The very first TMCC GP-9's from 1996 were the 6-18562 Southern Pacific and 6-18563 New York Central. Both were numbered 2380.
Did they both have the same sounds in them? This was pre-CrewTalk and TowerCom, so you can't tell by listening to that.
I'm fairly certain the ROM chip (the bottom/underside chip on the RailSounds 2.5 boards) of one of them is "GP9 04".
Can anyone confirm/deny that the sounds between these two units are the same, and/or check to see what the ROM (bottom/underside RailSounds chip) is labeled on their units?
While these sound files were created 20 years ago, they still sound great today!
Thanks-
TRW