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    Sounds like it resembles the way a high band recording plays in low
    band mode.  Is the recording possibly super high band?<br>
    <br>
    On 8/1/2011 5:11 PM, lee williams wrote:
    <blockquote
      cite="mid:1312233117.66819.YahooMailClassic@web37905.mail.mud.yahoo.com"
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              <div>Hello Larry, </div>
              <div> </div>
              <div>Sorry but not the problem, </div>
              <div> </div>
              <div>The closest thing I can describe the effect is white
                streaks with analog snow in them trailing out like a
                comet tail from the trailing edge of anything white in
                the picture. </div>
              <div> </div>
              <div>No digital blocks, Not a head clog. <br>
              </div>
              <div>Thanks. </div>
              <div> </div>
              <div>Lee </div>
              <div> </div>
              <div><br>
                --- On <b>Sun, 7/31/11, LARRY <i><a class="moz-txt-link-rfc2396E" href="mailto:leodham@centurylink.net"><leodham@centurylink.net></a></i></b>
                wrote:<br>
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                From: LARRY <a class="moz-txt-link-rfc2396E" href="mailto:leodham@centurylink.net"><leodham@centurylink.net></a><br>
                Subject: Re: [QuadList] <span>AVR</span> 3 heads
                question<br>
                To: "Quad List" <a class="moz-txt-link-rfc2396E" href="mailto:quadlist@quadvideotapegroup.com"><quadlist@quadvideotapegroup.com></a><br>
                Date: Sunday, July 31, 2011, 6:58 AM<br>
                <br>
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                    <div>Hello Lee,</div>
                    <div> </div>
                    <div>I have been following some of the
                      back-and-fourth e-mails on your tape playback
                      trouble.</div>
                    <div>Here is my two cents worth:</div>
                    <div> </div>
                    <div> I have experienced this problem before.</div>
                    <div>The video is tearing in what looks to be square
                      blocks? right??</div>
                    <div>I have encountered that very same effect here
                      on a VR-1200b. It was caused here by the playback
                      equalization. A good way to verify if this is the
                      problem is to go to manual equalization, and turn
                      down(reduce) the EQ one channel at a time. If you
                      see an improvement, then stop the machine,
                      unthread the tape, and look with a magnifier at
                      the drum surface behind each head tip(trailing
                      surface). You may find a small build-up of
                      black-looking stuff behind one, or all, of the
                      head tips on the drum edge surface itself. </div>
                    <div>This build-up increases the diameter of the
                      head drum just enough to decrease tip penetration
                      at the head.</div>
                    <div>Usual cleaning of the tips will not remove this
                      buildup. Alcohol and a fingernail will.
                      CAREFULLY!!</div>
                    <div> </div>
                    <div> OK, hope this helps,</div>
                    <div>larry<br>
                      ----- Original Message -----<br>
                      From: "lee williams"
                      <a class="moz-txt-link-rfc2396E" href="mailto:lasvegastvengineer@yahoo.com"><lasvegastvengineer@yahoo.com></a><br>
                      To: "Quad List"
                      <a class="moz-txt-link-rfc2396E" href="mailto:quadlist@quadvideotapegroup.com"><quadlist@quadvideotapegroup.com></a><br>
                      Sent: Sunday, July 31, 2011 12:24:33 AM<br>
                      Subject: Re: [QuadList] AVR 3 heads question<br>
                      <br>
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                            <div>Hello, </div>
                            <div>Answers below questions. </div>
                            <div> </div>
                            <div><br>
                              <br>
                              --- On <b>Sat, 7/30/11, <a class="moz-txt-link-abbreviated" href="mailto:Chill315@aol.com">Chill315@aol.com</a>
                                <i><a class="moz-txt-link-rfc2396E" href="mailto:Chill315@aol.com"><Chill315@aol.com></a></i></b>
                              wrote:<br>
                            </div>
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                              rgb(16,16,255) 2px solid; PADDING-LEFT:
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                              From: <a class="moz-txt-link-abbreviated" href="mailto:Chill315@aol.com">Chill315@aol.com</a>
                              <a class="moz-txt-link-rfc2396E" href="mailto:Chill315@aol.com"><Chill315@aol.com></a><br>
                              Subject: Re: [QuadList] AVR 3 heads
                              question<br>
                              To: <a class="moz-txt-link-abbreviated" href="mailto:quadlist@quadvideotapegroup.com">quadlist@quadvideotapegroup.com</a><br>
                              Date: Saturday, July 30, 2011, 9:38 AM<br>
                              <br>
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                                  id="yiv981461483role_document"
                                  color="#000000" face="Arial" size="2">
                                  <div>Lee</div>
                                  <div> </div>
                                  <div>How does the RF envelope look on
                                    the scope?</div>
                                  <div>No Scope - I can tell I have
                                    plenty of RF with my tracking
                                    adjustment. </div>
                                  <div> </div>
                                  <div> </div>
                                  <div>How is Vertical lining up with
                                    house?</div>
                                  <div>AVR3 is on internal generator. No
                                    difference if I hook up a black
                                    source to the machines. </div>
                                  <div> </div>
                                  <div> </div>
                                  <div>Do you have an alignment tape? 
                                    If so, how does it play and where is
                                    the tracking knob?</div>
                                  <div>Alignment and known good tapes
                                    play fine. </div>
                                  <div>Client has several thousand tapes
                                    made in the early 80's (probably on
                                    a VR2000) </div>
                                  <div> </div>
                                  <div>Are you using manual or auto
                                    tracking?</div>
                                  <div>Manual normally.  No difference
                                    in auto. </div>
                                  <div> </div>
                                  <div>30 lines of black may be that you
                                    are one or two head passes off in
                                    the vertical realm.  The tearing may
                                    be due to the fact that you can not
                                    get the head centered on the track
                                    perfectly.  </div>
                                  <div> </div>
                                  <div>The head assemblies are made so
                                    good that they meet SMPTE
                                    specifications with in a few hairs. 
                                    This is to create interchangeability
                                    between machines.  </div>
                                  <div> </div>
                                  <div>I would not touch the heads in
                                    any way as you will destroy the
                                    interchange.  It is a critical
                                    factor.  If you saw the recent slide
                                    show on here, you see the great deal
                                    of care taken to make a head.</div>
                                  <div> </div>
                                  <div>Now the tape you have may have
                                    been done in a non standard method. 
                                    That is why all the questions.  </div>
                                  <div> </div>
                                  <div>I always assume that the tape was
                                    poorly made.  Many operations did
                                    not do best practices and thus there
                                    is a lot of poorly made tapes.  </div>
                                  <div> </div>
                                  <div>I know it's the tape that is off.
                                    (several thousand of them) </div>
                                  <div>Now how do I get them transferred
                                    short of sending in the weak head to
                                    the rebuilder and have him duplicate
                                    the deviation were the head is off
                                    of true? </div>
                                  <div> </div>
                                  <div>Chris Hill</div>
                                  <div>WA8<span>IGN</span></div>
                                  <div> </div>
                                  <div>
                                    <div>In a message dated 7/30/2011
                                      11:56:38 A.M. Eastern Daylight
                                      Time, <a class="moz-txt-link-abbreviated" href="mailto:lasvegastvengineer@yahoo.com">lasvegastvengineer@yahoo.com</a>
                                      writes:</div>
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                                                Hay all, <br>
                                                Have a good one here ???
                                                <br>
                                                <br>
                                                AVR3 Mark XV heads. <br>
                                                <br>
                                                Have some 2" tape that
                                                when you try to pull it
                                                through the machine will
                                                will give you something
                                                that looks like video
                                                tearing in the whites
                                                and slow horizontal
                                                jitter. <br>
                                                <br>
                                                If I slam the tracking
                                                all the way down, I get
                                                a very clean picture,
                                                but about 30 lines of
                                                black overhead on the
                                                screen. <br>
                                                <br>
                                                I see this on all my
                                                new(er) heads I get from
                                                both Aheadtek and
                                                VideoMagnetics. <br>
                                                <br>
                                                I have 1 very warn out
                                                head (supplier unknown)
                                                that will lock to these
                                                tapes<br>
                                                <br>
                                                Has anybody seen this
                                                before and is there a
                                                way this heads set up
                                                can be duplicated? <br>
                                                <br>
                                                Thanks <br>
                                                <br>
                                                Lee <br>
                                                <br>
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    <pre class="moz-signature" cols="72">-- 
Guy Spiller
email: <a class="moz-txt-link-abbreviated" href="mailto:quadruplex@verizon.net">quadruplex@verizon.net</a>
phone: (804) 379-2050
website: <a class="moz-txt-link-abbreviated" href="http://www.GuySpiller.com">www.GuySpiller.com</a>
Midlothian, VA</pre>
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