Atari 5200; Coleco Power Adapter

[Prog]

I want Atari 5200, and yes I'm serious. I prefer a 4-port console with the RF box and PSU, but all offers considered. Controllers and games are a plus.

I also need a PSU for my Colecovision. Alternatively, if you happen to have one sliced open and can tell me the value of the resistor, please let me know.