Home Made Speaker - 7Yr Old Girl

Jillie makes a speaker with a CD case.

This was for Jillie's grade 2 science project on magnetism. During her research on magnets she discovered speakers and insisted on making one.

She did all the research herself. I (her dad) wound the first coil myself. Then we did some experiments to find something to turn into a speaker. We tried many speaker shaped things around the house. She is the one that had the CD case idea. A quick test with some tape and a couple magnets was a success.

The red coil in the video was wound by herself with a little help from me. It isn't easy to wind a coil without a proper form.

As you can see in the video she did the rest herself.

Yes she did solder the wires herself. I taught her to solder when she was 5. She needed to solder to build a robot we started together...but that's another video for another time.

The small circuit board has the music. It is from a musical toothbrush. The other circuit board is just a battery holder. We could have used any sound source but I wanted to use something that would fit inside the case. We sealed it up and she took it to school.

She is a bit congested form allergies in this video. That's why she sounds a bit funny.