NOT logic gate electronics digital signal inverter

Not logic gates take a digital input signal which is commonly either 0V (low) or 5V (high) and output the opposite signal of the input.

NPN Transistor NOT Gate as a signal inverter circuit video diagram
NPN Transistor NOT Gate as a signal inverter circuit video diagram

NOT logic gate demo circuit made with electronics momentary tactile push button switch video below: Click here to watch directly on YouTube!

Not logic gate demonstration circuit using 2N2222 NPN Bipolar Junction Transistor BJT video below: Click here to watch directly on YouTube!

NOT Gate hex inverter integrated circuit SN74HC04N demonstration and voltage measurements video below: Click here to watch directly on YouTube!