For "playing" gramophone records, devices specially designed for this purpose are used: gramophones, gramophones, in the future - electric players and electrophones
When moving along the record track, the needle of the player begins to vibrate (since the shape of the track, depending on the recorded signal, is uneven in the plane of the record along its radius and perpendicular to the direction of movement of the needle). The vibrations of the needle are transmitted either to the membrane, which directly reproduces the sound, or to the converter of mechanical vibrations into electrical vibrations (sound pickup), the signal of which is fed to the amplifier