| A transistor tester can be a handy addition to your electronics workbench. This versatile transistor tester design, first presented a decade...
More about Circuits & Circuit Design (367)
| Meet Sam Battle from "Look Mum No Computer"! The well-known musician and YouTuber joined Elektor Engineering insights to discuss vintage sy...
| The HU-053 is an inexpensive LC-Meter kit available online that measures capacitance, inductance, and frequency. It features easy-to-solder,...
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| In audio circuits, the innovative technique of virtual grounds provides a viable alternative to the traditional method of switching signal l...
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| This tiny circuit removes most of the lead vocal from any song. You just need a small audio transformer, four resistors, and a capacitor. A...
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| In an audio chain, it may be useful to have an insertion point for an additional signal-conditioning device, such as a dynamics compressor/e...
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| The popular ESP8266 and ESP32 development boards will not run for long from a single Li-ion cell. The on-board regulator is the problem and...
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| Moo boxes have stood the test of time. Let’s make one! This article details a DIY project using an ATtiny85 microcontroller and minimal hard...
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| If you need to connect an audio device featuring a single-ended output to a differential input, you may use this impedance adapter that will...
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| The fingerprint-readout function is widely used in high-tech devices such as notebooks, advanced keyboards, and automated access control, bu...