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EISCO Bell in Vacuum Jar - Acrylic, 4-6V DC

SKU PH0176CN8
  • Acrylic bell jar
  • Electric bell operating on 4-6V DC
  • Requires a vacuum pump (not included)

Demonstrate that sound requires air to travel through with the Bell in Vacuum Jar set. Slowly decrease the air inside and hear the sound disappear. Electric bell operates on 4-6V DC.

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