A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition ...
Engineeringness on MSN
What Does a Diode Actually Do?
A diode is a tiny component with a powerful job—controlling the direction of electrical current. This video explains how diodes allow electricity to flow one way, block it the other, and protect ...
Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide demonstrates assembling an LED-diode cluster, connecting it to a capacitor for ...
OLED TVs are known for excellent visual quality, but also garnered an early reputation for panel "burn-in." These days, ...
The glow of Christmas lights has become one of the most recognisable features of the festive season, but the journey from ...
A new impact-based design turns gentle everyday motion into bursts of electricity, greatly boosting the power output of ...
A microscale brain implant, smaller than a grain of salt, has been developed. This wireless, battery-free device, powered solely by light, has successfully recorded brainwaves in mice stably for a ful ...
Rega’s new Mercury and Solis flagship amps showcase peak engineering, but with a $50K full-system buy-in and no network ...
Great Eastern FX has unveiled the latest limited edition stompbox in its Obsolete Devices series, and it is a distortion pedal inspired by the iconic hard-clipping performance of the MXR Distortion+ ...
A year ago, I’ve design reviewed an MCU module for CAN hacking, called TinySparrow. Modules are plenty cool, and even more so when they’re intended for remaking car ECUs. For a while ...
The usual input device for playing a synthesizer is the good old piano keyboard. However, you don’t have to stick to such ...
Combining Cor Van Rij's JFET test socket with two DMMs, a current limiter, switches and a wall wart yield a simple, accurate JFET tester.
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