Videos: Schematic Diagrams

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A schematic diagram is a representation of an electrical circuit, showing the electrical relationships using abstract graphic symbols rather than realistic pictures of components.

There are some components that schematics commonly include: voltage, ground, resistors, diodes, light emitting diodes (LED), switches, relays, capacitors.

A transistor includes three connections: a base, a collector and a emitter. It can work as an amplifier and a switch.

In schematics, to show a junction point, draw a dot at crossing.

Review on schematics components mentioned above.

Originally written on July 7, 2014 by Tom Igoe
Last modified on April 5, 2020 by Tom Igoe