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I've been covering the engineering and maker communities for over a decade now, and it never ceases to amaze me when these communities come together to solve complex issues. Take for example the E-Nable Project. Engineers, Makers, and Citizen Scientists teamed up to create open-source, 3D printable prosthetics for children that anyone with a 3D printer and basic tools could create. Likewise, a new group on Facebook has been created to bring those same groups together to collaborate on designing ...
The blog post here is just a place to put files and diagrams related to an electret microphone element amplifier circuit that is intended for basic sound or speech applications. The circuit is based on requirements from  BigG  and analysis from michaelkellett. It was created as part of a discussion in the comments here: https://www.element14.com/community/message/289305/l/trying-to-understand-how-r-c-affect-an-audio-signal-when-used-in-a-… That discussion can be referred to, ...

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