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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:
<blockquote cite="mid:16494e.3170d283.3a85447f@aol.com" type="cite">
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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>
<blockquote style="border-left: 2px solid blue; padding-left:
5px; margin-left: 5px;"><font style="background-color:
transparent;" color="#000000" face="Arial" size="2">
<div>Did the audio in the 2000 use tubes?<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 Feb 9, 2011, at 7:19 PM, <a moz-do-not-send="true"
title="mailto:Chill315@aol.com"
href="mailto:Chill315@aol.com">Chill315@aol.com</a>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div><font color="#000000" face="Arial" size="2">
<div>I remember </div>
<div> </div>
<div>Also If I remember, the VR-2000 used tubes in
the record drivers. I never got a chance to look
at the books.</div>
<div> </div>
<div>Visual sold a lot of stuff that was made up of
other manufactures put together into a package for
the US.</div>
<div> </div>
<div>Chris Hill</div>
<div>WA8IGN</div>
<div> </div>
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<pre class="moz-signature" cols="72">--
Guy Spiller
email: <a class="moz-txt-link-abbreviated" href="mailto:quadruplex@verizon.net">quadruplex@verizon.net</a>
phone: (804) 379-2050
website: <a class="moz-txt-link-abbreviated" href="http://www.GuySpiller.com">www.GuySpiller.com</a>
Midlothian, VA</pre>
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