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<DIV><FONT size=2 face=Arial>Yep... we have some of the Green tape .5
<STRONG><FONT size=3>Chromium</FONT></STRONG> oxide was made by
3M but no more!! </FONT></DIV>
<DIV><FONT size=2 face=Arial>Tony</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial><A
href="http://www.videomagnetics.com">http://www.videomagnetics.com</A></FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=park@videopark.com href="mailto:park@videopark.com">C. Park
Seward</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=quadlist@quadvideotapegroup.com
href="mailto:quadlist@quadvideotapegroup.com">Quad List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, January 22, 2010 3:12
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [QuadList] heads and wear</DIV>
<DIV><BR></DIV>I saw a special "burnisher" tape used at the Ampex factory.
After making the 1" heads, they were put in a scanner and this special,
diamond impregnated tape was run through the machine to contour the heads.
<DIV><BR></DIV>
<DIV>Never saw a 2" cleaning tape. Maybe it was to burnish new heads.<BR>
<DIV><BR></DIV>
<DIV>Also, head wear was a big topic at the start of the 1" days. Some
manufacturers had different thoughts about how abrasive to make the tape. I
was told that Sony was a little more abrasive due to a request from NHK. They
wanted to keep the heads from clogging so they wanted a little more
friction. </DIV>
<DIV><BR></DIV>
<DIV>It is always a tricky balance to make the tape rough enough to keep the
heads clean but not too rough to wear them out.<BR>
<DIV><SPAN
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class=Apple-style-span><SPAN
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class=Apple-style-span>
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style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto"
class=Apple-style-span>
<DIV
style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto"
class=Apple-style-span>
<DIV>
<DIV><BR class=Apple-interchange-newline>Best,</DIV>
<DIV>Park</DIV>
<DIV><BR></DIV></DIV>
<DIV>C. Park Seward</DIV>
<DIV>Visit us: <A
href="http://www.videopark.com">http://www.videopark.com</A></DIV><BR
class=Apple-interchange-newline></SPAN></DIV></SPAN></DIV></SPAN><BR
class=Apple-interchange-newline></SPAN><BR
class=Apple-interchange-newline></DIV><BR>
<DIV>
<DIV>On Jan 21, 2010, at 4:52 PM, <A
href="mailto:georgenann@aol.com">georgenann@aol.com</A> wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium Helvetica; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; WORD-SPACING: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"
class=Apple-style-span><SPAN
style="FONT-FAMILY: arial, arial; FONT-SIZE: small" class=Apple-style-span>
<DIV>I also remember there was a 2 inch "Cleaning Tape" made by Ampex.
It would also burnish the heads if needed. It was green. If
anyone has one, save it, it is a relic.</DIV></SPAN></SPAN><BR
class=Apple-interchange-newline></BLOCKQUOTE></DIV><BR></DIV></DIV>
<P>
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