gEDA-user: Schottky symbol polarity

[Randall Nortman <geda-lists@xxxxxxxxxxxxxxx>]

This was mentioned by somebody else on the list last year, but the
discussion turned to problems with simulating SMPS's on ngspice, and
the original issue was never really addressed:
http://archives.seul.org/geda/user/Oct-2006/msg00167.html

The issue is that schottky-1.sym has the cathode on pin 1 while all
the other diodes (that I've checked) have pin 2 as the cathode.  Is
this just an old mistake that can't be fixed now because we have to
preserve backward-compatibility?  Or is there some logic to this?  Is
there any way to add a visible warning to the symbol (as an attribute,
presumably, or permanent text) without breaking backward compatibility,
and then create schottky-2.sym with the correct polarity?

I ask because I just ran into it (again) myself, and it was only a
little voice inside my head saying "Wait, wasn't there some problem
with this symbol that you ran into last time?" that kept me from doing
it wrong again.  Granted, it only makes the silkscreen wrong, so once
you figure out you've made the mistake you can just mount the part the
other way.  But still, that's a mistake that could fry some components
if you don't catch it in time.

-- 
Randall


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