>It was quite a shock a few years ago, when I started seeing Craftsman
>tools for sale at OSH (Orchard Supply Hardware)
OSH is a Sears company, so is I believe "Village Hardware", they are
their Home Depot competition stores.
-chris
<http://www.mythtech.net>
In a message dated 1/26/2002 3:39:59 AM Eastern Standard Time,
vance(a)ikickass.org writes:
<< > Well, I got irritated with the keyboard (ever try to use vi without
> the Escape key) and jerked it apart. Very gently.
>
> 1) I'm certain that it's re-badged OEM, not IBM-built. All the screws,
> internal and external, are Phillips.
IBM's keyboards were always built by Lexmark. Recently (a few years ago),
Lexmark spun off their keyboard operation, which was swalllowed up by
Unicomp. This keyboard was built before IBM spun off Lexmark, which means
it was built by IBM.
> 2) It's not a double membrane, it's rubber cups over a PCB, with foil
> inserts in the caps. The traces on the PCB were covered with
> unidentified goop. *Only* under the Escape key. I dunno.
The mechanism in IBM keyboards is called a "buckling spring mechanism".
>>
I've two RT keyboards. One is buckling spring and the other has quiet keys
and seems like a cheaper version.
--
Antique Computer Virtual Museum
www.nothingtodo.org
In a message dated 1/25/2002 11:30:34 PM Eastern Standard Time,
mcguire(a)neurotica.com writes:
<< On January 25, Doc wrote:
> > I think there might be a tape controller board of some sort (with no
> > drive) in mine. I will crack it open and find out. Do you know what
> > the FRU number would be on the 6157?
>
> Wouldn't it be easier to run diags?
It might, but I don't have any. The big pile of RT disks that I got
from BSD Bob were mistakenly left in a storage locker in Maryland, and
I won't be able to get to them for at least another month. :-( >>
I think I have a diagnostice floppy somewhere that I found in a stack of
unrelated floppies. Talk about serendipity! I guess regular old diskcopy
would work on them.
--
Antique Computer Virtual Museum
www.nothingtodo.org
I recently stumbled upon some schematics for a reverse engineered
BBC Master Video ULA. Dammed if I can find the URL.
Anybody seen these schematics ?
Chris
> -----Original Message-----
> From: Ben Franchuk [mailto:bfranchuk@jetnet.ab.ca]
> Now where all the female programer types when you want them? :)
Very difficult to find.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
Richard Cini wrote...
So, here's the stupid question...how do I solder
these things? Do I hold the iron parallel or perpendicular
to the package leads? The board is pre-tinned, but I
should I also tin the QFP leads?
Neither. The best way to home solder these things is to use
solder paste and a toaster oven, there's an article on
www.seattlerobotics.org on how to do this.
If you must use a soldering iron use a large bit (4.5 to 6 mm)
and run along the edge of the tinned section, not quite touching
the pins, and allow the solder to wick into the joints. Don't
worry about solder bridges, these can be removed later with
solder wick and a good flux.
If you make a complete mess of it remove the chip using a
hot air gun then clean the board with solder wick removing
any left over flux with solvent and try again.
Also use a soldering iron of at least 45W with a temperature
controlled bit.
The easiest way to practice is with the chips on scrap PC
motherboards ... see they do have a use 8^)=
Lee.
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On January 25, Doc wrote:
> > > Wouldn't it be easier to run diags?
> >
> > It might, but I don't have any. The big pile of RT disks that I got
> > from BSD Bob were mistakenly left in a storage locker in Maryland, and
> > I won't be able to get to them for at least another month. :-(
>
> ftp://ftp.dementia.org/pub/rt/diags.[1-3].gz
> ^^^^^ list-box...
> dd floppy images.
Ahhhhhh, most excellent. Thanks! :-)
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
On January 25, Doc wrote:
> > I think there might be a tape controller board of some sort (with no
> > drive) in mine. I will crack it open and find out. Do you know what
> > the FRU number would be on the 6157?
>
> Wouldn't it be easier to run diags?
It might, but I don't have any. The big pile of RT disks that I got
>from BSD Bob were mistakenly left in a storage locker in Maryland, and
I won't be able to get to them for at least another month. :-(
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
Hi everyone!
I've been doing a little bit more research on this strange Evans and
Sutherland computer that turned up at the University of Michigan
property disposition warehouse, and I thought I'd mention some of it
here in case anyone were interested.
I was doing a little more determined Web-surfing, and, as far as I
can tell, this machine was not an ES-3, but an ESV-3. With that
information in hand, I turned up some of the following information.
* These machines were based upon the MIPS R3000 microprocessor. They
seem to have been as powerful (at least processor wise) as an SGI
Personal IRIS 4D/35 or a lowball (R3000) SGI Indigo. I'm still quite
curious as to their graphics capabilities, though. How would these
have compared to the Elan graphics system that SGI would have been
selling around this time? How about GTX/GTXB/RealityEngine graphics
on the larger Power Series and Crimson machines? Any ideas?
* They seemed to commonly have between 32 and 64 megabytes of RAM,
and between 500 to 1000 megabytes of hard disk storage installed
(probably) as standard.
* They ran an operating system called ES/OS, which as far as I can
tell was some sort of UNIX derivative that also ran the X Window
System. It doesn't look like it got much farther than version 2.x.
* They seem to have been quite popular in the chemical modeling
field, and were also used in X-Ray Crystallography (sp?).
So, I'll see what I can do about going back there and picking it
up perhaps sometime next week. Unfortunately, the University wants
$100 for it, and as I said earlier, the system is lacking the
keyboard, mouse, and monitor (and I imagine that these do not show up
very often), so I'll still probably be deliberating this purchase a
little bit.
Interestingly enough, I found a mailing list message in Google's
cache (circa 1999) soliciting a source for replacement E&S ESV
systems from the University here as one had broken... I wonder if
this was it! :) If it is, it sure gives one a feel for the speed
of the property disposition pipeline!
Ah, yeah, I'll take a look at how much they want for that DG dual
floppy drive as well. I wouldn't imagine it's going anywhere
quickly. :)
Kind regards,
Sean
--
Sean Caron http://www.diablonet.net
scaron(a)engin.umich.edu root(a)diablonet.net
