@H1000 posted:Just a curious question for @gunrunnerjohn, would this be a candidate for a YLB to workaround and fix the problem?
One can spend lots of time, troubleshooting and repairing this when a self-charging component like the YLB could be a potential solution.
Like Vernon says, I don't know that the grounds work out without looking. The YLB depends on either frame ground or a diode between frame ground for it's negative reference. I designed the board with all versions of Lionel Railsounds board specifically in mind. Without analyzing the charging circuit, I don't know if that board meets that requirement