In a message dated 12/29/01 3:15:45 PM Pacific Standard Time,
geoffr(a)zipcon.net writes:
> > > This is going back into a very fuzzy memory...but does anyone know if
> > > an Archive 2150S drive (QIC-150) will read QIC-24 tapes? Those drives
> > > are pretty common, and they're standard SCSI so they don't require
> > > less common interface hardware. And, I think I have one. :-)
>
> 2150S will read a QIC24 tape just fine.
>
Most any 60 meg, 150 meg and IIRC 525 meg drives will read QIC-24, Serial
Recorded Magnetic Tape Cartridge for Information Interchange (9 tracks,
10,000 FTPI, GCR, 60 MB)
Here is a link to the QIC Standards.
http://www2.qic.org/qic/html/qicstan.html
QUIC-02 & QIC-36 are interface standards and should not be confused with
QIC-24 which is a format for information interchange.
The QIC-02 interface 150 meg drive should work if you have a QIC-02
controller in your computer.
SCSI drives are easier. An Archive 2150S should work fine.
Paxton
Astoria, OR
From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com>
>And where can I get a dish^H^H^H^Hboard washer that STARTS at 150
degrees?
>Mine takes a while to flush the cold water through the system before it
>starts spraying hot. When I turn on a "HOT" water faucet, in MY house,
it
>takes it close to a minute to come up to temperature. One of the
>consequences of long pipes and not sharing plumbing with a lot of other
>people.
Thank you for pointing out the most practical matter of it all.
Allison
From: William Donzelli <aw288(a)osfn.org>
>I would think the thermal shock of the chips hitting the hot water would
>be a failure mechanism. Hot air and hot water are different things, even
>at the same temperature. The thermal resistance of a water to ceramic
(or
Not an issue as the temps are well blow boiling (nominal 145f).
>plastic) junction is much, much lower, than one with air, so during the
>first seconds of the wash cycle, the chips go from ambient
>temperature to something rather high. Lots of stress results, especially
>if only some of the chip's package gets wet. Preheating the boards would
>help reduce the shock greatly, but home dishwashers do not do that (not
a
>good idea to cook the food onto the plates before trying to wash them!).
Not required.
>The above is one of the reasons why liquid cooled electronics are a bit
>tricky. The cooling units *never* just start pumping cold water when the
>power is applied. There is always a stabilization period, so the shock
is
>reduced.
Some do, other run the cooling first and let the coolant temp climb to
operating temp gradually. Others preheat the coolant to working temp
so the system can come on line faster.
Allison
In a message dated 12/28/01 7:50:09 PM Eastern Standard Time,
rschaefe(a)gcfn.org writes:
> I talked to a man named Jon Ikoniak at temple.edu in PA not too long ago.
> Seems he has a large collection of old DEC gear he inherited from a
> predecessor. He said that a lot of the complete units have been gobbled
up,
> but there are still a few racks
> left, and lots of drives and parts. They appear to be free. I was
planning
> on posting his email address, but after the last virus I got from my buddy
> s.ring, contact me off-list for email or a voice number.
I would be interested in information. I actually live close by.
The other day I found a SCO Open Desktop 2.0.0 media kit, on Qic24
tape. I don't have the correct drive...... I don't have any tape drive
experience, actually.
Does anybody have an unneeded Qic24 SCSI tape drive? I checked Ebay and
I didn't see anything that I thought was what I needed.
I wish this were on cd..... that would be easy!
Chad Fernandez
Michigan, USA
As I've mentioned before, I have a Heathkit H-11 with standard Heathkit
disk controller. The disk controller locks up the CPU if it's in place
in the interrupt chain (it will begin the boot process if it's behind
all the cards with a gap in the grant chain, but after loading the boot
sector and turning on interrupts, the OS, naturally, won't run).
So... I have tested all the TTL chips in a chip tester. What I can't
test are the 88xx bus chips. From tracing the grant pins, I think
the 8837 is what hangs off the interrupt lines. I have finally found
some (unsoldered) loose replacements. What I still lack are schematics
or at least a jumper map.
The jumpers have been soldered and cut and resoldered before I received
the card. As a result, I have no idea what they are supposed to be set
at. Does anyone know the state of the jumpers for default operation?
Thanks,
-ethan
__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
http://greetings.yahoo.com
From: Ben Franchuk <bfranchuk(a)jetnet.ab.ca>
>While you hear a lot about 'classic' common old CPU's -- apple, radio
>shack,
>commodore do people find any homebrewed computers did that all stop when
>the S-100 bus came out?
No, if anything the MITS box was the kickoff.
Alllison
I have a set of disks and manuals for Interactive UNIX 2.0. I got it
way back when my local ham radio club was big time into it. Linux
eventually displaced Interactive as a favored distribution, but 10+
years ago, if you wanted SysV r3.2 for an i386, this was one of the best
ways to do it. We used it largely for UUCP, but on more than one occasion,
I used Vpix, the DOS environment emulator that ships as an option to
Interactive UNIX, so I could run the Microsoft C compiler to produce some
little command-line tool.
By today's standards, it's a footnote of the OS wars. If, however,
you want something which was representative of the times, it's a nice
thing to have. I do not need it and am offering it to the list before
discarding it.
Free to good home; you pay shipping from 43202. It will be several pounds
due to the quantity of paper.
-ethan
__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
http://greetings.yahoo.com
On December 29, Bob Shannon wrote:
> At Media 100 Inc, we make high-end video equipment, non-linear
> editors. We use very fancy TXCO's, (+/-2 ppb) and they do not
Oh My. If any of those should happen to "fall out", let me know. 8-)
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
If you consider 65f to 145f heat shocking significant then whatever
you do don't turn on your PC. Seriously, that is not enough temp
change and cycles, common temp shock testing {operating} is
freezing water to 158F water {+70C} for many (usually hundreds
of cycles). Usually the upper temp is not the operational limit but,
the storage limit (in the 150C {300f} range!). Never minding what
wave soldering a 16pin dip does in a room temp to molten solder
step!
For the average dishwasher that would likely be only one cycle
of the 65-145F span as well.
Again if your really that worried, don't. Reality is that anything
that woud be that fussy is really fragile. The only examples of
something I'd worry about down RI there is the PDP-12 a(maybe)
and definatly the PB250{uses germainium transistors with low
Tstorage and operating range, delay lines and other rare items}.
Even then my viewing of both of those is they were very clean
and not likely at issue.
Allison
-----Original Message-----
From: William Donzelli <aw288(a)osfn.org>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Saturday, December 29, 2001 3:05 PM
Subject: Re: Try it!!!! (Was - Re: One More PCB Dishwasher Question)
>> Not an issue as the temps are well blow boiling (nominal 145f).
>
>You missed the whole point. A sudden change (as in a second or so) from
>65 F to 145 F will shock a chip far more than a gradual change (15
>seconds) from 65 F to 212 F. It is the rate of change, and not the
>change itself, that matters. With hot water hitting the chips instantly,
>the rate of change is going to be *really* fast. It may also be uneven -
>if a large chip only gets half soaked with the hot water at startup.
>
>William Donzelli
>aw288(a)osfn.org
On Jan 6, 16:33, SP wrote:
^^^^^^
Someone needs to set their clock... it was Dec 22, actually
> One Dilog DQ614 driver disk for RT-11. I have
> one of these boards inoperative because I can't
> configure it.
Was it Zane or Ethan who was also looking for this?
Well, it's a bit late, but I have an extra Christmas present for you guys.
You'll find the diagnostic and formatter program, along with a diagram of
the board, and the jumper tables, at
http://www.dunnington.u-net.com/public/DQ614/
It would have been done on Christmas Eve, but my RX02 drives needed a
severe talking to, along with the 11/23 they are on.
--
Pete Peter Turnbull
Network Manager
University of York
I may be jumping in late since I missed the original request (I get the
digest version and don't always read them each day) but I have dBASE 5.5
with the compiler if that would help. Or do you need version 5
specifically?
Bob Stek
Saver of Lost Sols
From: Bob Shannon <bshannon(a)tiac.net>
>TXCO's come from the factory with special caps you place over them while
>they go through the soldering oven (modern boards don't get wave
soldered anymore).
Older ones were effectively sealed units with a removable screw opening
that
was sealed with an O-ring. Those stand dishwaser just fine. Of course
many
computers never have anything like a TCXO on them.
>Failing to place these protective caps over the TXCO's when they go
through the
>wash cycle leads to a drifting oscillator that very often fails soon
after its in
>the field.
This is to be expected with any sealed part or temperature sensitive
part.
Then again a reflow oven is far hotter than a dishwasher.
>As the focus of the list is older machines, we need to keep things in
mild like
>paper roll caps, etc. Advising that running old boards through the
dishwasher,
>while sometimes safe, is not an absolutely safe thing to do.
Actually caps like that are likely to have failed from age by now.
Systems
that used them are likely quite old and not of the easily dishwashed
contruction
for mechanical reasons other than components used.
>I do agree that most often, semi-modern boards will survive the process,
but there
>are many components that will not. These components used to be much
more common
>than they are today. But as the discussion relates to this older
technology, any
>reccomendation to run the boards through a dishwasher should address the
very real
>risks.
Modern as in PDP-8/11/ and vax series, flip chip and similar are
certainly
cleanable this way and likely were in the factory back then too. Older
modular constuction of a more hand wired era may be not suitable. Then
again most of the DEC wirewrapped backplanes would likely survive a
dishwash but, it may be ill advised as they are mechanically fragile as
those that have worked with them know.
>How hot was the water? I don't know, its not something I can easily
control. Is
>is possible that the 'dishwashers' used for this function commercially
have been
>altered, and/or are connected to a lower temprature source of water? I
do know
>that dishes come out a bit too hot to handel unless you open the door
and allow
>them to cool.
Generally domestic hotwater never exceeds 160f due to scalding risks for
the users. Some dishwasers have reheaters to compensate for low domestic
water temps but they still only shoot for 160ish (F) max, and often that
can
be turned off by using the economy cycle. The bake dry cycle should be
avoided if there is one (or too warm). One thing we ar not talking about
is
temps near boiling (212f) or water that hot.
>I do know its a heck of a lot hotter than any bath, after all, there is
a heater
>element inside the dishwasher.
Usually for dry cycle, sometimes powered to compensate for low domestic
water temps. Econco cyle turns if off more often than no. bath water is
maybe
105-115f (Very hot!) FYI. People are susceptable to harm with water over
130f.
>I'm not sure its a temprature issue, as some have assumed. A dishwasher
may have
>very powerful waterjets and a lot of vibration. The dammage may be
mechanical,
>possibly a bonding wire detachment.
No, internal bonds for the parts can take that shock and likely 10X that
all day.
External bonds??? We are talking soldered boards not wire wrap or really
old
MIL spotwelded.
>But I'd like to point out once again that there are a good number of
components
>that will be dammaged by water. Some of these have been listed in posts
here
>already. If we accept that some components cannot be washed in this
way, how can
>anyone defend a blanket statement that using a dishwasher on a board
will be safe
>for that board?
Most of the components are of the "open" contruction and not suitable or
the problem
of assuring they will dry needs addressing. The average printed circuit
construction
used in computers often does not contain them or they are designed to
allow for that
kind of cleaning.
Parts I worry about and see:
Pots (variable resistors of enclosed design)
small relays of non hermetic design
DIP switches (may need replacing anyway)
Power upplies in general, (other than potted units).
>All those tiny little pulse transfromers on your core memory sense
amplifiers, do
>you know those are able to withstand this treatment? Many are not fully
>encapsulated, and would not be safe to treat this way. Some components
(like
>crystals, not oscillators, just quartz crystals) cannot even be soldered
safely,
>and are socketed for this reason. Is it s good idea to run these
through your
>dishwasher?
Soldering is high stress compared to 160f water. Also of they are
socketed
then by all means unplug them first then was the board. Most quartz
crystals
however are hermetic and can withstand significant amounts of heat.
Again
oen design parts have to be evaluated, most tolerate wetting well if
properly
dried before use.
A core memory sense board fo the PDP-8e/f/m design and era tolerate this
very well, then again they are of modern design. I have done it to
several with
at least one comming out working where it didnt' before! Cleaning prior
to
troubleshoot was to make life easier in that case but instead removed
whatever debrie causing the inital problem. Something from the PB250 era
would be more suspect, mostly due to a multitude of other reasons.
I've done it as well to the PDP-8/f front pannel (rotary switch and many
lamp
sockets) with excellent results. It's still working well over two+ years
later.
>If your sure no components will be effected, go ahead and try your
dishwasher. If
>your not absolutely sure, or if replacement parts are hard to get, don't
take the
>risk, and use a little IPA and some elbow grease to clean your boards.
That first half is fair advice, be sure first. The second half is faulty
however as
there are just as many parts that will not tolerate IPA for extended
times or
the residue that may be left behind if not adaquately rinsed.
It's fair to use caution but, to be a nelly maid over it is usually not
warrented.
Allison
For those who don't believe that it's okay - prove it to yourself. Here's how:
1) Pick a dirty, filthy board that somehow seems to work, and is worth very
little to you
2) Make sure it doesn't have:
a) relays
b) large capacitors
c) transformers
d) iron-core inductors
e) fragile labels or core memory
3) put it in your dishwasher by itself, with no detergent (just for
testing), and turn off the plate warmer and dryer
4) wash it!
5) shake off excess water after cycle finishes
6) clean - isn't it?
6) hang up to dry indoors for several days
7) plug it in. Works, doesn't it?!! And clean, too !!!!!
Don't take our words for it. Try it!!!! You'll be amazed at how clean the
boards get, with so little effort on your part.
- Matt
At 11:22 AM 12/28/2001 -0600, you wrote:
>On Fri, 28 Dec 2001, Bob Shannon wrote:
>
> > Never run boards through a dishwasher!
>
>Oh no, not this thread again :)
Matthew Sell
Programmer
On Time Support, Inc.
www.ontimesupport.com
(281) 296-6066
Join the Metrology Software discussion group METLIST!
http://www.ontimesupport.com/cgi-bin/mojo/mojo.cgi
"One World, One Web, One Program" - Microsoft Promotional Ad
"Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler
Many thanks for this tagline to a fellow RGVAC'er...
Hello, all:
Here's an update on my annual housecleaning. I've found a few more items
which I've added to the list and I'm marking those which have been spoken
for already.
- AIM stuff - there are about 2-3 partial boards, 2 keyboards, 2 bases and
4 tops still available.
- Books:
* A Programmer's Viwe of the Intel 432 System (Organick) - still available
* Inside Commodore DOS (Immers) - spoken for
* MicroC/OS-II RTOS book with disk (Labrosse) - spoken for
* Microcomputer Experimentation with the Motorola MEK6800D2 (Leventhal)
- available
* Motorola Microprocessor Software Catalog (1984) - available
- Magazines:
* Spare BYTE magazines: 1/82, 3/82, 4/82, 10/85 (2), 10/86, 11/86,
9/87. Condition is very good on some to fair on one.
- Software:
* MicroSolutions UniForm for the Epson QX-10
If anyone is interested in any of these remaining items, contact me
off-list. I would prefer trades for these items. Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
Chad Fernandez <fernande(a)internet1.net> wrote:
> I found a box of SCO Open Desktop 2.0.0. I don't know anything about
At Wollongong, we had this installed on a ca. 1991 Compaq, something
like a 386/20, with a monochrome VGA display. And yes, it did get
most of its bits from the tape; we had an Everex QIC drive of some
sort attached. I remember going through some grief to get it
configured (more preceisely, re-configured after some biscuit of a QA
engineer installed TWG's TCP/IP then decided he needed SCO's TCP/IP,
which of course forced re-installation of the whole thing), but it was
long enough ago to be on topic here and I no longer remember the
details, except that I wrote them down and taped the paper to the tape
drive which is long gone.
Open Desktop is a SCO/Motif flavored X GUI. If you really want to use
the GUI stuff, give it more oomph than Wollongong did: it was
painfully slow on that Compaq. Along about 1995 the system was being
used more for testing a "SCO ANSI" terminal emulation and I worked out
how to make it not start X on boot, and it continued running that way
(off in a corner with almost no attention) until April 1999 when
Attachmate shut down the former Wollongong offices.
-Frank McConnell
On Dec 28, 14:30, Zane H. Healy wrote:
> Amazing! Now the question is, does anyone know which HD's will work with
> this? I just might have to go digging through storage in the very near
> future!
The manual had a "non-exclusive" list of drives known to work; it suggested
that just about anything should be OK. The formatter lets you set things
like step pulse rate/seek time, heads, cylinders, etc.
> The other question is, once the disk is formated, does it matter what you
> use for an OS on it, or does it need to be RT-11? I was hoping to be
able
> to use this board for OS's that expect RL02's instead of MSCP disks.
As far as I know, once the drive is formatted, it uses the standard driver.
Assuming the formatting stores the setup details on the drive, I don't see
why it shouldn't be possible to use another OS afterwards.
I no longer have my DQ614, so I can't test it for you :-(
--
Pete Peter Turnbull
Network Manager
University of York
On Dec 28, 20:30, SP wrote:
> I can't believe it.
>
> This success suppose to me to change some of my
> thinkings about the life, the religion and other matters.
> By example: Santa Claus exists ? Etcetera.
>
> But, by the moment, in case this driver works, I can put
> you in my list of fortunate with one bottle of Red Wine
> from Spain, variety Rioja.
I hope it works -- I like Rioja! Seriously, let me know how you get on
with it. Make sure the files you download are the right size. DQ614P.SAV
should be exactly 27648 bytes and DL.SAV (which is the driver for RT-11
V5.04 *only*) should be exactly 2048 bytes. If they come out differently,
either use Netscape on a Unix box to download, or ask me to put copies
somewhere else for FTP.
--
Pete Peter Turnbull
Network Manager
University of York
Speaking of doors to SGI's, I am in need of a front door to a deskside
Onyx.
Peace... Sridhar
On Fri, 28 Dec 2001, Bruce Pullig wrote:
> Date: Fri, 28 Dec 2001 21:42:53 -0600
> From: Bruce Pullig <bruce(a)pullig.com>
> Reply-To: rescue(a)sunhelp.org
> To: SunRescue <rescue(a)sunhelp.org>
> Subject: Re: [rescue] Indigo sans front cover
>
> I found my Indigo front door. (has XS24 on the front) If you want it, let
> me know where to ship it.
>
> Bruce
>
> --
> Bruce, Lorelei & Nathaniel Pullig
> bruce(a)pullig.com
> lorelei(a)pullig.com
> nathaniel(a)pullig.com
> www.pullig.com, www.pullig.org
> _______________________________________________
> rescue maillist - rescue(a)sunhelp.org
> http://www.sunhelp.org/mailman/listinfo/rescue
>
Told you I was "DEC Challenged"....
KZQSA is Q-BUS, not Unibus....
(sigh)
- Matt
Matthew Sell
Programmer
On Time Support, Inc.
www.ontimesupport.com
(281) 296-6066
Join the Metrology Software discussion group METLIST!
http://www.ontimesupport.com/cgi-bin/mojo/mojo.cgi
"One World, One Web, One Program" - Microsoft Promotional Ad
"Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler
Many thanks for this tagline to a fellow RGVAC'er...
> -----Original Message-----
> From: Tothwolf [mailto:tothwolf@concentric.net]
> The video really was nice for its day, but a lack of texture memory
> somewhat limits it for today's graphics intensive software.
Well, on one hand, yes, but on the other hand, I like my Indigo 2 Elan with
no texture memory just fine. I'm also considering trying to dig up a
reality engine for the thing, at which point it would have texture memory.
> What color is the wrap-around part on the front/top of the
> machine? The
> standard colors that I'm familiar with are; blue for a VGX,
> red for a GTX,
> and green for GT.
It's blue.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
There was an analog CPU meter on a PDP 11/70 in the Computer Graphics
Lab at UC San Francisco back in the late 70's. The meter was mounted
in the middle of a large black & beige plastic rack fill-in plate. I
thought it was hilarious, and very cool. It has to be an analog
meter.
I dimly remember seeing the schematic. The meter was wired up as a
dwell meter, and hooked up to some signal in the CPU that indicated
that it was running, or at least running usefully. I can't remember
if it was the user-mode bit, or "not wait". IIRC Unix V7 ran an idle
process so the CPU never waited. I think it was the user-mode bit.
Anyway, the circuit was simple. They buffered the CPU signal,
smoothed it through a resistor and a capacitor, and that drove the
panel meter. You just have to work out the appropriate values for the
series resistor, capacitor and load resistor to get appropriate
scaling and timing.
I've always wanted one... wonder if there's an appropriate pin
to monitor on a TBird?
I talked to a man named Jon Ikoniak at temple.edu in PA not too long ago.
Seems he has a large collection of old DEC gear he inherited from a
predecessor. He said that a lot of the complete units have been gobbled up,
but there are still a few racks
left, and lots of drives and parts. They appear to be free. I was planning
on posting his email address, but after the last virus I got from my buddy
s.ring, contact me off-list for email or a voice number.
ja ne
Bob
Hi,
I've got recently 2 old, but very good NCD Xstations 88k & 88kP6
based on Motorola 88100 processor. It looks great, much better
than what they are selling know :-)
But unfortunately they are without Boot Manager EPROMS ...
Does anyone could help me and tell where I can find such EPROM
or just the image file which I can use to program one ?
As far as I know BM from HMX & HMXPro doesn't work because
it is made for R4xxx processor.
Darek
-----------------------------------------------------------------------
Tylko przez Nowy Kontakt porozmawiasz przez inne komunikatory!
Poznaj 100mln nowych znajomych! Kliknij! < http://kontakt.wp.pl >
Thank you for taking the time to do the translation. As it
turned out the bidding went too high for me. It's too
bad because I dont often see items like this offered
that often here in Europe. If this is an example
of the prices an item sells for on eBay, I think I
will have to depend on other means of finding an
affordable, classic.
Bill
Amsterdam, NL
On Fri, Dec 28, 2001 at 12:02:29PM +0100, The Wanderer wrote:
> Hi,
>
> The text says
>
> 2 VAX-VMS computers Digital 4000-200
>
> Model 660-QR) with the following config:
> 16Mb ram, KA660-AA cpu, 200MB HD, 296 MB TK70 tapeunit & network
> connection.
>
> With it belongs 2 VT420 terminals and console switch as well as all the
> necessary
> cabling. This machine is from the 89/90 era and is a solid machine.
> Both machines were running until the middle of last year as a production
> cluster
> under VMS control. It can however also run NetBSD.
>
> picture
<snip>