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Old 3rd September 2011, 03:11 PM   #1
diyAudio Member
Join Date: Sep 2010
Default home made mic issues

Hi there i followed this guide on how to build your own mic with a stereo jack on the end with which to connect to a sound card, but mine doesnt work.

I get no signal on my computer if i have it plugged in.

This is super easy to make but I did something wrong, any ideas of what to look at?

Please help this is super frustrating.
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Old 3rd September 2011, 03:24 PM   #2
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Go to this site: System Test and scroll down to the microphone section. In the schematic you will see that you need power for the mic to work. E
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Old 3rd September 2011, 03:47 PM   #3
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Location: Minneapolis, Minnesota, USA
Those mic capsules are easily damaged by heat, it's possible you may have damaged it when soldering, it happened to me on my first attempt.

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Old 3rd September 2011, 03:54 PM   #4
Svein_B is offline Svein_B  Norway
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I believe that some (older?) sound-cards provide a 5V DC voltage on the mic input for feeding a microphone, but many do not.

This circuit will work fine with a Panasonic capsule:
Click the image to open in full size.

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Old 17th September 2011, 12:49 AM   #5
Garyepe is offline Garyepe  China
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For Panasonic capsules maybe expensive for some body.
I think you can check Aliexpress. In this B2C website you can find a lot supplier who make MIC and MIC spare parts
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Old 17th September 2011, 02:08 PM   #6
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Their price is US$26. The Panasonic is $2.50 (Digi-Key)! E
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