Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM
Probe 420*4820 spring exposed needle head diameter is 5.0 high current needle
As shown in the figure, the oscillating frequency synthesized by the left side 555 is about 22KHz, and then a 50Hz is generated by the 555 monostable circuit on the right side, and the square wave of the 50% duty cycle is input to the left side of the 555 pin 5 to synthesize a noise. To drive away mosquitoes.
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