| Waveform Visualizer is a wall-mounted LED display that turns background noise into a clean, oscilloscope-style waveform. Built around a Rasp...
More about Circuits & Circuit Design (391)
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| Elektor projects don’t just invite readers to build: they spark innovation. Take the Mini Reflow Plate, originally featured in Elettronica I...
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| 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...
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| This fully analog, adjustable, medium-power symmetrical power supply contains no switching or digital components. It provides an output volt...
| This No-Silicon digital clock is a true nixie tube clock built with vacuum tubes and dekatrons — no microcontrollers, no chips, no transisto...
| Schaub-Lorenz Stereo 6000 is a reminder that “DIY audio” once meant serious mechanics, alignment, and proper bench work — not just wiring up...
| 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...
| DIY Ram-Tester checks vintage 16- and 20-pin DRAMs used in TI-99/4A, C64, Amiga, Atari and others. Fast tests, OLED display, upgradable firm...
| Build the Elektor Wordy Christmas Tree: a 3D PCB Christmas decoration with a Raspberry Pi Pico, 27 RGB LEDs, and multilingual glowing messag...
| Unlock smarter workouts with a programmable fitness timer that guides your reps, rest periods, and routines with intuitive tones and an OLED...