The Microgroove

The microgroove record (what it was originally called when first produced in 1949) is played by placing a stylus, a highly polished and specially shaped piece of diamond mounted on the end of a fine rod called the cantilever, into the record groove.

The vibrations — caused by the force developed between the stylus tip and the three dimensional engravings on the sidewalls of the record groove — travel up the cantilever into the tonearm cartridge are turned into minute electrical impulses, which are then transformed into sound by the system amplifiers and speakers.

 

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