Recommended · for beginners
Electronic Basics #21: OpAmp (Operational Amplifier)
Why people recommend it
GreatScott's basics episode on op amps, routinely offered as a quick first explanation of how they are wired and how resistors set the gain.
Watch for: quick primer; one viewer could not reproduce the example circuit's output
In their words
Here is a quick tutorial on their basics:
Dat Ha on arduino.stackexchange.com, Oct 2016. CC BY-SA.
