<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Trevor and Tony,<div><br></div><div>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 <span class="Apple-style-span" style="font-family: Arial, Helvetica, sans-serif; font-size: 12px; line-height: 15px; ">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.</span></div><div><br></div><div><a href="http://www.flickr.com/photos/12064036@N04/4050912252/">http://www.flickr.com/photos/12064036@N04/4050912252/</a></div><div>Which leads to this:</div><div><a href="http://www.radiomuseum.org/forum/45_years_anniversary_of_walter_bruchs_pal_color_television.html">http://www.radiomuseum.org/forum/45_years_anniversary_of_walter_bruchs_pal_color_television.html</a></div><div><br></div><div>David</div><div><a href="http://www.dcvideo.com">www.dcvideo.com</a></div><div><br></div><div><br><div><div>On Mar 8, 2011, at 1:31 PM, Tony Quinn wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>In message <003101cbddd6$f30f09e0$d92d1da0$@com>, Trevor Brown <<a href="mailto:videovault@sky.com">videovault@sky.com</a>> writes<br><blockquote type="cite">Tony I bow to your mathematics it’s a long time ago<br></blockquote><blockquote type="cite">Was it not 1/4 cycle of subcarrier ? 4.43361875 Mhz<br></blockquote><br>Half a cycle ... It resulted in Colortec going (effectively) from one end to the other)<br><blockquote type="cite"><br></blockquote><blockquote type="cite">It’s a small picture jump that you get away with on cuts<br></blockquote><blockquote type="cite">110 or 112.7 its equally annoying<br></blockquote><br>Only on invisibles, if there's as change of picture content it becomes )to all intents and purposes) invisible<br><blockquote type="cite"><br></blockquote><blockquote type="cite">Colortec ??? CATC :-(<br></blockquote><br>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)<br>-- <br>If one person has delusions, we call them psychotic. If, however, 1.5 billion<br>people have delusions we must apparently call them a religious group, and<br>respect their delusionary state.<br><br>_______________________________________________<br>Please trim posts to relevant info when replying!<br>Send QuadList list posts to <a href="mailto:QuadList@quadvideotapegroup.com">QuadList@quadvideotapegroup.com</a><br>Your subscribe, unsubscribe and digest options are here:<br><a href="http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegroup.com">http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegroup.com</a></div></blockquote></div><br><div>
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