Gabriel Paubert <paub...@iram.es> wrote: > On Mon, Jan 18, 2010 at 11:05:02AM +0100, Florian Teply wrote: >> Florian Teply <use...@teply.info> wrote: >> > On Saturday 16 January 2010 06:03:18 Edward Hennessy wrote: >> >> On Jan 12, 2010, at 4:18 AM, Florian Teply wrote: >> >> > I'm gonna try and make up a list of properties of components starting >> >> > with passive devices. I'll go from very generic properties to more >> >> > exotic ones in a way i guess will be okay with most users and put that >> >> > list up for discussion. >> >> >> >> Excellent. Thanks. >> >> >> > No prob, was about do do that anyways as i wanted to have such database >> > for my >> > own use. Left it at work though, hopefully i'll have it in a state for >> > discussion by monday afternoon. >> > >> Hmm, looks like i have finished said document, at least i can't think of >> anything to add. Surely, it's not finished yet and does only cover >> resistors, capacitors and inductors so far as i can't make up my mind >> whether diodes should go with semiconductors or with passives... >> Anyways, it is to be found at: >> http://www.teply.info/gEDA/passive_properties.txt >> Anny and all comments welcome, i'll add them to the document. > > Consider that some inductances that I use are not symmetric. While > I don't know of any asymmetric resistors (but maybe they exist), > some microwave broadband inductors are asymmetric (you can't swap > pins 1 and 2, as for polarized capacitors): > > http://www.piconics.com/Conicals.html > > Coilcraft has similar products. > I knew i forgot about something i've seen in some distant past... ;-)
> In other ways, for two terminal components, some are symmetric > dipoles, others are asymmetric. Diodes might fall in the second > category, but diacs might fall in the first. > So, one could describe that as either asymmetry or sensitivity to direction. Gotta think about that real soon now, and will update the document as soon as i get home, have a train to catch now... Greets, Florian _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user