@bobotech posted:Regarding the transformer, I am currently using my Type 1044 which is rated for 16v.
With no load, that is exactly what it puts out.
Right. But while your loco is trying to pull the two dummies, what is the voltage on the rails at the far point opposite the transformer connection?
A normal F3 "growler" draws 3-4 amps. The 1044 is a little underpowered for this loco. With the train running, the load on the transformer is probably pulling the voltage down closer to 12V. I also have experience with these locos. I watched your videos, and especially in the second one with the loco running by itself, my opinion is that your loco is running fine at a "normal" speed for this design, allowing for typical play wear in the gears, etc. I would be very surprised if new brushes make it run faster. If you're an expert repair person and replace every part that's worn, it might run 10% faster.
You could actually time it around the track. But you would have to recreate the test conditions exactly to demonstrate any improvement. Not trying to start an argument, but Lou's engine isn't a good comparison because he's running it on command with a digital e-unit.
