I'm going to put it on my list of projects to create a CPU card for my
Microtutor that uses the 1802 instead I think. I can get some blue PCB stock.
As far as I understand the 1802 is fully backward compatible.
Maybe the 1801s will show up on day. I've found all kinds of chips I was told
were impossible to locate.
Sent from my Samsung device
-------- Original message --------
From: Steven Feinsmith <steven.feinsm...@gmail.com>
Date: 2017-10-20 7:32 PM (GMT-08:00)
To: Brad H <vintagecompu...@bettercomputing.net>, "General Discussion: On-Topic
and Off-Topic Posts" <cctalk@classiccmp.org>
Subject: Re: CDP1801
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
