I may have missed it... but did you check
all of the low voltages, and the ripple on each of them?
tom jobe...
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----- Original Message -----
Sent: Tuesday, October 09, 2012 6:11
PM
Subject: [TekScopes] Re: Jumpy trigger
control on Tektronics 475
?
And we need to see the beginning of the sweep (i.e., the trigger point).
Right now, I'm thinking it's off screen. Move the trace horizontally to the
right so the sweeps starts about a half a division in from the left side, and
post another video if you can.
Regards,
Jimmy
--- In TekScopes@...,
"jtjewell83" wrote:
>
> Is the scope's 10X
Magnifier on? I cannot tell from the video. That would make the gitter of the
sound card look 10 times worse than it really is.
> >
> >
On Tue, 09 Oct 2012 01:43:05 -0000, "dawtesla2"
>
> wrote:
> >
> > >I got this oscilloscope a few days
ago. I put up a 1 Khz sine wave (from PC sign wave gen.) to test it. But my
sine wave won't stabilize. When stopped, it dances around a bit with a slight
pulse. All this makes it difficult to make a proper frequency reading. It's a
great scope except for that. Does anyone have any idea what the problem
is?
> > >
> > >Here's a video link
> >
>
> > >
>
> >
> > >
> > >Thanks, Derek
> >
>
> > >dawtesla2@
> >
>
