We found this circuit in documentation from the 90s. It is a common configuration that is given in two versions, using transistors and using two integrated inverters.
This small audio amplifier was found in the May 1994 issue of Electronics Now magazine. The power...
The displayed relay operates with an audio signal applied to the input. The transistors can be...
The circuit shown in the figure and uses the diode in the leakage current operation mode. In it,...