On Tue, 31 Mar 2009 20:29:45 -0500, Ignoramus8285 wrote:

I have a couple of things that I have done and I want to write and
retain schematics of them. One is a fancy phase converter with two
idlers that are switched at different times. Another is a fancy wiring
scheme for my compressor, to permit "on demand" vs "continuous" run,
as well as a start button to prevent unintended starts.

I did it without drawing schematics just by keeping it in my head.

In any case, I still remember how I did my phase converter 4 years
ago, but I do not want to rely on my memory.

So. Is there some easy to use Linux software that is available under
ubuntu, that I could use to draw electrical schematics.

thanks
alt.os.linux.ubuntu,comp.os.linux.misc,r

Xcurcuit
http://opencircuitdesign.com/xcircuit/

Oregano
http://oregano.gforge.lug.fi.uba.ar/

KTechlab
http://ktechlab.org/
Seems there are issues with "ubuntu" I have it because they all came with
Mandriva Powerpack. In fact all these programs did.

gEDA
http://www.gpleda.org/

Klogic
http://www.a-rostin.de/

qucs
http://qucs.sourceforge.net/screenshots.html
This is in development but looks simple to use.

The price is right to try.

If you remove the crosses and garlic from your computers there is a
free evaluation version of PADS available from Mentor Graphics:
http://www.mentor.com/products/pcb-system-design/

PADS is a very powerful commercial schematic capture and board layout
suite, easily capable of circuits as complex as a PC motherboard or
digital satellite radio network controller (what I used it for). The
eval version will not print or plot a design with more than 30
electrical symbols but that isn't a serious limitation unless you want
to make Gerber plots to fab a board. The command tree structure is
unintuitive and it's somewhat difficult to learn.

The currently available version runs fine under Win2000 and XP.
Serious professional design software like this is why I don't run unix
any more. I spent ten years at a PC-unfriendly company, struggling
with the Mac and Solaris alternatives.

Jim Wilkins