[sdiy] trying to understand amplification of an electret mic element

[ASSI]

On Tuesday 06 September 2011, dan snazelle wrote:
> However, with these microphone elements, things are all weird.

You don't say what you have...
 
> I started off as I understand you are supposed to by connecting the
> element to a 9v source through a 1k resistor. i tied the other end to
> ground. I took the signal out through a .1uf cap.

That would be correct for most electret mics with built-in pre-amp (not for 
all).  You might either have just the electret element without a pre-amp or 
one that has has different requirements for the supply of the pre-amp.


HTH,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

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