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Have effective are electronic mosquito repealer circuits?

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EcraZ

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mosquitos

Dows anyone have an electronic mosquito repeller circuit. how effective are these circuits
 

hi,

i had one but need to find it out. need some time.

anyway, here is a simple program that use your pc speaker to generete sound to function as a mosquito repeller. you may try this software to verify the efficiency.

wisely
 
Mosquitero

Here is a very simple mosquito repeller circuit, you have to adjust: P1 to adjust for a change the time of activation and P2 to adjust the oscillation frequency (14.5 - 15KHz)
 
i don't see any attachments please :!:
 

Critter Ridder - Ultrasonic Sound Generator
 

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