So far, we have used very detailed illustrations to describe how to assemble our circuits, but as you can imagine, it’s not exactly a quick task to draw one of those for any experiment you want to document.
Similar issues arise, sooner or later, in every discipline. In music, after you write a nice song, you need to write it down using musical notation.
Engineers, being practical people, have developed a quick way to capture the essence of a circuit in order to be able to document it and later rebuild it or pass it to somebody else.
In electronics, schematic diagrams allow you to describe your circuit in a way that is understood by the rest of the community. Individual components are represented by symbols that ...