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 obtained in a 1991 Electronics Handbook. The publication no longer exists, but...
This configuration is from an old Motorola documentation from the 70s. The circuit uses operations that...
This simple amplifier was found in a Radio Electronics magazine from July 1970. The transistors are...