Hi there,
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. Thanks again, B