We understand by
turntable, the devices intended to reproduce the acoustic information stored on
the records discs, giving a faithful electrical signal reflecting the sound
that was recorded on the disc.
Its main elements are
three:
a) Platter intended to support the disc and rotate it around its own axis and
on a horizontal plane (there is some exception to this condition of
horizontality). Its movement is achieved by means of an electric motor and a
transmission system between the motor shaft and the plate itself.
b) Tone arm is named for its elongated shape in order to follow the movement of the disc furrow to furrow from the periphery to the center.
c) Cartridge or element
that translates in electrical signal the information contained in the furrow, a
signal that then passes to the amplifier stage, where it will reach the level
required to exit a loudspeaker and thus reproduce the acoustic message that was
recorded on the disc.
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