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<DIV><FONT size=3>Some additional Mark Ten trivia.............</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>In addition to the variations that Chris describes, there
were different tip widths too! All of the possible combinations of bearing
type, preamp, and tip width as well as new or rebuilt, were indicated by unique
dash numbers, so there were a lot of them and some were 3 digits! The base
number is 1800705 and that was generally all that was on the name plate.
The dash number appeared on the case label along with the serial number.
If the head in question is a rebuilt 10 mil, air bearing, nuvistor, then it is a
-049. When new it would have been -04. </FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Dash numbers up through -199 were all 5 and 10 mil
heads. Dash numbers starting at -200 were 15 mil heads. In
1983, prices for new ball bearing heads were $3,750 while air bearing
versions were $5,050, all regardless of preamp type. </FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Don Norwood<BR>Digitrak Communications, Inc.<BR><A
href="http://www.digitrakcom.com">www.digitrakcom.com</A> </FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=Chill315@aol.com href="mailto:Chill315@aol.com">Chill315@aol.com</A>
</DIV>
<DIV><FONT size=3></FONT><BR></DIV><FONT id=role_document color=#000000 size=2
face=Arial>
<DIV>The Mark X was a family of heads. There were air and ball bearing
versions. The head was used on three different types of machines.
The VR-2000 was the first, then the VR-1200 and VR-1100 also used it.
The pre-amp module was different for each series of machines. The 2000
got the Nuvistor pre-amp. The VR-1200 got the transistor pre-amp and the
VR-1100 had a non pre-amp that used a trim module. So it was the same
head, just a different module.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 12/7/2011 10:47:26 P.M. Eastern Standard Time,
john@jmit.com.au writes:</DIV>
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<DIV dir=ltr align=left><SPAN class=859174403-08122011><FONT color=#0000ff
size=2 face=Arial>I used a version of the Mk X on a VR1100 with ball
bearings instead of air - was this a separate mark no. we also used Mk III
and IV on this machine as well - hard to remember circa
1975-76.</FONT></SPAN></DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B>
quadlist-bounces@quadvideotapegroup.com
[mailto:quadlist-bounces@quadvideotapegroup.com] <B>On Behalf Of </B>C. Park
Seward<BR><B>Sent:</B> Thursday, 8 December 2011 10:18<BR><B>To:</B> Quad
List<BR><B>Subject:</B> Re: [QuadList] Mark X on Ebay<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>And the big question... What condition are the heads???<BR><BR>
<DIV>Best,</DIV>
<DIV>Park</DIV>
<DIV><BR></DIV>Sent from my iPhone
<DIV>818-535-2747 cell</DIV>(541) 476-6657 hm
<DIV>2" and 1" video transfers</DIV></DIV>
<DIV><BR>On Dec 7, 2011, at 1:33 PM, <A title=mailto:Chill315@aol.com
href="mailto:Chill315@aol.com">Chill315@aol.com</A> wrote:<BR><BR></DIV>
<DIV></DIV>
<BLOCKQUOTE type="cite">
<DIV>
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<DIV>There is a Mark X with the nuvistor pre-amp available on eBay.
</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV></FONT></DIV></BLOCKQUOTE>
<BLOCKQUOTE type="cite">
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