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Name: Patrick
Status: Student
Age: 11
Location: N/A
Country: N/A
Date: N/A

I am building a radio receiver for a science fair project. I am unsure if I have all of the necessary items to build my receiver. I am following an experiment from a worldbook encyclopedia. The supply list does not indicate the type of diode needed and someone told me that I needed a crystal (the book does not mention a crystal.

Help if you can. list - balsa wood, cardboard tube, bare cooper wire, diode, nuts, bolts and washers, single-strand electrical wire, steel sire, paper clip, earphones. I really would like this experiment to work. If you have any information on building a radio receiver for my grade level please send. thank you

Don't worry about the "crystal." That's just the diode. If you've got a diode, you're fine. I made a little crystal radio from a kit when I was younger, and it worked pretty well. As for what diode to get, the folks at your local Radio Shack or electronics supply house should be able to help you.

Richard Barrans Jr., Ph.D.

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