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

David Crosthwait david at dcvideo.com
Wed Mar 9 10:38:59 CST 2011


Trevor and Tony,

I had always heard of the "8 field Bruch Sequence" and later on in life in linear edit bays operating in 625 PAL here in the U.S, dealt with long pre-rolls and the PAL color framing issues. This was particularly gruesome with PAL 1" type B and C edits. "Bruch" refers to Doctor Eng. Walter Bruch of Telefunken labs who invented the PAL system in 1965. Did either of you ever meet Dr. Bruch? He passed away over two decades ago.

http://www.flickr.com/photos/12064036@N04/4050912252/
Which leads to this:
http://www.radiomuseum.org/forum/45_years_anniversary_of_walter_bruchs_pal_color_television.html

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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