Using GraphViz to Draw Networks

This GraphViz graph was animated using vis.js

Research Links


I want LTSPICE or otherwise to put out a spice deck like netlist as shown in the photo inset and the video embedded below. 

 I have not yet found a way to get this type of output.  All the output formats you can select for export in LTSPICE have the form:


RefDes1.Pin1, RefDes2.Pin1 …….



Which of course is suited to pcb layout programs but not what I am trying to do.   See ExpressPCB Netlist format.

Research Links

LayOutEditor and LTSPICE

Research Links


Plumbing Company Truck Ends up in Syria with Anti Aircraft Gun in the Back



The next time someone lays El Shibab in your toilet, call us. We will declare a jihad on your clog.

Island of Pines


TinyCad is a schematic capture program that can output SPICE compatible netlists.  It has library capabilities built in.  

A quick summary of tools used to Build and Maintain TinyCAD

1.    Microsoft Visual Studio 2003, 2005, or 2008 Standard or Professional (Commercial tool $).  Initial reports from other programmers are that Microsoft Visual Studio 2010 works without issues,

2.    TortoiseSVN or other SVN client (OpenSource tool – free from 

3.    Doxygen (OpenSource documentation tool – free from  Doxygen is used to generate special documentation for programmers to help them understand  large software projects.  TinyCAD was not originally written with Doxygen support, but I am working on adding it.

4.    Microsoft’s HTML Help Workshop.  This package has tools used to compile the TinyCAD Help files.  

5.    Nullsoft Scriptable Install System (NSIS) – Use version 2.40 or higher.  Older versions may not support the feature set that TinyCAD is using.  This very professional installer is Open Source and freely available from  Of course, it is possible to use any other installer program to construct your own installer for TinyCAD, but other tools are not supported by this developer at this time for lack of resources and time only.

6.    Microsoft Windows 7 Software Development Kit.  This is a free download from Microsoft.  

Note that after installing the Windows SDK, you must run a command from the SDK to update the paths for whichever version of Visual Studio that you are using (otherwise, it will continue to use the older include file path installed by your Visual Studio version).  On my particular copy of Windows XP SP3, I found this command using the sequence “Start Menu\Programs\Microsoft Windows SDK v7.1\Visual Studio Registration\Windows SDK Registration Tool”.  Select the highest available version in the dropdown version selector box.


Research Links Relative Rotation Graph


JdK RS-Ratio versus JdK RS-Momentum plot

JdK RS-Ratio

The JdK RS-Ratio is a normalized measure of trend in relative strength. So be careful it is therefore not a measure of relative performance as such but it tries to pick up trends in relative performance end measure the strength of such a trend. The JdK RS-Ratio is the input on the horizontal axis on the RRG chart. A universe of stocks or sectors can be ranked based on the values of the JdK RS-Ratio, high values are good, low values are bad. Values over 100 indicate an up-trend in relative strength while values below 100 indicate a down-trend in relative strength.

JdK RS-Momentum

The JdK RS-Momentum line is a normalized measure of momentum/rate-of-change of the RS-Ratio line and is, just like the RS-Ratio line itself, comparable across a universe of instruments. As a momentum / rate-of-change indicator is always leading the underlying (of which the rate-of-change is measured) you will note that the JdK RS-Momentum line will cross the 100-level upward when the RS-Ratio line has formed a trough and is starting to move up. JdK RS-Momentum will cross the 100-level downward when the RS-Ratio line has formed a peak and is starting to move downward.

JdK == Julius de Kempenaer


  "RRG charts show you the relative strength and momentum for a group of stocks. Stocks with strong relative strength and momentum appear in the green Leading quadrant. As relative momentum fades, they typically move into the yellow Weakening quadrant. If relative strength then fades, they move into the red Lagging quadrant. Finally, when momentum starts to pick up again, they shift into the blue Improving quadrant."

Research Links


Found in this ZeroHedge article.

LTSPICE: Dual Modulus 8 9 Current Mode Prescaler Files – Complete Set with IBM 65nM Files Adapted from MOSIS


LTSPICE: 8/9 Current Mode Prescaler Files – Complete Set with IBM 65nM Files Adapted from MOSIS



The Immediate Solar Neighborhood


Research Links