I acquired a pair of Soundtraxx Sierra sound boards - one a complete new-in-box system with the battery (dud by now I guess) and manuals.
They are both Sierra Diesel types, with an Eprom labelled RGS Goose and the processor labelled Sierra Diesel.
I need steam sounds, not diesel. I’m working on switching the Eprom to steam, but I suspect it won’t work, as the Diesel processor probably doesn’t have a “chuff” sensor. (And I’ll get air horns instead of a whistle!)
So - I would love to swap the units for equivalent steam sound cards. Sierra preferred as I know how to rig them, but anything considered.
Alternatively, I will sell them - how does $30 sound for a new Sierra Diesel system?