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<DIV>Hi Ted:</DIV>
<DIV> </DIV>
<DIV>We have Ampex-published track and drum specs for the Type-A NTSC machines
if you need a copy of that. Remember that 50Hz versions will be
different. Also, while track geometry was the same, if you are concerned
with implementations of the format prior to the VPR-7900, then there are also
different carrier frequencies and different control track schemes. </DIV>
<DIV> </DIV>
<DIV>I’ve searched before for references to a SMPTE specification and haven’t
found it. Have you asked Bill Carpenter about this? I’d also check
with John Turner to see what he may know about it.</DIV>
<DIV> </DIV>
<DIV>Don</DIV>
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<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=ted@quadvideotapegroup.com
href="mailto:ted@quadvideotapegroup.com">Ted Langdell</A> </DIV>
<DIV><B>Sent:</B> Monday, December 01, 2014 9:54 PM</DIV>
<DIV><B>To:</B> <A title=QuadList@quadvideotapegroup.com
href="mailto:QuadList@quadvideotapegroup.com">Quad List</A> </DIV>
<DIV><B>Cc:</B> <A title=ted@quadvideotapegroup.com
href="mailto:ted@quadvideotapegroup.com">Ted Langdell</A> </DIV>
<DIV><B>Subject:</B> Searching for SMPTE standard for Ampex Type A format video
recording</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV>Happy December 1 (as opposed to other labels for the day)</DIV>
<DIV> </DIV>
<DIV>The 1960's era Ampex 1" industrial/educational videotape format that
spawned the VR-5xxx, 6xxx and 7xxx VTRs is often referred to as "Type A"
or "SMPTE Type A" with the assertion that it became a SMPTE Standardized format
at some point.</DIV>
<DIV> </DIV>
<DIV>Searching does not turn up any references to a SMPTE Standard that seems to
apply, although one can find the SMPTE Type C helical scan standard without too
much difficulty:</DIV>
<DIV> </DIV>
<BLOCKQUOTE class=webkit-indent-blockquote
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<DIV>
<BLOCKQUOTE class=webkit-indent-blockquote
style="BORDER-TOP-STYLE: none; BORDER-BOTTOM-STYLE: none; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; BORDER-RIGHT-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px 0px 0px 40px; BORDER-LEFT-STYLE: none; PADDING-RIGHT: 0px">
<DIV style="FONT-SIZE: 12px"><A
href="http://standards.smpte.org/gca?gca=smptes;st-20-2003/1/part1&gca=smptes;st-19-2003/1/part1&gca=smptes;st-18-2003/1/part1&allch=&submit=Go">http://standards.smpte.org/gca?gca=smptes%3Bst-20-2003%2F1%2Fpart1&gca=smptes%3Bst-19-2003%2F1%2Fpart1&gca=smptes%3Bst-18-2003%2F1%2Fpart1&allch=&submit=Go</A></DIV>
<DIV> </DIV></BLOCKQUOTE></DIV></BLOCKQUOTE>
<DIV>and similarly, for Type-B (the Bosch segmented 1" helical format)</DIV>
<DIV> </DIV>
<DIV>Does anyone on the list know whether there was an actual SMPTE Standard
adopted (or even proposed) for this legacy Ampex format, and if so, what the
Standard Number is?</DIV>
<DIV> </DIV>
<DIV>For Example: </DIV>
<BLOCKQUOTE class=webkit-indent-blockquote
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<DIV>
<DIV id=book-number
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; FONT-VARIANT: normal; VERTICAL-ALIGN: baseline; WHITE-SPACE: normal; BORDER-BOTTOM-WIDTH: 0px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(64,56,56); PADDING-BOTTOM: 0px; PADDING-TOP: 8px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; LINE-HEIGHT: 16px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
<DIV id=book-number
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; FONT-VARIANT: normal; VERTICAL-ALIGN: baseline; WHITE-SPACE: normal; BORDER-BOTTOM-WIDTH: 0px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(64,56,56); PADDING-BOTTOM: 0px; PADDING-TOP: 8px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; LINE-HEIGHT: 16px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><SPAN
id=smpte-number
style="BORDER-LEFT-WIDTH: 0px; FONT-SIZE: 12px; BORDER-RIGHT-WIDTH: 0px; VERTICAL-ALIGN: baseline; BORDER-BOTTOM-WIDTH: 0px; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px"
xmlns="">ST 19:2003</SPAN></DIV>
<DIV id=book-header
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; FONT-VARIANT: normal; VERTICAL-ALIGN: baseline; WHITE-SPACE: normal; BORDER-BOTTOM-WIDTH: 0px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(64,56,56); PADDING-BOTTOM: 0px; PADDING-TOP: 5px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; LINE-HEIGHT: 16px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><SPAN
id=chapter-title
style="BORDER-LEFT-WIDTH: 0px; FONT-SIZE: 12px; BORDER-RIGHT-WIDTH: 0px; VERTICAL-ALIGN: baseline; BORDER-BOTTOM-WIDTH: 0px; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px">For
Television Analog Recording — 1-in Type C — Records</SPAN></DIV>
<DIV class=abstract-view
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; FONT-VARIANT: normal; VERTICAL-ALIGN: baseline; WHITE-SPACE: normal; BORDER-BOTTOM-WIDTH: 0px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(64,56,56); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; LINE-HEIGHT: 16px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px">
<DIV class=abstract
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; VERTICAL-ALIGN: baseline; BORDER-BOTTOM-WIDTH: 0px; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px">
<H2 id=title-2
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; VERTICAL-ALIGN: baseline; BORDER-BOTTOM-WIDTH: 0px; PADDING-BOTTOM: 0px; TEXT-ALIGN: left; PADDING-TOP: 5px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 0px 0px 0.4em; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px"><SPAN
class=Apple-style-span
style="FONT-SIZE: 12px; FONT-WEIGHT: normal">Scope</SPAN></H2>
<P id=p-1
style="BORDER-LEFT-WIDTH: 0px; BORDER-RIGHT-WIDTH: 0px; VERTICAL-ALIGN: baseline; BORDER-BOTTOM-WIDTH: 0px; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; OUTLINE-STYLE: none; PADDING-LEFT: 0px; MARGIN: 15px 0px; LINE-HEIGHT: 1.5; PADDING-RIGHT: 0px; BORDER-TOP-WIDTH: 0px"><SPAN
class=Apple-style-span style="FONT-SIZE: 12px">This standard specifies the
dimensions and location of recorded video, audio, and tracking-control records
for 1-in type C helical-scan television analog recorders operating in the
525/60 monochrome or NTSC color
systems.</SPAN></P></DIV></DIV></DIV></DIV></BLOCKQUOTE>
<DIV style="FONT-SIZE: 12px"> </DIV>
<DIV>Directions to applicable standards or proposed standards, (or such
information for "Type A" as outlined in the three Type-C documents linked to)
would be most appreciated.</DIV>
<DIV> </DIV>
<DIV>Cheers and thanks,</DIV>
<DIV> </DIV>
<DIV>
<DIV><FONT class=Apple-style-span style="FONT-SIZE: 12px">Ted</FONT></DIV>
<DIV style="FONT-SIZE: 14px"><FONT class=Apple-style-span size=3><SPAN
class=Apple-style-span style="FONT-SIZE: 12px"><BR></SPAN></FONT></DIV>
<DIV style="FONT-SIZE: 14px"><FONT class=Apple-style-span size=3><SPAN
class=Apple-style-span style="FONT-SIZE: 12px">Ted Langdell</SPAN></FONT></DIV>
<DIV style="FONT-SIZE: 14px"><SPAN class=Apple-style-span
style="FONT-SIZE: 12px">Secretary</SPAN></DIV>
<DIV><SPAN class=Apple-style-span style="FONT-SIZE: 12px">Quad Videotape
Group</SPAN></DIV>
<DIV style="FONT-SIZE: 14px"><FONT class=Apple-style-span size=3><SPAN
class=Apple-style-span style="FONT-SIZE: 12px">e-mail:<SPAN class=Apple-tab-span
style="WHITE-SPACE: pre"> </SPAN><A
href="mailto:ted@quadvideotapegroup.com">ted@quadvideotapegroup.com</A></SPAN></FONT></DIV></DIV>
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