DIY electret microphone - pre-amp circuit board

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JQbrother

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Hi, when I was glancing through the internet in search of the preamp circuit for my Primo em272z1 electret microphone project,
I found this commercial voltage booster circuit board on the China website (Taobao) which seems like a preamp circuit for electret.
Does anyone know how to use this? And is this suitable for the electret microphone?
 

Hi JQbrother,

I couldn't answer your questions, sorry.

(You might want to delete this question from the 'DIY' section, if that's possible, and re-post it in the 'elementary' or 'hobby' section, for example. Here in the 'DIY' section, members may not open your thread and read your question as they might think your post is about a completed hobby project you want to share.)

I hgope you can find the information you need to know.
 

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