Make a Shake LED Flashlight
I was enlightened about this Battery Less wonder. This is a boon for rural areas and an emergency tool which depend only on your will and your tendons. I found this bright flash of...
Category: Schematics
The Radio Electronics Magazine
Radio-Electronics was an American electronics magazine that was published under various titles from 1929 to 2003.You can Read them all here. Radio-Electronics was aimed at electronics’ professionals such as radio and TV repairmen. And...
Circuit Exchange International
There are ten categories of schematics, a unified circuit analysis, design and theory page, and also a practical electronic section. The simulation section features the “TINA” and “Circuit Maker” programs. (this is a first...
G-switch timer – Vern Knowles
The timer is built using four small inexpensive CMOS integrated circuits. This allows it to run on just 3V from two small AAA batteries. U1 is a 74HC688 8-bit equality comparator. It compares the...
