Hello all ..thank you for your kind words ....I'm using a lab DC generator ... as I was playing with the Nason Consolidation the day before and being prewar ..runs at about 9 volts ... link to see Nason OO
https://www.youtube.com/watch?v=cpEIVoHgxqA
Passenger cars are Scale Craft ... diecast .and .the post war sheet metal sides ....Walthers never entered into OO to the best of my knowledge ....
please see images of standard SC Class H Northern ....and the Challenger .. you can see the the line on the boiler where is was cut just behind the front sand dome ... about 21/2" was added ... makes a nice engine in my book
not to shun the SC Northern here is a link to see a video of it running .
https://www.youtube.com/watch?v=HPYLpDxU9tI
yes that is Tru- Scale track ...works great ...just not quite wide enough radi .....need to find a loop of 36" currently 30" ... the HO loop is also Tru-Track 30" radi ...
Cheers Carey