20 Apr
2004
20 Apr
'04
12:27 a.m.
I made a major score of 1802s recently. A couple of weeks ago I went a
scrap place and found some old traffic controllers. I opened one and found
that they all used socketed 1802 CPUs. I pulled over 50 of them :-) The
controllers were Transyt moddel 1800s and they're made in Tallahassee
Florida. Here is a not so good picture of what they look like
<http://www.signalfan.freeservers.com/controllers/transyt1.htm>. FWIW I
also found a couple of Eagle controllers and I checked them, they used
68008 CPUs.
OK, Now go find those controllers!
Joe
20 Apr
20 Apr
1:31 a.m.
On Tue, Apr 20, 2004 at 08:27:40AM -0400, Joe R. wrote:
I made a major score of 1802s recently. A couple of
weeks ago I went a
scrap place and found some old traffic controllers. I opened one and found
that they all used socketed 1802 CPUs. I pulled over 50 of them :-)
What specific model of 1802 is in there? What manufacturer? (CDP1802BCEs
are somewhat common for processors of modern manufacture; I have one
old 1802D that someone paid a lot of money for at one point (ISTR you
can push an 1802D to +10VDC and overclock it, compared to the cheaper
models).
Do you know about the 1802 Yahoo! Group?
http://groups.yahoo.com/group/cosmacelf/
As soon as I can find some black paint, I'll be taking pictures of the
Popular-Electronics Elf I just put together a few days ago.
FWIW I also found a couple of Eagle controllers and I
checked them, they used
68008 CPUs.
68008s are useful to Sinclair owners. It's not tough to build a homebrew
project with one. We had a prototype async<->bisync adapter based on them
(since our codebase was for the 68000) that never left the lab. If we'd
designed it later, I'd probably have recommended a 68330-type embedded
communications controller.
Good score.
-ethan
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Ethan Dicks, A-130-S Current South Pole Weather at 20-Apr-2004 13:20 Z
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