Re: [Elecraft] Freebie CAD program

2004-12-15 Thread Tom Russo
On Wed, Dec 15, 2004 at 05:49:31AM -0600, James T. Jim Rogers, W4ATK <[EMAIL 
PROTECTED]> appears to have written:
> I need to produce a couple of "quality" schematics. Anyone know of a
> "freebie" CAD program to do this.

Somebody has already mentioned "gschem", but that is just one of the 
"gEDA" tools.  Here's the top-level link for the whole suite:

http://www.geda.seul.org

There was an article about this in EEdesign on Monday:

http://www.eedesign.com/story/showArticle.jhtml?articleID=55301354

-- 
Tom RussoKM5VY   SAR502   DM64ux  http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://www.qsl.net/~km5vy/
   "Abandon the search for Truth.  Settle for a good fantasy."
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Re: [Elecraft] Circuit Simulation Software

2004-11-18 Thread Tom Russo
On Wed, Nov 17, 2004 at 09:44:50AM -0800, Howard W. Ashcraft <[EMAIL 
PROTECTED]> appears to have written:

> I am looking for software (preferably Linux, open source) to model
>  electronic circuitry.  My primary interest is educational.  I want to use
>  the software to design and investigate circuits to better understand how
>  they work.  I may do a little design, as well.  Does anyone have
>  suggestions?

Probably your most accessible open source/linux code will be SPICE3.
You might be able to find an RPM or "apt-get"-able binary somewhere, or you
can pull the sources down from Berserkely.

http://infopad.eecs.berkeley.edu/~icdesign/SPICE/

ftp://ic.eecs.berkeley.edu/pub/Spice3/

On FreeBSD you can get this going just by "cd /usr/ports/cad/spice; make
install", but that probably won't help you.

For schematic capture you might want to look at gEDA (gschem, gnetlist and
other tools): 
http://www.geda.seul.org

I've used gschem and gnetlist a little.  They're not as easy to use as some of
the commercial tools, but you can do quite a lot with them.

There's another circuit simulator out there for linux and other platforms, but
it's not yet open sourced and available only by special licensing.  Hope to be
able to say something different in a few months.

-- 
Tom RussoKM5VY   SAR502   DM64ux  http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://www.qsl.net/~km5vy/
   "Abandon the search for Truth.  Settle for a good fantasy."
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