This circuit is from the Motorola LinearDatabook of 1990. It shows how it uses the LF355, 356 and 357 operational capacitive loads. The power supply must be dual.
The integrated circuit used in this application is not very common. The circuit is intended for...
The focused circuit was found in the National Semiconductor's Linear Applications Handbook of...
The TDA2040 is not a common IC these days, but if you find one you can build this high quality...