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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Each video head records/plays 15 lines. The 15 line display (from my very distant memory) it was best used on demod out to check timebase stability, jitter, sync pulse shape and eq. Also chroma phasing/diff phase and diff gain (head by head) – although this was on colourtec out, prior to station syncs being reinserted to the video.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Do I win the prize?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Jeff<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>UK, ex BBC VT<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-GB'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-GB'> QuadList [mailto:quadlist-bounces@quadvideotapegroup.com] <b>On Behalf Of </b>Ted Langdell via QuadList<br><b>Sent:</b> 13 July 2014 19:19<br><b>To:</b> Quad List<br><b>Cc:</b> Ted Langdell<br><b>Subject:</b> [QuadList] Sunday Trivia Questions--Why is there a 15-line mode on some WFM monitors, and how is it used?--<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>