| Whether you are designing, repairing, or testing audio and hi-fi gear, a reliable frequency counter is a must-have tool. This classic freque...
All items tagged with Circuits & Circuit Design and Test Measurement News (85)
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| Precision, high-performance A/D converters demand additional technical attention when it comes to interfacing and signal conditioning for va...
| Tired of hunting short-circuits with a magnifying glass? This clever circuit makes locating a PCB short fast and frustration-free. Build a s...
| Check out the latest installment of Elektor Lab Notes. We cover some of the newest projects on our workbenches, including interesting innova...
| 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...
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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...
| The 2025 Elektor Circuit Special is on the horizon, and we’re looking for innovative, original circuit designs to feature! If you’ve created...
| AC-powered devices are prevalent in residential, industrial, and commercial settings. Do you want a DIY-solution for determining when a fuse...