AACircuit(Windows)
Sprog:
http://www.tech-chat.de/files/AACircuit1_28_6.zip
.---o----o------o---o---------------o---o----o------------o12-15V
| | | 22uF| + | | |
.-. | .-. ### .-. | | .-------o
| |<-| | | --- | | | | | .|--o
| |5k | |5k6 | | | | | | |
'-' '-' | ---| '-' | _|_ o /o
| | === | | | |- /
.-. | GND ---100n LED V - /
| | | --- - ^ | o
| |6k2 | | | | | |
'-' | GND '---o----o '-------o
| | 2|\|7
o-----------------|-\ LM741 ___ |/
| | | >-------o--|___|-|.---|
| o---o----|+/ 6 | 22k | |> BC547
| | | 3| | | | |
.-. | | === o- .-. |
| | | o---| GND | | |5k6 |
| |2k7 .-. | -. ___ _V_ | | | |
'-' KTY10 | + | |___|--|___|-| '-' |
| | | ### 47k 220k | |
| '-' --- | |
| | | | |
| | | | |
'--------o---o-------------------------o-----o------------o GND
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)
(Windows, Linux, OS X)
Sprog:
http://www.kicad-pcb.org
Blackboard(Windows, Linux, OS X)
Sprog:
Download V1.0Download V1.1Kort beskrivelse 
Fritzing(Windows, Linux, OS X)
Sprog:
...
http://fritzing.org/
DesignSpark PCB(Windows + Linux med Wine)
Sprog:
http://www.designspark.com/eng/page/designspark-pcb-home-page
Eagle(Windows, Linux og OS X)
Sprog:
http://www.cadsoftusa.com/
Target 3001(Windows)
Sprog:
http://ibfriedrich.com/
FreePCB(Windows)
Sprog:
http://en.wikipedia.org/wiki/FreePCB
DiskussionDiagramtegning og PCB-layout på andre platforme end PC/WindowsDiagramtegnings/Printudlægningspakkeelektronik-forum.dk/index.php?topic=607
Der er en diskussion om denne artikel:
Sv: Diagram og PCB-layout programmer