On December 29, Chad Fernandez wrote:
> 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.
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. :-)
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
Picked up some Apple IIgs boards yesterday and I need some help
with them. First is a Q-RAM GS memory board. This looks like it
has 4 meg on it and the only thing here I'd like to know is what the
2 switches are for and what sizes of simms will it support. Any
doc would be helpful.
There others I'm not sure what they are. The first is labeled as
"Quickie Controller" "Vitesse Inc." "P/N 121489" There is a cable
that goes to one of those round plugs like the the serial and printer
plugs on the IIgs. What's the official name of those connectors?
The other is from Apple but I don't know what it is. It has a cable
off the back to a 25 pin connector. On the board is "Apple
Computer 820-0153-A" Over one set of chips it says something
about "sandwich II". I don't know any of the chips on it (never was
great at IDing more than a handful of chips). Could post pics if it
would help.
Anyone know anything on any of these boards?
Thanks.
-----
"What is, is what?"
"When the mind is free of any thought or judgement,
then and only then can we know things as they are."
David Williams - Computer Packrat
dlw(a)trailingedge.com
http://www.trailingedge.com
I got a bunch of functioning seagate MFM drives available. ST-225,238 and 251
models as well as some big FH models. All survived a LLF too. Controller
cables also if you need them. Email if interested.
>I've heard of those too, and was thinking about getting one for some of the
>older macs I had, before I decided to get rid of 'em. IIRC they weren't the
>most elegant of things, and drivers were a problem.
I've used the Asante ones without a hitch for years. No driver problems
at all. You just need the Asante driver (last I knew, it was still
available on their web site, just burried).
The driver hasn't given me any problems up thru OS 7.6.1. I don't know
about OS 8+, but any Macs that can use OS 8 have an alternate means in
which ethernet can be added.
I have used the "Mini" which is the one that needs SCSI Bus power (and so
can't work with a Mac Plus), and I have used the "Micro" which is the one
that has the HDI-30 connector and is designed for powerbooks. The only
problem I have ever had with these is when I dropped one off a desk, it
stopped working. Other than that, there was a minor config problem in
using one with IPNetRouter, but that was a known issue with IPNR, and
IIRC, was actually a problem with IPNR and not with the Asante Driver
(they work fine with IPNR, it just needs to be on the local network side,
and not the internet side of a dual ethernet firewall/nat setup).
I am hoping to lay my hands on a "desktop" version shortly, so I can use
one with my Mac Plus (the "desktop" version has an external powersupply
and doesn't need the scsi bus power to run the device).
-chris
<http://www.mythtech.net>
>Would they call common network connectors "8 pin RJ-11"?
>Or would they call them "8 pin telephone connectors"?
Neither, 8 pin RJ's are an RJ-45 (11 is a 4 pin, comes in either standard
or handset sizes... can also have just 2 pins for "cheap" cords... 12 is
a 6 pin, same physical size as a standard RJ-11)
Ok, now you can hit me for being a wise ass ("not in the face, not in the
face" -Arthur "The Tick")
-chris
<http://www.mythtech.net>
On December 30, Pete Turnbull wrote:
> > My understanding is that Centronics was the first to use this type of
> connector on its parallel printers, so
> > when it became the standard type connector the name stuck.
>
> No, Tony is correct. Just because a name is commonly (mis)used in a
> particular way, doesn't mean it's correct, especially in catalogues. This
> discussion has come up before in relation to "DB9" connectors etc. A
> Centronics connector is a specific size, 36pins. The other sizes (14, 20,
> 24, 50, etc) are NOT Centronics connectors. The 24-way is sometimes
> referred to as an IEEE-488 connector. Does that make all the other sizes
> IEEE-488 connectors too?
>
> The common misuse is fairly recent, too. 50-pin conectors in that shape
> have been around for a long time, as SCSI connectors, as telco connectors,
> and for datacomms. Only in the last 5-8 years have I seen them referred to
> as Centronics.
It has always been my understanding that the proper way to refer to
one of these is by the name "amphenol connector".
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
Maybe one of you can help this guy out....if so, please reply directly to him.
Jeff
>Status: U
>From: g25wytak(a)aol.com
>Date: Sun, 30 Dec 2001 19:38:31 EST
>Subject: information
>To: jhellige(a)earthlink.net
>
> My name is George, and I have a Sharp
>PC-1250A Pocket computer and I am looking for the owner's manual and
>the BASIC Programming manual. I am hopeing that you may be able to
>help me.
> Thank you for your time
>
> e-mail-----------g25wytak(a)aol.com
--
Home of the TRS-80 Model 2000 FAQ File
http://www.cchaven.comhttp://www.geocities.com/siliconvalley/lakes/6757
On Dec 31, 16:47, Richard Erlacher wrote:
> EEEEK!!! It's not a "DB-9"!!!
Exactly my point :-) And that's pretty much my reaction when I hear
people call things Centronics, that clearly aren't.
--
Pete Peter Turnbull
Network Manager
University of York
On Dec 30, 14:01, Zane H. Healy wrote:
> I've no idea how on-topic it is, but... This last week I rescued a
"Asante
> NetExtender Hub" from the trash. In looking at it, it would appear to be
a
> combination Ethernet Transciever/4-Port 10BaseT Hub (yet it's smaller
than
> most 10BaseT Trascievers).
>
> Is it what I think, or is it something different.
It's a small 5-port repeater, with one of the ports being AUI. It's meant
to extend an existing hub, but it can be used as stand-alone. It's
line-powered, too, I think. So you might need to have something plugged
into the AUI port (eg a computer with an AUI drop cable).
--
Pete Peter Turnbull
Network Manager
University of York
On Dec 30, 10:40, Ian Koller wrote:
> All right, I've got one for the international users ...
>
> Can anyone fill in or add to any of the international
> extensions you sometimes see on URL's ? The ones I'm
> aware of ( but still have some blanks in ) so far are ...
.ch is Switzerland, .cn is China. I don't know about .fm.
.ru is Russia. .ro is Romania
Just look up the ISO 3166 code list, or the list of ccTLDs (country code
top level domains):
http://www.iana.org/cctld/cctld-whois.htm
--
Pete Peter Turnbull
Network Manager
University of York
I've no idea how on-topic it is, but... This last week I rescued a "Asante
NetExtender Hub" from the trash. In looking at it, it would appear to be a
combination Ethernet Transciever/4-Port 10BaseT Hub (yet it's smaller than
most 10BaseT Trascievers).
Is it what I think, or is it something different.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
> On the other hand, Linux might support the old stuff like
> this much better.
Linux does indeed have drivers for the 3c515, written by Don Becker (just
like almost every other network card driver in Linux). Web page for the
driver is at http://www.scyld.com/network/3c515.html. I have never used
them.
Ken
Hi
I have a mint condition CPT 9000 (J-Laser) Circa 1988. It is in original condition with Ventura operating in full screen mode. Any offers ?
Westward_Jersey(a)msn.com
OK... first of all, let me say that an XOR box weighs a ton. Second,
here's what I have - more cards than a single computer needs. I wish
I hadn't given away _all_ of my 68K S-100 stuff to a friend years ago
(but at least it's in good hands)
In the backplane when I got it:
o COMPU/TIME UFDC-1 floppy disk controller, c. 1983
Labelled jumpers for drives A-D, each with "5/8", "S0" and "S1"
1 34-pin connector
1 50-pin connector
WDC FD1795PL-02 FDC chip
no docs
o COEX 64K static RAM board, c. 1984
32 Hitachi M58725P 2Kx8 SRAM chips
no docs (but jumpers are labelled)
o COMPU/TIME SBC-880 CPU board (c) 1980
no CPU chip
Loose boards...
o QT Computer Systems RAM+65 SRAM board, c. 1981
32 2114 SRAMs (16K total)
missing IC49 (near the S-100 fingers, probably a 74LS240 or 74LS244)
labelled DIP switches
no docs
o Vector Graphic 8K SRAM board, c. 1980
64 2102 SRAMs
no docs
o Seals Electronics SRAM board, (c) 1976
64 2102 SRAMs (8K)
no docs
o SSM VB1C video card, c. 1980
docs
o SSM VB2 video card, c. 1979
chips still under plastic
docs
o Cromemco TU-ART Digital Interface, c. 1982
2 parallel
2 serial
NIB
docs
o Vector Graphic Bit Streamer serial card
8251 SIO chip
no docs
o MITS 88 UIO "Universal I/O Card"(?) c. 1977
M6850
AY-5-10134
26-pin Berg-styled connector
10-pin .154"(?)-spacing single-row connector (P-2)
no docs
o Unknown-brand mystery card (video?), c. 1979
8212
2 x 2708 EPROM (each marked 'FW II Gen', one with down arrow, one up)
4 x 2114-3 SRAMs
6-pin .1"-spacing single-row connector
U42 missing (24-pin .6" DIP)
no docs
o SSM CB1A CPU board, c. 1980
INS8080A
2 x 8212
2 x 2708 (marked "0-3V" and "4.7V")
2 x 2114
docs
o SSM 8080 Monitor V1 docs
command summary
listings
So, all in all, a good night's work. I'd love to learn more about
what I have, especially the stuff with no docs. Some of the docs
I do have, have schematics, but some of it is assembly and rudimentary
test/programming instructions.
I would appreciate any and all tips to online versions of docs for
this stuff. I would also appreciate any tips for getting an OS for
the box with its COMPU/TIME cards. I suppose one way would be to
receive a 5.25" image, reconstitute it and boot the system off of
mini-floppy, then format a disk or two on the 8" floppies and go
>from there.
-ethan
__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
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For Sale or ???:
DIGITAL RAINBOW 100+ COMPUTER
This early 1980's machine is designed to boot DOS, CP/M and as a DEC Terminal.
CPU - Model PC100-B2, Serial #WFC3514 - with dual 5.25" floppy drive and
full height hard drive
Colour Monitor - Model VR241-A, Serial #Y31-008107 - with video cable
Keyboard - Model LK201AA, Serial #B033602238 - with cable [plugs into video
cable]
Printer - Model LA50-RA, Serial #TC73817A - with printer cable
Circuit boards in CPU are as follows:
5416206 5416205-01C1 [PC100-B MOTHER BD]
5415961 5015960-01C1 [PC100B MEMORY EXTENSION]
[27 sockets for DRAM; 9 populated with 50256-150 chips]
5415688 5015687-01J1 [No description on board]
5415482 5015481-C1P1 [PC100 RX50 CONTROLLER] [Floppy Drive]
5416019 5016018-A1 [PC100 RD51 CNTLR] [Hard Drive]
The hard drive is a Seagate ST-412.
No documentation.
No diskettes.
Includes 3 power cords.
In working order (except do not know how to test printer which seems to
POST OK).
CPU will boot from hard drive into CP/M but not DOS.
Plastic cases are quite suntanned (i.e. yellowed) except printer.
Pictures of the machine may be viewed at
http://members.shaw.ca/ajwotherspoon/rainbow/.
Located in Victoria, BC, Canada.
Shipping (including cartons), insurance and customs broker (if required)
are your choice and cost.
Using a bathroom scale the approximate weights are:
CPU - 32 lbs.
Monitor - 36 lbs.
Keyboard - 4 lbs.
Printer - 20 lbs.
Cables - 4 lbs.
Total - 96 lbs. (plus shipping cartons)
I have a box that could be used for the printer if packed in Styrofoam peanuts.
The hard drive should probably have its heads parked before shipping but I
will need instructions/software.
This is a collector's item, I am sure, but I have no idea as to its value
and I am not a collector. It was purchased new here in Victoria from
Computerland about 1983. I found it at a garage sale a few weeks ago. I
would hate to see it scrapped but I can't store it much longer! I will not
separate any components - it's all or nothing!
For my efforts I would like a few dollars in addition to the
shipping/insurance but not an outrageous sum. At www.omnicorp.net/dec.htm
(in New Jersey) I see the CPU is listed at US$85, the monitor at US$95, the
keyboard at US$50 and the printer at US$75 (all tested and guaranteed). I
am not looking at anywhere near these prices.
For further information or to make an offer please send email.
This machine was posted on December 19, 2001 in the comp.sys.dec.micro
Newsgroup and I have had one expression of interest so far.
Alex
On December 29, Ethan Dicks wrote:
> A buddy of mine needs a couple of 2Gb 1" SCSI drives. I have both
> Quantum XP32150s and ST32550Ns available. Are these drives essentially
> equivalent, or is one better than the other?
I can't tell you anything about the XP32150s, but I've set up probably
three hundred ST32550Ns and have had very good luck with them. Their
write caches ship set to "disabled" by default, though, so it's
usually a good idea to stick it on something that'll allow you to edit
the contents of Mode Page 6 to turn it on, if my memory is correct.
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
On my quest to get more "stuff" of a classic nature
I came across these items on eBay in Germany.
http://cgi.ebay.de/aw-cgi/eBayISAPI.dll?ViewItem&item=1311492128
Now, I do not speak German and in fact know very little
about VAX's in general. But for some reason the notion
of having one is appealing. Also, these items are
"relatively" close (me being in Holland).
Time is running out on these but it looks like they
have a minimum acceptable bid. Does that mean that if
the bid is not met you can negotiate a price outside
of the auction? (I don't know much about eBay either).
How do they look to you VAX owners/operators?
Bill
Amsterdam, NL
If anyone is interested, I saw in at the local thrift store 4, what
appear to be brand new, Data Technology DTC2278V2 VESA Local Bus Multi IO
Cards. They have two serial, 1 parallel, FDC and IDE.
I think the price was $10.00 per card (I didn't write down the price in
my infinite wisdom, and I saw them about 6 hours ago, so like most of the
rest of my day, the info is slipping out of my head... but I think it was
$9.99).
I don't care about making money off them, so the cards will be actual
price (price + 6% NJ tax), plus shipping. Figure they will be about 1 lb
when packed, shipping from 07450.
If anyone wants me to pick one up, let me know (I remember there was a
VESA discussion going on here not too long ago, so I figured some of you
might have an interest in one)
-chris
<http://www.mythtech.net>
I've got a number of IBM SCSI drives from 80-200 meg that work just fine as
well as a whole bunch of 5.25 floppy drives from different manufacturers in
both 360k and 1.2m capacities and I hate to just toss the stuff. Anybody have
a need for them?
--
On December 29, Sellam Ismail wrote:
> > Which aren't what you want. But let me heartily recomend Clipper.
> > It compiles 99% of dBase programs and more. The 2 features I really
> > liked of Clipper where that it worked like a real compiler (ie,
> > compiled to .obj files, linked to .exe. Back in the day I used a 3rd
> > party incremental linker which saved much time during compiles) but
>
> Yes, I used an incremental linker as well ("Blinker" is what it was called
> if I'm not mistaken). It made a tremendous difference on a 286 :)
I used "tlink" (came with Borland compilers if memory serves) for
linking clipper programs. It was a very good linker.
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
I will contact the earliest respondent off-list.
-ethan
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On Dec 29, 12:53, William Donzelli wrote:
> 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
> 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!).
Do most American dishwashers start with hot water? Most European ones
start with cool water and heat it as they run.
--
Pete Peter Turnbull
Network Manager
University of York
http://www.siconic.com/crap/PC270014.JPG
I couldn't resist ;)
(For those without the benefit of a GWB, it's a photo of a game I just
bought at the toy store called "eBay Electronic-Talking Auction Game" :)
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
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
__________________________________________________
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Send your FREE holiday greetings online!
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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
__________________________________________________
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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>
> 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.
I'll Second that!!!
> >> 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?
Only for a few years :^)
> >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/
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 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.
Zane
Hi,
I've got recently 2 old, but great :-) NCD Xstations 88k & 88kP6
based on Motorola 88100 processor.
Unfortunately theirs network cards are without Boot Manager
EPROMS ...
Does anyone could help me and tell where I can find such EPROM or
or just the image file which I can use to program one ?
BM from HMX & HMXPro doesn't work because it is made for R4xxx
processor.
Darek
-----------------------------------------------------------------------
Zapro? znajomych na czata! Wy?lij SMSa z nowego czata WP!
Czat.wp.pl - Jedyny czat z ludzk? twarz? < http://czat.wp.pl >
Well, I made room on my bench, opened up my grubby, new-to-me 4000/60,
and it only has one of the two RZ24 drives my partner paid for. I've
fired off email to the vendor asking him to ship the drive and mounting
hardware, but I don't expect that he'll have either.
What does DEC call the flat metal plate that the hard disk bolts onto?
"Mounting bracket"? Does anyone have a spare? I figure I'll have to
settle for a newer narrow SCSI drive and the price of the mounting
hardware, if it's available.
Lastly, while I'm wading through all the Google hits, are there any
good reference sites for this box? This is the first 4000 I've been
into, and I'd like a map.
Doc
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.
Thanks and Greetings
Sergio
-----Mensaje original-----
De: Pete Turnbull <pete(a)dunnington.u-net.com>
Para: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Fecha: viernes, 28 de diciembre de 2001 21:04
Asunto: Re: What did you ask "Santa" for this year.... : )
>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
>It might help. Assuming the modular keyboards are the same. :)
<http://www.mythtech.net/wysekey.gif>
Sorry for my very crude drawing.
The RJ has a cable hanging off it that ties to CPU chassis for ground, so
the RJ side really ends up with 5 connectors (4 in the plug, plus 1 for
tail)
-chris
<http://www.mythtech.net>
There were very few *ISA* 10/100 NICs ever made. The 3C515 is one of
them. One of the local junk shops has a couple behind the counter.
They are marked $20. I have no idea if that's a reasonable price or
if they are gouging (they also have some used RTC8139-based boards
next to them for $7, for comparison).
Holger Kruse was considering adding support under Miami for a 3C515
on a GG2 Bus+, but at the time, 3c515 boards were unobtanium, and
they wouldn't be fast, anyway. The only reason to really use an
ISA 10/100 card is if you have a non-PCI machine, and your network
infrastructure is 100 *only* (I have a 4-port 100BaseT hub from NetGear,
for instance - it was cheap at the time).
Just curious, but not curious enough to drop $20 up front.
-ethan
__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
http://greetings.yahoo.com
>Correct me if I'm wrong, but can't you simply cover the hole
>(with tape) on a 1.44mb floppy to make a 720 mb diskette?
>Obvisously the hole is the one that isn't the write protect
>one (i.e. doesn't have the slide tab).
I can tell you, ignoring all the "technical" issues, based purely on
experience... this is a BAD idea. It will work... for a while, but you
are almost guarenteed that the disk will fail eventually. I don't have
ANY that have worked long term... and I still do this trick from time to
time when I need a 720k disk briefly... it is always easier for me to
just convert a 1.44 then it is for me to dig out a 720k.
They usually work long enough for me to copy a file to and from the
disk... but within a few reads and writes, it will die. Reformatting will
refresh it for a few more reads and writes... but again, it will die
shortly.
So if your data is important, DON'T do this.
There are companies that still sell DD disks brand new, I would just hunt
one down, and buy a bunch.
-c
Hello, all:
Happy holidays to all!
I made a quick stop in Northern New Jersey this morning for a load of AIM65
stuff from a guy who used to manufacture a custom insurance rating computer
that used the AIM as the base board. In short, this is what I got:
* 8 AIM65 main boards in various states of cannibalism. 5 have displays.
Different manufacturing dates, one a late-model with two high-density RAM
chips in place of the 2114s.
* Bag of printer parts and about 5 printers in various stages of
rebuilding.
* Case+ of paper
* 2 Memory Plus boards
* 1 EPROM programmer
* 5 spare keyboards, all missing keys
* 3 metal bases
* 5 blow-molded case tops
* Assembly hardware and related items
* 4 full tubes of 2114 RAM chips
* 7 full tubes of 2532 EPROMS
I will be "auctioning" off to the group the bases and tops as well as some
of the main boards. I will keep a small amount of the spares for my own AIM
and all of the chips.
I also have three books up for grabs:
* A Programmer's Viwe of the Intel 432 System (Organick)
* Inside Commodore DOS (Immers)
* MicroC/OS-II RTOS book with disk (Labrosse)
If anyone is interested in any of the three case sets, some of the spare
keyboards or main boards or any of the books, please contact me off-list.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
> -----Original Message-----
> From: Chris [mailto:mythtech@Mac.com]
> I don't know about the terminals, but I have a Wyse 386 that was
> originally designed to use a modular RJ-11 keyboard plug. Someplace I
> have an adaptor that converts it to a DIN-5 for use with an
> AT keyboard
> (moves the 4 RJ pins, and has another wire that clips to the computer
> frame to provide ground).
> If it is of any help, I am sure I can find the adaptor and
> tell you the
> pinout for it.
It might help. Assuming the modular keyboards are the same. :)
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
>I have a WYSE terminal with a modular keyboard receptacle, and a keyboard
>with a DIN-ish plug. Any chance I can crimp a modular end on it and use it?
I don't know about the terminals, but I have a Wyse 386 that was
originally designed to use a modular RJ-11 keyboard plug. Someplace I
have an adaptor that converts it to a DIN-5 for use with an AT keyboard
(moves the 4 RJ pins, and has another wire that clips to the computer
frame to provide ground).
If it is of any help, I am sure I can find the adaptor and tell you the
pinout for it.
-c
> -----Original Message-----
> From: John Foust [mailto:jfoust@threedee.com]
> What Mark is saying is that there's at least two different kinds of
> rendering, and people sometimes chose SGIs for one reason but
> not the necessarily the other. One, you might like to have
> fast processors and hardware acceleration of textured polygons
> for the real-time view of your 3D data. Example users would
> include military simulation, virtual reality, flight simulators, etc.
True enough. Also true that these days, SGI-style graphics hardware is
usually more necessary for the "scientific visualization" crowd, than for
animation. Most animation I've seen done recently was (at least in bulk)
rendered non-real-time, probably on a render-farm of some kind.
> The second group, 3D computer animators making special effects
> and movies, they not only need the real-time stuff during
> the modeling stage, but they also appreciated the raw horsepower
> when it came to rendering, which is usually a purely software-based
> operation.
Of course, originally, SGI (and possibly Intergraph) was the only game in
town ;) These days other manufacturers have graphics that may be "good
enough," especially if you can't afford an (what is it now?) "Infinite
Reality 2," or the like.
> If you pick up an old SGI box, if you were extremely lucky
> you might get an old animation package that does the modeling
> and the rendering. They were usually keyed to the SGI box's
> unique CPU ID. You might get the CDs but no key, and you're
> out of luck.
Unless you have a debugger and some spare time ;)
> I must remind the younger folks out there that as recently
> as less than ten years ago, you'd see animators taking out
> six-figure loans to buy the SGI and software they needed to
> run their shop, for just one or two animators. :-)
Again, SGI was likely the only thing you could get as recently as "less than
ten years ago" that had the graphics power for even the "modeling" stage.
People have begun to take 3d acceleration for granted now that they have
their Matrox GWhiz 5, or their Nvidia TTL 3, or whatever. :) Nobody stops
to think where people got the power to do the kinds of operations for which
these things allow you to use a standard (read: piece of junk ;) intel
peesee (and more) several years past.
> On the other hand, SGI distributed lots and lots of source
> code and demos, and had a few unkeyed applications that may
> run on the box you got if you get the CDs. These include
> real-time interactive demos and apps. They'd give away
> these annual "Hot Mix" CDs at trade shows by the stack.
> I have a bunch I should eBay someday.
Got one or two, myself, and they're amusing if nothing else. I've also
downloaded the "FSN" filemanager from SGIs FTP site, which is entertaining.
(for the uninitiated, this is the 3d file-manager that they showed in
"Jurassic Park."
> Given that SGI Indy boxes are going for less than $100 these
> days, if you ever had an itch to see what they were all about,
> you no longer have any excuses.
Personally, I wouldn't get an Indy with 8-bit graphics if I could help it,
which means you'd pay slightly more than 100 in most cases, but that's still
not bad at all.
On the other hand, Indys don't have much graphics horsepower. I'd recommend
something with at least a Z-Buffer, myself. Indigo2 is a really good deal
these days.
... and let's face it, a graphics subsystem isn't a graphics subsystem
unless it takes at least three boards ;)
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
! .... but after
! two days of searching, I guess I _will_ have to go do it myself.
!
! Somewhere in my junk boxes, I have some .5" tall by 1.5" wide signal
! meters that I think I pulled from a dead CB radio, c. 1978 (pre-40-
! channel). The plane of the needle swing is parallel to the floor,
! and the needle has a 90-degree bend at the end, so you see a .2"
! tall vertical line slide from left to right as the signal improves.
! If I can find it, it'll mount perfectly in a 3.5" blank faceplace.
!
! Now to excavate the old parts!
This is a neat project... keep us informed... :)
--- David A Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- mailto:david.woyciesjes@yale.edu
--- (203) 432-0953
--- ICQ # - 905818
Hello,
Can anyone tell me how different the WYSE keyboards with the DIN-style plug
are from the keyboards with the modular plug?
I have a WYSE terminal with a modular keyboard receptacle, and a keyboard
with a DIN-ish plug. Any chance I can crimp a modular end on it and use it?
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
! >Many of the HP cards have paper stickers indicating
! >part number, revision, etc. Any thoughts on preserving
! >these through a dishwasher cycle? Or should I just
! >gently hand rinse? THanks!
! >
!
! I'd think ANY cleaning would put them at risk. If you don't
! want to loose
! the information, better document it somewhere.
What about re-creating the labels, using the Avery label sheets?
--- David A Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- mailto:david.woyciesjes@yale.edu
--- (203) 432-0953
--- ICQ # - 905818
> I would not pay more than EUR 50,- for a MV4k200 like that. Even EUR
> 50,- is high for only 16MB RAM, 200MB disk, TK70 and no other
> peripherals.
501 Euros, final price of the auction.
If somebody in the USA can send me a pallet of them for
$100 everyone (final price shipping included) to the Madrid airport
to put them in auction, I shall be very happy. With this range of prices
I even can earn money.
It's incredible.
Sergio
On Dec 27, 8:14, Ethan Dicks wrote:
> --- Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
> > It's a commercial 4-layer board. The legend says "Tellima Technology
Ltd
> > (C) 1995", "PC03753"...
>
> I had no idea people were making OMNIBUS boards in 1995. That's amazing.
> There are still machines in commercial use, but most of them are so deep
> inside something else that nobody knows how to upgrade them, let alone
> _want_ to change out the old for the new.
>
> I see they are a British company (http://www.tellima.co.uk) I guess that
> means that their products will be a wee bit less common on this side of
> the pond.
They seem to be rare enough over here! I found Tellima's web site a while
ago, and mailed them about the board, but so far haven't had a reply.
They're only about 40 miles away from me, so if I get any encouragement
>from them, I might pay a visit.
--
Pete Peter Turnbull
Network Manager
University of York
Hello Everyone,
I'm cleaning again!
-Inside Netware 3.12 5th Edition New Riders Publishing (cd-included)
-Microhelp Uninstaller 4 on 3.5" floppies (no box)
-Quarterdeck Cleansweep 95 on 3.5" floppies (no box)
-Norton utilities for Win95 ver 3.0 (cd and 2 sets of floppies, no
manual)
-Quicken 6.0 for DOS on 360K floppies in the box (I copied the floppies
onto 1 3.5" floppy too) I'm not sure if this is Y2K compliant!
-Norton Utilities 8.0 for Win 3.1 and DOS Manual only!
-Quarterdeck Manifest manual only!
-Quarterdeck QEMM 8 for DOS, Win 3.1, and Win 95 (in the box)(It saved
my info in the "registered too" section, but my name doesn't seem to pop
up, I used something else)
-Basic Apple Basic by James S. Coan Hayden Book Company
-Word Perfect 5.1 for Windows "Trade Up from DOS" (It will install
without a current install of the DOS version) On 5.25" floppies in box
Buyer pays shipping rounded up to the nearest dollar..... I'll probably
ship USPS Priority since they'll give me boxes. Please reply off list.
Chad Fernandez
Michigan, USA
On Dec 27, 7:03, lee courtney wrote:
> Many of the HP cards have paper stickers indicating
> part number, revision, etc. Any thoughts on preserving
> these through a dishwasher cycle? Or should I just
> gently hand rinse? THanks!
Hand rinse will do almost as much damage to some labels as the dishwasher.
If I wanted to preserve the labels, I would try to take them off. Before
you do any of this, make a note of what each one says and exactly where it
was!
If they're really old, and the glue has dried out, they may come off quite
easily, with a little assistance from a scalpel blade or a thin knife, slid
under the label. If they're not quite so dried out, white spirit or label
remover may soften the glue enough for you to peel them off carefully. Try
a corner of *one* first, in case your solvent makes the ink run. Be
patient, it takes a while.
--
Pete Peter Turnbull
Network Manager
University of York
With the recent discussions of the Be liquidation sale, I was wracking
my brain for the project/website of an *analog* CPU load meter. Someone
out there wrote a Linux driver to spit out CPU load on the parallel
port, to which is attached a simple ladder-type D-to-A and an analog
panel meter for CPU load.
I can *not* find this again, even after an hour of Googling, Altavista-ing
and Freshmeating. Anybody else remember this? Got any URLs?
It would be a blast to watch the needle peg when, say, you fired up
a CPU pig of a game or were digesting /usr/spool/news or some such.
It would be less interesting on a system running, say, Seti-At-Home
where the load is more-or-less constant.
-ethan
__________________________________________________
Do You Yahoo!?
Send your FREE holiday greetings online!
http://greetings.yahoo.com
I decided to take a trip down to Fort Wayne today, to one of my favorite
surplus shops.
I found a box of SCO Open Desktop 2.0.0. I don't know anything about
this specific version, but I thought it interesting since it is quite
removed from the current Caldera offerings. It appears to never have
been installed. It only has 6 main disks.... 3 3.5" floppies and 3
5.25" floppies, that have been opened, but I find it hard to believe
that they are anything more than boot and drivers disks. It also has 2
more disks, one of each size, these are unopened, and I don't know what
they are. I assume that the bulk of the OS is on the Qic24 tape, that
is unopened. Unfortunately, I only have two tape drives..... audio
cassette, and VHS, and those aren't for the computer :-)
I did try the 3.5" boot floppy on two of my computers..... it stops
during the hardware detect portion.... maybe because it can't find a
tape drive?
Chad Fernandez
Michigan, USA
All,
When did the the BeBox originally come out?
Check out http://www.be.com ... On January 16th the is going to be a
public liquidation auction. Maybe there will be some BeBoxen?
Happy Holidaze,
Bryan Pope
On Dec 27, 8:22, Ethan Dicks wrote:
> --- Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
> > How different is an M865? Is it only current-loop?
>
> It is different. There is no 40-pin BERG connector - it has a set of
> split lugs line a W-076 card and a 18" cable with a standard Mate-n-Lok
> connector as seen on KSR-33s and VT220s, etc. I do not recall if I have
> any docs on it, but except for the 20mA/EIA differences, I think it's
> substantially similar, logically, to the M8650. It's a console port,
> only, permanently set to 03/04. I forget if the M8650 is modifyable or
> not.
The M8650 is, the jumpers on the split lugs near the 'A' fingers set the
address.
Sounds like you might want something like a DLV11-KA -- that's a 20mA to
EIA converter in a little black box about 4" x 2" x 1/2". Actually, that
would be overkill; it has a 110 baud generator, reader-run control, and
other options. It's meant to add 20mA capability to EIA-only devices like
a DLV11-J but it can be used for any RS232-20mA conversion.
--
Pete Peter Turnbull
Network Manager
University of York
>
>Many of the HP cards have paper stickers indicating
>part number, revision, etc. Any thoughts on preserving
>these through a dishwasher cycle? Or should I just
>gently hand rinse? THanks!
>
I'd think ANY cleaning would put them at risk. If you don't want to loose
the information, better document it somewhere.
SteveRob
_________________________________________________________________
Chat with friends online, try MSN Messenger: http://messenger.msn.com
Okay, just bear with me. At one time I had Dec By The Ton. I had Systems
in every room of the house save the Loo, because I was afraid the steam
>from the shower would hurt Things. And, in the Fulness of Time, I sold
my Ton's O' Dec Stuff (and everything else for that matter) and took a job
in a Furrin Country.
My contract is ending, and I am not going to renew it. I will return to
the US to take up yet another New Life in February.
"So what's yer point? Get *on* with it, already..."
AHEM.. I of course found out that anyone can bury themselves in
hardware with no problem at all. That being said, I can't help the fact
that I'd like to own a System again. I'd like to buy (and ship) a
*WORKING* PDP-11/44 system of some description. Ideally, I'd like to have
a >1MW machine with EIS and CIS, one (or two) RL02s, an RX02, and an SMD
of some reasonable capacity... four or eight serial lines, and a 9 Track
drive w/interface, LA36 and a real VT100 (or two or three)... operating
system of course to be wiped completely off any media and I'll write my
own in assembler. ;}
Again, the machine has to be basically working, ie. booting an OS from
mass storage without regular hiccups/glitches. My wish includes media and
doc, engineering prints, etc. Major assemblies for spare parts is also on
the List. I don't expect find the whole thing in one place (wouldn't
*that* be nice) but the core components have to already integrated and
'playing well' with each other. That would be CPU, SMD, RL02, SLU and
enough room on the backplane to flesh it out further.
I am willing to spend money on this, but on a strictly hobbyist level.
I'll be relocating to the Southwest, most likely Arizona, but my schedule
will be flexible for making rescue roadtrips.
QST QST QST QST:
ATTN: classiccmp hams... I will be at Dayton this year... let's
organize a classiccmp QSO... whatsay????
I thought to give a heads-up to anyone in the (sort-of) western US as to
my Wishlist. I am not interested in any other models than the /44, and,
if I can control the addiction this time, I'll stick with a single nicely
restored and well-maintained System, rather than a house full of racks
gathering dust.
Why do I feel like I just fell of the Wagon??
;}
Cheerz Y'all
John
Hi everybody.
Still working on those MIPS RISComputers. I've gotten all three to power-up
and self-test at least once.
The one that's giving me problems came to me marked "bad power supply." Not
being one to believe the markings, I tried it, and it powered up fine, did
the whole self test, and (due to the lack of any disks) just set there, as
you'd expect.
So here's the deal. I powered it off, and then back on. The second time,
it didn't seem to be getting any power at all -- not even fan-buzz.
Would I be right to suspect a loose joint or the like? Is there anything
else that might cause the power supply to work sporadically?
What's the best way to attack this and get the power-supply fixed? Should I
just dig out a multimeter and start checking connections?
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
(Grumble).....
I'm getting conflicting information regarding the ability to boot the 4000
>from SCSI devices attached to the KFQSA SCSI adapter. Some people say you
can't do it, some say they actually have done it.
I have a DEC RRD-43AA CD-ROM drive, and have it connected to an external
SCSI box with a cable from it to the KFQSA adapter. Onboard the 4000 are
two DSSI drives.
The 4000 is able to recognize and assign device identifiers to the ethernet
port and the two DSSI drives, but has no clue ragarding anything attached
to the SCSI (KZQSA) card.
Is there anything I need to do with the "VMB" to make it recognize the
CD-ROM drive, or am I missing a step?
I'm attempting to boot the 4000 from the CD-ROM and start the VMS 6
installation process.
Thanks!
- 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...
I'm looking for detailed module specs for the vaxstation 4000, and
probably for the decstation 5000/1xx.
I have a pile of 32M modules that my supplier thought work in a vs4k,
but they don't. While I can't find any references to the labeling,
y'alls' best guess seems to be that they are ram for a decstation
5000/1xx. I'd like to find out if the difference is something that can
be modified, to make them compatible with the VAX. Failing that, if I
can verify that they really are DS modules, I can sell them.
The SIMMs themselves are from several different lots, but the
common label, which looks like a DEC/Compaq P/N to me, is 33522947-001.
Lastly, what's a 32M SIMM worth? I've got a little over $25 each in
these. If they're worth that, I'll convert or sell them, if not I'll
return them as misrepresented.
Doc
> -----Original Message-----
> From: Stan Barr [mailto:stanb@dial.pipex.com]
> If you could attach an 8-inch disk to a PC (or a 5 1/4 inch
> one to a PDP)
> it _should_ be possible to create a boot disk using Paul Koning's FLX
> utility, which allows a PC to read/write and create RSTS disks.
Actually, you can do either, and my PDP happens to have 5.25" disks in the
first place. :)
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
At 12:55 PM 12/27/01 -0600, you wrote:
>So here's the deal. I powered it off, and then back on. The second time,
>it didn't seem to be getting any power at all -- not even fan-buzz.
>
>Would I be right to suspect a loose joint or the like? Is there anything
>else that might cause the power supply to work sporadically?
Best source for finding loose solder joints is to look at the board in
question...
I have a new rackmount slider kit for the IBM Netfinity 5100. This is the
kit that came with the unit so that you can rackmount it. The part number
on the box is 09N7484. It'll probably work with other cases in the 5x00
series.
Best offer by Jan. 2 gets it. Otherwise, it probably gets recycled.
Please reply privately (I know you will ;)
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
> -----Original Message-----
> From: Sellam Ismail [mailto:foo@siconic.com]
> Ok, cool. How can I get RSTS/E boot media? How do I find
> out what device
> my 11/34 will boot from? It has an RK05, RK05f and two 8"
> floppy drives.
I don't know. :) Let me know if you find any. I have an 11/75 that would
love to run RSTS/E.
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
> -----Original Message-----
> From: Sipke de Wal [mailto:sipke@wxs.nl]
> If it is a switching PSU you'll propably need to load it
> in order to have it function properly. I always use an old
> defuncty HD for this purpose .....................
> Chances are that if the load is not large enough it will shut
> itself down, while it may still be a OK PSU.
I thought that may be the case too, but one of the working units is missing
the tape drive (which this unit has...) and still functions properly.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
This may be a dumb question but...
Will RSTS/E (specifically) RSTS/E-V7.0/07 run on a PDP 11/34?
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
On Dec 26, 18:21, Ethan Dicks wrote:
> --- Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
> > > It's not cool like core, but did anyone ever come up with a modern
> > > battery-backed-up SRAM board?
> >
> > Yes, I've got one. It even has a connector to link to an interface in
a
> > PC, so you can squirt (or suck) data in (or out) directly.
>
> That's a cool feature. You got docs? Is this commercial or homebrew?
> How about a digital picture? 75dpi scan?
It's a commercial 4-layer board. The legend says "Tellima Technology Ltd
(C) 1995", "PC03753". It has a couple of surface-mount KM68100 SRAMs, but
the most prominent features are the two Actel 1020 FPGAs. It also has 6 x
8837 and 3 x 8838 interface ICs, a pair of 74HCT244's, 2 x 74HCT160 and a
74HCT161, a MAX695, a 16MHz oscillator, a 3V 1/2AA lithium cell, a littl
daughterboard with some inteface chips, and the 26-way header for the PC
interface.
The PC interface is a small 4-layer ISA card "PC03285-C", with a couple of
Actel 1010's, a few small SMDs, 2 x 74HCT160 and a 74HCT161, and a 26-pin
header on the backplate. Interestingly, it also has space for a 132-pin
SMD device, several smaller SMDs, eight ZIP devices, and a couple of 8-pin
miniDINs.
I don't have a scanner, at least not one that works. Nor a digital camera,
except my Indycams, which aren't exactly high resolution. I'll see what I
can do...
--
Pete Peter Turnbull
Network Manager
University of York
> -----Original Message-----
> From: Sellam Ismail [mailto:foo@siconic.com]
> Ah ha. Ok, so then my next question is, if I had some
> version of RSTS/E,
> could I read files on disks from other versions? Are they basically
> interchangeable?
I think it uses FILES-11/ODS-1, which means that you can share disks among
RSTS/E systems and RSX-11 systems. VMS will also read and write them if I'm
not mistaken. At least it should read them. VMS uses ODS-2 natively,
though.
I also have the FILES-11/ODS-1 spec in electronic form.
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
In a message dated 12/27/01 11:35:11 AM Eastern Standard Time,
erd_6502(a)yahoo.com writes:
> I found that. More than once. That's for an LED bargraph. I'm
> looking for a circuit that operates an old-fashioned galvanometer-
> style panel meter with a needle that swings from side-to-side.
>
> I can invent my own - a simple ladder D-to-A to produce a variable
> voltage out of the parallel port. I was hoping to save the math
> and use resistor values that someone else has calculated, but after
> two days of searching, I guess I _will_ have to go do it myself.
>
> Somewhere in my junk boxes, I have some .5" tall by 1.5" wide signal
> meters that I think I pulled from a dead CB radio, c. 1978 (pre-40-
> channel). The plane of the needle swing is parallel to the floor,
> and the needle has a 90-degree bend at the end, so you see a .2"
> tall vertical line slide from left to right as the signal improves.
> If I can find it, it'll mount perfectly in a 3.5" blank faceplace.
>
> Now to excavate the old parts!
>
> -ethan
>
>
Well, please let us know if and how you get this working. I would love to
have something like this as well!
-Linc.
In The Beginning there was nothing, which exploded - Yeah right...
Calculating in binary code is as easy as 01,10,11.
On Dec 26, 18:18, Ethan Dicks wrote:
>
> --- Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
> > On Dec 26, 14:20, Gunther Schadow wrote:
> >
> > > My first PDP-8 program is a memory test...
> >
> > Good idea. I meant to mention in my followup to Ethan, that the
> > diagnostics are also available, at
> >
> > http://pdp-8.org/papertape/
>
> Nice. Fortunately for me, I have several boxes of DEC diagnostic tapes
> (nothing unusual, but I'll check my list against what you have)
I don't deserve any credit for the tapes and docs online -- they're the
fruits of serveral other people's labours :-) pdp8.org is Aaron Nabil's
site, and David Gesswien provides the docs at www.pdp8.net
> At the moment, I think I have an M865 that works and an M8650 that may
> or may not work. If I'm forced to use 20mA, I guess I'll have to dig
> up a genuine IBM 8-bit serial card and mod it to switch it to current
> loop.
You probably know you can use an M8650 in RS232 mode. If you don't have a
BC01V cable wired for RS232, Doug Jones' site has an excellent diagram, and
a useful document explaining how to set up the baud rate etc (BTW, the note
about changing the capacitor value for baud rates other than 110 only
applies to current-loop operation). How different is an M865? Is it only
current-loop?
http://www.cs.uiowa.edu/~jones/pdp8/hard8e/
--
Pete Peter Turnbull
Network Manager
University of York
On Dec 26, 21:39, John Allain wrote:
> I recently bought 2 each of all the white LED's that Jameco
> sells. While *white*s are OT, they are nonetheless impressive.
> The light density, efficiency, color, and longevity they have is
> pretty amazing, to me anyway. Jameco rated them at 4 foot
> candles at 20ma, which seemed a little 'opto'mistic.
> I tried them out, and they reach near peak light at more like
> 180ma, getting just noticeaby warm. At 250ma they are
> 'uncomfortably' warm, hence question:
> Did they really mean 20ma? at that proportion they're
> putting out <10% peak, but 180ma is WAY above spec,
> Jameco's spec anyway. So I guess Jameco's wrong?
> Could I be loosing lifespan at this current? Maybe the
> not-too-warm test is good enough?
I had a look in my Farnell catalogue. Most of the white LEDs they stock
are rated between 400 and 5600 mcd (millicandelas) at between 20mA. 20mA
seems to be a standard current to quote the light output at, for most LEDs,
not just white. However, Farnell also give lots of other data, including
the maximum rated forward current, and the highest for any of the white
LEDs is 30mA (made by Infineon and Multicomp).
I don't think you should let them get warm :-)
--
Pete Peter Turnbull
Network Manager
University of York
I want to remove myself from this list as i no longer have an interest in this subject. The commands on the website do not work so can the list owner please remove or can someone give me some idea of how to do it. cheers
_______________________________________________________________________
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On December 26, Vintage Computer Festival wrote:
> This may be a dumb question but...
>
> Will RSTS/E (specifically) RSTS/E-V7.0/07 run on a PDP 11/34?
Dunno if this will be useful, but I ran RSTS/E v9.4 on a PDP11/34a
for a long time..
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
The PAL was introduced in 1978, Other types of programmable logic devices
were available earlier, (FPLA's for example)
Here is a quote from one of the PAL's inventors (Andy Chan -- now at
QuickLogic)
"MMI's PAL was designed to overcome the problems associated with FPLA that
made it difficult for end users. A proprietary programmer was necessary
and a cumbersome inputting process (creating the design in Boolean
equations, translating them into a bitmap and typing that into a machine
that generated a paper tape for the programmer to read) meant that if the
design didn't work, it was impossible to know at what step something went
awry. Our PAL was faster and used less power, but the main improvement
was in its ease of use, Chan said, noting that the first PAL chip was
introduced in 1978."
PCW
On Dec 26, 12:08, Ethan Dicks wrote:
> --- Gunther Schadow <gunther(a)aurora.regenstrief.org> wrote:
> Good idea. I have a couple of quick routines I use as a basic
> check-out, once I know I can read and write from/to field 0
> reliably - one is an inchworm for blinkenlights (or a counter
> for the -8/a)
I do that too. I also have a couple of very short toggle-in programs for
the console serial line, one of which echos what you type. The last item
I have that might be useful is a uploader that sends files, either plain
or papertape images, to the RIM or BIN loaders -- it's on Kevin
McQuiggin's page at http://highgate.comm.sfu.ca/pdp8/software/new-send.c
> > The third 16k board
> > plays the high fields 4 to 7, but it has a systematic
> > error masking out bits 6 and 7.
> Well... I doubt the core planes are bad, but I suppose it's possible.
> I would suspect the bus buffers first, then, depending on the exact
nature
> of the problem there are failure modes of the inhibit drivers that could
> whack your bits as they pass through a memory read cycle, but that's
> not horribly likely.
>
> The trick is to sit there with the schematics and generate write cycles
> and read cycles through the front panel as your trace the flow of bits
> through the memory.
I'd agree with that. It's more likely a logic problem than a core mat
problem.
> It's not cool like core, but did anyone ever come up with a modern
> battery-backed-up SRAM board? I'm thinking of discussions of a few
> years ago and talk about a quad-width OMNIBUS board w/2x62256 SRAMs.
> Cheap to make (not counting a 1 sq. ft PCB), but compared to what we
> used to pay for RAM...) and made with modern components. It may have
> all been discussion without even a schematic generated, but I had to
> ask.
Yes, I've got one. It even has a connector to link to an interface in a
PC, so you can squirt (or suck) data in (or out) directly.
--
Pete Peter Turnbull
Network Manager
University of York
On Dec 26, 14:20, Gunther Schadow wrote:
> My first PDP-8 program is a memory test, and I was glad I
> did it because I found a problem. My test goes through all
> memory fields and writes into each cell its address in the
> field. Then it reads that address out of each field again
> and so finds problems.
Good idea. I meant to mention in my followup to Ethan, that the
diagnostics are also available, at
http://pdp-8.org/papertape/
and the corresponding documentation is available at
http://www.pdp8.net/query_docs/query_all.html
The papertape images have headers, and the way the BIN loader works, you
need to strip the ASCII header but leave at least part of the top-bit-set
leader part at beginning and end. The "send" program I mentioned will take
care of that.
--
Pete Peter Turnbull
Network Manager
University of York
In a message dated 12/26/01 8:23:23 PM Eastern Standard Time,
lgwalker(a)mts.net writes:
<< A local general purpose mechanic who mainly works on Ski-doos in the
winter and pumps and everything else in the summer gave me a complete
Adam (!) collecting dust on the shelf, when I told him I collect computers.
He
mentioned he could use an old box to keep track of his parts inventory if I
had any spares. I volunteered to supply him with something that would serve
simple needs thinking of everything from a C-64 to an A2 or an XT to a 386
and that there must be 100s of programs that would be available. And no I
don't want to configure a Database program.
I did a Google search and found only the newest Gee-Whiz Winblows 9x,
2k, XP, and OSX programs, and while I haven't searched Simtel, out of
frustration I've decided to defer to the list about older programs to track
inventory and if it also has billing and labour, so much the better.
Any suggestions would be appreciated. It would serve as an example that
older machines don't have to be delegated to land-fills. This area is in
north-
central Manitoba,Canada and not exactly a hotbed of technology. The
temperature at present is -20 C, but the air is breathable. >>
I do have an inventory prorgam with pretty modest system requirements, but
pretty much seems to be designed for home inventory and such.
If I was closer, it'd be mine... :-(
--- David A Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- mailto:david.woyciesjes@yale.edu
--- (203) 432-0953
--- ICQ # - 905818
! -----Original Message-----
! From: Dave McGuire [mailto:mcguire@neurotica.com]
! Sent: Wednesday, December 26, 2001 3:41 PM
! To: classiccmp(a)classiccmp.org (E-mail); NetBSD/Vax Mail List (E-mail)
! Subject: Re: FW: VAX 3900 Free to Good Home
!
!
!
! *sigh*, this has to happen a month and a half after I move out of
! Laurel... :-(
!
! -Dave
!
! On December 26, David Woyciesjes wrote:
! > I'm sure someone here would want this...
! >
! > Subject: VAX 3900 Free to Good Home
! > Date: Tue, 25 Dec 2001 22:40:56 -0500
! > From: Chuck McCrobie <mccrobie(a)cablespeed.com>
! > Organization: Posted via Supernews, http://www.supernews.com
! > Newsgroups: comp.os.vms, comp.sys.dec
! >
! > As a testament to Digitial engineering, I have a VAX 3900
! that's been
! > sitting in my garage for 3 1/2 years that just booted up!
! >
! > CONDITIONS:
! >
! > Machine must be picked up in its entirety - ALL OR NOTHING
! > Local pickup only - I don't want to ship this beast
! >
! > LOCATION:
! >
! > Laurel, MD 20724
! >
! > You will need a large sedan, pickup, or similar vehicle.
! The external
! > frame has been modified to come apart, so loading it will be easy.
! >
! > PARTICULARS:
! >
! > VAX 3900 - CPU - (Big cabinet) KA655-AA (M7625-AA)
! > 32 MB RAM - MEMORY - MS650-BA (M7622-A)
! > DESQA-SA - Ethernet - (M3127-PA)
! > CXY08-M - 8 line Terminal controller - (M3119-YA)
! > USD 1108 QBUS->SCSI Controller - in passthrough mode
! > * This is a NON-DISCONNECTING controller - yes, I
! have the manual!
! > TQK70 - tape controller - (M7559-00)
! > * DRIVE IS _BROKEN_
! > KDA50 - disk controller - (M7164-00 & M7165-00)
! > CMD 200 TM QBUS->SCSI Controller
! > * Yes, I have the manual
! > RA90 Drive (1.2GB) - Big and slow, but after 3 1/2 years idle time,
! > still works
! > TK70 - tape drive - BROKEN
! >
! > NOTES:
! >
! > The CMD 200 TM recognized a newer SCSI CD-ROM and booted
! VMS 7.1 install
! > kit.
! >
! > Machine currently boots VMS 5.5-2.
! >
! > CXY08 and DESQA have NOT been tested, but were working.
! >
! >
! > --- David A Woyciesjes
! > --- C & IS Support Specialist
! > --- Yale University Press
! > --- mailto:david.woyciesjes@yale.edu
! > --- (203) 432-0953
! > --- ICQ # - 905818
! >
!
! --
! Dave McGuire
! St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
!
I do it all of the time, works fine. Stuff with onboard batteries it might hurt though if the battery is left in, so I put a sheet of thin cardboard across the bottom on the board (solder side)
---------- Original Message ----------------------------------
From: Doc Shipley <doc(a)mdrconsult.com>
Reply-To: classiccmp(a)classiccmp.org
Date: Wed, 26 Dec 2001 17:17:54 -0600 (CST)
>Hi.
> I think I've made a trade for a CPU, memory, and a graphics board for
>the ex-MVII in the garage. The guy daid that he doesn't have anti-static
>bags to ship the boards in, and asked if I thought wrapping them in
>aluminum foil would do.
> Any suggestions?
>
> Doc
>
>
Hi.
I think I've made a trade for a CPU, memory, and a graphics board for
the ex-MVII in the garage. The guy daid that he doesn't have anti-static
bags to ship the boards in, and asked if I thought wrapping them in
aluminum foil would do.
Any suggestions?
Doc