| 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...
All items tagged with Test Measurement News and Circuits & Circuit Design (61)
| Unlock smarter workouts with a programmable fitness timer that guides your reps, rest periods, and routines with intuitive tones and an OLED...
| 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...
| Most multimeters struggle with accurately measuring very low resistances, but this DIY milliohm meter fills that gap. Designed to measure fr...
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| PCB design is not just about getting the circuit to work. A professional design balances electrical performance, manufacturability, EMI comp...
| Build your own compact FM stereo test transmitter that generates ultra-low distortion audio and precise VHF signals using only simple CMOS l...
| Measuring tiny differences in high-voltage circuits usually requires specialized differential test probes, which are often expensive. Fortun...
| Microcontrollers may dominate today’s stepper motor projects, but there’s a certain charm in driving them with pure CMOS logic. This no-firm...
| With just four components, you can assemble a simple inductance meter on a small piece of prototyping board. While you’ll need a power suppl...