We may receive a commission on purchases made from links. When undertaking DIY electrical projects at home, safety should always come first. Whether you're adding a dimmer switch, installing a new ...

Systematic methodology is the key to quickly and effectively troubleshooting control circuits. Even the most experienced troubleshooter must rely on a systematic troubleshooting process to solve ...

Low-power circuits commonly use transformerless power supplies. However, the use of earth grounds in many of these circuits creates a serious problem that is often ignored. The very popular Microchip ...

I have no brake lights on my 2006 Mazda5 van. It went thru inspection 3 months ago and I admit that I don't preflight so I'm not sure when it occurred. They work sometimes with the key off or on but ...

I'm visiting my in-laws for spring break and they're having some issues with their network setup. I'd like to fix it for them while I'm here (only 2 more days) but I'm frankly at a loss where to start ...

Because the wiring and the inputs and outputs (I/Os) are the most vulnerable elements in a system, be sure to locate and identify these elements in the problem circuit. Sometimes, the only way to test ...