Circuit Hacks

How to: Etch a Printed Circuit Board (PCB) with Acid

How to: Etch a Printed Circuit Board (PCB) with Acid

They will help you avoid pitfalls and get your project up and running fast. In this DIY episode, see how to etch a printed circuit board (PCB) with acid.  Circuit Boards, nearly every modern electrical device uses them, but how do you make your...
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Make a "Joule Thief" Circuit to Extract Battery Power

This week, Windell Oskay of Evil Mad Scientist Laboratories joins me to teach you how to make a super clever little circuit called the Joule Thief! The Joule Thief allows you to squeeze the life out of what most people think of as "dead"...
Simple LED Project: Knight Rider Circuit

Simple LED Project: Knight Rider Circuit

This is simple circuit to make LED Knight Rider project. There are using just only 6 LEDs and blinking like knight rider...