Yesterday I purchased a 1200 prototype from a local retro game store. It has no power supply. After doing some brief searching, I have questions about it that I hope the community can help with. It seems that it's not particularly valuable, is that true? Does it use the same power supply as the production 1200xl, or the standard 800xl ps? And I saw something about the rom being different from the production model. What is the difference? Is it like the 800xl?
Thanks for any info.