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The Singing Shoebox

Instructions for building a low-priced (~$5) loudspeaker -- great physics project for schools

Original Research Paper (Acoustical Society of America)

Supplies List

Build instructions

American Association of Physics Teachers Presentation

Tips and Tricks

  • You'll need an amplifier to get much sound out (especially if demonstrating to an entire classroom). I used the LP-2020A+
  • Watch out for abuse of hot glue
  • If their lid is attached, they'll need to cut it off
  • If the c clamps rattle, you can use some hot glue on them
  • Make sure they leave plenty of extra wire on both ends of the coil
  • I've used AWG 26 & AWG 13, and prefer 13 as it doesn't heat up after short use
  • The speakers make pretty fantastic headphones - just need a little soldering + a coat hanger

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