To begin with, this Simple Regulated Adjustable Power Supply Circuit using IC 723 show how to make one simple power supply circuit, which can change voltage up and down. We can use one chip call LM723 with some people say IC 723, this chip is good and it take power from plug and makes it […]
Mini Projects
Mobile Phone Detector Circuit using Op-Amp
To begin with, in this Mobile Phone Detector Circuit using Op-Amp we will show how to make one circuit to detect mobile phones nearby. The circuit detects radio signals from an active mobile phone, helping to identify unauthorized phone usage in quiet places like meeting rooms and libraries. However, always check local rules and regulations […]
Simple Low Battery Indicator Circuit using Two Transistors
This article for Simple Low Battery Indicator Circuit using Two Transistors tell how to make small circuit for battery device. When battery goes low it uses only few parts like two transistors to turn ON one LED light; so this way we can know when to change battery before device stop working. Circuit Diagram: Parts […]
Simple Christmas Fairy Flashing LED Lights Circuit
With this easy guide for Simple Christmas Fairy Flashing LED Lights Circuit we are ready to jingle all way! Also, this circuit makes fun and happy pattern with blinking LED lights which look like small Christmas bulbs and also to make lights look more special we can put them in line or shape and use […]
Simple Electronic Stethoscope Circuit
This Simple Electronic Stethoscope Circuit teaches us about how to make one type of stethoscope circuit. Normal stethoscope uses tube to listen small sound from body like heart and lung but this electronic stethoscope uses small electric parts to make sound more clear and loud. The circuit also help doctors and nurses hear better what […]
Simple RF Field Strength Meter Circuit
To begin with, this Simple RF Field Strength Meter Circuit show how to make device to measure radio wave! Radio and mobile phone both use radio wave and this signal we cannot see, also this thing are helpful for radio fans, engineers and new people. Also, they can check how strong signal is in different […]