@Rjm posted:It's just that one dynamo (that's what I thought they are called too but Lionel called them "Turbogenerators") that I could see. My Allegheny's have two. Now, if the 4012 had a second one, I'll be calling Lionel for another part.
No, none of the preserved UP 4000s in parks & museums have two dynamos. The second dynamo was added to UP 844, and 3985 in their later years of excursion service(maybe in the late 1990s), and subsequently the twin dynamo set-up on 3985 was removed and installed on 4014. Thus, 4014 would be the ONLY UP 4000 with two dynamos, and they were/are always on the Fireman's side.
LOL To me, these details are visually appealing. I'll find some more pictures of the engineer's side to see if it had one and where to place it. On the Allegheny, it is on the engineer's side up between the sand domes.
I have no idea why your C&O Alleghney model has two, nor why it would be on the Engineer's side. My HO brass model of C&O Allegheny #1650 has only a single dynamo, and it is mounted on the Fireman's side, just like UP steam locomotives.
Now you've got me curious.
