| The Elektor MultiCalculator is more than just a calculator. It calculates binary, hexadecimal, and decimal values, measures light, temperatu...
Ton Giesberts (354)
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| Standard logic ICs such as the 4017, a 5-stage divide-by-10 counter, can be used in many applications instead of microcontrollers — for exam...
| Some clocks use the frequency of the mains voltage to keep accurate time. But what if a design is intended for a 50-Hz mains and doesn't...
| The WS2812D-F8 is a high-tech, digitally programmable 8 mm RGB LED that’s individually addressable in daisy chains of up to 255 devices. In...
| Most birds have not yet learned to communicate with us. The electronic Funny Bird bird takes a step in the right direction: When you whistle...
| For those who frown upon any shape or form of switched-mode power supply (SMPS) for the high-end Fortissimo-100 Power Amplifier, this projec...
| Back in 1984, Elektor published the “One-Armed Bandit” project. Here we enhance it and honor the design with a PCB and a handy kit.
| Need an alternative to a switched-mode power supply? This project yields a 500+ VA, linear, symmetrical voltage regulator marked by low drop...
| Getting older often means hearing high frequencies less good. The intent of this circuit is to compensate for this by using a steeper correc...
| Digital amplifier modules can now be bought for little money, but high-end enthusiasts typically turn up their noses at the sound. On the ot...