[QuadList] 1200 makes pictures
Chill315 at aol.com
Chill315 at aol.com
Thu Jun 4 07:05:27 CDT 2009
I also have worked before many of the quads. The offering to the quad
gods were sometimes not accepted. Others it was readily accepted and they
started to perform beautifully.
The Ampex always impressed me more. I liked the way that they constructed
the machines. I found that RCA always seemed to just bend a piece of
metal to mount something. Or like the brake assemblies, were done in what
seemed as a constructed in what I would call a one or two make em shop. Ampex
actually took the time to build a solid brake assembly. The relays for the
TR-60 that I had were mounted in the rear on a bent piece of metal. It
seemed as an after thought. Ampex actually had a relay chassis in the rear
of the VR-1200 that made sense.
Another thing that I did not like about the RCA was the Blue Ribbon
connectors that were used. I had to clean them about twice a year as a
preventive. The other part was that the connectors had pins with crimped on wires
inserted in the back of them. These would work loose. I would go through
about every year or two and push on them when the machine would start
getting flaky. I never had a harness problem in an AMPEX machine.
The RCA modules were both harder and easier to work on. Most were hand
wired. It was easier to get to the parts with a scope once the module was on
the extender. In the AMPEX you had to put each board on the extender and
then return it. RCA sometimes had the test points on the front that was
helpful. The shovel as we called the extender for RCA took up so much room,
you had to make sure that you had the space to work. Fortunately, the
third room that had these did. The first two were difficult.
The RCA control system was built in behind the fold down door of the 4, and
60. The RCA system had a unified control system. Where the AMPEX put a
lot in the chassis. Thus it was easier for me to trace a control problem
in the AMPEX machines.
Lastly, I liked the documentation for the Ampex machines. I found that
the use of an interconnect was so helpful. RCA had the modules with the
connector only saying where the signal went or came from. Thus I had to get
out a sheet of paper and keep a lot of notes.
I started out on RCA's and then went to AMPEX. I found that my preference
was AMPEX.
Chris Hill
**************We found the real ‘Hotel California’ and the ‘Seinfeld’
diner. What will you find? Explore WhereItsAt.com.
(http://www.whereitsat.com/#/music/all-spots/355/47.796964/-66.374711/2/Youve-Found-Where-Its-At?ncid=eml
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