Recent Posts

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Finished RailPro Installation Examples / Atlas O Scale SW8 / SW9 3R to 2R
« Last post by TJMac on Today at 05:27:45 PM »
Atlas O scale SW8/SW9 - Started life as a 3R from the early 2000s purchased used on the eBay.

- Removed all factory electronics


- Created speaker mount / grill to relocate added SoundTraxx 28mm speaker to the fuel tank


- Created a tray / mount for the LM-5S-G


- Built a wiring harness with Deans Micro plugs  to make working on / repair easier


- Created pickup holders to use Northwest Short Line 1.7" brass pickups as these parts are not available from Atlas



- Used Northwest Short Line 2R conversion axles / wheels / gears

- Swapped incandescent headlight bulbs with LEDs

Currently working on fixing the pilots to make them more prototypical
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RailPro Specific Help & Discussion / Re: Where to buy RailPro
« Last post by sieggs1 on July 11, 2026, 10:56:21 AM »
Hey All,

Anyone buy any RailPro equipment lately? I am looking for more LM-3S-21 decoders but it seems like only RailPro is stocking them these days. I don't really want to pay full price.

Sieggs
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RailPro Specific Help & Discussion / Re: Outputs for smoke units
« Last post by loco_man4449@hotmail.com on July 10, 2026, 10:19:46 AM »
Thank you
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RailPro Specific Help & Discussion / Re: Outputs for smoke units
« Last post by gregeusa on July 06, 2026, 05:01:39 PM »
The question you need to ask, what is the current limit on those outputs?

And you need to decide how you want to run the USAT smoke unit.

Depending on the configuration you can pull an amp with them... I doubt the RP module has that ability.
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RailPro Specific Help & Discussion / Outputs for smoke units
« Last post by loco_man4449@hotmail.com on July 02, 2026, 09:05:49 PM »
I will be doing my first Rail Pro install. This is in a USA trains GP40 using a LM-5S-G. Can anyone tell me if outputs 7 and 8 can be turned on and off? I know smoke units take a lot of juice and shorten runs using batteries. Most likely will very rarely if ever use smoke, but would like to configure anyway.

Thanks in advance
Tom
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General Discussion / Sounds Stop Working
« Last post by rsmproductions on June 30, 2026, 06:49:33 PM »
I've had an issue recently where i'll be running an engine with the chuff and other sounds with no issue.  After awhile and especially it seems if I introduce another engine programmed in the same controller that the sounds stop functioning.  Not sure what might be causing this.  Anyone else had an issue like this?

Richard
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They make small speakers with a Arched sound box you could mount up under the roof of the cab.

Streamlined Backshop has them ....

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You might also consider removing the housing from the LM-3S-21
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Finished RailPro Installation Examples / Re: Walthers 2026 SW1... LM-3S-21 too big...
« Last post by cws on June 29, 2026, 07:55:56 PM »
Excellent suggestions, I'll do some homework and maybe give it a try.

Fortunately, I have a spare 3S!  off to eBay to find an iPhone 4 speaker...

thanks!

Carl
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