The development of the world of technology has been very rapid. So it takes an ability to contribute to these developments. Not only the development of the world of communications technology and information, technology in the field of electronics as the main factors that support the technology can experience the development in just a few months, especially electronic devices that are analog or digital. Making this tool, starting from drawing the scheme and then assembled into a series that can be used to repel mosquitoes of course. Mosquitoes are annoying, especially when the conditions are very disturbing us in our rest time at night, whether it is disturbed by the sound until the bite on our body. With this simple tool hopefully you can repel mosquitoes that exist in our homes.
How the tool works :
According to research, usually the bite is often a female mosquito while the female mosquitoes are not happy if approached by male mosquitoes, if not during the mating season.
This circuit produces high-frequency sounds resembling the sound of male mosquitoes. Therefore the female mosquito will leave.
Here is the circuit scheme :
Component :
R1=10k
R2=100 ohm 1/4watt
R3=680 ohm 1/4watt
D1=IN4001
P1=potentiometer linear
C1=0,01mf
Tr1=UJT2646
Tr2=BC548
Ls=tweeter
In making this tool is not easy, as for some obstacles that must be faced in the process of making good from the beginning to the end, such as when designing the layout taken from the electronic scheme which will be drawn on the PCB board.