This circuit was found in Siliconix documentation from the 1980s. Equivalent operational amplifiers can be used and the output current is very low.
This dimmer for incandescent lamps was obtained from an American 1990s documentation. The circuit...
In the figure we have the circuit of an amplifier for alternating signals with 10 times gain,...
This 80's circuit can be used in media recovery. The integrated circuit is of the time, but modern...