This is one of the many versions of cricket that the reader can find on this site. This circuit is not light triggered, like many of the ones we have described, but simply produces the sound of cricket. Components can be changed for greater realism.
Division of a digital signal up to 4098 can be done using the 4040 IC as shown in Figure bellow....
This circuit split the voltage of a Power supply allowing it to be used as dual supply. The limit...
In this circuit of an American publication of 1978, the integrated circuit may be the 4001 and the...