Coleco Prototype Console
This is the console that was believed to have been sold to Mattel wich would later become the Intellivision
If you look at the design, the cartridge slot placement, it makes sense
Not much is known about this other than when I've contacted the owner of this cell, he told me this was the console Coleco first made and sold to Mattel
Any idea when coleco sold a prototype to Mattel. In 1977 Mattel took chipset proposals from National Semiconductor, General Instrument, and Mos Technology. They ended up chooosing GI but requested improvements. They also chose Magnavox to build the system. Some of the chips weren't ready until 1979 so in 1978 they worked from large emulator boxes; so the coleco prototype couldn't have an intellivision inside. If the controllers have intellivision discs that would be something but they are likely colecovision joysticks. Where is the cartridge slot on the prototype?
By the way, the first time I saw a picture of a colecovision the controllers had the wheel between the joystick and keypad. I can't remember but I thought it was a retail catalog. Is that possible.