[QuadList] [Quad List] Question of the week-RCA AE 6000 editor/TEP

[Wayne Watson]

So my understanding is that the "TBC" of the day moved the luminance only 140ns to match the chroma and that was the small hor shift you saw (on match frame only edits). I think later the Ampex Zeus was the only TBC to know about this and "fix" them. I think it was a mode you could turn on the prevent this problem.

Wayne Watson

 

-----Original Message-----
From: quadlist-bounces at quadvideotapegroup.com [mailto:quadlist-bounces at quadvideotapegroup.com] On Behalf Of David Crosthwait
Sent: Tuesday, March 08, 2011 6:15 PM
To: Quad List
Subject: Re: [QuadList] [Quad List] Question of the week-RCA AE 6000 editor/TEP

Trevor and Tony,

A half-cycle of subcarrier (H shift) is 140 ns. here in NTSC land. 

Been there, done that...

David
www.dcvideo.com


On Mar 8, 2011, at 1:31 PM, Tony Quinn wrote:

> In message <003101cbddd6$f30f09e0$d92d1da0$@com>, Trevor Brown <videovault at sky.com> writes
>> Tony I bow to your mathematics it's a long time ago
>> Was it not 1/4 cycle of subcarrier ?  4.43361875 Mhz
> 
> Half a cycle ... It resulted in Colortec going (effectively) from one end to the other)
>> 
>> It's a small picture jump that you get away with on cuts
>> 110 or 112.7 its equally annoying
> 
> Only on invisibles, if there's as change of picture content it becomes )to all intents and purposes) invisible
>> 
>> Colortec ??? CATC   :-(
> 
> Yes - but I have very limited experience of RCA kit - VT24 was about my limit -  I would never, due to grades at the time, have been allowed into Suite 2 (Rip. Scratch, and all that)
> -- 
> If one person has delusions, we call them psychotic. If, however, 1.5 billion
> people have delusions we must apparently call them a religious group, and
> respect their delusionary state.
> 
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