Trains.com

Advice on power supply for new Legacy system

346 views
4 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    October 2020
  • 13 posts
Advice on power supply for new Legacy system
Posted by RickO45 on Tuesday, November 9, 2021 5:01 PM

Hello,

I would like to upgrade to Legacy but am unsure whether I need a new power supply. I started a year ago with a basic Lionel Polar Express and have been happily expanding since. SCRAM says I now have about 160 feet of track or so. I got a used CW80 and have left it set to full output. There is a 14 guage bus wire with 18 guage feeders every few feet. I am currently running LionChief and LionChief 2.0 engines, often two at a time, occasionally three (but that gets a bit crazy!). Performance is ok. Doubt I will ever run an engine requiring a conventional transformer.

I saw a youtube video showing a Legacy hookup to a CW80 and he indicated it worked fine. But I have a feeling I am at the limit of the CW80 and perhaps should go to the 180 watt powerhouse. Or is that overkill? Also I am now concerned about shorts affecting the Legacy electronics. My assistant engineers are 3 1/2 and 5 so derailments do happen. So far I don't think I've fried any thing but the Legacy is a big investment for me so I'd like to do it right.

Thanks for reading. Thanks for any advice!!

  • Member since
    December 2001
  • From: Austin, TX
  • 10,041 posts
Posted by lionelsoni on Tuesday, November 9, 2021 9:43 PM

The single best thing you can do to protect modern toy-train electronics is to install transient voltage suppressors (TVSs).  Google "TVS" for the details.

Bob Nelson

  • Member since
    March 2013
  • 503 posts
Posted by BigAl 956 on Friday, November 12, 2021 12:29 PM

From your description I think you could use a bit more wattage. A properly serviced ZW, with TVS diodes would meet your needs. Legacy can work with any power source. It has a single wire that attaches to the outside rail, (U) connection.

  • Member since
    December 2001
  • From: Austin, TX
  • 10,041 posts
Posted by lionelsoni on Saturday, November 13, 2021 3:56 PM

Some Lionel transformers are meant to have the U terminal connected to the outside rails, some to the center rail.

Bob Nelson

  • Member since
    October 2020
  • 13 posts
Posted by RickO45 on Monday, November 22, 2021 7:00 PM

Thanks for your reply. I ended up putting in the Lionel 180 watt PowerHouse with the Lockon. Things work fine. Looking forward to adding Legacy control.

Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.

Search the Community

FREE EMAIL NEWSLETTER

Get the Classic Toy Trains newsletter delivered to your inbox twice a month