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EMC Mitigation: The Finer Points of Ferrite Beads - EngineerZone Spotlight - EZ Blogs - EngineerZone
What purpose does the small cylindrical module near the end of my laptop charger cable serve? - Quora
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EMC Mitigation: The Finer Points of Ferrite Beads - EngineerZone Spotlight - EZ Blogs - EngineerZone
![File:Astro AL 3 - board - STMicroelectronic L7812CV with 2 ferrite beads--4624.jpg - Wikimedia Commons File:Astro AL 3 - board - STMicroelectronic L7812CV with 2 ferrite beads--4624.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/1/10/Astro_AL_3_-_board_-_STMicroelectronic_L7812CV_with_2_ferrite_beads--4624.jpg)