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Old 03-14-2019, 09:59 AM   #1
nrscroller
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Join Date: Dec 2018
Posts: 69
2 older Atlas engines need simple decoders

Hi
I have 2 older Atlas diesels that have old soundtraxx decoders in them and they just don't do well on my layout. I got these on craigslist years ago with the sound in them. The GP-38 is a dual mode and I have the original board with a 4 pin plug in it plugged into a 6 spit spot. Can I just wire that back in and it should run on DCC?
My Gp-40 I also have the original board for that and it has a a 8 pin dummy board plugged into the board in that I see, so I can just buy a digitrax decoder and plug that in for that one? I like the digitrax because they have that switching mode you can use as I run a switching layout.
Both engines are in nice shape and I would like to be able to use them on the layout.
Thanks
Bill.

Last edited by nrscroller; 03-14-2019 at 10:27 AM.. Reason: change text
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Old 03-14-2019, 11:14 AM   #2
J.Albert1949
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Join Date: Feb 2018
Location: Connecticut
Posts: 424
I just added an older (2010) run Atlas GP40-2 to my collection about two weeks ago. The light board had an 8-pin dcc plug, so I added a Digitrax DH126PS (short connecting cable) which plugged right in and the engine runs smoothly and quiet.

From the looks of it, the GP38 -does not- have an 8-pin plug, right?
Would a TCS A6x fit the GP38?
See:
https://www.trainworld.com/manufactu...adj-low-volta/
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Old 03-14-2019, 11:15 AM   #3
J.Albert1949
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Last edited by J.Albert1949; 03-14-2019 at 12:38 PM..
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Old 04-13-2019, 09:56 AM   #4
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Join Date: Feb 2019
Location: Wisconsin
Posts: 9
Scales Modeled: HO
Atlas Decoder

Atlas may still offer simple DCC decoders that are basically replacements for the original light boards. A real simple exchange, but you should solder the wires to the tabs. The decoder number is #342.

Greg
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