| A few years ago, Elektor published a 30-V, 3-A adjustable benchtop power supply dubbed UniLab2. To keep the total outlay down, it had a rath...
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| When Leon Theremin built his now famous musical instrument, he only had valves at his disposition. Today we have the choice between analog a...
| Where many homegrown continuity testers are limited to a battery and a buzzer or maybe just an LED, this design uses a Wheatstone bridge ins...
| Benchtop power supplies with power transformers are heavy and expensive, especially when designed to supply a few hundred watts. Furthermore...
| New technologies often find applications in rather unexpected domains. Take for example LoRa, Sigfox and similar IoT technologies. While eve...
| SnapEDA is the biggest electronics parts library for circuit board design: they provide millions of free symbols and footprints to help you...
| At a time of digital photo cameras sporting many millions of pixels and colours and incredibly powerful image processing software, it's hard...
| A good part of humanity loses precious night rest as a result of snoring or snoring bed partners and/or roommates. The Elektor Snore Shield...
| Tired of counting the dots on dice? Then use this circuit instead. Its 7-segment display shows in an unambiguous way the value. Easy-to-buil...
| Wireless Bluetooth speakers and sound systems have quickly become very popular devices. Although very practical, the sound quality may not a...