How to Build a Simple Radio Transmitter?
You can build a simple AM radio transmitter without it being too difficult. You need a crystal to start out. This should have a frequency of between 0.9000 and 1.2000 MHz. You’ll also need some wire and a male headphone jack. You might also want to get a breadboard or a circuit board. You can find more information at http://www.instructables.com/id/Make-a-s…