Electronics Forum / CAD / February 2004

I've been running simulations were I'm looking for slight frequency
variations in the output for certain changes to the component values
in the circuit under test. Is there a way of getting LT to count the
number of cycles output during the course of say a 1uS portion of

           I have just setup a new user group on yahoo.  I am hoping that I
can encurrage user to contribute programs, cad, libraries and tips for all
Eagle users.
Please, join today it is Free

i am unable to find the component "DIAC" in pspice library wwhich can
be used in a circuit that needs to be simulated. please tell me how to
include such a library which contains this element.

I've obtained some newer models from fairchild for various mosfets, but they
seem not to run (without modification) in CircuitMaker, due to the inclusion
of expressions dependent on TEMP. I got them to run by simply evaluating the
TEMP constant as 25 and replacing the expression by ...

Sunday Morning Newspaper Laugh....
There was an accident report on a street in Scottsdale named:
          Camino sin Nombre
ROTFLMAO!

On this day in 1863 President Abraham Lincoln signed the bill creating
the Arizona Territory.
                                       ...Jim Thompson

Thought I had dissapeared? Nah..sorry :)
Ok...update....
Symbol Library editor should go into beta sometime in a week or
two...when that happens, I'll put it up, and whoever wants to try it

From today's East Valley Tribune (Phoenix East Valley), "The Vent"
column:
"Of course high school diplomas have lost their significance.  That's
what happens when curricula is dumbed-down to make self-esteem more

Posted this question to the User Group but it didn't appear so hoping
for better luck here.
There doesn't seem to be a category for diodes in the component list!
A rather curious omission. One can place one on the schematic from the

Reading a recent thread on fiducials, I have a question.
How do I use fiducials?  I understand that they help the pick-n-place equipment
locate ics or to mark fixed locations on boards or panels. How, if I'm using
local fiducials, do I determine where to place the mark?  How do I ...

Could anybody kindly tell me how to place fiducial marks in ProtelDXP? Many thanks!
Wei

I'm working on my first board using an SSOP surface
chip and having all sorts of problems with the two programs at my disposal.
Maybe this is commonplace for some software? It has the parts in library but
"good luck" using them?

My current PCB program has resolution to .05" and if I shell out the dough I
can upgrade to finer widths.
I don't really want to pay for the upgrade.
Here's a wierd question....

Testing of my new news server (no pun intended).

I'm having a problem in annotating my schematic.  I annotate on the
schematic w/ the following 2 steps:
1) Reset part references to '?'
2) Incremental update