[QuadList] TBC

[Guy Spiller]

I have thought about coming out of the RCA mono ATC into an external TBC 
for several years, as I had felt that the color ATC was probably the 
weakest part of the system as far as video performance....at least in my 
TR-70A.
Since I now have these 70Cs up and running to compare, I have noticed 
quite an improvement in the performance of the entire playback system 
relative to the 70A.  It's a fair comparison as all of them have the RCA 
equivalent of Ampex's Vel Comp and AutoChroma....CAVEC.
I still have some curiosity about what an Ampex Zeus TBC would do fed 
with the output of the mono ATC....so easy to do, that I'm somewhat 
embarrassed that I haven't done it yet.  This discussion just may get me 
motivated to try it.
Maybe another YouTube video might be in order....
Guy

Chill315 at aol.com wrote:
> The RCA machine did use the servo to keep the video in the center of 
> the TBC window.  Ampex did it a different way.  Thus I always found 
> the Ampex method easier to keep running.  The feed back loops in the 
> RCA had you scratching your head every now and then.
>  
>
> Chris Hill
> WA8IGN
> ------------------------------------------------------------------------
>
> _______________________________________________
>   

-- 
Guy Spiller
email: quadruplex at verizon.net
phone: (804) 379-2050
website: www.GuySpiller.com
Midlothian, VA