Another classic computer maker "bites" the dust.
See: http://www.news.com/News/Item/0,4,40250,00.html
Which is a news.com story about how EMC (makers of storage products mostly)
will buy Data General for 1.1 billion in stock. This was the last of the
great mini-computer companies that had been left standing after DEC was
bought by Compaq.
I'm looking for other examples, but I believe this leaves IBM (System 360)
and Sun (SPARC) as the last two companies who designed their own computer
architecture still standing under their own name. (I don't count Xerox
since they don't sell their D-series machines any more).
Companies known to have gone away:
DEC
Data General
Tandem
Prime
--Chuck
<alcohol. Now I'm just soaking the heads in a glass in the alcohol, and
<waiting overnight to see if they'll then come clean. If that fails, I was
<wondering about a toothbrush with just 91% alcohol.
NO! Try a Qtip with some acetone (nail polish remover) and then clean that
off with isopropanal.
There are plenty of more aggresive cleaners before resorting to abrasives.
When my RL02 crashed (bad pack) I had to use MEK on the heads to get them
clean. Isopropanal or ethanol are about the most mild solvents and someof
the media binders need some push.
Allison
In a message dated 8/10/99 3:30:46 PM EST, ard(a)p850ug1.demon.co.uk writes:
<< We've had many discussions here about whether it is better to restore a
machine (and thus instal unoriginal parts) or whether it is better to
keep everything original and live with it not working. For me, there is
no contest here - I like to use my old machines, and thus I try to get
them working. Fixing them is half the fun anyway :-). >>
I agree! I like stuff I can use. The only non-working stuff I keep (besides
packaging material ;>) is that which has spare parts for my working machines,
or machines I hope to acquire in the future.
<< Ooops... I thought almost everyone here was short of space... >>
Well, some of us collect the "small" stuff & we can get a lot of it on a five
foot shelf ;>) I'm also blessed with a wife who understands my hobby (if I'm
tinkering with this crap she knows where I am . . .)
<< People here have made some good points as to why I should keep the
original box, so for the moment at least, it stays. >>
Right on! The dumpster loses again!
Regards,
Glen Goodwin
0/0
Ok, I know this sounds crazy....
One person told me that if the heads were heavily oxidized, that they could
be cleaned with a soft toothbrush and TOOTHPASTE (followed by a rinsing in
91% alcohol)???????
Anyone know if this is crazy or advisable?
TIA
Jay West
A company in Richardson, Texas wants to get rid of some fairly classic
stuff.
I've personally seen all this stuff, but it was almost two months ago and
I've forgotten what a lot of it is. However, if you have a question about
anything, please e-mail me and I'll try to get it answered for you.
The price for this stuff is open ended. My guess is that in most cases
they will want some token amount, or may even be happy for you to come and
take it away. I'll act as the go-between so any offers you want to make
should be mailed to me and I'll forward them on for you. Please include
an e-mail address and a telephone number.
Here is the list:
Texas Instruments 1500 (1 bay)
Archive tape drive
8-port TI hub
Texas Instruments 1500 (8 bay)
Archive tape drive
8-port TI hub
Texas Instruments 300 Business System Terminal
Texas Instruments Business System 300 (blows fuse after a minute)
IBM PC/XT w/System/36 interface board
IBM PC monochrome display
IBM System/36 Desktop (Type 5364)
ADP PC/AT (no P/S)
ADP MAX 8500 (dead)
Archive tape drive
(2) 4-port networking hubs
Motorola SYS3304NY151
Archive tape drive
Texas Instruments System 1000
Archive 150MB tape drive
TI System V Xemix 386 by SCO
Manuals
Texas Instruments System 1000
(3) NEC N4810II modem
(2) Racal-Vadic VA212 audto-dial modem, AC adapter, cables, manuals
DIS System 36 (bad hard drive)
IBM monitor
CITOH 8510 printer
Texas Instruments Omni 800 printer
Sperry IT (PC/AT with SCO Xenix)
Unisys color monitor
Priority will go to those who can offer local pickup, since the company
doesn't want to have to deal with having to ship stuff if they can avoid
it (in fact, I don't know that they even want to ship anything, but I'll
find out).
The company wants to ditch this stuff soon so act fast or else it might be
scrapped.
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
My 1984 catalog indicates that it processes video signals, both analogue and
digital. It appears, from the cables offered that the analog is a 75 ohm BNC
and the digital is a 15 pin, prob. D sub Centronics type. Nothing indicates
that it could be used with the 4051, also in this catalog.
It's recording technique processes raster scan video with a fiber optic CRT.
It does use both kinds of Tek dry silver paper, switch selectable. The High
performance paper 7772 is capable of 125 lines per inch(LPI). The regular
7770 paper does 100 LPI.
There is a RGB Mixer available for color to mono conversion. I may have a new
one in a box if you get the 4634. The printer, new, comes with a roll of
paper, 75 ohm terminator and manual. If it is new in the box I sure would
recommend getting it. Few of these exist because they are valuable as scrap
metal.
In 1984 Tek wanted $7900 for this printer. A roll of paper cost $215, a case
$750.
If your Tek 4051 has a 15 pin video out in the back it might hook up to this
printer. The connector on the printer is not a Tek GPIB port.
Paxton
I just secured a block of 20 rooms at the Biltmore Hotel and Suites in
Santa Clara for VCF 3.0. This is the same hotel we used last year, and
they were very good to us.
The room rate is $69 or $89 a night depending on how much you want to
spend. I stayed a night in each room (the regular rooms and the tower
suites) last year and both were comfortable and clean (of course the tower
suites were much nicer :) $69 a night for a room in Santa Clara is a
prtty damn good deal actually.
All the information you would need to reserve a room can be found at:
http://www.vintage.org/vcf/hotel.htm
Act soon. The deadline to register at the VCF rate is September 3. Be
sure to ask for the Vintage Computer Festival room rate. If you have
trouble you can probably ask for Sabina, whom I negotiated with. Please
e-mail me as well if you do.
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
<> One person told me that if the heads were heavily oxidized, that they cou
<> be cleaned with a soft toothbrush and TOOTHPASTE (followed by a rinsing i
<> 91% alcohol)???????
Don't. has that person ever dealt with ceramic heads?
Clean it with 91% ISOPROPANAL (alcohol). inspect first during and after.
Most heads are ceramic and oxidized is not likely.
Allison
Various people said:
>> > The Commodore 64 _could_ run CP/M programs...provided one had the
>> > optional Z80 cartridge...though I never tried myself. :-) The 128 was the
>> > first Commodore machine to actually boot CP/M disks with a 1571 drive,
if I
>> > remember correctly.
>>
>> Well so _could_ the PDP-8 if someone built the necessary hardware or wrote
>> a simulator for it :)
>
>And so can a Macintosh if you run a terminal emulator and connect the
>serial port to a Northstar Horizon. :-)
I point is that Commodore had the foresight to put a "DMA" line
on the Expansion Port so that an external device could tri-state
the address lines on the 6510, effectively removing the 6510 from
the memory map. Which makes it very easy to run the C64 with multiple
processors or just a different processor.
The C64 CP/M cartridge was set-up so that you could have 6502 code
embedded in your Z80 code. You just need to set a certain register
every time you wanted to switch processors.
That coupled with the fact that you could swap out all the ROM and
all of the I/O leaving a continue 64K ram space, makes the C64 a
hardware hacker's dream.
Just my two cents.
--Doug
===================================================
Doug Coward dcoward(a)pressstart.com (work)
Sr Software Engineer mranalog(a)home.com (home)
Press Start Inc. http://www.pressstart.com
Sunnyvale,CA
Visit the new Analog Computer Museum and History Center
at http://www.best.com/~dcoward/analog
===================================================
I finally got around to putting a new lower platter into my 7900A. Kinda
hard to do from underneath, but it's done.
Now I'm getting ready to take the lower heads out for thorough cleaning.
Before I do, I wanted to ask some advice... When I powered the drive up
before, I could hear minor HDI (very slight scraping). Upon inspection it
was obviously the lower platter that was missing a track of oxide. The heads
had oxide on them but they didn't look all that bad to me. Most of the folks
on the list (and a few people I talked to voice) said just replace the lower
platter and clean the bottom heads and all would probably be well. Two
questions:
1) Everyone said because the lower platter is fixed, there's no concern for
alignment, precision, feeler guages, etc. Just unbolt the heads, clean 'em,
and bolt 'em back on. No special checks and so forth. Before I unbolt them I
wanted to double check and make sure I wasn't about to do anything silly.
So - just unbolt, remove, clean, rebolt, and power up?
2) I was thinking (bad sign <grin>)...if the heads contacted the platter
enough to scrape off a nice circle of oxide, won't cleaning the heads and
replacing the platter accomplish nothing? What I mean is - isn't it very
likely that whatever caused them to scrape in the first place won't be fixed
by a new lower platter and cleaned heads? What am I missing here?
Thanks in advance for the education on 14" hard discs!
Jay West
Here's an interesting company that purports to be in the business of:
"Supporting clients with older, "obsolete" computer
equipment, including, but not limited to, DEC PDP-11's,
PERQ graphic workstations, various workstations and
other machines running UNIX, DEC VAXen, and various
personal computers running CP/M, MP/M and MS-DOS."
http://www.perqlogic.com
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
I would be MOST interested in the HP1000 (*VERY* much so if it includes a
7900A or 7905), but would need to know what peripherals are in it. Please
let me know as soon as you can find out - shipping from CA to me isn't a
problem....
Jay West
-----Original Message-----
From: Mike Ford <mikeford(a)netwiz.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Tuesday, August 10, 1999 2:38 PM
Subject: SoCal Salvage, ALR, HP 1000
>One salvage place has a load of ALR (Advanced Logic Research) stuff going
>through it. Mostly all the old "stuff" that tends to accumulate in a firm,
>and then goes when it gets bought. Lots of ALR bits like big chassis, some
>triple pentium pro boards, boxes of power supplies.
>
>Later this week they tell me a complete HP 1000 is coming in, but no
>details yet.
>
>All above located in SoCal.
>
>
>
>Basically what I meant is banks of two. There's two SIMMS in a bank, with
2
>banks, totaling 4 SIMMS.
>
>If you install three 2 MB SIMMS, instead of getting a 6 MB memory reading,
>you'll get a 4 MB reading and a memory error.
>
Nope.
You'll get a memory error until you run the reference disk. If you have an
error while running the reference disk then you have the wrong type of
simms.
It's not until you get to Pentiums that you need 72pin simms in pairs.
>///--->>>
> -Jason Willgruber
> (roblwill(a)usaor.net)
> ICQ#: 1730318
><http://members.tripod.com/general_1>
>
>-----Original Message-----
>From: Olminkhof <jolminkh(a)nsw.bigpond.net.au>
>To: Discussion re-collecting of classic computers
><classiccmp(a)u.washington.edu>
>Date: Friday, August 06, 1999 2:11 AM
>Subject: Re: IBM PS/2 P70-386 SIMM needed...+ a couple other things...
>
>
>>
>>
>>Jason Wrote:
>>>I need a 2MB SIMM for an IBM PS/2 P70-386. I know they go in in sets of
>>>two's, but for some reason, I have a spare SIMM that I found. Does
anyone
>>
>>
>>I've never heard of this "sets of 2" stuff on these.
>>They use the same simms as the desktop model 70 . . ie with presence
>>detect circuitry.
>>
>>Hans
>>
>>
>
In a message dated 08/09/1999 5:07:15 PM Eastern Daylight Time,
ard(a)p850ug1.demon.co.uk writes:
> Hmmm... I didn't realise there was a lack of info on 1980's packaging
> (most manufacturers did much the same thing).
Perhaps they did. Perhaps not. Nonetheless this is a poor excuse for
trashing original packaging, unless you are forced to because of lack of
space. A piece of history is in your hands, to do with as you choose.
> > interesting, too!). Additionally, collectors will certainly pay a
premium
> > for an item which includes some or all of the original peripheral
"trash."
> That implies I collect as an investment, which I don't. I collect because
> I love old computers. I have no intention of _ever_ selling anything on.
I'm not an investment collector, and I certainly didn't mean to imply that
you are. However, when I finally croak, I hope that someone finds as much
useful enjoyment in these machines as I do. If not, I hope my survivors sell
them for top dollar, styrofoam and all. On the other hand, my wife might
just sweep them all into the bin ;>)
> You obviously don't know how little space I have here.
Of course I don't, having never seen your storage area! Which is why I
suggested that an abundance of space was required in order to keep all of the
associated "trash."
For crying out loud, Tony, lighten up! You ask for suggestions and then
ridicule the replies! Sheesh!
Glen Goodwin
0/0
Hi Hans,
>>PC/XT class machines generally have no clock hardware
>>in them as standard....
>
>This is only true if you look at the very basic unit....
But that's exactly what I was talking about, STANDARD PC/XT machines. IBM, to
the best of my knowledge, never released any form of clock card for the PC or
XT.
>....but clock-cards have been popular back than. Either as single
>function card (rather rar) or within a multi function card.
I used to have at least one clock card and several multi-function cards with
built in clocks for use in such machines.
The point is though that even though they were popular, they were generally the
exception rather than the rule....
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Hi!
I was wondering if anyone had an old copy of MS-Works (3.0?) for DOS that
they'd be willing to email to me trade something for (I have some old Mac
and IBM programs).
I'm looking for a copy of the install disks to install in an old ZDS
SuperSport. The JVC HD recently seized in it, and I bought a new one (Alps)
through www.zdsparts.com . Luckily, I had all of my documents backed up on
disk, but unfortunately, the MS-Works that was on the Zenith was the only
copy of MS-Works I have, and it was on there when I bought the computer.
I'm currently using WordPerfect 5.0, which doesn't recognize Works format,
or have spreadsheet / database. I also really don't feel like spending the
money to buy a new version of Works to just convert the files to
WordPerfect. (Word '97 doesn't read Works 3.0 for DOS format files,
either.)
ThAnX,
///--->>>
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
I bought a Tek4051 while in the USAF in 1978. I developed several programs
using the 4051 for data collection and reduction.
I would like to find one, probably for the nostalgia, I still have the my
old program listings.
I saw the recent thread on the EXEC command, I figured out the EXEC command
and wrote a couple of 6800 assembly language programs (play music, dump the
ROMs to the printer, etc). As I recall the format of the command was EXEC
A$, where the string was typically read from the tape as a single file.
Monty McGraw
>From: Joe <rigdonj(a)intellistar.net>
>Reply-To: classiccmp(a)u.washington.edu
>To: "Discussion re-collecting of classic computers"
><classiccmp(a)u.washington.edu>
>Subject: Re: Tektronix 4051 or 4052
>Date: Tue, 10 Aug 1999 13:09:27
>
>Monty,
>
> Good Luck! I only know of two 4051s and only one 4052. I have one of
>the
>4051s. None of them are for sale. Are you looking for one to collect or
>what?
>
> Joe
>
>At 11:05 PM 8/9/99 -0500, you wrote:
> >I'm looking for an old Tektronix 4051 or 4052 graphics computer.
> >
> >Thanks in advance,
> >
> >Monty McGraw
> >Spring, TX
> >
> >Attachment Converted: "C:\ATTACH\Tektroni.htm"
> >
>
_______________________________________________________________
Get Free Email and Do More On The Web. Visit http://www.msn.com
The WD2797 has little in common with the i8272. It is essentially a WD1793
with a built-in PLL for clock recovery. The instructions are, I think, the
same as those for the WD1793.
The clock recovery circuit works adequately for data rates suitable for
5.25" drives, but is less than wonderful for the 8" drives. It was used
with great success on the 5.25" drive interfaces on Western Digital's line
of bridge controllers. AFAIK, it was not as well received as the 9229 and
9216, both of which were digital clock recovery circuits suitable for use
with 8" drives. These were popular enough, however, that someone on the
list probably has already scanned the data sheet.
Dick
-----Original Message-----
From: Dwight Elvey <elvey(a)hal.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, August 09, 1999 6:59 PM
Subject: Information on part
>Hi
> I need information on a 2793. I know what it is, 'just need
>to know how it is the same and how it differs from some
>controller like a 8272.
> I looked at the obvious places on the net without results.
>Dwight
>
Fellow here has some good VAXen stuff pretty cheap. Contact directly
if you're interested.
-=-=- <snip> -=-=-
On Tue, 10 Aug 1999 11:02:10 GMT, in comp.os.vms you wrote:
>>From: wetboy <wetboy(a)shore.net>
>>Subject: FS: mVaxII, mVax2000, grey wall - $50.00
>>Newsgroups: comp.os.vms
>>User-Agent: tin/pre-1.4-980618 (UNIX) (SunOS/4.1.4 (sun4m))
>>Lines: 29
>>Message-ID: <SETr3.1282$EG4.221700(a)news.shore.net>
>>Date: Tue, 10 Aug 1999 11:02:10 GMT
>>NNTP-Posting-Host: 192.233.85.1
>>X-Complaints-To: abuse(a)shore.net
>>X-Trace: news.shore.net 934282930 192.233.85.1 (Tue, 10 Aug 1999 07:02:10 EDT)
>>NNTP-Posting-Date: Tue, 10 Aug 1999 07:02:10 EDT
>>Organization: Shore.Net/Eco Software, Inc; (info(a)shore.net)
>>Path: news1.jps.net!news.pbi.net!165.87.194.248!newsfeed.us.ibm.net!ibm.net!news.maxwell.syr.edu!news.shore.net!not-for-mail
>>Xref: news1.jps.net comp.os.vms:785
>>
>>MicroVax II:
>>
>> BA123 case
>> RD53
>> 9 MB ram
>> TK50
>> VMS 5.3
>>
>>MicroVax 2000:
>>
>> RD32
>> 6 MB ram (IIRC)
>> VMS 4.5B
>>
>>
>>VT320, LA75
>>
>>Most of VMS 5.0 "grey wall" (some
>>notebooks later than 5.0).
>>
>>
>>All for $50.00
>>
>>Pick up near Portsmouth, New Hampshire.
>>
>>E-mail me if you are interested.
>>
>>
>>-- Wetboy
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
>Using RT-11 V5.01, on an 11/03 with a Dual RX02 drive,
>I would like to compare the files on two disks. Since it appears that
>the disk I booted from must remain in the drive, how do I compare two
>other disks?
You can't... the device/file comparison programs don't have the
code which allows them to mount another volume for the operation
and then mount the system volume (the /wait option in other
utilities).
Best you can do is copy the files to a common volume and compare
them there...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Using RT-11 V5.01, on an 11/03 with a Dual RX02 drive,
I would like to compare the files on two disks. Since it appears that the
disk I booted from must remain in the drive, how do I compare two other
disks?
Steve
Ok, I spoke to the employee handling the purge of obsolete equipment at
the company in Richardson, Texas. Here's the deal: they would prefer if
someone could just come and haul all the crap away and be done with it.
They don't want anything for it, just for it to be hauled away.
More has been added to the pile since the list I posted, but I don't know
what.
I'm going to probably be in the Dallas area at the end of this month or
beginning of September for probably the last time in the forseeable
future. I may make one visit or two or maybe even several, I don't know.
But, the point is that I can make arrangements with anyone in that area
who wants to meet me at the company and haul the crap away. Then you can
do what you please with the stuff. Sell it at a profit to others, be nice
and give it away for 1.2*shipping, etc.
So I put out the call to anyone in the Dallas region who is interested in
taking this on to e-mail me and figure out what to do with this stuff.
To those who have expressed an interest so far in some of the stuff, I'll
e-mail you separately about what happens next.
Sellam Alternate e-mail: dastar(a)siconic.com
------------------------------------------------------------------------------
Don't rub the lamp if you don't want the genie to come out.
Coming this October 2-3: Vintage Computer Festival 3.0!
See http://www.vintage.org/vcf for details!
[Last web site update: 05/25/99]
>1) Everyone said because the lower platter is fixed, there's no concern for
>alignment, precision, feeler guages, etc. Just unbolt the heads, clean 'em,
>and bolt 'em back on. No special checks and so forth. Before I unbolt them
I
>wanted to double check and make sure I wasn't about to do anything silly.
>So - just unbolt, remove, clean, rebolt, and power up?
Don't forget to vacumn the dust!!! And change the air filter.
>
>2) I was thinking (bad sign <grin>)...if the heads contacted the platter
>enough to scrape off a nice circle of oxide, won't cleaning the heads and
>replacing the platter accomplish nothing? What I mean is - isn't it very
>likely that whatever caused them to scrape in the first place won't be
fixed
>by a new lower platter and cleaned heads? What am I missing here?
The first time you spin it up I would unplug the head positioner and let it
spin for 10 minutes without the heads loading to be sure to get the last of
the dust out. I don't know if the HP will stay spinning if it does not find
a servo track however. If it doesn't then spin it up and down several times
before allowing the heads to load.
What you have done along with above comments are all I ever used to do.
Dan
--- allisonp(a)world.std.com wrote:
> > >Dhrystone clocks it at 1974 MIPS (aka 1.974 GIPS!) Truely it boggles the
> > >mind. I had to explain to our sysadmin how the uVAX 3900 sitting in my
> > >office was about the speed of a 386/25 and he nearly choked.
>
> > "There's more to computer performance than clock speed, folks."
>
> Bigtime!
>
> back when pc and Vaxen were being pitted, the 386/16 was on par with
> a Vax750 if it had the FPU chip. Otherwise the vax could out math it.
I always liked to see the looks on people's faces when I compared our
VAX-11/750 (0.6 VUPS) with the *integer* performance of a Sega Genesis
(8Mhz 68000). The reason we could support 20+ users on the VAX with 8Mb
of memory was a) the 32-bit channel to disk and b) DMA outbound serial I/O
(a wad of Emulex 16-port muxes). Of course, it was more fun to be the
only user, especially when playing "Empire".
-ethan
===
Infinet has been sold. The domain is going away. Please
send all replies to
erd(a)iname.com
_____________________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com
On Mon, 09 Aug 1999 17:10:35 Joe <rigdonj(a)intellistar.net> writes:
> At 11:26 AM 8/9/99 -0700, you wrote:
> >Another classic computer maker "bites" the dust.
> >
> >See: http://www.news.com/News/Item/0,4,40250,00.html
> >
> >Which is a news.com story about how EMC (makers of storage products
> mostly)
> >will buy Data General for 1.1 billion in stock. This was the last
> of the
> >great mini-computer companies that had been left standing after DEC
> was
> >bought by Compaq.
>
> I guess that makes the DG Nova down here that needs rescuing an
> instant
> classic. Someone should grab it and put in on E-OverPay with a big
> pitch
> about how rare it is!
>
> Joe
This would be one of those rare instances where hype would be
mostly true . . .
___________________________________________________________________
Get the Internet just the way you want it.
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In a message dated 8/9/99 8:00:47 AM Eastern Daylight Time, gene(a)ehrich.com
writes:
> I need a battery for my IBM Thinkpad 500.
>
> Does anybody have one available or know where one can be obtained?
>
www.direct.ibm.com
choose parts and perhiphs link. you can locate the fru and price for the
battery. i've heard of a store called batteries plus that supposedly has lots
of laptop batteries that might have it. worth checking out.
--
d.b. young team os/2
--> this message printed on recycled disk space
visit the computers of yesteryear at-
http://members.aol.com/suprdave/classiccmp/museum.htm
Hum.... well... knowing what I know about HP corporate (their recent breakup
of the business partnership between them and EMC was *VERY* confrontational)
it makes me wonder if EMC purchasing data general isn't a "spite" move. When
HP killed the HP/EMC partnership EMC lost 20% of their revenues...
Jay West
-----Original Message-----
From: allisonp(a)world.std.com <allisonp(a)world.std.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, August 09, 1999 3:21 PM
Subject: Re: EMC buys Data General
>> >Dhrystone clocks it at 1974 MIPS (aka 1.974 GIPS!) Truely it boggles the
>> >mind. I had to explain to our sysadmin how the uVAX 3900 sitting in my
>> >office was about the speed of a 386/25 and he nearly choked.
>
>First I think that is quite in error. First the clock on the 3900 is well
>above 25mhz and the CISC impmentation of the VAX used there is easily
>more of the 486dx/early Pentium class.
>
>> Yeah but did you explain that you can pile 30 users on that 3900 and
it'll
>> still perform about the same? That's not even possible with current
Wintel
>> hardware.
>>
>> "There's more to computer performance than clock speed, folks."
>
>Bigtime!
>
>back when pc and Vaxen were being pitted, the 386/16 was on par with
>a Vax750 if it had the FPU chip. Otherwise the vax could out math it.
>
>A real compare would be a NT box running many xterms and thin clients
>against a VAX... it would show how weak the PCs are. Vaxen with the high
>throughput IO for storage and all has all the advantages.
>
>Allison
>
>
>
>
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Tony Duell inquired:
> > A couple of months back I bought a second-hand Commodore 1570 disk
drive.
> > It came in the original box, which is, alas, in very poor condition. The
> > polystyrene is cracked and has chunks missing. The cardboard sleeve is
> > torn/ragged.
> >
> > Is there any point in keeping it? I don't normally care about the
packing
> > boxes for computers, but I know some people do. Also, I believe the 1570
> > is not the most common CBM drive, so presumably the boxes for them
aren't
> > that common either.
Sellam Ismail replied:
> I think its worth holding onto because its a part of the history of the
> product. It tells a bit about the company at that point in its life in
> terms of the packaging design and such. If the styrofoam is making a mess
> then perhaps it'd be best to throw that out, and then maybe fold the box
> up and stick it away somewhere to preserve it for posterity.
In general, Tony, I agree with Sam. The packaging can provide insight into
both the packaging technology of the times and the marketing strategy (some
of the claims on those old boxes are outrageous, and the graphics can be
interesting, too!). Additionally, collectors will certainly pay a premium
for an item which includes some or all of the original peripheral "trash."
The foam does tend to break down, especially if it is in contact with other
plastic items such as cables, etc, but it is still worth keeping. My
solution is to wrap the foam -- and each item it contains -- in _stable_
plastic bags, and then stash the whole mess in a larger cardboard box. This
of course requires a certain abundancy of storage space . . .
Glen Goodwin
0/0
Hi Tony,
>No, the 286 has 24 address lines....
Thanks for clearing that up - I'd mistakenly thought it had 22.
>....This machine (p850ug1) started life as a PC/AT. Although it now
>has a 486 processor....
How'd you do that? Sounds like one heck of a hack....
TTFN - Pete.
--
Hardware & Software Engineer. Sound Engineer.
Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC)
peter.pachla(a)virgin.net |
peter.pachla(a)vectrex.freeserve.co.uk |
peter.pachla(a)wintermute.free-online.co.uk | www.wintermute.free-online.co.uk
--
Seen on Usenet. Anyone want this stuff, get in contact with the seller
directly.
Thanks.
-=-=- <snip> -=-=-
On Sun, 08 Aug 1999 17:58:09 GMT, in comp.os.vms you wrote:
>>From: midigear(a)gis.net (midigear)
>>Newsgroups: ne.forsale,comp.os.vms,comp.sys.vax
>>Subject: FS: rx-50 drive, digital mouse / delni
>>Date: Sun, 08 Aug 1999 17:58:09 GMT
>>Organization: Posted via Supernews, http://www.supernews.com
>>Lines: 17
>>Message-ID: <37adc523.20592952(a)news.gis.net>
>>Reply-To: midigear(a)gis.net
>>X-Complaints-To: newsabuse(a)supernews.com
>>X-Newsreader: Forte Free Agent 1.11/32.235
>>Path: news1.jps.net!news.pbi.net!206.170.175.2!ns2.foothill.net!oronet!news.gv.tsc.tdk.com!newsout.pdxfiber.net!cyclone.bc.net!feed.newsfeeds.com!newsfeeds.com!nntp-relay.ihug.net!ihug.co.nz!remarQ60!rQdQ!supernews.com!remarQ.com!corp.supernews.com!not-for-mail
>>Xref: news1.jps.net ne.forsale:276 comp.os.vms:738
>>
>>LAST CALL
>>
>>- digital delni hub (with a dozen connectors)
>>- digital mouse model VS10X-EA Rev 3a
>>- miscellaneous related items
>> (VMS, a couple dozens floppies)...
>>- RX-50 disk drives (2 drives in one assembly)
>>- long keyboard/monitor cable (3 BNC cables (RGB) and 1 keyboard on
>>one end, multipin on ther other)
>>
>>for pickup in somerville (boston) / davis square
>>
>>please make an offer, I'll probably take it!
>>
>>I CANNOT ANSWER ANY TECHNICAL QUESTIONS ON THIS
>>- ALL ITEMS AS IS
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
On Sun, 08 Aug 1999 22:22:45 -0500 Chris Cureau <cureau(a)centuryinter.net>
writes:
>> Oh yeah, like the time Commodore shot itself in the foot claiming on
>>the outside of the box that the C64 could run CPM programs! Of course
>>then the FTC stepped in. . . .
>
> The Commodore 64 _could_ run CP/M programs...provided one had the
>optional Z80 cartridge...though I never tried myself. :-) The 128 was
>the first Commodore machine to actually boot CP/M disks with a 1571
drive,
>if I remember correctly.
>
>Just my two cents,
>Chris
>
You are absolutely correct! The Z-80 cart was originally shelved when
Commodore decided it was taking too much time and engineering effort to
develop. The FTC forced Commodore to produce the carts or be sued
big time. They produced enough to satisfy the FTC requirements, and
that was the end of that. CPM carts are quite scarce as a result.
(And a bit buggy).
Jeff
>
___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
The supply connections on the schematic are +24, +12 , +5, Gnd, and -12.
The +24 is shown with a separate return from that of the other supplies. It
seems to me that there is a considerable tolerance on the +24, but that's a
common supply voltage. The thermal printer appears to be a TI EPN-9120,
which might be just as happy with 18 volts, but might require a different
set of passives at that voltage. I doubt you'll hurt anything with a
voltage as low as 18Vdc, though the stepper may want more. When I used this
mechanism, I usually AC-coupled the stepper so the circuitry didn't heat
when the printer was idle.
All indications are that the AIM uses a couple of parallel port bits to
provide the ultra-slow (110 bps) interface to the TTY via some transistors
and TTL gates. It's not the usual isolated 20mA interface. However, TXD is
on J1/pin U and its return is on S, while the RXD from the TTY KEYBOARD and
its return are on J1, pins T and R, respectively.
If you want to improve anything at all, I'd start by combining the input
clock with the R/nW signal to create the write strobe to the RAM memories.
That will provide considerably better hold time, which 2114's definitely
require. I normally 'NAND' the Phase-0 and Phase-2 clocks with inverted
R/nW to accomplish this.
There's a single-step switch and a reset switch, as well as the one that
selects the TTY keyboard.
I wouldn't be afraid to "play" with this one. It looks like it can handle
reasonable abuse.
Dick
-----Original Message-----
From: Hans Franke <Hans.Franke(a)mch20.sbs.de>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, August 09, 1999 7:24 AM
Subject: Re: Spiffy Little Hamfest Find
>
>>>Geee, what a neat beast - I'm searching a cased AIm (or an AIM
>>>case) for years.
>>>> I haven't powered it up yet since it seems to want 12 and 24
>>>> volts and I don't have a 24 volt supply handy.
>>>Wasn't it +5 and +/-12 ? It's a long time ago.
>
>> Yes, 5 VDC and plus and minus 12 VDC. The -12 is only used for a comm
>> port I think. The + 12 is used for the comm port and the printer. You CAN
>> run it without the plus and minus 12 VDC but you'll lose the comm port
and
>> printer. You MUST have the 5 VDC.
>
>Exact, the 12V are also needed for the TTY.
>
>>>> Does anyone have the pinouts for the expansion and application
>>>> connectors on this little guy?
>>>Try Richards page - he did a good job and scanned a lot of the Manuals.
>>>http://highgate.comm.sfu.ca/~rcini/classiccmp/my_docs.htm
>
>>>> Also, there's a switch that lets you switch between keyboard and
>>>> tty but I see no place to connect a tty, not even a little dual
>>>> inline connector or anything appropriate. Clues?
>>
>> I don't know. Maybe it uses the keyboard connector or the expansion
>> connector. You should be able to trace the KB-TTY switch out if nothing
>> else. BTW some of my boards don't have the switch. The traces are there
and
>> there's a jumper soldered between two of them.
>
>> >There are two edge connectors - one supplys the system (extension)
>> >Bus, the other offers the 'user' port, including a 20mA TTY (like
>> >the KIM)
>
>> Mine say "J1 Application" and "J3 Expansion". The keybaord connects
to
>> "J4". "J2" connects to the printer. I don't know where the comm port is.
>> Have you looked at the stuff on Rich's web site yet. The manuals there
>> should tell where it is and how to use it.
>
>J1 Application == 'user' port, including the com line and the TTY line
>J3 Expansion == system bus
>
>Gruss
>H.
>
>--
>Stimm gegen SPAM: http://www.politik-digital.de/spam/de/
>Vote against SPAM: http://www.politik-digital.de/spam/en/
>Votez contre le SPAM: http://www.politik-digital.de/spam/fr/
>Ich denke, also bin ich, also gut
>HRK
The local Hospice organization is having their annual flea market. One of the
workers pulled me aside and asked if I knew anyone that could use a box of 16
brand new replacement keyboards for IBM laptops. Neither of us know what model
they are for. He gave them to me to sell as they would have been dumpstered.
If anyone is interested please contact me off list for shipping etc info. I
will be asking for 2 checks. One to Hospice and one to me for actual shipping
costs. The one to Hospice is for what you feel they are worth. Keep in mind
they are a non profit organization and the flea market is how they raise funds
for the local home.
The IBM P/N 07G1103
FRO P/N 07G1735
EC No. C81240
Then under the bar code is *1M630037331
They do not have the pointer nub in the middle of the keyboard so I know they
are for an older model. Might even meet the 10 year rule.:)
FWIW almost all of the PC related stuff that I get in the course of my business
gets donated to Hospice for this annual flea market.
Dan
Hi,
Is anyone familar with this unit? I know what it is, it's a screen
printer. I have a catalog that describes an earlier model but not the 4634.
Does anyone know if this one also requires the dry silver paper? Will it
work with the Tektronix 4051 computer? Exactly how are these connected to
the system? I found one of these in a junk yard. It's still new in box. I'm
wondering if I should grab it to add to my Tek 4051.
Joe
Anybody who started with this thread (and many thanks to Mike Ford),
I got a second hand wall-wart power supply which puts out 9v dc 500
mA. The connector on the wall-wart cable has a socket for a central pin and
an outer conductive barrel. The socket is +, the outer barrel is -
according to the power supply label.
I plugged it into the Etherprint-T Plus and it ran fine for at
least 5 minutes (after which I unplugged it and went to bed). I'll let you
know if it causes trouble later. YMMV, of course, but as far as I can tell
Mike's forwarded post took care of me perfectly. Thanks, Mike!
- Mark
Cleanup efforts have unearthed a Unibus board: Specifically, M8200-YB.
If no one speaks up for it, I'll just put it out at my garage sale on the
28th/29th. Otherwise, first person to offer $5.00 (covers packing and
shipping) gets it.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
<>It's a TK50 in an external case with a single 50 pin D-sub connector and
<>no ID switch.
<
< A single connector? A D-sub 50 no less?
<
< Geez... that's downright psychotic. Ok, I'm baffled. Anyone else?
Sounds like a externally mounted TK50 for use with the usual Qbus M7546.
The companion was the externally mounted RD5x for use with the RQDXn and
the matching distribution card. Both are for those that had BA23s and
no place left for a disk or tape.
Allison
At 15:55 08-08-1999 -0400, you wrote:
>Is a TK50-D not a SCSI device? It sure bears only about a fifth of a
>superficial resemblance to one.
Never ran into the 'D' version. The two I've seen that are SCSI are the
TK50Z-FA (for use with VAXStation 2000) and the more generic TK50Z-GA (less
proprietary on the SCSI side than the FA).
>If not what is it used with?
Depends. If you're talking the bare drive with the 26-pin Berg header on
the back, it's a proprietary serial interface which requires the M7546 (or
similar) tape controller. Such were often installed in MicroVAX II and III,
and could also be found on the MicroPDP-11 series.
If you're talking external case with a pair of 50-pinners on the backside,
that could be either an FA or a GA. Such were used with systems like the
VAXStation 3100 series, or anything else that needed a TK50 on SCSI.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
Hello List,
Would anyone like a Tektronics 4113 graphics terminal? It's in
perfect working order, but slightly scuffed here and there. One 8" floppy
drive that works, color monitor that works, and perhaps even the color
printer that goes with it, though I haven't seen that thing recently.
I'm looking for pdp11 stuff, a sun3 framebuffer, cash or a good sob story
in exchange.
It's near Pittsburgh, PA. and it's pretty big, so you'll probably
not want to mess with shipping..
Act fast before I shamelessly pimp it on Ebay...
jake
Forgot to mention, I have a bit of DOC, but haven't read it yet. Perhaps I
can find where the serial port connections are located. Since the thing
doesn't appear to have a UART, I'm curious what it uses. Perhaps it uses a
6522 serial I/O port. It could bit-bang, I guess.
After I've looked the docs/schematics over, I'll know more, which I'll
share, if needed.
Dick
-----Original Message-----
From: Anthony Clifton - Wirehead <wirehead(a)retrocomputing.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Sunday, August 08, 1999 4:09 PM
Subject: Spiffy Little Hamfest Find
>
>Found an AIM-65 at a hamfest today (at the Amana Colonies near
>Cedar Rapids, Iowa) for $1.00. It's got the cheesiest brown,
>plastic case I've ever seen, a cut little printer built in,
>an ascii keyboard, a funky led display and not much else.
>
>I haven't powered it up yet since it seems to want 12 and 24
>volts and I don't have a 24 volt supply handy.
>
>Does anyone have the pinouts for the expansion and application
>connectors on this little guy?
>
>Also, there's a switch that lets you switch between keyboard and
>tty but I see no place to connect a tty, not even a little dual
>inline connector or anything appropriate. Clues?
>
>Thanks...
>
>Anthony Clifton - Wirehead
>
>
The plastic cases were an add-on, but the printer and "funky" LED display
were standard. It's a standard sort of 6502 board, with a 1 MHz processor,
a bit of ram and a bit of ROM, depending on what you put in. I've got two
of them (borrowed) atthe moment, one with a video board and extra prom board
and a prom programmer, and the other without the case, etc, but with all
available ram and rom populated. I believe it's got the assembler and BASIC
in ROM along with a monitor. AFAIK, there's a FORTH available for it as
well, but I'm not a 4th sort of guy.
Joe Rigdon has a couple of these with the BASIC and Assembler ROMs on board.
Maybe you want to pull his chain and see what's really in those ROMs he's
got.
Dick
-----Original Message-----
From: Anthony Clifton - Wirehead <wirehead(a)retrocomputing.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Sunday, August 08, 1999 4:09 PM
Subject: Spiffy Little Hamfest Find
>
>Found an AIM-65 at a hamfest today (at the Amana Colonies near
>Cedar Rapids, Iowa) for $1.00. It's got the cheesiest brown,
>plastic case I've ever seen, a cut little printer built in,
>an ascii keyboard, a funky led display and not much else.
>
>I haven't powered it up yet since it seems to want 12 and 24
>volts and I don't have a 24 volt supply handy.
>
>Does anyone have the pinouts for the expansion and application
>connectors on this little guy?
>
>Also, there's a switch that lets you switch between keyboard and
>tty but I see no place to connect a tty, not even a little dual
>inline connector or anything appropriate. Clues?
>
>Thanks...
>
>Anthony Clifton - Wirehead
>
>
From: "r. 'bear' stricklin" <red(a)bears.org>
> Is a TK50-D not a SCSI device? It sure bears only about a fifth of a
> superficial resemblance to one.
> If not what is it used with?
The -FA and -GA models have a SCSI controller board (TZK50) with the
drive, in the box which is about 12.5 inch (32 cm) wide.
Assuming that the "-D" is the one which is about two-thirds as wide,
it is just the raw drive with its ribbon cable going to a (largely idle)
50-pin D connector (as I recall). It connects to a suitable controler,
such as the Q-bus TQK50 or the UNIBUS TUK50. I believe that it was most
commonly used with big-old UNIBUS machines like the VAX-11/7xx, which
had no convenient place for an internally mounted TK50 drive, whereas
most Q-bus systems did.
Nowadays, the most common use for one is probably as a safe place to
keep a spare drive, in case the drive in one's -FA or -GA fails.
------------------------------------------------------------------------
Steven M. Schweda (+1) 651-645-9249 (voice, home)
1630 Marshall Avenue #8 (+1) 612-754-2636 (voice, work)
Saint Paul MN 55104-6225 (+1) 612-754-6302 (facsimile, work)
sms(a)antinode.org sms(a)provis.com (work)
<> The one on my s100 board is definatly broke... I wrote the bios!
<
<Are you saying you have an RTC chip that changes the year from 1999 to
<something other than 1900 or 2000? If so, what on earth is the chip?
Very early msm5832 C1979.
What you've missed is many of the early parts and even the Dallas parts
were buggy. This is one of the very early and quite buggy ones!
Allison
In a message dated 8/8/99 2:47:49 PM Eastern Daylight Time,
ard(a)p850ug1.demon.co.uk writes:
> >
> > I keep all boxes that I get until a better one comes along. John
>
> One other thing to remember. I (like most people here I guess) are
> _terminally_ short of space.
>
> If I had infinite space, I'd keep all the boxes, etc, in case they were
> useful/historically important. As it is, I am not so sure....
>
well, if the boxes are in decent shape, they do stack better. One thing to be
careful of though, is to make sure that insect pests aren't hitching a ride
in an old box you decide to bring in your house.
--
d.b. young team os/2
--> this message printed on recycled disk space
visit the computers of yesteryear at-
http://members.aol.com/suprdave/classiccmp/museum.htm