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Eisco Labs Bell in Vacuum Jar - Acrylic, 4-6V DC

SKU PH0176CN8
Sold out
Original price $62.99
Current price $45.21
Out of Stock
Original price $62.99
Current price $45.21
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  • Acrylic bell jar
  • Electric bell operating on 4-6V DC
  • Requires a vacuum pump (not included)
EISCO Bell in Vacuum Jar - Acrylic, 4-6V DC

(1) Bell Jar, (1) Electric Bell, (1) Rubber cork with terminals

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.

This requires a vacuum pump to work.