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 […]
Transmitter Circuit
Simple Mobile Phone Signal Jammer Circuit
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 […]
Simple Li-Fi Transmitter Receiver Circuit
Think internet is like a light and not a radio wave, then this Simple Li-Fi Transmitter Receiver Circuit do the same thing like that. This article tell how to make simple Li-Fi system to send and get data using light. Here, transmitter uses bright LED and normal transistor to send signal and receiver catch signal […]
Simple Wireless Power Transmission Circuit
Wireless power is not new idea, but long time ago even Nikola Tesla tried 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 […]
TV, Video Transmitter Circuit
This is one TV, Video Transmitter Circuit and 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, so this type of circuit is good for fun and also for […]
FM Transmitter Circuit (100 meters range)
Do anyone want to try make its own small radio station?, then this post can help, this post show how to build a easy and FM Transmitter Circuit (100 meters range) which works between 87.5 to 108 MHz on FM radio. Transmitter uses simple circuit with special transistor and antenna to send our signal, but […]