This circuit is the factory version of the LM386 low-power amplifier. The sound quality is excellent, and the power can be supplied with voltages from 6 to 16 V.
Found in a Popular Electronics of the 90s this configuration can be seen elsewhere on our site....
Found in an Electronic Design of 1964 this circuit has a control for the frequency and another for the...
This circuit of the 80's makes use of components of the time. The circuit is from an American...