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Re: Question around sound card curve tracer for William Kroyer


 

Yeah I figure with the soundcard o-scope software I could probably get some somewhat decent readings but really that's not my goal. I'm more or less just looking to use mine for reference. ie spotting bad/leaky caps, diodes, and transistors. The nice thing about doing it with a PC is that I could take screen captures of good signatures for various components and use them for comparison against a suspected bad one.

----- Original Message -----
From: Gaurav Verma
To: Electronics_101@...
Sent: Sunday, October 08, 2006 7:01 AM
Subject: Re: [Electronics_101] Question around sound card curve tracer for William Kroyer


Hi
I had made a circuit some time back for curve tracer, but it fed into a
scope. The circuit was also verified by the group. The problem is that
though I would get the look of the curve the values in the graph did not
have ay number assigned to it. Thus it will be nice to have a curve tracer
which would be computer controlled in its plot.
Gaurav

On 10/7/06, Roy J. Tellason <rtellason@...> wrote:
>
> On Saturday 07 October 2006 09:18 pm, Gaurav Verma wrote:
> > Hi William
> >
> > In a previous post you discussed about a sound card based curve tracer.
> I
> > would request you to share information about the same.
> > I am looking for the following information
> >
> > 1) Is it a circuit you made yourself or did you buy it
> > 2) What is the software for it.
> >
> > I would request you to share the information around it with me.
>
> There was some discussion on curve tracers in here a while back. I forget
> which kind were being talked about. There are basically two kinds...
>
> One is the sort that will display useful curves for characterizing a
> semiconductor device. I have one of those, a B&K, though it has some
> limitations like only dealing with depletion-mode FETs and only going to
> 100V
> maximum.
>
> The other kind is more general, for getting an idea of what the
> characteristics are of many different kinds of components, and I know
> there
> are some circuits of that sort out there on the 'net as well.
>
> Which are you looking to do?
>
> --
> Member of the toughest, meanest, deadliest, most unrelenting -- and
> ablest -- form of life in this section of space, a critter that can
> be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
> -
> Information is more dangerous than cannon to a society ruled by lies.
> --James
> M Dakin
>
>
>

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