How Does Phonograph Work? Working of Phonograph Explained with 3D Animation

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Transcript

00:00If you have used this, you must be quite old.

00:02This is a phonograph.

00:04In the last century, only rich people could afford it.

00:07So how can it play beautiful music without electricity?

00:11The phonograph was first invented by Edison in 1877.

00:15It mainly consists of three parts.

00:18The rotating spindle for placing records,

00:21the cartridge that moves on the record disc,

00:23and the horn assembly that amplifies the sound.

00:27The kinetic energy of the main shaft rotation comes from the internal spring motor drive.

00:33When the hand crank is turned, the spring can be tightened.

00:36In order to rotate the turntable at a constant speed,

00:39the energy released by the spring is transmitted to the turntable through the gear regulator.

00:45There is a stylus on the cartridge.

00:47It is usually made of hard and wear-resistant materials, such as diamond or sapphire.

00:53Pay attention.

00:54Its record is engraved with a spiral groove.

00:58This groove records the waveform of the sound.

01:01Through the width of the groove, the depth and path change with the sound.

01:06When the stylus is placed in the groove of the record, the record rotates.

01:10The stylus will slide along the groove,

01:13causing the stylus to produce corresponding vibrations.

01:17The vibration is transmitted to the speaker through the sound wall.

01:20The shape and material design of the speaker can amplify the vibration.

01:25In the end, it becomes the music we hear.

01:28Like and follow for more informative videos.

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