------------------------------
On Thu, Mar 7, 2013 4:26 PM PST Chuck Guzis wrote:
>Okay, I've got the schematics for the Explorer 88/PC (Netronics R&D, New
>LItchfield, Conn), which uses an 8250 for async, has a separate keyboard
>and cassette interface. No video as far as I can tell.
Would you consider sharing these with your down trodden brothers in the community who've had to go without?
>I also have an ISA card with 6 banks of 4164s and an Intual DUART on it.
>
>And I recall the "Blue Seed" kits.
Please expound.
>Lots of interest in the early PC, apparently.
Aye.
>--Chuck
>
At 18:11 -0600 3/7/13, <cctalk-request at classiccmp.org> wrote:
> > I decided that way because that price beat Ciarcia Circuit
>> Cellar's price for a *kit* for an 8086 SBC,
>
>"Micromint SB180??"? (PC compatible 9 slot)
>I built one of those.
Don't remember the exact name (MPX-16 from later posts), but pretty
sure that's the system! Fred, you are positively the Man; that is
totally awesome! How did the board work out? One of my few computing
regrets is never getting to play around on that machine, although I
love the Mac. I did get a Rainbow 100B years later, so I got as much
of MS-DOS (3.10b) as I wanted. Decided I liked CP/M 80/86 better, and
the Rainbow did that too.
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
At 3:22 -0600 3/7/13, Fred wrote:
>1985 Mac ~$3000
>1985 Mac using scrounged stuff ~$3000 - NOT AN OPTION.
>1985 Mac bare ~$3000 (Macintosh was not amenable in the 1980s to cutting
True in general, but my Fat Mac in about 1985 [1] cost ~$1500
(new) including University of Texas' academic discount (I was a
student). I decided that way because that price beat Ciarcia Circuit
Cellar's price for a *kit* for an 8086 SBC, and the 68000 looked more
powerful to me than the 8086.
I mistakenly thought that I'd be writing most of my own
software in either case - and I've yet to really learn any assembly
language. I totally misjudged the development of MacOS and
applications, or the speed at which MS-DOS' hardware requirements
would advance ...
Anyway, my point is that exceptions to Apple pricing did
exist, and were (at least in my case, though not necessarily for the
right reasons) decisive.
[1] I was going to say, "I still have it", but on thoughtful
consideration, I guess I only still have the bottom and front bezel
of the case and the CRT. Power supply re-built, logic board upgraded
to Mac Plus which required replacement of case back. Not too sure
about the frame - is that the same between a Plus and a Fat Mac? I
still have the mouse and keyboard and power cable.
--
- Mark 210-379-4635
-----------------------------------------------------------------------
Large Asteroids headed toward planets
inhabited by beings that don't have
technology adequate to stop them:
Think of it as Evolution in Fast-Forward.
------------------------------
On Thu, Mar 7, 2013 3:19 PM PST Fred Cisin wrote:
>http://books.google.com/books?id=zQWNinpbFx0C&pg=PA120&source=gbs_selected_…
>p158
Just how compatible was this thing? Did the article make any references to vid? I must assume the bios was supplied by phoenix or someone -
------------------------------
On Thu, Mar 7, 2013 1:27 PM PST mc68010 wrote:
>None of my links are working anymore. Just gives a 503 error. I need me some disk images.
Apparently no one has heard from Dave in a while.
------------------------------
On Thu, Mar 7, 2013 12:57 PM PST Chuck Guzis wrote:
>On 03/07/2013 12:42 PM, Fred Cisin wrote:
>
>> It had NINE slots, with the alternate ones spaced the same as the 5150,
>> thus permitting 5150 case if you didn't need bracket on four of them.
>> But, the UNUSUAL part about it was that it was designed to work from a
>> terminal, instead of PC style keyboard and screen. That apparently didn't
>> work out, so he came out with a keyboard ISA card. (to make the machine
>> forgettable)
>
>I have a booklet of schematics for a very similar kit, but I don't think the name is "Micromint". Also, wasn't the UART something like an 8274, rather than an 8250, shared with DRAM on an ISA board?
>
>--Chuck
The articles appeared in BYTE, was even on the cover of one issue.
An individual gave away one on this list a few years ago (took a minute, Rich Cini).
------------------------------
On Thu, Mar 7, 2013 12:57 PM PST Chuck Guzis wrote:
>On 03/07/2013 12:42 PM, Fred Cisin wrote:
>
>> It had NINE slots, with the alternate ones spaced the same as the 5150,
>> thus permitting 5150 case if you didn't need bracket on four of them.
>> But, the UNUSUAL part about it was that it was designed to work from a
>> terminal, instead of PC style keyboard and screen. That apparently didn't
>> work out, so he came out with a keyboard ISA card. (to make the machine
>> forgettable)
>
>I have a booklet of schematics for a very similar kit, but I don't think the name is "Micromint". Also, wasn't the UART something like an 8274, rather than an 8250, shared with DRAM on an ISA board?
>
>--Chuck
The articles appeared in BYTE, was even on the cover of one issue.
An individual gave away one on this list a few years ago (took a minute, Rich Cini).
Anyone know what keyboard this is/was and if it was really standard? One
of the dudes collecting stuff at Electronics Plus last weekend I think got
it for a collector friend who's on this list. There were two of the
keyboards, obviously from some government terminal/system but only one had
the key. On top it was a skull and crossbones but on the user facing side
it I believe said U11 as with most of the keys up there so it seemed
legit. Thought it was funny but can't find much mention of it out there.
Alternatively if you have it and have a pic somewhere I'd love to see it
again :-)
- John