| Keeping lithium cells or batteries in spare parts boxes isn’t very practical if you can’t verify their efficiency or actual charge capacity....
More about Test & Measurement (426)
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| A CRT test pattern generator built around an ESP32 board makes it easy to check old TVs quickly, without hauling a console or other bulky ge...
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| According to Shannon’s sampling theorem, it is sufficient to sample a signal of frequency f at a rate of 2f in order to capture all of its i...
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| Not only since the total power outage on the Iberian Peninsula last spring has the quality of electrical power supply come into the public e...
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| The advantages of using an adjustable DC load for power supply testing are clear: There is no need to work with a collection of different lo...
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| Compact power supplies are becoming increasingly popular among electronics enthusiasts, makers, and professionals. In this review, we explor...
| Elektor 2025 review: Looking back at a year of projects and articles that assumed something unfashionable: that they would actually be built...
| This episode of Elektor Engineering Insights focuses on bench-level techniques for evaluating audio amplifier performance using an oscillosc...
| A blast from the Elektor archives: this clever 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load...
| Before trusting that bargain-bin power adapter, make sure it’s not packing surprises. This DIY AC power adapter tester quickly identifies vo...