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<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,
dwnorwood@digitrakcom.com writes:</DIV>
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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><FONT size=3></FONT> </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><FONT size=3></FONT> </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><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Don Norwood<BR>Digitrak Communications, Inc.<BR><A
title=http://www.digitrakcom.com/
href="http://www.digitrakcom.com/">www.digitrakcom.com</A></FONT></DIV><BR><BR>______________________________________________<BR>Please
trim posts to relevant info when replying.<BR><BR>Change subject to reflect
thread direction.
Thanks.<BR>_______________________________________________<BR><BR>Send
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