[QuadList] Anamoaly on Rockethub Page

[L.E. Odham]

The connector cover is longer on a MK XV because it is a blue ribbon 16 rather than an 8  for the MK X. 



Hey, I got a question for anyone on the list concerning the MK XV, AVR-2: 



Why wasn't there a head blower installed on the AVR-2 to cool the head motor ? 



Was it just the fact there was no more space available , or did the MK XV head not need cooling? 



I notice the transport top does have two holes drilled for cooling where the blower hose would normally connect. 



Thanks, 

Larry Odham 



Quad Tape Transfer 

www.quadtapexfer.com 



----- Original Message -----





Hi Chris: 
  
Nope, it's not the same head in all of the pictures.  The only one that's a XV is the one mounted on the machine.  The others are a Mk-X.  As I said, there's a definitive way to identify the Mk-X and the Mk-XV.  Hint.......anytime you can see either the top or the bottom of the baseplate, you can tell whether it's a X or a XV. 
  
Don Norwood 
Digitrak Communications, Inc. 
www.digitrakcom.com 
  
----- Original Message ----- 


From: chill315 at aol.com 
To: Quad List 
Sent: Wednesday, April 03, 2013 11:07 AM 
Subject: Re: [QuadList] Anamoaly on Rockethub Page 








You have answered a few questions.  The only thing is that one has to assume that it is the same head in all the pictures.   


I would agree that it is a 15 head because of the probability of any other is so small.  But if the firing squad was cleaning the rifles and loading them as I was asked the question, I would not bet the life on it. 

Chris Hill 

On Apr 3, 2013, at 10:44 AM, "Don Norwood" < dwnorwood at embarqmail.com > wrote: 


<blockquote>





<blockquote>


Hi Chris: 
  
Not certain about the VR-1000 but I have seen Mk-III heads with the manual positioner installed although they could have been for the 1100. 
  
The guide servo was not available for the VR-1100.  As you point out, the manual positioner was available for the Mk-X used on those machines, and in fact, the X was required for most of the 1100's beyond the early production units which used the Mk-III.  All later 1100's had an additional chassis with the individual channel adjustments and included a label on the deck plate stating that a Mk-X head was required. 
  
The guide servo was an option on the VR-1200, although I've not seen one without it except in catalog pictures.  The 1200E does not include a control on the operator panel, so I assume it was not offered and certainly wasn't needed for recording.  I suppose a studio machine used only for recording would have no need for one either, so maybe some 1200's were sold in that configuration. 
  
There is however, a definitive way to determine if the head shown in the pictures is a X or a XV.  Only the machine-mounted head in the next to last pic is a XV. 
  
Don Norwood 
Digitrak Communications, Inc. 
www.digitrakcom.com   
<blockquote>

----- Original Message ----- 
From: Chill315 at aol.com 



The first guess would be that the head has a manual guide adjuster on it.  This was on the Mark 15 heads.  
  
But there were some machines that may have not used the auto guide assembly.  I say this as the guide was listed as an accessory in the set of books.  
  
So does anyone know if there was a machine that did not have the electronic guide assembly in the VR-1000, 1100, or 1200 series.  How about the E models that were the low boy so called portable units?  Or the 1100's? 
  
Now Mark 10 heads could be used in earlier machines.  There was a trimmer module that replaced the nuvistor or transistor pre amp that allowed this. 
  
Chris Hill 


</blockquote>

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