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    <font face="Tahoma">IVC was the far superior machine ... because it
      was a totally different format.<br>
      <br>
      You'll notice the Ampex used a moving pinch roller path with
      resulting omega wrap around the drum, while the IVC used a fixed
      path and alpha wrap.<br>
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    <div class="moz-cite-prefix">On 5/16/14, 3:29 PM, <a class="moz-txt-link-abbreviated" href="mailto:COURYHOUSE@aol.com">COURYHOUSE@aol.com</a>
      wrote:<br>
    </div>
    <blockquote cite="mid:b2654.4eda9f0a.40a7c109@aol.com" type="cite">
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        <div>ok! then ivc is  not   type  A</div>
        <div>it is its own   format  huh?</div>
        <div>(In at case I hope  it was really  done on somethin else
          than an IVC!)</div>
        <div>Ed#</div>
        <div> </div>
        <div> </div>
        <div>
          <div>In a message dated 5/16/2014 12:25:34 P.M. Mountain
            Standard Time, <a class="moz-txt-link-abbreviated" href="mailto:dave@zfx.com">dave@zfx.com</a> writes:</div>
          <blockquote style="BORDER-LEFT: blue 2px solid; PADDING-LEFT:
            5px; MARGIN-LEFT: 5px"><font style="BACKGROUND-COLOR:
              transparent" color="#000000" face="Arial" size="2"><br>
              <br>
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              <div dir="ltr">
                <div>Any tape made on an IVC 1" machine will definitely
                  not play on an Ampex 5100...<br>
                </div>
                completely different format, head drum size, #heads,
                tape speed, etc etc etc.<br>
              </div>
              <div class="gmail_extra"><br>
                <br>
                <div class="gmail_quote">On Fri, May 16, 2014 at 3:20
                  PM, <span dir="ltr"><<a moz-do-not-send="true"
                      title="mailto:COURYHOUSE@aol.com"
                      href="mailto:COURYHOUSE@aol.com" target="_blank">COURYHOUSE@aol.com</a>></span>
                  wrote:<br>
                  <blockquote style="BORDER-LEFT: #ccc 1px solid;
                    MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
                    class="gmail_quote"><br>
                    <br>
                    <div style="FONT-FAMILY: Arial; COLOR: #000000;
                      FONT-SIZE: 10pt"><font color="#000000"
                        face="Arial">
                        <div>Don  -  Well if  we never getting it 
                          working that is ok too as  we have an  Ampex
                          camera that is a nice  match for it...  the 
                          TelePrompTer   1 inch  tape   was  supposedly
                          done    on a IVC  so we  will try that. </div>
                        <div>If it  works that is  great as we  have no
                          budget for outside services   to  convert it!
                          So  fingers are  crossed! </div>
                        <div>Ed#</div>
                        <div> </div>
                        <div> </div>
                        <div>
                          <div>In a message dated 5/16/2014 11:41:05
                            A.M. Mountain Standard Time, <a
                              moz-do-not-send="true">dwnorwood@digitrakcom.com</a>
                            writes:</div>
                          <blockquote style="BORDER-LEFT: blue 2px
                            solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><font
                              style="BACKGROUND-COLOR: transparent"
                              color="#000000" face="Arial"><br>
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                              <div><font size="3">I agree with many of
                                  the comments on this thread, and to be
                                  sure, the answer to Ed's question
                                  comes with many qualifiers.  The
                                  primary reason that we use VPR-7900's
                                  for recovery of Type-A tapes is their
                                  ability to handle all three variants
                                  of the format's carrier frequencies. 
                                  I believe the 5100 is low band only
                                  which was intended only for black and
                                  white, but since the Ampex format was
                                  direct record, you can still recover
                                  color from the lowband tapes if they
                                  contain color material.  Obviously not
                                  the best situation, but possible. 
                                  Tapes recorded in hi-band or
                                  very-high-band will not reproduce
                                  properly on a low-band machine.</font></div>
                              <div> </div>
                              <div><font size="3">Regarding interchange,
                                  there's no doubt that the movable
                                  guides were a bad design.  However,
                                  our experience has shown that many of
                                  the interchange problems were the
                                  result of incorrect adjustment of the
                                  machines more often than "naturally
                                  occurring" changes in the guide path. 
                                  Because this was originally a
                                  "non-broadcast" format, much of its
                                  use was in educational or industrial
                                  applications, and generally with
                                  un-trained operators.  My favorite
                                  example was a tape we received from a
                                  large university.  It begins with no
                                  video, but on the audio track, you
                                  hear "Hey Bill, how do you work this
                                  thing?".  Then the machine was
                                  obviously stopped, and when it was
                                  re-started, there was video, recorded
                                  with a setup level of about 70%!  </font></div>
                              <div> </div>
                              <div><font size="3">The challenges of
                                  recovering Type-A tapes can be
                                  significant, and we have even done
                                  custom modifications when required for
                                  special problems if the budget was
                                  available.  When the tapes are good,
                                  the quality, especially from the VHB
                                  tapes can be excellent, but that is
                                  certainly the exception rather than
                                  the rule.  Bottom line is, we're
                                  talking about a format developed in
                                  the mid 60's, and a lot has changed
                                  since then!</font></div>
                              <div> </div>
                              <div><font size="3">Don Norwood<br>
                                  Digitrak Communications, Inc.<br>
                                  <a moz-do-not-send="true"
                                    title="http://www.digitrakcom.com/">www.digitrakcom.com</a></font></div>
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                -- <br>
                Dave Sieg<br>
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