How to Wire a Laptop's AC Adapter
You tote your laptop with you to the office, class or the local coffee shop to use their free Wi-Fi. In the process, you probably also bring along the power adapter to prevent shutdown from a low battery. This high level of use along with day-to-day wear and tear may eventually create a scenario where the power cord becomes damaged. Because laptop power cords and adapters are normally two-part affairs, repairing or replacing the cord is typically not a tricky proposition.
How to Wire a Low-Voltage Idiot Light
A low-voltage idiot light warns you when the voltage in a circuit drops to an unsatisfactory level. They can be used in a variety of circuits, so how you wire the light depends on what you are using it for. Before installing your own idiot light, you should be intimately familiar with the electrical system you will be working on. LED lights make ideal idiot lights, but because they use two prongs as leads, they can be difficult to wire and then mount. Using a shielded wire and then placing the LED in the threaded housing of a neon lamp indicator makes the LED much easier to work with.
How to Wire a Mini Jack for Headphones
Headphones are one of the most intensely personal audio accessories. From the tiniest earbuds to the largest traditional headphones, most listeners have a very distinct preference. Unfortunately, mini headphone plugs are fragile and not all headphones use them. You can switch from one size to another easily with a snap-on adapter or permanently install a new plug to fit your mini jack.