Standard motor common to many reel to reel machines its the same motor in the A8
These are the same motor but they are configured for left and right, if you use the wrong one you will just need to change the wiring, the right one has a black plug, the left one a brown, these have a plastic , dual pulley which is included.
I have 2 so you can specify left or right
Interesting is that the model 80 used 2 belts per side and they were square rather than round belts
I have 2 motors where the wires were just cut they are 7 pounds cheaper as you will need joing the wires and they look a little older but test fine