[sci.electronics] Help with microphones.

jrl1@ra.MsState.Edu (Robby La Farge) (05/16/91)

I have been teaching my self about amps and I have run into a small problem
I have built a amp using a opamp(741) for a preamp and a lm386 for a post amp
it worked fine until I hooked up my softcomm head set up to it.  I was really 
confused because it would work fine with the mike I got radio shack.  I found
out that the mike I got form shack was a piezo and the mike in my head set was a
electret.  I think the piezo works off of current and the electret works off of
capacitance, I am right in assuming that?  also how do I make the the electret
work with my circuit?
Thanks for any advice you can give me.
Robby LaFarge
jrl1@cc.msstate.edu

-- 
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* Robby LaFarge                 * What do mean pigs don't fly,                *
* jrl1@cc.msstate.edu           * You've just got to get him in the plane and *
* Mississippi State University  * he'll do the rest for you!                  *
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