This article for 6V to 12V Converter Circuit (High Current) show how to make a helper circuit. It takes 6V battery and give 12V power. If we have motor or toy which needs 12V then this circuit can help make it work. Thing that need more power can use this circuit which gives more current […]
Touch Controlled Musical Door Bell Circuit
No more boring ding dong bell! This Touch Controlled Musical Door Bell Circuit show how to make doorbell which play small music tune. Just press a button and it rings a melody sound which we can choose which one. This circuit is fun idea to make door more special and different. Circuit Working: Parts List: […]
Automatic Lead Acid Battery Charger Circuit
This Automatic Lead Acid Battery Charger Circuit show how to make smart charger for car lead acid battery! With this charger no need to worry about overcharge. It will stop charging by itself when battery is full. It is good for things using car battery like UPS backup power. Circuit Working: Parts List: Category Item […]
Thunder Lightning Detector Circuit
This Thunder Lightning Detector Circuit teaches us how to make lightning detector, a tool used by storm chasers! Lightning makes special energy in sky. When storm come this circuit find that energy and give alert by light or sound. So person can go safe place before rain start. Circuit Working: Parts List: Category Item Quantity […]
Mobile Phone Detector Circuit using Op-Amp
In this Mobile Phone Detector Circuit using Op-Amp we will show how to make one circuit to detect mobile phones nearby. It can catch the radio signal from phone when phone is ON and it tells if someone using phone in quiet place like meeting room or library where phone are not allowed. But be […]
Spy Phone Bug Transmitter Circuit
This circuit for Spy Phone Bug Transmitter Circuit is like small secret listening thing. It can listen and record phone talk which people do not know. This type device is called bug or transmitter. It spy on people who talk, so using it is not a good idea. Also in some country this circuit maybe […]