John -
I don't have a date of manufacture for my power supply. It came with the Hot Wheels ready to run set introduced about three years ago. It may be significant that this set included 14 pieces of track as compared to the more usual twelve. One of those track pieces was a power connector for Lionel plug and play accessories. All the track is orange.
I upgraded to the MTH Z-1000. This offered ample and adjustable AC power as well as a separate constant 14v AC accessory power for the uncoupler tracks for $129 out the door.
https://www.mariostrains.com/i...emart_category_id=15
I would sign my name here but it is the same name as a long-standing member. When we hosted the OGR birthday party at NJ Highrailers a couple of years ago, we all had nametags. People from all over the country were coming up to me like I was the buddy they never actually met. I couldn't answer their questions, either. Really weird.
