In the figure we have the basic configuration of an operational amplifier for audio signals. The circuit is from a Radio Electronics from the 90s. The power supply must be symmetrical.
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. The...
This circuit was found in an old Poptronics but is still current as transistors can be replaced...
The operational used in this common configuration is a double 741. The circuit can be used to...