Electronic rodent killer, electronic mouse repellent, electronic mosquito repellent circuit diagram

Oscillator , circuit parameters are shown in Figure 255. According to actual measurements, the main electrical performance indicators are the same as those of imported machines. The power amplifier circuit is the same as the original machine; the resistor and capacitor values ​​are the same, and the transistor model is shown in Figure 255. In order to increase the power, the supply voltage can be slightly increased, and the specific data is also shown in Figure 255.

With the continuous development of bionics , people have gradually revealed some mysteries and characteristics of mosquitoes. Generally speaking, male mosquitoes do not bite people, but female mosquitoes carrying eggs bite people to suck blood. Female mosquitoes do not like to come into contact with male mosquitoes during the period of carrying eggs. They hear the 21~23KHZ sound of male mosquitoes.