I recently got the MTH ACL F3A-F3A set 20-2088-1 (2088-MT) from fellow modeler John Black. They came with ProtoSounds but I have converted one of them, ACL #341, to BPRC.
The 2nd A unit ACL #342 is a dummy, nothing can be done to make it run except get a new chassis with trucks and motors. I still want to use it, but in it's current state there's no lights at all.
How were headlights, number boards, etc used on a helper engine? No need lighting things up if they weren't used but I can't recall seeing any photos of the second/helper engines with any lights on.
Here's what they look like:
Here's the helper #342:
And #341, also need to diffuse the LED on each number board so they can be read. Any ideas?
These are nice diesels. Overall appearance is on par with the Atlas F3A I have, but I did notice the trucks are about 1/8" shorter than the Atlas trucks. The carbodies appear to be scale size.
Only thing I did was to remove the Protosounds electronics, the center rollers, and add Kadee couplers. Still have hi-rail wheels but they run fine on the 2-rail code 148 track.
Any help on what to do about the lighting is appreciated.