Cheap Headphones |
Dismantled! Not reassembled! |
| Small Electronic |
This is an airplane headphone. Quality not too bad but it was worth showing its inside to you.
The very fragile membrane in the middle row is what vibrates and creates the sound. The vibration
is produced by the little copper coil that is attached to the membrane.
The coil is "floating" over the magnet (the last row) and when the current (which is modulated by the music)
varies, the coil moves up and down along the magnet and this very fast (up tp 20,000 times per second).
The theory behind is called theory of electro-magnetism.
headphone9.jpg |
headphone8.jpg |
headphone7.jpg |
headphone6.jpg |
headphone5.jpg |
headphone4.jpg |
headphone3.jpg |
headphone2.jpg |
headphone1.jpg |
headphone10.jpg |
headphone11.jpg |
headphone12.jpg |
headphone13.jpg |