This circuit uses an unusual operational amplifier nowadays and has a very low consumption. The number in parentheses corresponds to the second channel, for a stereo version.
This small audio amplifier uses an uncommon integrated circuit today. The circuit is from a...
We found this circuit in a 1994 documentation. It was originally created to be used as a sign for...
We can control the frequency of an oscillator from digital circuits or from the output of a...