Here is a serious example of ASCII art:

o----)||(--+--|<----+   +---------o + D O
  L  )||(  |        |   |             C U
A I  )||(  +-->|-+  |   +-\/\/-+--o -   T
C N  )||(        |  |   |      |        P
  E  )||(  +-->|-+--)---+--|(--+-o      U
     )||(  |        |          | GND    T
o----)||(--+--|<----+----------+     

A power supply consisting of a full wave rectifier circuit
feeding a capacitor input filter circuit