Crystal Radio!

Building radios is a very popular hobby, even over 100 years after it's invention! With this science kit, kids build their own working crystal radio then look for and pick up radio stations. In the process young 'ham-mers' learn how a radio works, how earphones work, and crystal diodes. Experiment with different antennas, different grounds, and identify radio stations. An earphone and antenna are included. This science educational toy is easy to assemble, no tools required, and works without batteries! You don't have to go back in time to relive the days of the first radio!