The following small circuit will create a DC output that may be nearly 2 times the supply voltage. A square wave input is necessary of adequate amount to switch T1 […]
20 Easy IC 555 Circuits for Students and New Hobbyists
In this post we learn how to build 20 simple IC 555 based application circuits which for many useful purposes. This post begins by looking at the 555 as the […]
Scrolling LED Clock Circuit
The scrolling LED clock detailed in this post produces a great timepiece by showcasing the numbers in a dot-matrix arrangement and scrolling the digits in a ticker-tape manner. Using this […]
Cold Cranking Ampere CCA Estimator Circuit
CCA is a specification utilized in the battery industry to determine a battery’s capacity to start an engine in freezing temperature ranges. In most cases, it is simpler to start […]
Simple Steps to Make PCBs at Home
Obviously it is necessary to have a printed circuit board (PCB) before constructing any of the projects described in this book, and building your own printed circuit board is a […]
Burp Sound Simulator Circuit
Originally the burp sound simulator circuit was built as quick lash up but because it was so popular, especially with children, it is still in everyday use. Exactly what it […]