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

[Dan Snazelle]

Sorry i didnt say before....its a radio shack electret....it says to connect to 9v via a resistor




Sent from my iPhone

On Sep 6, 2011, at 1:04 PM, ASSI <Stromeko at nexgo.de> wrote:

> 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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