Transmitter Circuit

This Long Range FM Transmitter Circuit (2km) works like small radio station in one box. Put music or talk in mic and it sends sound far in air, farther than normal Bluetooth speaker. It is good for small community radio, wireless speaker in big garden or playing music for people near home. But in some […]

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 […]

Simple Mobile Phone Signal Jammer Circuit is device that stop signal between phone and tower. It does this by using same radio frequency like phone and to make communication not to work. This small circuit can block call and message on 3G, 4G and also old network. Three main part inside jammer: First is the […]

Wireless power is not a new idea long time ago even Nikola Tesla try this! Now many things like phone, toothbrush and some medical stuff charge without wire. But still we can make it better. In this post we will show how to make a easy Simple Wireless Power Transmission Circuit with transmitter and receiver […]

This is one TV, Video Transmitter Circuit It can send video from DVD, camera, or other device to old TV in our house. We do not need big parts or hard things. Just small circuit and little care is all we need. This type of circuit is good for fun or learning. Circuit Working: Parts […]

Do anyone want try make its own small radio station? This post show how to build a easy and FM Transmitter Circuit (100 meters range) It works between 87.5 to 108 MHz on FM radio. Transmitter uses simple circuit with special transistor and antenna to send our signal. This one is different from other small […]