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Atlas 2-rail RS-1: Trains America Studios - Smoke Unit

Hi, this is my first post as a member from over the pond!

I have a US O scale DCC layout that I exhibit in the UK.  One of my locomotives is an Atlas "Pennsylvania" RS-1 that had a Lionel TMSS system. 

I am part way in the process of converting it for DCC use: have (carefully) removed the TMSS and installed DCC with sound.  Electro magnetic couplers have been replaced with standard Kadee 740s.  I found the article by Gene Clements (O Scale Trains, Sept/Oct '07 very useful).  I am now at the stage of attempting to use the TAS AC version smoke unit. 

I am looking for some guidance, if anyone can help.  I have searched for posts about this but none seem to match my requirements.  The photo below shows the Trains America Studios AC version - I have annotated it to help with replies:

1.   There are two red/black connect points A & B - can anyone help as to which would be the track feed and which could be the connect point for a DCC function;

2.   The smoke fan motor C seems to have no obvious electrical connection - fan will rotate when wires are applied to the base of the motor (3rd view C).

3.   I am trying to work out what "??" connects to?

4.   It would also be useful to know if my proposal is feasible?  By the way, I have an ESU decoder Tester that I am hoping to use, pre-installation, if that's possible.

O_Gauge_Trains_America_Studios_AC_Smoke_Unit

Any help on any of the points would be appreciated, e.g. ideas, links, manuals.

Thanks for reading this.

Dave

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Images (1)
  • O_Gauge_Trains_America_Studios_AC_Smoke_Unit: 3 perspectives of the unit
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