Re: gEDA-user: Trace impedance calculations in PCB

2009-02-12 Thread Jeffrey Gregory
On Thu, Feb 12, 2009 at 8:43 PM, Dan McMahill wrote: > What do you have in mind? What should the calculations provide? How > would you want to access them? I have a range of things on my wish list. I originally thought it would be best to include at least the first few of these in PCB (ctrl-R

Re: gEDA-user: Trace impedance calculations in PCB

2009-02-12 Thread Jeffrey Gregory
On Thu, Feb 12, 2009 at 1:41 PM, Gabriel Paubert wrote: >> As Joe pointed out too, PCB doesn't not know about the metal layer >> separation distance, nor does it know the dielectric constant of your >> insulating material. Therefore, it cannot do impedance calcs. Obviously this would have to be

gEDA-user: Trace impedance calculations in PCB

2009-02-12 Thread Jeffrey Gregory
Are there any plans to add trace impedance calculations to PCB? If not, is there an argument against it or just that no one has time and interest? What alternatives do people use? Best Regards, Jeff ___ geda-user mailing list geda-user@moria.seul.org

Re: gEDA-user: Running gEDA On an AMD Athlon

2007-05-30 Thread Jeffrey Gregory
Make sure you download and install a modern distribution. It would be difficult to get the requirements correct using Redhat 7.1 (that must be close to 10 years old now). CDs to install the newest versions of Fedora, Gentoo, or Ubuntu are all easily downloaded and work effectively with gEDA (Ubun

Re: gEDA-user: aroma hotplate info

2006-11-03 Thread Jeffrey Gregory
You might try putting an iron skillet on your hotplate as a heat diffuser. It will take some extra time to heat up, but should be much more even (also useful for making candy on an electric range). Used ones should be available for a lot less than $20. -Jeff ps, I've been reading this list for