[QuadList] Dropout Compensator

[Gary Adams]

I believe 3M built the color DOCs for RCA in that series of decks. The
TR600 type was RCA's.  Early TCRs used the 3M while later units used the
TR600 types.  

 

Gary

 

From: quadlist-bounces at quadvideotapegroup.com
[mailto:quadlist-bounces at quadvideotapegroup.com] On Behalf Of
Chill315 at aol.com
Sent: Friday, May 01, 2009 10:06 AM
To: quadlist at quadvideotapegroup.com
Subject: [QuadList] Dropout Compensator

 

Maybe someone can answer the question about who made the drop out units.


 

Ampex had the unit that was a plug in board for the VR-1200 series.
This was made by them.  It did not have the color phase inversion so you
might see the replacement.

 

3M Mimcom built the three rack unit that was installed in the VR-1200's
that I had.  It had the color inversion and even had a test generator
for it.

 

RCA had a module that plugged into the TR series units.  

 

I heard a rumor that 3M built the units for RCA.  Does anyone know?  Was
this done only for the later machines?  The early ones that I have
information for does not have the color inversion.  The early ones were
two modules wide.  The later ones that were for the TR-60 and TR-70 was
a single modules.  It had a switch on the front that stated off, mono,
and color.  There was also a color phase screwdriver pot on the front.
This is the one that I had heard was built by 3M.  

 

Chris Hill

 

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