[[RF.Spice]]'s [[Schematic Editor|schematic editor]] allows you to enter and build up your circuit design very quickly. [[RF.Spice A/D]] offers one of the easiest and most intuitive schematic editors currently available in the market. When building a new circuit, you add parts into the circuit window by choosing them from [[menus]] or from the Toolbox or simply using [[Keyboard Shortcuts|keyboard shortcuts]] like R, L, C, Q, etc. Then, you draw wires to connect the parts. You will also set properties for the devices to customize their behavior.
You can choose from a list of the most commonly used parts directly from the Parts Menu. This menu is a quick way of selecting a generic or popular example of a type of part. It also contains the basic parts common to most circuits, such as resistors, capacitors, and inductors. Most generic parts have [[Keyboard Shortcuts|keyboard shortcuts]]. For example, you can place a resistor, capacitor or inductor by simply typing R, C or L on the keyboard, respectively. Click here for a list of [[Keyboard_Shortcuts List_of_RF.Spice_A/D_Keyboard_Shortcuts | Keyboard Shortcuts]].
In the Parts Menu there is a Select Part command, which brings up a dialog box that allows you to quickly filter the database using a list of part functions. Typing in a name or part of a name in the filters and clicking the "Apply Filter to Database" button will show a list of parts containing the desired text. Selecting a function from any one of the function boxes will also further filter the parts list. Or you can type in a name in the Device Name field and click on the "Find" button to quickly filter the database for a part exactly matching the name.