How to Build an Inverter Circuit on a Breadboard

[@IAmThe_RA]

I wish you were my teacher when I was in college 😢.. I understood you the first time from start to finish 👍

[@sametsahin10]

Thank you very much for the detailed explanation.

[@NoOneAndNotYou]

Thank you 😊

[@modularsynthguy6694]

Why didn't to add a dropping resistor on the LED? And also use 2 Color LED, 1 for Hi 2 for Lo?