Using a Transistor as a Switch

How To Use Transistors In YOUR Projects! || Transistors Explained || Transistors As A Switch

How to use a transistor as a switch

Electronic Basics #22: Transistor (BJT) as a Switch

How to use transistors as a switch - NPN and PNP - Active High and Active Low

Transistors Explained Simply: Switches, Amplifiers, Cutoff, Saturation & Q-Point

Transistor Logic Gates - NAND, AND, OR, NOR

Making logic gates from transistors

Logic Gates from Transistors: Transistors and Boolean Logic