MIC PREAMP for PC speaker

A

avz

Member

• Apr 18, 2009

• #1

Hi all
I would like to connect a microphone to pc speakers that have a built in amplifier. to do that I need a preamp. can you recommend a simple circuit that will do?
Thanks.

 

Torben

Well-Known Member

• Apr 18, 2009

• #2

avz said:

Hi all
I would like to connect a microphone to pc speakers that have a built in amplifier. to do that I need a preamp. can you recommend a simple circuit that will do?
Thanks.

Click to expand...

What kind of microphone?


Torben

 

A

avz

Member

• Apr 18, 2009

• #3

Mic preamp

The simple dinamyc that is used with the pc

 

audioguru

Well-Known Member

Most Helpful Member

• Apr 18, 2009

• #4

A pc usually uses an electret mic.
You need a switch to disconnect the mic when the speaker is playing and disconnect the speaker when the mic is used to avoid acoustical feedback howling.

 

A

avz

Member

• Apr 18, 2009

• #5

Mic preamp

Yes, but before that I need the preamp.

 

audioguru

Well-Known Member

Most Helpful Member

• Apr 18, 2009

• #6

Here is a preamp circuit for an electret mic:

 

Attachments

• electret mic preamp2.PNG

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A

avz

Member

• Apr 19, 2009

• #7

Thanks. I'll do it