Recommended · for some experience
#219: Back to Basics: Introduction to Field Effect Transistors JFET MOSFET
Why people recommend it
A w2aew explanation of how JFETs and MOSFETs operate, offered as a clearer route to understanding field effect transistors than a text answer.
Watch for: the maker linked it himself in some threads
In their words
Introduction to Field Effect Transistors JFET MOSFET
Seamus on raspberrypi.stackexchange.com, Sept 2020. CC BY-SA.