Skip to main content

Hi all,

I have a second loop of track that I am going to use to run some traditional O trains I have. One of these is an old 4-6-4 hudson junior with railsounds tender. I have run this train on my main layout (now occupied by a few Legacy engines) with no sound issues. On this new ring of track, while the engine pulls just fine with no interruptions, the railsounds regularly cut out momentarily before coming back on briefly, then cutting out again, etc. If the train is in neutral, the engine plays the idle sounds and whistle/bell just fine.

To make sure the tender actually still worked and nothing had gone kaput while the guy was on the shelf, I took just the tender and pulled it behind another train on the main layout to see if things worked correctly. Chuff sounded just fine. I also ran a plain Lionchief loco (diesel) on the problem layout, its sounds were just fine.

The second small layout is powered with a very old CW-80, while the main layout uses a GW-180. The CW-80 light does not blink when running the train, so I am inclined to think it could be a track issue, but I'm stumped as to what it could be. I'm only using O36 curves and 10" straights, no fancy tricks here (yet!). Any thoughts? Thanks for considering!

Original Post

Replies sorted oldest to newest

The mystery deepens...

Over the weekend I thought I'd run the train again and to my surprise the problem, while still present, was greatly reduced. Tonight I ran again and had the same original issue. I tried cleaning the track but to no significant effect. I took my Legacy engines off my main layout to run just the hudson junior, sounded like a champ except when running over switches. Ran a different LionChief loco - this time a steamer - on the second layout and it, like the LC diesel, ran fine. I am 100% stumped.

Actually, I may know what is happening.  I'm guessing the locomotive runs at a pretty low throttle setting,  The Railsounds board in the tender may be right on the edge of it's low voltage threshold.  If you add a couple diode pairs in series with the motor on the problem locomotive, it'll allow it to run slowly at a higher voltage setting.  I'll bet that will solve the problem.

@0-Gauge CJ posted:

That just might be it - the hudson junior is a speedy little guy so I keep the voltage down to around the 30-40 mark. Thank you for sharing your expertise John, it's truly incredible how much you know and share on here!

My vote is still for the voltage being too low for the RS boards.  I had to apply the diode fix to a couple of smaller locomotives over the past couple years to get reliable operation of the sound at low speeds.  It's simple to verify, give that engine a load to haul so you need more voltage for it to run at the same speed, and see if the sound issues are gone.

Add Reply

Post
×
×
×
×
Link copied to your clipboard.
×
×