be complicated. This compact 1992 design delivers 57 stable, TTL-compatible frequencies from a sing...
| Houseplants rarely die suddenly. They decline slowly, often because of inconsistent watering. If you’ve experienced this problem, check out...
| Precision picoammeter webinar: Join host Brian Tristam Williams in welcoming presenter Johannes Sturz for a practical look at ultra-low curr...
| Resonance, both mechanical and electrical, is a natural physical process that also affects electronic components. With loudspeakers, one of...
| Benchtop EMC testing gets very real when a cheap LM2596-style buck converter blows past conducted-emissions limits; this highlight shows why...
| Keeping lithium cells or batteries in spare parts boxes isn’t very practical if you can’t verify their efficiency or actual charge capacity....
| A CRT test pattern generator built around an ESP32 board makes it easy to check old TVs quickly, without hauling a console or other bulky ge...
| This episode of Elektor Engineering Insights focuses on bench-level techniques for evaluating audio amplifier performance using an oscillosc...
| 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...