Discover a creative way to amplify your smartphone's sound with this easy DIY project. Learn how to repurpose a stethoscope and plastic bottles to build a homemade phone speaker amplifier. Follow step ...

Learn how to build a DIY portable speaker using a car speaker, cardboard, and basic electronic components. This step-by-step project covers soldering a transistor amplifier circuit, wiring a 3.5mm ...

A DIY PCB fixture using split-Kelvin technique enables accurate, repeatable LCR measurements for low-impedance SMD components ...

An approach to design custom PWM filters using a visual basic application spreadsheet automatically launch a simulation to ...

Upgrade your traditional watch by adding apps, data, and notifications to your wrist. Here are the features to look for, along with the top smartwatches we've tested. I’m PCMag’s senior writer ...

Whether you want a simple budget PC, a productivity workhorse, or a screamer of a gaming notebook, our experts have done the heavy lifting to help you find the right laptop for the job. From the ...

From the March/April 2026 issue of Car and Driver. If you're a self-respecting do-it-yourselfer, nothing is more frustrating than having to pay someone else to finish a job you started. For a long ...