[QuadList] TBC
george keller
georgenann at aol.com
Sat Apr 30 07:16:08 CDT 2011
Thank You!! Great memory. The other one was perhaps a 516. Did you try the suppression pulse route and did it help at all with any other TBC's? I tried it with Sony TBC2000 and 1000. Try monochrome? I really had no luck to mention withe either one.
MNY TNX,
George Keller
-----Original Message-----
From: David Crosthwait <david at dcvideo.com>
To: Quad List <quadlist at quadvideotapegroup.com>
Sent: Fri, Apr 29, 2011 8:33 pm
Subject: Re: [QuadList] TBC
George,
That was the CVS 520 and the later CVS or Harris 590. Been there, done that with those boxes!
Best Regards,
David Crosthwait
DC Video
Archived Media Transfer and Re-mastering Services
Offices located at:
177 West Magnolia Blvd.
Burbank, CA. 91502
818-563-1073
818-563-1177 (fax)
818-285-9942 (cell)
DAVID at DCVIDEO.COM
WWW.DCVIDEO.COM
On Apr 29, 2011, at 3:34 PM, george keller wrote:
CVS had a DTBC it had either a 16 or 20 in it's model number which had an optional extra wired in small board mod for segmented machines. There may still be some around, but look for the board. AF put one in a 1200 D or E(?) and made it smaller than an AVR 2, you could roll it around anywhere.
I have also played wilth DTBC's and the 2000 also with no real luck. Widening out the supression pulse and moving it around showed some noticable results, but no cigar. Might not have too bad in mono, but never tried it.
George Keller
-----Original Message-----
From: Don Norwood <dwnorwood at embarqmail.com>
To: Quad List <quadlist at quadvideotapegroup.com>
Sent: Fri, Apr 29, 2011 5:53 pm
Subject: Re: [QuadList] TBC
Shai:
The design is very different. I have tried many different models, not
xpecting them to work, but just out of curiosity. NONE of them, from
lder, early generation TBC's to very modern designs will work. There are
wo main problems.....first is the different nature of the timing error
etween segmented and helical, and second is that many of the early designs
s well as later and less expensive models were not designed for use with
irect color recovery. They rely on the heterodyne processing in the VTR to
ecover the color signal, and that's the market that most of the TBC's were
esigned for.
Merlin used several different models of NEC TBC's but I believe most of them
equired some degree of modification. They also used an Adda VW-2 and an
mpex TBC-800, both with some mods . You can find info on these on our
ebsite on the Merlin Literature page.
Don Norwood
igitrak Communications, Inc.
ww.digitrakcom.com
----- Original Message -----
rom: "Shai Drori" <srdbx at netvision.net.il>
o: <quadlist at quadvideotapegroup.com>
ent: Friday, April 29, 2011 11:32 AM
ubject: Re: [QuadList] TBC
Why is that? I thought that maybe an old TBC might be able to handle this?
Has anyone tried this before? Also, what do I do with LB on an AVR-2? Ken
Zin looks very busy at the moment I doubt he'll have time for me now to
talk about his cards. Is the avr-1 and tr-70 the only multistandard
machines?
Shai
On 29/04/2011 11:00, quadlist-request at quadvideotapegroup.com wrote:
> The problem is that the TBC must be designed for segmented scan. VERY
> FEW
> ever were, and I'm not aware that any on the market today or in recent
> years
> will work for anything other than non-segmented (helical) scan.
>
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