Hopefully someone out there has installed LEDs in the Athearn SD40s.

I have two that I'm almost finished detailing. While waiting for the dullcote to dry I started to install LEDs for the lights. The decoder I'm using is a TCS T1 as shown on the TCS website. The 1.5 volt lights worked properly prior to removal, but I can't get the LEDs to work. From everything I can understand, there are resistors on the Athearn board, so resistors on the LED installation aren't necessary. The LEDs are 3mm and work fine when tested. 

I recently got a Broadway Limited SW7 with a QSI sound decoder from an estate sale.  The engine stops periodically and starts by its self. The lights stay on so it is not losing contact and is not shorting.  The engine stops , the sound slows down, but does not stop and the in several second it will start up again and the engine sound rev up.  It is not always at the same place and seems to be independent of the speed.  Does this sound like the decoder is on the way out??

Bill Feairheller

Does anyone have a part number for the pot in the UT4 throttle?

Our club has one that has had the stop broken. I don't think it worth $25 to send it to Digitrax when I can change the pot in a few minutes.

I was using a sound equipped Atlas GP40-2W along with a sound equipped Athearn GP38-2W to pull a demonstration train during a layout tour last weekend.  There was also a non-sound decoder equipped Overland M420 being used.