The Models region of the panel shows that this component has a footprint, a simulation model and a signal integrity model.

Click on the component name 2N3904 to select it.

Select the Miscellaneous Devices library from the list, then use the component Filter in the panel to locate the required 2N3904 component within the library. Added libraries appear in the drop down list at the top of the Libraries panel, as you select a library in the list the components in that library are listed below.

Since the Miscellaneous Devices library is already installed, the component is ready to place.

Alternatively, install the library by right-clicking on the found component and selecting Install Current Library, as shown in the image above.

You can only place components from Libraries that are installed in the software, if you attempt to place from a library that is not currently installed you will be asked to Confirm the installation of that library when you attempt to place the component.

The query generated by your search configuration should be (Name LIKE '*3904*'), if it is not, type this string in and click Search again. In the Libraries Search dialog, switch to the Advanced mode to examine the query. Library searching is actually performed using queries - a feature supported by the query engine that underlies the schematic and PCB editors. Right-click on the project filename in the Projects panel, and select Save Project to save the project.

Since you have added a schematic to the project, the project file has changed too.

Note that files stored in the same folder as the project file itself (or in a child/grandchild folder) are linked to the project using relative referencing, whereas files stored in a different location are linked using absolute referencing. Type the name Multivibrator in the File Name field and click Save. The Save As dialog will open, ready to save the schematic in the same location as the project file.

To save the new schematic sheet, select File » Save As.

schdoc will open in the design window and an icon for this schematic will appear linked to the project in the Projects panel, under the Source Documents folder icon.

Right-click on the project filename in the Projects panel, and select Add New to Project » Schematic.

Create a new schematic sheet by completing the following steps:

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