electronic circuits

Hi If any one want a help in doing electronic projects or electronic
circuits join this group else you can visit this site www.techknowl.com

 

[gearhead]

On Apr 26, 10:48 pm, colorite...@gmail.com wrote:

Hi If any one want a help in doing electronic projects or electronic
circuits join this group else you can  visit this sitewww.techknowl.com

I looked at the "mosquito repellent" multivibrator that produces about
5kHz.
You would think mosquitos respond to extremely high freqz, but then I
googled mosquito hearing and got a couple links that show female
mosquito hearing peaks around 230 to 250 Hz.

http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1088611&blobtype=pdf

http://jeb.biologists.org/cgi/content/abstract/202/20/2727