| 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...
| 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...
| Join Elektor and Baltic Lab for a hands-on webinar exploring the fundamentals of Electromagnetic Compatibility (EMC). Learn how to test cond...
| Need a reliable calibration source? Our featured circuit delivers precise voltages from -10 V to +10 V (20 µV steps) and currents up to 40 m...
| Build your own compact FM stereo test transmitter that generates ultra-low distortion audio and precise VHF signals using only simple CMOS l...
| Shannon’s sampling theorem states that a signal of frequency f can be fully captured by sampling at 2f. Modern PC sound cards support rates...
| Your circuit works, but is it compliant? In the following video, we dive into electromagnetic compliance (EMC) basics: radiated emissions, c...
| Check out this faster, smoother Super Servo Tester built on the RP2040. Test up to four servos or a quadcopter mixer with precision, manual...
| Build your own Variable Frequency Oscillator (VFO) with a Raspberry Pi Pico! This compact project delivers a tunable signal up to 15 MHz, en...