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2. Electret microphone - Wikipedia

   en.wikipedia.org/wiki/Electret_microphone

   An electret microphone is a microphone whose diaphragm forms a capacitor (historically-termed a condenser) that incorporates an electret. The electret's permanent electric dipole provides a constant charge Q on the capacitor.

3. Gerhard M. Sessler - Wikipedia

   en.wikipedia.org/wiki/Gerhard_M._Sessler

   First patent on foil electret microphone by G. M. Sessler and J. E. West (pages 1 to 3) From 1950 to 1959, Sessler studied physics at Universities of Freiburg , Munich, and Göttingen . He received his diploma in 1957 and his Ph.D. from the University of Göttingen in 1959.

4. Microphone - Wikipedia

   en.wikipedia.org/wiki/Microphone

   First patent on foil electret microphone by G. M. Sessler et al. (pages 1 to 3) An electret microphone is a type of condenser microphone invented by Gerhard Sessler and Jim West at Bell laboratories in 1962. [24] The externally applied charge used for a conventional condenser microphone is replaced by a permanent charge in an electret material.

5. Shop the latest Trends and Deals - AOL.com

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   Get lifestyle news, with the latest style articles, fashion news, recipes, home features, videos and much more for your daily life from AOL.

6. James West (inventor) - Wikipedia

   en.wikipedia.org/wiki/James_West_(inventor)

   First patent on foil electret microphone by G. M. Sessler and J. E. West (pages 1 to 3) West was born on February 10, 1931, in Farmville, Prince Edward County, Virginia as the elder of two children to Samuel Edward and Matilda West. He was born in his maternal grandfather's house because the local hospital would not admit Black people.

7. Electro-Voice RE20 - Wikipedia

   en.wikipedia.org/wiki/Electro-Voice_RE20

   The microphone came with a switch to tailor the mid-bass response, attenuating frequencies below 400 Hz with a mild high-pass filter. Like all premium microphones made by EV, it used EV's 1930s humbucker method of reducing electromagnetic interference by wiring a humbucking coil out of polarity with the microphone element coil.

8. The big-ticket items to bookmark for October Prime Day - AOL

   www.aol.com/big-ticket-items-bookmark-october...

   It has a 5K Retina display, a 12-megapixel ultra-wide camera and a studio-quality three-microphone array for crystal-clear video calls. Buy Now More computer and laptop October Prime Day deals

9. The best wireless headphones for seniors in 2025 - AOL

   www.aol.com/lifestyle/best-wireless-headphones...

   $75 at Amazon Earbuds are easily lost, too, but just try misplacing a full-size headphone. Below I've rounded up the best headphones for different kinds of users: audiophiles, budget shoppers, TV ...