I have concept drawings of a GB/ NES Mini console that I did not to long ago and had planned this as a project thanks to inspiration from another Element14 user, however upon some research, the original Gameboy just cannot be properly converted for composite output. This project unfortunately is more suited for GBA or Game Gear. Game Gear has a very simple conversion for composite output although this is a Sega console and would be more suited as a GG/ Sega Genesis Mini Console.
I have concept drawings of a GB/ NES Mini console that I did not to long ago and had planned this as a project thanks to inspiration from another Element14 user, however upon some research, the original Gameboy just cannot be properly converted for composite output. This project unfortunately is more suited for GBA or Game Gear. Game Gear has a very simple conversion for composite output although this is a Sega console and would be more suited as a GG/ Sega Genesis Mini Console.