| Never miss a blown fuse again! This ultra-simple four-component circuit ensures you’re instantly alerted when a mains fuse fails, using an a...
More about Circuits & Circuit Design (311)
| Discover the Mostronome, a 1975 electronic metronome that reimagined musical timing with its whistle-like tone. This vintage circuit proves...
| Check out the latest installment of Elektor Lab Notes. We cover some of the newest projects on our workbenches, including interesting innova...
| Raspberry Pi fans have long wished for a power button, and the Raspberry Pi 5 finally delivers. But what if you have an older model? This DI...
| Enhance your synth or guitar sound with dynamic signal distortion! This DIY audio FX unit cascades amplifiers for unique saturation effects,...
| Build your own budget-friendly resonance meter, a versatile RF test instrument capable of measuring frequencies from 100 kHz to 50 MHz. Orig...
| Monitor up to six temperature points from -240°C to +850°C with this 8051-based temperature monitor and logger. Ideal for industrial applica...
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| Back in 2024, we introduced a high-quality variable-frequency audio notch filter. Now, we present a high-performance audio frequency generat...
| Need a pro lab power supply? Power supplies are everywhere — from basic adapters to high-end lab equipment. But they often come with a hefty...
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| There are many scenarios where measuring low resistance values, even in the milliohm range, is essential. For instance, it can help pinpoint...