In the diagram from the November 1999 Electronics Now magazine we have the way to improve both the gain and the stability of the LM386 amplifier.
This circuit was found in a 1986 publication. However, it can still be easily assembled, as the...
In the figure we have an anti-ring circuit with 4093. The duration of the pulse is given by R1 and...
This circuit was originally indicated to generate audio signal for analog TV sound. The circuit is from...