TURNTABLES. TONE ARMS. ~ CLASSIC HI-FI EQUIPMENT

2017-06-29

TURNTABLES. TONE ARMS.

The mission of the reading arm is reduced to keeping the tip of the needle in the groove of the disc without giving any distortion or resonance. The arm is a high precision instrument. It basically has a vertical and horizontal movement that is performed around a horizontal and vertical axis respectively. This allows you to follow the groove throughout the length of the disc. As the force that moves the arm comes out of the support and guide that represents the groove, the arm must meet a number of conditions:

1) Maximum rigidity with minimum inertia and consequently low resonance frequency.

2) Softness in the joints of horizontal and vertical movement.

3) Minimum reading error

4) Null lateral thrust.

5) Longitudinal and lateral balance.

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