I am seeing conflicting info across user different Lionel and O gauge groups related to troubleshooting two of my transformers. Please share your thoughts what is possible repair solution.
In all cases, wire U (hot?) post is connected to center rail and wire A (common ?) posts are connected to outer rail. These are modern locomotives.
Modern CW80 - bell button operates whistle, whistle button no effect. Separate Accessory voltage varies with throttle as indicated by 022 switch lights.
Vintage LW - whistle button does not activate whistle. Whistle button gives loco a power boost. Throttle works normal. Accessory powers 022 switches.
If I could I would use CW80 to run loco and use LW to powers switches. Is it OK to have shared common çonnected to different transformers ?
The conflicting info relates to center outer rail connecting to U A or A U for modern vs vintage and one user specifically stated LW transformer was different than other lionel transformers.