| Before trusting that bargain-bin power adapter, make sure it’s not packing surprises. This DIY AC power adapter tester quickly identifies vo...
All items tagged with Circuits Circuit Design News and Circuits & Circuit Design (178)
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| The low-cost ESP32-C3 SuperMini modules feature a compact SMD antenna. However, the small antenna design greatly restricts the effective Wi-...
| Discover how a Raspberry Pi, a DDS module, and an ADC come together to form a powerful DIY RF sweep generator for RF testing. This compact s...
| Introduction to Electronic Filters is a new Elektor publication by Dr. Peter Dalmaris that teaches readers the principles and applications o...
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| The dynamic compression of audio signals is important for reducing signal peaks to avoid saturation of the output signal. The circuit presen...
| Discover how a two-terminal dimmer design offers efficient, precise control of LEDs, lamps, and heating elements without extra wiring. Pulse...
| Most multimeters struggle with accurately measuring very low resistances, but this DIY milliohm meter fills that gap. Designed to measure fr...
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| In audio circuits, virtual grounds offer an innovative alternative to switching signal lines. Instead of routing signals through a switch, t...
| Today, phone-connected front-door cameras and comms systems are ubiquitous. But they weren't as common just a few years ago. Here's a DIY sm...
| Straight out of the golden age of DIY electronics, the Digital Wooing Aid circuit turns TTL logic into tender words. It is nostalgia, nerdin...