These circuits make you hear them work for many usages. Which there are:
This bird sound generator circuit was one of the first circuits I built as a child. It is a fairly simple and small circuit made up of only a transistor and some common components like resistors, capacitors, an audio transformer, and a few others. The function of this circuit is straightforward: when pressing the switch, … Read more
Here is The 4 Sound effects generator using UM3561 and a few parts only. It can make siren, Ambulance sirens, Police car sirens, Fire truck siren and Space Read more
Let’s play a simple toy organ circuit. My daughter has interested in piano. Believe it or not, we can create a simple piano circuit by ourselves. Read more
This is Morning sun alarm circuit using IC-4011 that hobby It will have sound alarm when morning like a normal clock alarm with lighting sensor same clock. Read more
Use high frequency out of the piezo speaker and IC-556 is base as oscillator between 22kHz and 56kHz
This projects is safer and more convenient. Read more