Re: Curve Tracer

On Tue, 04 Feb 2025 16:51:22 +0000, Cursitor Doom <cd@notformail.com>
wrote:

Gentlemen,
>
I've decided a nice project would be to build a curve tracer which
would (because I'm a vintage nut) use a CRT display of an
oscilloscope. From time to time I have these Big Ideas and it could
conceivably become the latest in a long line of my unfinished
projects.
>
Which curves would be essential to include for a decent, functional
design? I know what the obvious ones are; just wondering if there are
any more obscure ones which would be advantageous to plot. Finally,
are there any additions one could make to a classic curve tracer's
functionality which were omitted from the early designs (modulation
feature at 1Mhz,100Mhz or whatever) for example?
>
CD.

I'd like to see pulsed avalanche behavior of mosfets, preferably to
destruction.

C-V curves would be great too.

Stuff that's not on the data sheet.

The thing about an analog CRT scope is that it isn't quantitative and
forgets instantly. A digital scope would fix that. A curve tracer
should be able to trigger the scope and do short single-shot events.