Museum Artifact Report
SVCatITC at aol.com
SVCatITC at aol.com
Fri Oct 13 12:53:19 EDT 2017
I figured it was time, (Since the UNIVAC Pix spread was sent by Bill D.)
that I would also update us all on the progress of getting the EAI TR20
1. Progress is slow, but moving forward on getting a decent stable
in the test bed for doing integrator tray testing from our TR20.
The test bed has to undergo some major revamp to make room for more
test components to use with the main test evaluations. We are doing
revamp and fabrication here at my shops.
Reference components have been purchased and now have to be installed.
2. A master 10 volt reference, to be used for setup and maintenance of the
rack reference, as well as the test bed reference, has been purchased.
This reference is good to better than 0.02 % error, which will be 5x
than we need for computation.
3. I still need to get out to a machine shop to fabricate the wheeled
the main rack display. This will allow us to roll the rack in and out
berth for easy maintenance access.
4. Back lighting has been purchased for accent lighting on the TR20 while
the rack, as it will be in shadows when the XY plotter gets installed.
5. The TR20 main power supply oscillates at high frequency. Being an
alumnus of EAI, I fought this problem in these supplies when working
The solution has already been installed in the test bed,
(as my supply did also osc. in the bed). I have more updated parts to
install in a
duplicate 10.179 supply, which will then be installed in the TR20.
The original supply will be left untouched and be put "under
to show the workmanship to visitors. This update will also be done to
the 10 volt reference in the rack and the original rack tray be put
glass as well for viewing.
The work goes slow as I have had several "real job" work projects and
that has gotten in the way of doing this fun stuff.
I will try and give further updates as they move forward.
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