| Houseplants rarely die suddenly. They decline slowly, often because of inconsistent watering. If you’ve experienced this problem, check out...
All items tagged with Circuits & Circuit Design and Test & Measurement (80)
| Precision picoammeter webinar: Join host Brian Tristam Williams in welcoming presenter Johannes Sturz for a practical look at ultra-low curr...
| Benchtop EMC testing gets very real when a cheap LM2596-style buck converter blows past conducted-emissions limits; this highlight shows why...
€5 (FREE for Members)
| The advantages of using an adjustable DC load for power supply testing are clear: There is no need to work with a collection of different lo...
| 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...
| Discover how a Raspberry Pi, a DDS module, and an ADC come together to form a powerful DIY RF sweep generator for RF testing. This compact s...
€5 (FREE for Members)
| Most continuity testers are very simple and therefore have simple capabilities. This design, however, is unique in several ways. Firstly, it...
| Build your own compact FM stereo test transmitter that generates ultra-low distortion audio and precise VHF signals using only simple CMOS l...
€5 (FREE for Members)
| Build your own Variable Frequency Oscillator (VFO) with a Raspberry Pi Pico! This compact project delivers a tunable signal up to 15 MHz, en...