Before building your own radio , you need to know about topics given below. If you already know about them then skip that part and move directly towards the link of building radio.

What is radio?

History of Radio according to wiki

How radio works?

What is the difference between AM Radio and FM Radio?

How to build a radio?

1.Science Toys


2.Pdf files for making a Radio ( Download : Right click and save target as or save link as ) :

Boys life workshop Build a radio

Make your own Crystal Radio

Videos :

Learn to make FoxHole Radio

Related :
Electronics Project Ideas