Transistor as a switch Equipment: Plug in board. NPN Transistor. Set of resistors. LED Set (yellow/red/green) DC power supply (0-15)V/300mA Cables. Categories: Electronics, Physics Tag: Transistor as a switch Description Description Transistor as a switch Transistor as a switch experiment video Downloads and Documents Related products Read more Magnetic Moment Read more Hook’s law – with force sensor Read more Magnetic Field Strength by Tangent Galvanometer Read more Meter Bridge