5 Apr
1999
5 Apr
'99
3:05 a.m.
On Sun, 28 Feb 1999 21:56:42 -0500, mbg(a)world.std.com (Megan) said:
[This reaction is a bit late, I'm slowly catching up on my classiccmp reading]
I think this is an excellent idea! It can even be done without a digital
camera for the dual- and quad wide boards, just lay them face-down on a
flatbed scanner! This is a lot quicker and the resulting images look just
fine. I did this for the images of the RQDX boards on my RQDX page at
<http://www.vaxarchive.org/hw/rqdx/>
You can see that the boards look great in the images. (Click on the small
images to see larger ones.)
If you have the time to scan the boards, but not the room on your web page
to post them, I can store them on VAXarchive. In fact, if everyone that
has a few DEC boards lying about, would scan them and email me the resulting
JPG's, I would have a 'visual field guide' online in no time :)
Kees.
--
Kees Stravers - Geldrop, The Netherlands - kees.stravers(a)iae.nl
http://www.iae.nl/users/pb0aia/
I'm Sysadmin and DEC PDP/VAX preservationist - Visit VAXarchive!
http://www.vaxarchive.org/ (primary)
http://www.sevensages.org/vax/ (mirror)
http://www.coyote.org/mirrors/vaxarchive/ (mirror)
I'd also
have a "shadow" page that showed the outlines of the "standard"
bus types so that boards could be identified by their outline.
Kind of line the charts 'plane-spotters' used...
I'll go that one better... I've been thinking of taking pictures (now
that I have a digital camera) of one each of all the qbus boards I
have in my stock, so that people can see what they look like. 
5 Apr
5 Apr
8:31 a.m.
At 06:05 PM 4/5/99 +0200, you wrote:
On Sun, 28 Feb 1999 21:56:42 -0500, mbg(a)world.std.com (Megan) said:
>>I'd also have a "shadow" page that showed the outlines of the
"standard"
>>bus types so that boards could be identified by their outline.
>
>Kind of line the charts 'plane-spotters' used...
Good idea. I'll chip in some images of HP boards and some other
odds-n-ends that I have around if someone wants to host a circuit board id
web page.
Joe
2:31 p.m.
Joe: T3C would gladly host the circuit board id page. This offer goes to anyone
else who has some photos/tips/diagrams on how to id components, other than
standard PC components. URL is at bottom of this note, email is
t3c(a)xoommail.com
Brian Mahoney
Joe wrote:
At 06:05 PM 4/5/99 +0200, you wrote:
--
http://members.xoom.com/T3C/
http://suite101.com/welcome.cfm/antique_computers
http://www.geocities.com/SiliconValley/Horizon/9107/
On Sun, 28 Feb 1999 21:56:42 -0500, mbg(a)world.std.com (Megan) said:
>>I'd also have a "shadow" page that showed the outlines of the
"standard"
>>bus types so that boards could be identified by their outline.
>
>Kind of line the charts 'plane-spotters' used...
Good idea. I'll chip in some images of HP boards and some other
odds-n-ends that I have around if someone wants to host a circuit board id
web page.
Joe 
12:56 p.m.
New subject: TRS Coco Computers
What is the difference between the Coco2 and Coco3 computers? I ran across a
couple of the Coco computers in the collection that look like the Coco2, but
don't have either a 2 or a 3 on them. Also, are the cartridges that worked
with the Coco1 compatible with the later models? Thanks.
1:13 p.m.
New subject: TRS Coco Computers
What is the difference between the Coco2 and Coco3
computers?
The Color Computer 3 has replaced the 6847 and some of the other internal
logic with a gate array. This provides some additional features such as a
simple memory management system, so that you can run OS/9 level 2. The CC3
is expandable to 512K of RAM, by adding a special memory expansion card.
Also, are the cartridges that worked
with the Coco1 compatible with the later models? Thanks.
Most of them are. A few that used the +12V supply, such as the first
generation floppy controller, are not. Those can be used if you plug them
into a Multipack, since it provides the +12V.
2:23 p.m.
New subject: TRS Coco Computers
Also, are the
cartridges that worked
with the Coco1 compatible with the later models? Thanks.
Most of them are. A few that used the +12V supply, such as the first
generation floppy controller, are not. Those can be used if you plug them
into a Multipack, since it provides the +12V.
1:54 p.m.
New subject: TRS Coco Computers
There are quite a number of Coco Variants. CoCo2's are cream, I think,
and I can't remember about the 3. They also little buttons on them with
the amount of memory, and we have one of the Vidtex specials.
On Mon, 5 Apr 1999, Marvin wrote:
What is the difference between the Coco2 and Coco3 computers? I ran across a
couple of the Coco computers in the collection that look like the Coco2, but
don't have either a 2 or a 3 on them. Also, are the cartridges that worked
with the Coco1 compatible with the later models? Thanks.
M. K. Peirce
Rhode Island Computer Museum, Inc.
215 Shady Lea Road,
North Kingstown, RI 02852
"Casta est qui nemo rogavit."
- Ovid
2:27 p.m.
New subject: TRS Coco Computers
On Mon, 5 Apr 1999, Marvin wrote:
What is the difference between the Coco2 and Coco3
computers? I ran across a
couple of the Coco computers in the collection that look like the Coco2, but
don't have either a 2 or a 3 on them. Also, are the cartridges that worked
with the Coco1 compatible with the later models? Thanks.
Well, my CoCo3s all say as a minimum Tandy 128k Color Computer 3, and
my CoCo2s indicate less memory IIRC (none within reach right now), but
I think at least the earlier Color Computer 2s are labeled Radio Shack
and I know none of the 3s were that I ever saw (now somebody is going
to see one I didn't, of course -- do any of you realise how many brain
cells I've killed since I quit Radio Shack in addition to those I
killed doing tech support for them from '80 to '86?)
--
Ward Griffiths
"the timid die just like the daring; and if you don't take the plunge then
you'll just take the fall" Michael Longcor
6 Apr
6 Apr
1:08 a.m.
New subject: TRS Coco Computers
On 5 Apr 99 at 23:27, Ward D. Griffiths III wrote:
On Mon, 5 Apr 1999, Marvin wrote:
I have a CoCo, 2 model 2s, and a model 3. Perhaps the ones you saw came out
between the CoCo 1 and 2. The ones TMK all just said CoCo. One of the 2s
labelled Radio Shack responds 14xxx to print mem and the other labelled Tandy
reponds 24xxx.
The Tandy CoCo 3 has, as well as the RF jack, a video and audio
jack, and an RGB plug on the underside.
Not to tax your brain cells overly Ward but I was just getting a color screen
and no prompt from the 3. I checked inside breaking the seal and voiding my
warranty ( :^) )and saw 4 sockected 4464 chips (mem ?) which I remounted and
one large square one which I take is MMU or ROM. All the rest including the '09
are flush mounted. I booted it again and the screen came up properly with a
prompt. I did a print mem and it responded 24xxx . Is this normal because of
banked memory or something or should I have gotten something closer to 128k
ciao larry
lwalker(a)interlog.com
Collectors info http://members.xoom.com/T3C
What is the difference between the Coco2 and
Coco3 computers? I ran across a
couple of the Coco computers in the collection that look like the Coco2, but
don't have either a 2 or a 3 on them. Also, are the cartridges that worked
with the Coco1 compatible with the later models? Thanks.
Well, my CoCo3s all say as a minimum Tandy 128k Color Computer 3, and
my CoCo2s indicate less memory IIRC (none within reach right now), but
I think at least the earlier Color Computer 2s are labeled Radio Shack
and I know none of the 3s were that I ever saw (now somebody is going
to see one I didn't, of course -- do any of you realise how many brain
cells I've killed since I quit Radio Shack in addition to those I
killed doing tech support for them from '80 to '86?)
--
Ward Griffiths
"the timid die just like the daring; and if you don't take the plunge then
you'll just take the fall" Michael Longcor
6:11 a.m.
New subject: TRS Coco Computers
On Tue, 6 Apr 1999, Lawrence Walker wrote:
Not to tax your brain cells overly Ward but I was
just getting a color screen
and no prompt from the 3. I checked inside breaking the seal and voiding my
warranty ( :^) )and saw 4 sockected 4464 chips (mem ?) which I remounted and
one large square one which I take is MMU or ROM. All the rest including the '09
are flush mounted. I booted it again and the screen came up properly with a
prompt. I did a print mem and it responded 24xxx . Is this normal because of
banked memory or something or should I have gotten something closer to 128k
9:17 a.m.
New subject: TRS Coco Computers
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9 Apr
9 Apr
7:50 a.m.
New subject: [OT] <10 yo DG Aviion
I know this system isn't 10 years old yet, but a company I use to
work for gave me a 88000 based Data General Aviion. I believe it is
an AV 4625 model if I'm reading the back right. DG's site only
talks about P-II and P-III based Aviions with nothing about the
earlier 88000 based ones. Anyone have any web site pointers or
info on these for me? I'm currently hitting each of the main search
sites without much luck.
Thanks.
-----
David Williams - Computer Packrat
dlw(a)trailingedge.com
http://www.trailingedge.com
8:31 a.m.
New subject: [OT] <10 yo DG Aviion
On Fri, 9 Apr 1999, David Williams wrote:
I know this system isn't 10 years old yet, but a
company I use to
work for gave me a 88000 based Data General Aviion. I believe it is
an AV 4625 model if I'm reading the back right.
This is probably one of the multi-processor machines, and is in a
deskside configuration, if I'm guessing correctly.
I've got an AV 310CD that I'm currently avoiding resurrecting (I have to
order a new NVRAM, which requires I put money behind my VISA check card,
and I'm not even certain that this will fix what ails the machine).
DG's site only talks about P-II and P-III based
Aviions with nothing
about the earlier 88000 based ones.
DG seem to have that philosophy, yes. They have an odd market presence.
Anyone have any web site pointers or info on these for
me? I'm
currently hitting each of the main search sites without much luck.
I didn't have much luck either. Apparently there are still a few Aviion
wonks hanging about comp.sys.m88k, but what little traffic it gets these
days is mostly about MVME machines running BSD. I also hear that there is
the occasional DG/UX traffic on the SVR4 group, although I haven't checked
this resource out as I have yet to get the OS running on my box.
Let us know if you find anything.
ok
r.
9219
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13 comments
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participants (12)
-
ard＠p850ug1.demon.co.uk -
at258＠osfn.org -
bmahoney＠sprint.ca -
dlw＠trailingedge.com -
eric＠brouhaha.com -
gram＠cnct.com -
kees.stravers＠iae.nl -
lwalker＠mail.interlog.com -
marvin＠rain.org -
red＠bears.org -
rigdonj＠intellistar.net -
transit＠primenet.com