Electronics Forum / CAD / May 2007

how do we place already existing components in a circle using orcad
layout plus?

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Dear friends.
How we can convert OrCAD schematic to ProtelDXP schematic?
thankful of you

Please excuse the beginner questions; this is my first attempt at
etching a PCB.
I bought some 2oz dbl sided boards, and will be etching them using
Sodium Persulphate. I've done the traces using press-n-peal blue. I do

http://www.brorson.com/gEDA/SPICE/x496.html
I was evaluating a few free and demo SPICE programs.
I'm surprised that my port of SPICE 2G6 could be the most reliable
Electric Simulator for large circuits. I did the port in 1990.

Is there a method for changing the default color of a netlist connection?
The 'sandy' color can be difficult to see on the black background i the PCB
editor.
You can manualy change the color of each net connection, but a way to change

Anyone know of models for the TIC226M triac or the MOC3021 opto triac?
TIA

 I am trying to attach a copper area to my ground plane using VIAs. I
lay several vias out and make sure their net is set to GND as well. I
get a few down and they are all attached to the GND net then for some
reason, my layout window minimizes and all the vias I had placed are

Which CAD program is good for designing WMDs?
I want to build the Doomsday Device (tm), but
this has to be properly designed. Although
the Earth is full of scum, people deserve

Just throwing this idea out there - I am actually going to try it this
week for a double sided LAYOUT
1. print 4 images on the laser printer
   image 1=component side mirror

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Does any one know how to convert Cadstar PC board and schematics to
Orcard?
- Kavita

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This is the daughter of my oldest daughter who just finished the
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Can anyone tell me how to get reference designator information into
GC-Prevue? Whenever I use Jump to Component, I get the message "Can't
find a component called xx", where xx is the reference designator I am
trying to locate.

I've a little research project that is quickly running out of money
because I can't get a good model into MWO.  I've too many years of EM
experience, but am new to MWO and IE3D having acquired evaluation
licenses for both, but am having trouble climbing the learning curve.