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<DIV>Apparently you don't need recapping at all Guy! The record amps did
have tubes in the VR-2000, 3 in each channel!</DIV>
<DIV> </DIV>
<DIV>Don</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=quadruplex@verizon.net href="mailto:quadruplex@verizon.net">Guy
Spiller</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> Thursday, February 10, 2011 8:47
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [QuadList] VTR introduction
anniversaries: 1965</DIV>
<DIV><BR></DIV>I seem to remember the VR-2000B that I worked with back in the
day, also had tubes in the four record amps....similar to the early
TR-70s. <BR>Seems like those big tube record amps were one of the major
differences between a 1200 and a 2000.<BR>But, then again, my memory may need
recapping.<BR>Guy<BR><BR>On 2/10/2011 8:39 AM, <A
class=moz-txt-link-abbreviated
href="mailto:Chill315@aol.com">Chill315@aol.com</A> wrote:
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<DIV>I got the brains working a little better.</DIV>
<DIV> </DIV>
<DIV>The tubes in the VR-2000 were in the Mark 10 head pre-amp. These
were the four Nuvistors. Don't see those any more. The manual
that came with my 1200 talked about shorting bars in the head pre-amp to
reduce the gain. I have no idea how that worked.</DIV>
<DIV> </DIV>
<DIV>There TR-70 had a modification kit for the machine to replace a
tube driver in the record amps. It was something I remember the U of M
Dental school operator showed me. </DIV>
<DIV> </DIV>
<DIV>Those were the only tubes that I am aware of other than the scope and
monitors in the units. </DIV>
<DIV> </DIV>
<DIV>The audio was transistorized as stated in another reply. There
were several modification bulletins for this part of the machine.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV>WA8IGN</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 2/9/2011 11:12:09 P.M. Eastern Standard Time, <A
class=moz-txt-link-abbreviated
href="mailto:park@videopark.com">park@videopark.com</A> writes:</DIV>
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