Mini recorder

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This topic has 1 reply, 2 voices, and was last updated 7 years, 1 month ago by Siddhartha A.

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August 9, 2018 at 1:46 pm #4958

ashok
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I ordered the material to build a micro voice recorder with playback. After soldering a few wires it works fine except the volume is very low. What steps would I take or what would I need to make the volume louder?

Thanks

Dan

December 19, 2018 at 8:34 am #14954

Siddhartha A
Participant

can try a pre-amplifier circuit like the one here – engineersgarage.com/contribution/designing-pre-amplifier-using-lm358-99
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