Paul I have a MTH Proto 1 Pennsy K4 that I purchased that was suppose to be a Proto 2 at a train show.
Didn't't figure it out until I got the engine home and on the layout, live and learn !!!!
QSI was advertising there QSI 3000 sound boards at that time and I upgraded this engine to this sound system.
With a MTH Z4000 you can program the feature number and then the engine would go through it's routine and the voice from the engine was the Feature Number, Description of the Feature and then Dispatch I'm Ready. Pretty cool for it's time.
Getting ready to upgrade this engine to Proto 3.
Wish I could take the Pennsy Banshee Whistle that came with this sound system and move it to my future Proto 3.
Why MTH can't copy this whistle for their Pennsy freight engines sound system makes me wonder. It's out their why can't they copy it or copy it and enhance it.
Oh well, good luck with your talking engine !!!!!
