Piezo Buzzer in Vacuum Chamber Waves intuitive investigations students can run

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end pulleys/brackets

Piezo Buzzer in Vacuum Chamber Waves intuitive investigations students can runA modern replacement for the traditional Bell Jar and Ringer. An acrylic chamber houses a battery operated, high output piezo buzzer. When the end plates are attached and the unit connected to a vacuum pump no sound can be heard but the sound returns when the air is allowed back in.