I have just acquired an anniversary 4-6-0
It hasn't any instructions with it, so I need know the operating voltage, also the part number of the speed controller.
Also is it suitable for radio control
There are many controllers available on the market. You need one that yields 0-22 v DC. Depending on how many cars are you going to pull, adding lights, smoke, etc.? That will start to dictate the amps you will need. I would recommend a minimum of 5 amps. If you want to expand your empire with more and larger engines go with 10 amps.
Chuck
Edit, try to avoid a starter set power supply. They will operate the train in the set, as is, but not much more. Their output is usually less than 1 amp. No power for expansion. Buy once not twice.