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 […]

The circuit for a spy phone bug transmitter is a secret listening device. It has the ability to track and record phone conversations without the callers being aware of it. These devices are referred to as transmitters or bugs. Because these devices spy on peoples private conversations using them is wrong. Also this type of […]

A mobile phone jammer is a device that blocks the signal between the phone and the mobile phone tower. It does this by using the same radio frequencies as the cell phone to disrupt with communication. This can block calls and texts on a number of networks including 3G, 4G and even older versions. Usually […]

Wireless power is not an original idea, Nikola Tesla even experimented in it in the past! Many products including phones, electric toothbrushes and even certain medical equipment are now wirelessly charged. However there is always space for improvement. This post covers how to assemble a simple wireless power transmitter and receiver circuit using readily available […]

Have anyone ever wished to construct its own small television station? This article 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 855 MHz. […]

Is anyone Interested in starting its own little radio station? This post shows how to build a simple FM transmitter that works between 87.5 and 108 MHz on the FM dial. This transmitter uses a simple circuit with a special transistor and an antenna to broadcast your signal. It is different from other small transmitters because […]