Although the ubiquitous LM386 IC was designed to be used as an audio amplifier ... Ohm feedback resistor, causing the single input gain to change to 15,000/150=100. Moving the bypass capacitor between ...

What is the LM386 audio amplifier? The integrated chip LM386 is a low power audio frequency amplifier requiring a low level power supply (most often batteries). It comes in an 8-pin mini-DIP package.

If there were no such thing as an LM386, you could take a very nice op-amp for the voltage gain stage and wrap up the output transistors in the op-amp’s feedback loop to handle the current demand.