• 4 months ago
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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