Improving the SNR of a mic

Bob Cain wrote:
> 
> 
> Michel Rouzic wrote:
> 
>> Any suggestiongs for a $10 microphone?
> 
> 
> Radio Shack sells a small electret capsule for about a third of that 
> which is of surprisingly good quality.  It requires a resistor, a 
> capacitor a battery and a cable with 1/8" plug on it.  The simple 
> circuit diagram used to be printed on the package that it comes in.

He has no soldering iron :-(
-- 
Engineering is the art of making what you want from things you can get.
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