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Hello All,<br><br>
Yup, back in the good ol' days, SCH Ø was almost a daily check at channel
39 in Houston. And the awesome gizmo that made checking it a snap was the
Lenco Videoscope SCH Ø meter. Slap the output of that baby into your
router and you could verify the whole plant by yourself. No more,
"Just a skosh more... THERE! Ooops. No, go back the other way, ya,
ya, WOOF!".<br><br>
Great color framing piece by Eric Wenocur here if you want to reminisce:
<br><br>
"The Final Word on SC/H and Color-framing (Orig. 2/1990 Rev. 7
1/2000 © Eric Wenocur)"<br><br>
<a href="http://www.lab-tech-systems.com/colorframing.pdf" eudora="autourl">
http://www.lab-tech-systems.com/colorframing.pdf<br><br>
</a>Best regards to all,<br><br>
John<br><br>
PS to Park - Spoke to Ric Gregory earlier today (former Ampex sales). He
said to say hi and to wish you well!<br><br>
=================<br><br>
Have knelt before the TR-70A, TR-70C, TR-4, TR-600, AVR-2, AVR-3, ACR-25
(buffer version), VR-1200, VR-2000, Editec, the VPR-2 and the
VPR-80<br><br>
John Schilberg<br>
13327 Nevermore Drive<br>
Cypress, TX 77429-3123<br>
N29 57.159 W095 37.482<br><br>
Office: 281-955-5151<br>
TEMPORARY Cell - 713-725-1655<br>
Home: 281-955-1661<br>
Fax: 281-955-5118<br>
Email: jschilberg@swbell.net <br><br>
<br>
At 09:30 AM 4/7/2009, you wrote:<br>
<blockquote type=cite class=cite cite="">Back in the early days of
1" VTRs, we didn't have everything capable of correct SCH phase.
Some sync generators, cameras, CGs and TBCs were not RS-170A and
vectorscopes didn't have a convenient SCH phase indicator. Also, things
drift. So the only way to insure perfect RS-170A coming out of the
switcher was to use a Sync-Proc. Worked well.<br><br>
Best,<br>
Park<br><br>
C. Park Seward<br>
Visit us:
<a href="http://www.videopark.com">http://www.videopark.com</a><br><br>
<br><br>
On Apr 7, 2009, at 7:03 AM,
<a href="mailto:Chill315@aol.com">Chill315@aol.com</a> wrote:<br><br>
<blockquote type=cite class=cite cite="">I wanted to do the same thing
but did not see the need in a post production environment. The most
important thing to us was to insure that SCH was always on the
money. That prevented shifts while editing. Also we needed to
do this for the clone tapes used to do dissolves to the same
material.<br>
<br>
I may have misled people a little bit when I talked about the 180 degree
shift. This was meant to be the 180 degree difference between each
line of the NTSC system. The old Fsc divided by 455 / 2 gives us
the change on each line. NTSC is a great system for all its
drawbacks. When you think that the engineers designed it over half
of a century ago and it still makes good pictures today. <br>
<br>
Chris Hill<br>
</blockquote><br>
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