How to protect circuits from reversed voltage polarity!

In this video I’m going to show you a couple of ways to protect your circuits from backwards power connections. Let’s say you have a 12 volt power source like a battery and you want to power something. It doesn’t matter what it is. Let’s say it draws 2 amperes. When the battery is connected […]

Battery Spot Welder (CD Welder) || DIY or Buy

In a previous project video I showed you how to create a battery pack out of 18650 lithium ion batteries. Back, then I utilized a rather riskier and not recommended methods of connecting the battery cells together. By soldering the nickel strips directly to them. This can be dangerous because you heat up the battery […]

Transistor / MOSFET tutorial

In this tutorial I’m going to go over the basics of a popular transistor and show you how you can use it to control different gadgets. What is a transistor? A transistor is a device that allows you to use small changes in voltage to switch things on and off. They are kind of like […]