some fun with "spice models" .... 1N4004 vs 1N4007

It's on topic because these things are used by Gnucap too, with exactly
the same meaning.  (and issues)

Here's a couple of links:
https://www.el-component.com/diodes/1n4004
https://www.el-component.com/diodes/1n4007

For a fun exercise, compare them.  Try to explain the differences.

Felix .. please repost this to the Qucs help list in hopes that our
LTspice loving friend sees it.

These spice syntax models are intended for use with all Spice-syntax
simulators, including Gnucap, NGspice, LTspice, Smartspice, Hspice, and
a bunch of others.  You should get the same results on all of them.
(within appropriate tolerances)

So this is intended as "food for thought".  Can you explain the
differences between these models?  Do you know what the real difference
between a 1N4004 diode and a 1N4007 diode is?

I will sit quiet on this for a few days to give people some time to
think about it.