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DIY mic mixer question
DIY mic mixer question
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Old 30th July 2008, 10:59 PM   #1
K Oscar is offline K Oscar  Netherlands
diyAudio Member
Join Date: Jul 2008
Default DIY mic mixer question


I'm new to this and I don't think this is a hard thing to figure out, but I can't figure it out.

I wanted to build a 4 channel microphone mixer for use with electret microphones.
I wanted to use this circuit diagram:

My questions:

If I need a fourth channel can I just add an extra input (input, Resistor and Pot)?

If I use this mixer do I still have to battery power the electrets like this:
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Old 30th July 2008, 11:05 PM   #2
wakibaki is offline wakibaki  United Kingdom
Join Date: Jan 2008
1. Yes

2. Yes


Don't expect fantastic performance, the 741 isn't very good and the circuits aren't very sophisticated.
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Old 31st July 2008, 11:27 AM   #3
K Oscar is offline K Oscar  Netherlands
diyAudio Member
Join Date: Jul 2008
I figured that the sound wouldn't be that great.

But thanks a lot!

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