| Make your analog breadboard experiments instantly audible with Elektor’s first analog T-board, featuring a compact class-D amplifier, DC/DC...
All items tagged with Circuits & Circuit Design and Circuits Circuit Design News (157)
| The 1541 Disk Drive Computer project turns a Commodore 1541 floppy drive into an interactive, KIM-1-style microcomputer without soldering on...
| Waveform Visualizer is a wall-mounted LED display that turns background noise into a clean, oscilloscope-style waveform. Built around a Rasp...
| 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...
| Need a Hall sensor? A strip of copper, a strong magnet, and an LM358 are all you need to explore the Hall effect hands-on. This experimental...
| Before trusting that bargain-bin power adapter, make sure it’s not packing surprises. This DIY AC power adapter tester quickly identifies vo...