Ultrasonic Mosquito RepellerCircuit by CD4017

  
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This is a simple ultrasonic mosquito repeller circuit diagram. The circuit is design on the theory that pests like mosquito can be repelled by ultrasonic frequency around (20KHz-25KHz). This ultrasonic mosquito repeller circuit is based on a single CMOS IC CD4017. C1, R1 & VR1 is used to adjust the output frequency.
Ultrasonic Mosquito RepellerCircuit by CD4017 - schematic




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