The sound of insects such as crickets, cicadas, resulting from flutter briefly. We can use a multivibrator to connects as sound generator circuit to imitate these insects sound.
Some electronic clock alarm tone also sounds similar to these insects. As Figure 1 is simple clock alarm sound generator that can assemble on a breadboard right away.
Working of circuits
As Figure 1 The circuit consists of two astable multivibrator, firstly include both gate IC1c and IC1d are used generate low frequency as the sounds of insect wings. A second also include with both gate IC1a and IC1b same simple tone generator using CD4011 which is higher frequency than first. And they are used to set rhythm interval of sound.
The output of multivibrator 2 (pin 4 of gate I2) will be controlled by the first astable multivibrator which generates the low frequency as the tone burst signal characteristics.
Some electronic clock alarm tone also sounds similar to these insects. As Figure 1 is simple clock alarm sound generator that can assemble on a breadboard right away.
Working of circuits
As Figure 1 The circuit consists of two astable multivibrator, firstly include both gate IC1c and IC1d are used generate low frequency as the sounds of insect wings. A second also include with both gate IC1a and IC1b same simple tone generator using CD4011 which is higher frequency than first. And they are used to set rhythm interval of sound.
The output of multivibrator 2 (pin 4 of gate I2) will be controlled by the first astable multivibrator which generates the low frequency as the tone burst signal characteristics.
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