[QuadList] First Tech Publication posted to website:Ampex 1021Intersync...

[Ted Langdell]

Hi, Don,

A letter from Merlin to an Ultrafurb customer indicates:

"Ann additional 12 Volt power supply is added to the machine to power  
the servo only. This reduces the lockup time and allows the original  
12 Volt supply to operate more within its range of regulation  
resulting in better signal to noise from the signal system."

I'll be posting this 1984 letter and some other Merlin stuff to the  
website later this week.

The Merlin Ultrafurb replaced the Amtec, Colortec, Proc Amp and  
Velcomp with an NEC NTC-10 TBC, "which incorporate(s) a wide range  
velocity compensator and dropout compensation. The error signal  
outputs are modified such that the operator will have simulated Amtec  
and Velocity errors for setup."

On Aug 6, 2008, at 6:59 PM, Don Norwood wrote:

> Hello Guy:
>
> I've been digging thru files this evening trying to find some  
> additional
> info for Park, and I may have found an answer to my question.  The  
> Merlin sheet on that power supply mod says "This is a precision  
> regulated power supply of modern design which will usefully enhance  
> the overall stability and the signal to noise performance of the  
> VTR".   I assume that "stability" would refer to the servo but  
> "signal to noise" leads me to think that the servo might put some  
> trash on the power supply buss that would get into the signal  
> system.  Maybe???  I still have to say that I don't notice any  
> servo improvement!
>
> Don

Ted Langdell
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