The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a transconductance operating and the power supply need not be symmetrical.
This circuit was found in an Electronics World magazine from 1990. The circuit can be mounted...
In the figure, from a documentation from the 70s, we have a few-watt amplifier for general use....
This circuit is from 1968 and consists of an amplifier for turntable of the time. The CA3020 was...