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November '13
This page describes work accomplished on the new TMRC layout during the month of November 2013, as taken from the descriptions posted to the club mailing list.
November 3

We had a journalism student from BU come over and take some pictures a while back - here are the results! All photo credits to Poncie Rutsch

Discussions continue as to how to proceed with the track laying on the second level
Chemical plant progress from above
Another TNP freight leaves the yard on its way to another delievery
More tree making!


November 10

John P has made a new control box for the Berkmannville lights (See January 2013 report etc). It has a 3-position switch (obained from the junk box at MITERS next door) which is labeled "ON", "LAYOUT" and "OFF". In the LAYOUT setting, the lights come on with layout power. This is done by switching the AC input to the power supply that feeds the lights using a solid-state relay.
Computer-Aided Design drawing of the trackwork in the paper mill area. Yes, there is a proposal for a turnout with a track going through it. Not a common formation, but it has been done.


November 20

An apparent problem occured where one of the switch cards wasn't getting an address match pulse, and John P had to take the oscilloscope out on location, along with the circut diagram--yes, we have documentation! And then (of course) the problem proved to be elsewhere, in the cable.
In preparation for the upcoming Open House, Prajwal ran some trains.
There were a few problems, but he doesn't seem to be dismayed.
John P obtained some 1.4 and 1.6mm diameter screws for work on mechanisms, like turnout linkages.



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Tech Model Railroad Club of MIT
MIT Room N52-118
265 Massachusetts Avenue
Cambridge, MA 02139

+1 617 253-3269
x3-3269 (on campus)
Email: tmrc-web@mit.edu
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