Mini project: Amplified electret microphone
Short project - long video. But it is more educational this time providing some info about analog handling of sound and where noise comes from when you try to record using your computer.

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EEVblog #611 - Electret Microphone Design

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Build Your First (Good!) Contact Microphone

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Wonderful facts about Electret microphones

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Trump Attends NBA Finals, Cries Election Fraud in California & Storms Out of Interview

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EEVblog #616 - How Microphone Phantom Powering Works

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My first serious ASIC project

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EEVblog #609 - Condenser Microphone Design Tutorial

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Let's build a voltage multiplier!

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Once You Understand it, You Will Think Everything Else is Silly - Toyota E-CVT

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How Good Does a DIY Microphone Sound?

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How Huawei Just Built an Impossible Chip

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Why Adam Savage Won't Trust USB Keys

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Making high quality DIY Mic is easier than you think

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Microscopes can See Video on a LaserDisc - Andonstar AD246S-P

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Energy from the Vacuum - 07 - Tesla's Impulse Technology - Cut

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The Surprising Flaws in 18650 Lithium-Ion Batteries

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Electret Microphones 101

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Electret Microphone Gain Adjustment Made Simple

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Street musician can't believe the guitar I just handed him

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