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<DIV>Sorry not this one either.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 11/14/2011 2:39:52 A.M. Eastern Standard Time,
ted@quadvideotapegroup.com writes:</DIV>
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<DIV>Perchance are you Referring to the BBC-modded VR-1000 used in 1964 and
later?</DIV>
<DIV><BR></DIV>
<DIV><BR></DIV><A title=http://www.vtoldboys.com/donk01.htm
href="http://www.vtoldboys.com/donk01.htm">http://www.vtoldboys.com/donk01.htm</A>
<DIV><BR></DIV>
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class=vtheadcentredsmall><STRONG>FORWARD BY THE AUTHOR</STRONG> DON
KERSHAW</P>
<P style="MARGIN-TOP: 0.5em">It’s now 10 years since I retired from the
BBC, having been in “Tel Rec” since I joined in May 1955. I always
intended to write a history of the development of Video Recording in the
BBC, and the positions I held, never far from the coal face, will
hopefully add authority to the story as it unfolds.</P>
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<DIV>He writes:</DIV>
<DIV><BR>
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class=vtheadcentredsmall><STRONG>ENGINEERING DESIGNS AND RESEARCH
WORK</STRONG></P>
<P style="MARGIN-TOP: 0.5em">Three of the machines were used by Research
and Designs Depts to develop special facilities. <BR>Having been
modified by Research Dept, one of them could be switched to play back at
half speed, producing a picture of 405 lines at half the normal frame
rate. The displayed picture was then optically converted using a vidicon
camera pointing at a specially modified monitor. This was used to
transmit the first “Slow Motion” playbacks for sporting events around
June ’64. (Grand National) <BR>Another, was severely modified by
Designs Dept to produce the notorious Slow Motion machine which
eventually was installed at Lime Grove. The tape transport was modified
to play one field of a picture normally, store it on a very large
diameter floppy disk, playing back from it a repeat whilst the tape was
moved back using mechanically reciprocating arms ready to play the next
field. Thus, half speed playback was obtained without the quality loss
of optical conversion. This was used around July ’66 until July’68 when
it was replaced by the HS 100. <BR>The third machine was used by
Research and Designs to develop the 625 line High Band recording system
in conjunction with AMPEX which allowed, eventually, successful direct
colour recording. The machine was never used operationally, but led to
the production of the AMPEX VR 2000 machine.</P>
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<DIV><BR></DIV>
<DIV><BR><BR>
<DIV>Ted</DIV>
<DIV><BR></DIV>Sent from my iPhone
<DIV>(530) 301-2931</DIV>
<DIV>Skype: tedlangdell</DIV>
<DIV>iChat: flashscan8us</DIV></DIV>
<DIV><BR>On Nov 13, 2011, at 9:29 PM, Chill315@aol.com wrote:<BR><BR></DIV>
<DIV></DIV>
<BLOCKQUOTE type="cite">
<DIV><FONT color=#000000 size=2 face=Arial>
<DIV>A teaser question.</DIV>
<DIV> </DIV>
<DIV>Who knows what quad was developed for slow motion playback?</DIV>
<DIV> </DIV>
<DIV>Hints:</DIV>
<DIV>Fully transistorized.</DIV>
<DIV>Had a fixed ratio of one fifth speed.</DIV>
<DIV>Developed for an Olympics. Which one is a bonus point.</DIV>
<DIV> </DIV>
<DIV>Answer with photos and technical description later this week.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV>WA8IGN</DIV></FONT></DIV></BLOCKQUOTE>
<BLOCKQUOTE type="cite">
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