Found in a 1970s American documentation, this circuit uses components from the era that can eventually be replaced by modern equivalents. The power supply must be symmetrical.
The integrated circuit is from the time. This low-power circuit was found in the April 1973 issue...
This small amplifier, close to 1 W, was found in a 1963 documentation. The class B circuit uses...
This source of constant current was obtained in an American documentation of 1973. The transistors can be...