Re: best way to get a //c monitor cable?

["Greg Andrzejewski" <pressyourluck85@yahoo.com>]

"Ralph Glatt" <julian814@hotmail.com> wrote in message
ce9c44dd.0408290556.7b095399@posting.google.com">news:ce9c44dd.0408290556.7b095399@posting.google.com...
> mjmahon@aol.com (Michael J. Mahon) wrote in message
news:<20040828123205.23168.00004515@mb-m07.aol.com>...
> > Ed Eastman wrote:
> >
> > >And yes, a shielded cable works far better than an unsheilded
> > >one.  Go to your local electronic place and pick up an shielded RCA
> > >Video cable for best results.
> >
> > What am I missing here?
> >
> > Virtually all RCA cables are coaxial (shielded) cables.  The ones
> > intended for video use usually have a lower dielectric constant
> > insulation between the center wire and the shield, but otherwise
> > there is little difference.  There is no place to connect a shield
> > except to the coax braid (shield) anyway.
> >
> > A shorter cable will work better than an unnecessarily long
> > one, just because the extra capacitance lowers the bandwidth
> > of the video signal.
>
> Well, here's my story.
>
> I bought a used //c at a garage sale, and it had this skinny little
> cable that looked like it came with the computer originally. When I
> hooked it up, the screen was all swimmy and wavy. Went down to Radio
> Shack, specifically bought a shielded cable, and when I tried it, the
> waviness went away. I'm guessing that the thinner cables are more
> susceptible to inteference than a thicker, shielded cable.
>
>
> Ralph Glatt

I had a similar situation when I bought my IIc. It was a lucky find at an
estate sale. They didn't even have the poor thing on display! I just
happened to enquire if they had any old computers. The IIc had been cared
for, minimal yellowing. But I experienced the same picture "swimming" you
described. The gentleman informed me that he had the monitor serviced for
the problem, but they found nothing wrong with it. I jiggled the cable a bit
and it seemed to go away. When I got the system home, I replaced the cable
and the rolling stopped. I don't know if it was interference, an old worn
cable, or a combination of both. Maybe the Apple cables weren't of the
highest quality?

-Greg