Record Needle, SEM

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Needle playing a record. Colored scanning electron micrograph (SEM) of the needle (stylus) of a record player in a groove on a record. A record is used to store sound. It is produced by a machine with a head which vibrates in time to the sound being recorded. This cuts a groove in the record which varies according to the vibrations. A needle can then reproduce these vibrations as it runs along the groove and these, when amplified, produce the original sound.  This is a stereo record.  The needle in contact with the record is a LP needle, or a long play needle designed for stero use.  The spair needle pointing up is a 78 RMP needle - not the different angles.  This record is designed for 45 RPM.
Needle playing a record. Colored scanning electron micrograph (SEM) of the needle (stylus) of a record player in a groove on a record. A record is used to store sound. It is produced by a machine with a head which vibrates in time to the sound being recorded. This cuts a groove in the record which varies according to the vibrations. A needle can then reproduce these vibrations as it runs along the groove and these, when amplified, produce the original sound. This is a stereo record. The...
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Filename: K13SEM-Needle-45stereo-A.jpg
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