Simple IC TDA2822 Stereo Audio Amplifier Circuit is small chip with stereo amplifier makes weak music sound go louder which is strong enough for speaker or headphone. However, despite using very little energy it still provides 250 milliwatts each side with good sound for small things like walkman, hearing aid or little stereo. So next […]
Hobby Circuits
Solar Powered Animal Scarer Circuit
First of all, this Solar Powered Animal Scarer Circuit is very simple and very useful project for farm, garden and home protection. To begin with, it use solar energy, so it save electricity and work in eco-friendly way. Moreover, it scare animals like cat, dog, monkey and birds by using flashing light or sound signals. […]
Simple DC Electronic Fuse Circuit
Is anyone sick of the fuse blowing? then this Simple DC Electronic Fuse Circuit can be helpful! DC electronic fuse circuit is like small hero for ones electronics, as it protects from big current going crazy. Old fuse? we break it then one may need new one, but this one? it uses smart components always […]
How to Build a Simple LED Circuit
This article teaches us How to Build a Simple LED Circuit; an LED is small special light that shine when to get electricity. Also, this project show how to join some parts together to make LED turn ON. Moreover, people use LED circuits in many things like torch lights, car back lights and even big […]
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. Also, this circuit is fun idea to make door more special and different. Circuit Working: Parts […]
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 […]