Then use the vertical semi oval tool and draw the primary coil by drawing about 6 semicircles (See Using the line tool draw a horizontal line on top starting from the left side. Click on the zoom tool and zoom the sheet

See a blank page with the heading as shown in Figure 9. Then click on Transformer_CT and you will The name Transformer_CT will appear underĮlectronic_01 in the symbol library structure as seen in Figure 9. Then type the name for your new symbol (Here we have used the name Transformer_CT to denote transformer with centre tap) and click OK. Next rightĬlick on Electronic_01 and from the popup menu that appears select Add a Symbol (See Figure 7). I am going to create the symbol of a step down centre tapped transformer that is commonly used in rectifier circuits as an example of a new symbol. In theĬase of text first select draw the text box and then set the properties in the style bar.

You can change the style of the various objects ( lines, rectangles, circles, arcs etc) by selecting them after drawing them and then changing their style in the style bar. Figure 3 shows a simple circuit diagram in grids window and Figure 4 shows the diagram as it will be printed. We can use the use the symbol in our drawing by dragging the name capacitor from the symbol toolbar to The plus sign next to capacitors reveals two symbols capacitor and variable capacitor.Ĭlicking on capacitor displays the corresponding symbol in the symbol toolbar.

Click on the plus sign until it changes to minus and you can see the symbol list.įor example the Electronic symbol library consists of the folders capacitors, diodes, inductors, resistors, transistors and the symbols for battery, chassis ground etc. You will see a list of different types of symbol libraries. One denotes the symbols toolbar and the other the style toolbar.

Openoffice draw semi circle