RCA 1801 disappeared from face of Earth forever... You would be better off to purchase at:
http://www.sunrise-ev.com/membershipcard.htm to use 1802. The 1802 was very successful microprocessor that replaced 1801 because it required to have a pair of chips to work together. I believe I saw 1801 was more than 30 years ago. Good luck! Steven On Wed, Oct 18, 2017 at 9:45 PM, Brad H via cctalk <cctalk@classiccmp.org> wrote: > 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 > >