Transmitter Circuit

This long range FM transmitter circuit is like a tiny radio station in a box. It can take your music or voice from a microphone and send it out over the airwaves much farther than a regular bluetooth speaker. This makes it great for things like community radio stations, wireless speakers for big backyards or […]

A ‘spy phone bug transmitter circuit’ is a secret listening device. It can pick up and send phone conversations without the people on the phone knowing. These devices are called ‘bugs’ or ‘transmitters.’ It is wrong to use these devices because they eavesdrop on peoples private conversations. It can also be against the law depending […]

A cell phone jammer is a device that blocks the signal between your phone and the cell phone tower. It does this by using the same radio waves as your phone, which messes up the communication. This can block calls and texts on different networks like 3G, 4G and even older ones. A cell phone […]

The idea of wireless power is not new Nikola tesla even experimented with it way back when! Today, we use wireless charging for all sorts of things, like phones, electric toothbrushes and even some medical devices. But there is always room for improvement. This article will show you how to build a basic wireless power […]

Have you ever wanted to build your own mini TV station? This guide is for hobbyists who want to make a simple transmitter to broadcast videos inside your house. The transmitter uses a special coil and capacitor to pick a channel between 37 and 50 on the old fashioned TV dial UHF band, 470 to […]

Want to make your own mini radio station? This guide shows you how to build a simple FM transmitter that works between 87.5 and 108 MHz on the FM dial. This transmitter uses a basic circuit with a special transistor and an antenna to broadcast your signal. It is different from other small transmitters because […]