Audio video transmitter am fm radio transmitters

When we started in electronics, the first thing I think most, is to assemble a transmitter. In my beginnings, my first transmitter is performed by using the local oscillator of a radio receiver, logando a range of 500 meters, in amplitude modulated.
If you like radio and TV broadcasts, here I include these audio and video transmitters (limited), FM and medium wave.  It is important to be careful regarding the transmission of radio signals, in many countries this is illegal, therefore these circuits are low power so as not to interfere with any radio or TV. These are so you can experience.