When you get the call, “The motor won’t start,” you’d best have a logical and systematic plan in place to approach the problem. “Easter egging” just doesn’t work unless you happen to be very lucky!

Branch circuits are undoubtedly the most commonly installed circuits in both residential and non-residential applications. And, since they supply the equipment that utilizes the electricity, they are ...

If you are an electronic experimenter who cannot get his circuit working, this is for you. I really feel your pain as it brings back my own unpleasant memories – yes, we have all been there. Here are ...

Apple's power adapters for its laptops can suddenly stop working. Here are some options you can try to overcome this. Topher, an avid Mac user for the past 15 years, has been a contributing author to ...

Let’s face it: Diagnosing electric problems is a pain, to say the least. You can get far with a test light and your trusty digital multimeter, but you still might end up just throwing parts at the ...

The SureTrace™ Circuit Tracer Pro redefines what a circuit tracer can do. With numerical voltage readings, continuity testing, AC amperage readings, contactless tracing, and receptacle testing, it's ...

Relays usually are driven using optocouplers, which offer isolation between analog and digital grounds to ensure that switching currents in the relay coils do not affect the noise margin of the ...

We’ve already addressed an issue involving a Samsung Galaxy S8 that won’t turn on, now we have to tackle a similar problem but this time we’ll be troubleshooting a device that won’t turn OFF. It is ...