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PICList Thread
'Drawing Schematics'
1996\09\09@123822 by Philip Lalone

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       What do you people use for drawing schematics?  I don't want
simulating circuit design software, just something simple, free, and
preferably for Windows that can produce images and has a library of basic
and customizable parts.

                                               Thanks,
                                               Philip Lalone
                                               Alpha-X Development

1996\09\09@133326 by VERHAGE

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>         What do you people use for drawing schematics?  I don't want
> simulating circuit design software, just something simple, free, and
> preferably for Windows that can produce images and has a library of basic
> and customizable parts.

I use a sheet of graph paper covered with plain bond paper.  I reduce
the art work to 40% and transfer it with either Tech 200 film or with
a positive photographic method.

I'm too lazy to figure out how to use the PCB software.

Lloyd

1996\09\09@145837 by Bradley, Larry

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I've been using the demo version of PADS. It can be found in many places
on the Internet ... usually referred to as PADS-PCB, although the module
you want is the LOGICS module (it's part of the package).

It does a great job of schematics, and also PC Board layout, although
I've not yet made any PC boards. It is limited to about 30 components,
but that isn't a problem for most hobby stuff.

Larry

----------
From:  owner-piclist[SMTP:spam_OUTowner-piclistTakeThisOuTspamMITVMA.MIT.EDU]
Sent:  Monday, September 09, 1996 11:06 AM
To:  Multiple recipients of list PICLIST
Subject:  Drawing Schematics

       What do you people use for drawing schematics?  I don't want
simulating circuit design software, just something simple, free, and
preferably for Windows that can produce images and has a library of basic
and customizable parts.

                                               Thanks,
                                               Philip Lalone
                                               Alpha-X Development

1996\09\09@160840 by Long, Mike

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Philip,

I use PSPICE and with an easy to use (for the most part ) schematic
capture program that is in Windows I get PCB layout and simulation at
the same time.  Best of all, if you do small stuff, it's completely
free.

I happen to be lucky at the moment and have access to the $9k version,
too.  8-)

eval v6.3 is out now, anybody got it? ...worth the trouble from v6.2?

Mike


----------
From: Philip Lalone
To: Multiple recipients of list PICLIST
Subject: Drawing Schematics
Date: Monday, September 09, 1996 11:06AM

       What do you people use for drawing schematics?  I don't want
simulating circuit design software, just something simple, free, and
preferably for Windows that can produce images and has a library of
basic
and customizable parts.

                                               Thanks,
                                               Philip Lalone
                                               Alpha-X Development

1996\09\09@172957 by Scott Dattalo

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Long, Mike wrote:
>
>
> eval v6.3 is out now, anybody got it? ...worth the trouble from v6.2?
>

I've got V6.3 (PSpice A/D Basics+ not the eval version). There's not
that much difference between this and the previous version. (You can
however now double click the net names in probe to bring up the
"Edit/Modify Trace" command.)

Correct me if I'm wrong, but it wasn't until version 6 that MicroSim
released the schematic capture program to accompany their PSpice and
Probe software. It's obvious that they've put considerable effort in
developing this package..., but it's technically still at a v1.3 or
so stage in terms of product maturity. There are still a few "rough"
spots. Yet, I rate it as an excellent product, especially since it can
do almost as much as Cadence can for about 1/20 of the price!

Scott

1996\09\09@183711 by Long, Mike

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In terms of the technical simulations, I don't think PSPICE has changed.
It already had fifteen or twenty years (?) of maturity from the
original SPICE.

You are correct that the interface is in need of maturation.  My biggest
rub with it is trying to find a part that may or may not run across
multiple libraries.  You have no way of searching for a part across all
of your libraries.  So, you can just start looking...Analog Devices,
Burr Brown, LT, Mot, Nat Semi--which library has it???

I ended up using a string search from a DOS window and saving the part
in my own library.

Mike
----------
From: Scott Dattalo
To: Multiple recipients of list PICLIST
Subject: Re: Drawing Schematics
Date: Monday, September 09, 1996 2:24PM

Long, Mike wrote:
>
>
> eval v6.3 is out now, anybody got it? ...worth the trouble from v6.2?
>

I've got V6.3 (PSpice A/D Basics+ not the eval version). There's not
that much difference between this and the previous version. (You can
however now double click the net names in probe to bring up the
"Edit/Modify Trace" command.)

Correct me if I'm wrong, but it wasn't until version 6 that MicroSim
released the schematic capture program to accompany their PSpice and
Probe software. It's obvious that they've put considerable effort in
developing this package..., but it's technically still at a v1.3 or
so stage in terms of product maturity. There are still a few "rough"
spots. Yet, I rate it as an excellent product, especially since it can
do almost as much as Cadence can for about 1/20 of the price!

Scott

1996\09\10@115653 by Eric Thompson

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On Monday, September 09, 1996 11:06 AM, Philip
Lalone[SMTP:.....plaloneKILLspamspam@spam@ALPHAX.COM] wrote:
>>        What do you people use for drawing schematics?  I don't want
>>simulating circuit design software, just something simple, free, and
>>preferably for Windows that can produce images and has a library of basic
>>and customizable parts.
>>

I use two programs by Ivex, WinDraft for schematic capture and WinBoard
for PCB layout.  They are not the most sophisticated programs in the
world, but they are Windows based and they do everything I need to do.
Plus the shareware versions from their Web site allow you to do a design
up to 100 pins. (Not bad for FREE!)  Check them out at
http://www.ivex.com/

 - Eric Thompson

1996\09\10@142642 by Byon Garrabrant

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>         What do you people use for drawing schematics?  I don't want
> simulating circuit design software, just something simple, free, and
> preferably for Windows that can produce images and has a library of
> basic and customizable parts.

I have been using Microsoft Word 7.0 for Windows 95 and it has been
working pretty well.  I already had it and it has drawing capability.
I had to create my own components, but since I wanted to release
documentation and a schematic as well as a .HEX file for my hidden
transmitter controller on the net, I figured this would be a popular
format.  I can also easily convert the drawing art to a bitmap at any
resolution, so I can publish it on a web page.  When I do complete
version 1.0 of my project, anyone should be able to download the .DOC
file and use the components I created for other schematics.  It
probably would not be a good choice for a complicated circuit, but
for a few ICs and some glue, it's fine.

Byon

1996\09\10@143858 by myke predko

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Hi Larry,

Where can you find the demo version?  I couldn't find it on the PADs Company
Web Page.

Thanx,

Myke
{Quote hidden}

Do you ever feel like an XT Clone caught in the Pentium Pro Zone?

1996\09\10@161153 by Bob Blick

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Point your browser to: http://oak.oakland.edu/simtel.net/msdos.html

I did and entered the keyword "pads" and it came up with both programs:
pads-logic(schematic capture)
pads-pcb(pcb layout)

and also the required library files.

Please note that these free versions are not the Windows versions of their
product, but they are a professional product, with gerber, postscript,
plotter, and other output capabilities. It's a little dated, but it is a
total package for both schematic capture and pc board.

Also, this version is limited to a certain number of parts, but back before
I got the real version, and had a big project to do, I would set all
resistors to the same value, and it would count them all as one part,
thereby getting around the limits in the PCB program. The program counts a
part by the number of decals it has, so if you have a part with lots of
alternate decals, you can bypass the limits by cloning the part with only
the decals you actually plan to use(this trick works in the schematic
capture program as well). I did a microcontroller board with it that had
ram, rom, I/O, rs232 drivers, etc, and it definitely was right at the limits.

Video card selection is fairly good with the free version, but you may end
up using plain vga drivers :-<

Give it a try.

-Bob

>Hi Larry,
>
>Where can you find the demo version?  I couldn't find it on the PADs Company
>Web Page.
>
>Thanx,
>
>Myke

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