On 10/18/2017 06:45 PM, Brad H via cctalk wrote: > I just purchased an RCA Microtutor minus the rather important CPU card. I > can recreate the card but I expect locating the 1801 chips will be > difficult. I am just posting this in various forums in case anyone has any > leads on where I might find either the complete card or the required chips > to make a replacement. I'm wondering what, if any devices were built with > the 1801 that I might be able to scrounge from.
Not many--the 1801 lasted only long enough to get both chips onto the 1802 die. I imagine that getting both 1801 chips is akin to finding a National IMP-16 chipset, though the IMP-16 was probably used in more devices. --Chuck
