This Insect Repellent Circuit Diagram produces a high frequency sound coming to ultrasound and adjust P1 serves to calibrate the ideal sound to scare away certain types of insects. It is based on a stable multivibrator in which the frequency is made by the capacitors C1 and C2, which can be ceramic disc or plate, the resistors R2 and R3 and potentiometer P1.
The crystal is a type of transducer is piezoelectric, the current consumption of only approximately 7 mA ensures a good autonomy if the power comes from a 9 volt battery.
The crystal is a type of transducer is piezoelectric, the current consumption of only approximately 7 mA ensures a good autonomy if the power comes from a 9 volt battery.
Insect Repellent Circuit Diagram
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