Forum Thread: Crystal Radio

Question, my science class is going to make a radio.

I have magnetic wire and we are making a coil about 5-6 inches long. I have the diode that you suggested. However I've read that old telephone ear pieces will work for the headset. I haven't completed the project because I just received my diodes but do you think the telephone ear pieces will work? I hoping my class can assemble everything on Monday and have some success but I fear that the earpiece will let them down after reading your article. By the way, thanks for the examples of how this worked. It made it easy to explain to my class and they at least understand the very basic idea behind how this radio works.

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