👉 A kinetophone is a musical instrument that uses sound waves to produce vibrations. It works by emitting sound waves from a bell or other resonant device, which then creates vibrations in the air and can be amplified through various means such as a diaphragm or reeds. The vibrations travel back down the tube of the phonograph, which can be used to record the sounds. Some kinetophones are electronic, with no physical components; others use acoustic elements like glass plates or metal plates