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Consumer Electronics by S. P. Bali

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EXTRACTING THE MUSIC

There is only one way to extract the music and that is with a cartridge. A cartridge (Fig. 8.9) consists of three basic elements : the stylus, the cantilever, and the generating system.

1. The stylus : The stylus is the only part which makes contact with the record. A force must be exerted by the tonearm Fig. 8.10, to keep the stylus in the centre of the groove when the record is spinning.

 

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Fig. 8.8 Movement of the stylus in a stereo groove (a) Right-hand channel modulated. (b) Left-hand channel modulated. (c) Both channels modulated equally and in phase. (d) Both channels modulated equally but in opposite phase.

 

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