Hello,
I hate to bother you but I have a old IBM 5362 computer and I came across
a add you had on the internet.I was wondering how I could attach my IBM 5362
to my IBM 3270 workstation,would I use the parallel port or do they make a
special cable that hooks to the round port below it.I have search the
internet high and low and can't find any information about it.If you can
help me or know where I can find some information about it please let me
know.I guess thats it for now.Thanks in advance-Robbie
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Hi,
I have several documents (whitepapers on various transputer products from
Paramax) that was apparently created using Pagemaker 3 for the MAC. I was
able to get a copy of Pagemaker for Windows (latest version), but
unfortunately documents are not cross-platform friendly on different
versions of Pagemaker. I also do not have a MAC and hence I am currently
using Basilisk for NT (which suits my current needs). Does anyone have a
copy of Pagemaker 3 for the MAC? Or better yet, help me convert these
documents into postscript/pdf so that I can post them on my website.
I also have several disk images of various transputer programs and
applications for the MAC. I am having problems reading these files (they
come up as corrupted). Dont know what I can do as I dont know if it is
Basilisk's fault or the files are really corrupt. Can someone with a MAC
expand out the files and possibly stuffit for me instead?
Any help is much appreciated,
Ram
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I was living in Tokyo from 1969 to 1985 as a Danish electronic
expatriate engineer, and my best past time hobby was to visit the
electronic marked "akkihabara"
I have a number of interesting magazines, one in particular, Kilobaud
issue # 1 in pristine condition.
Anybody have an idea of the value of this magazine
Do you still have the chip or chips below, if so
I'd be interested in buying them...
Eurtly Parker
Eurtly(a)Southslope.net
I have a SN94281 in a Radio Shack package.
[demime 1.01a removed an attachment of type image/jpeg which had a name of Notebook.jpg]
Hi,
A charity I do some work for has an IBM PS/1 they would wamt to sell.
80386/16. 40 Mb HD, color monitor, dutch handbook. Location Arnhem, The
Netherlands.
Wim
Er, in case it isn't obvious, reply to me at
xyakoxwenk(a)yahoox.com (after removing those x's)
about the Univac...
The New Yahoo! Search - Faster. Easier. Bingo.
http://search.yahoo.com
>From: ard(a)p850ug1.demon.co.uk
>
>> Hans' presentation on storing vintage computer data as XML made me
>> realise that the most important thing is to get everything preserved,
>> and then work out what to do with it. I could store everything I've
>> ever written on an 8-bit computer in a corner of my existing hard drive
>> and not even notice it was there. I've got to dig out all those KCS
>> cassettes, ASR33 printouts and even a few bits of paper tape and get
>> them transferred.
>
>I can assure you those paper tapes will still be readable long after your
>hard disk had headcrashed!. Why do people insist on transfering reliable
>storage media onto modern, unreliable stuff? It's the same with
>photographs and cine films -- people transfer them to CDs and DVDs. The
>originals have a much longer life...
>
>-tony
>
Hi Tony
I'm more interested in getting the information spread to multiple
locations, regardless of the media. Even paper tape burns up in
a fire. The only real hope is a lot of copies spread around the
world. This is why I've made my efforts for the Poly88 and I'm
doing similar for the H89.
Multiple media and multiple locations is the only hope.
Dwight
Hi Bob
My brother passed away recently and while going through his belongings, I
discovered a 2116b with 2160a power supply. There is a box with it containing
more cards and the manual. I couldn't say whether it is working or not, but
knowing my brother, it would still work. I'm not sure what to do with it yet,
but if you are interested, let me know.
Thanks.
Bernie Stock
DSV Microtech
560A 11t6h Ave.
Campbell River, BC
V9W 4G4
Tel: 250 286 3173
Fax: 250 286 3178
Hello Folks.
I'm seeking out the following manuals for a client:
- Apollo DN560 (any manuals, in particular hardware reference)
- SUN2 hardware reference manuals
- Synapse N+1 (database machine from the early 1980s) any manuals
- Motorola VERSAmodule 32-bit Monoboard Microcomputer User's Manual M68KVM04/D1
- Any supplemental information on the above regarding the 68010
- DEC MINC-11 or MINC-23 or MiniMinc hardware reference
- IBM System/360 Model 195 Field Engineering Manual: Theory of Operation
- IBM System/360 Model 195 Field Engineering Manual: Storage Control
- Unit and Buffer Storage IBM Form No. SY22-6850
- Field Engineering Maintenace Diagram Manual (FEMDM)
System/360 Model 195, Volume 3 Form No. SY22-6853-1
As always, there is a monetary reward for the capture of these manuals.
If you've got any of these and are willing to loan them for a period of
time, please contact me directly at <sellam(a)vintage.org>.
Thanks!
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 *
I have two sheet feed scanners here that anyone can have, just cover
shipping.
Spectra 1200 Color Scanner
SP Color 6000
Here's the catch (there's always a catch). I don't have the interface
cards for them. One of the two I have a manual and software, and the
software for both is available on the web (PlusTek's web site?).
They use, from what I can tell, a custom interface card. I tried to find
out if it was a generic SCSI card, but I wasn't able to turn up any info
that indicated that. They do pull their power from the interface card, so
I tend to think it is not SCSI.
I also don't have the cable that goes between the card and the scanner,
but both ends are DB 25 so it should be fairly easy to get a cable
(assuming there isn't some funky pinout for it).
I also don't know for sure that either scanner works. They were given to
me a few years ago, at the time the previous owner told me they were
parallel scanners, so I didn't think of checking for an interface card
until it was too late. As a result, I have no way of testing them, so I
can't say if they work or not.
If anyone wants either or both, just cover shipping or pick them up
(Ridgewood, NJ 07450). They are going in the dumpster no later than
Wednesday, so let me know by then.
-chris
<http://www.mythtech.net>
>From: "Marianne L. Faber" <mlfaber(a)earthlink.net>
>To: jfoust(a)threedee.com
>Subject: Lanier Word Processing System Needs New Home
>Date: Thu, 15 May 2003 22:10:54 -0500
>
>Hello John Foust--
>
>I was delighted to find your "Computer Rescue" site, and I hope you can help me find a home for a friend's Lanier Word Processing System. This is a complete system, including most manuals, that dates from the late 80's. The owner is fastidious about care. He retired the system up sometime around 1989, and it was in full working order at the time. Currently, it is resting safely in about 12 labeled boxes on storage shelves in southern Minnesota.
>
>Do you know of a collector who would be interested in it? The alternative is May 27th's annual "free computer recycling day" at our county recycling center. I would hate to see that happen, but the eternal quest for shelf space is pressing the issue.
>
>Thanks for your help.
>
>Marianne L. Faber
><mailto:mlfaber@earthlink.net>mlfaber(a)earthlink.net
> I've used alcohol on that stuff and it seems to remove some but not all
>of it. I've never found anything that would remove it completely.
I've used Simple Green. Put a good coating of it on (a small pool of it
to cover the marker), then let it sit... and sit... and sit some more...
then look at it, walk away and let it sit some more. Give it a good 30
minutes.
Then firmly start rubbing it off. I've found that takes off most all of
it. Repeat as needed (usually after the 2nd or 3rd application, the
marker is either gone completely, or faded to the point of not very
noticable... however, on some materials it has almost no effect other
than to waste your time and stink up your work bench)
Try on the case in a non noticable area first, as I've also found letting
Simple Green sit for that long can discolor some paint and plastics.
-chris
<http://www.mythtech.net>
> What is a BBS?
You're joking, right?
BBS = Bulleten Board System
Before the Internet was publically accessable, most people that were online
were either using a commercial service such as Compuserve, or BBS's. Some
BBS's were free, others charged for access. There were even "Networks" of
BBS's such as Fidonet that shared email and message boards. Everything was
done via dialup, often with very slow modems.
Zane
I've got things that still haven't been claimed from last time yet. I'm
asking $5 plus shipping costs each item.
First, the new:
- PowerMac 6100/66 with 250MB hard drive, cdrom, and DOS card (with dongle
for the DOS card). I think it has 16MB RAM.
- Compaq Luggable (original model). Has 2 FH 5.25" floppy drives.
- Zenith XT clone with 10MB hard drive, and 360KB floppy drive. Tested,
works.
- DEC LanBridge, not used, pair of AUI connectors on the back.
Now, what's left from last time, and probably going to get thrown out
soon:
- Macintosh Classic II. 80MB HDD, not sure on amount of ram.
- Macintosh Plus 1MB
- Macintosh Quadra 700, 16MB ram, 230MB HDD.
- Mac-plus style keyboards and mice (4pin RJ11 keyboard, DE9 mouse)
- PS/2 Model 70, with 6MB ram and an 80MB hard drive. I have at least two
to get rid of, but need to find where I stuffed the ram first...
- 2 Full-height 50pin centronics SCSI enclosures
- HP 9000 model 715/50, I think it has 32MB ram.
Pat
--
Purdue University ITAP/RCS
Information Technology at Purdue
Research Computing and Storage
http://www.itap.purdue.edu/rcs/
>theres no header on the data tapes (IIRC)
That's a simple fix.
Actually, if that is the only reason an audio tape isn't usable, then I
can custom order tapes from a supplier I use in the correct length (600
feet) and with no leader. I don't know the price for sure, but I would
venture to say no more than $2.00 per tape. (I get normal 120 minute
tapes from him for about 60 cents a tape).
Somehow I suspect there are other reasons beyond tape length and lack of
a leader that makes it different from an audio tape.
-chris
<http://www.mythtech.net>
>I have a number of data cassette tapes still in original packaging. A maxell
>CS-600XD says 600feet length, 16,000ftpi and D/CAS-86 compatible. Have no
>idea what that means.
Well, at least it gives me the specs to find a compatible tape. In doing
some more searching, I'm having a very hard time finding anyone that
actually still sells the tape. A few people still list them, but so far
no one seems to actually have them. Probably because from what I can
find, Maxell no longer makes the tape.
Any chance you might want to part with one tape on the cheap?
Although, honestly, if I can't find a supplier for tapes, it won't really
matter if the drive works or not. Maybe I'll just stick an audio tape in
it and see what happens (found a newsgroup posting that says not to even
think of doing that... but they don't say why... if the universe implodes
tomorrow, you can all blame me for using a cheap audio tape in the drive)
-chris
<http://www.mythtech.net>
I just aquired a ClubMac tape drive that I want to test. It is a rebadged
Teac MT-2ST/N50 cassette drive. I'm hunting around for info, and it looks
like that uses a 600XD cassette.
A regular audio tape cassette fits in it. Does anyone know if I can use
regular audio tapes? Maybe a particular style of audio tape?
I really just want to test the drive to see if it works, so if an audio
tape will work long enough to write some data and read it again to make
sure the drive functions, that should be enough. I don't really want to
plunk down $15 for a data cassette for it to find that the drive is dead.
-chris
<http://www.mythtech.net>
HI:
Does everyone have experience connect 3.5" PC floppy disk drive to HP 16XX
logic analyzer? I think the HP used 720K floppy disk. It is different from
standard PC floppy disk. He is pintout on HP main board.
1 ?
2 ?
3,5,6,7,9,11,12,14 5V
4, 16 ?
8 ?
13,15,17,19,21,23,25,27 GDN
18 ?
20 ?
22 ?
24 ?
26 ?
28 ?
30 ?
32 ?
34 ?
29, 31,33 12V
Would you tell me what "?" is?
Thanks
LI
I just finished putting more sutff on E-bay including some DEC VAX/VMS
manuals, AT&T 3B2 manuals, a VME chassis, a HP-85 and even a 1903 book on
steam engines. I also have DEC circuit cards that wil lbe closing SHORTLY.
see
<http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&userid=rigdonj>
if interested.
Joe
>I found a little information that may give a cluue. Go to
>
> http://www.cybergenetic.ca/ebook/wrh13.htm
>
>and scroll down to the section headed "D/CAS". My tapes have the big
>notch described. I think the coercivity of these tapes is about 600
>oersteds (which makes them Class II); normal audio tape is about
>280-320 (Class I).
Interesting about that notch. I tried fitting an audio cassette tape in
mine last night, and it inserted and allowed me to close the drive (flip
the locking handle to the locked position). The link indicates that I
shouldn't be able to close the drive without that notch being present.
I didn't examine the mechanism as it locked, so it is possible that it
has a fail safe and although the handle showed locked, the transport in
fact wasn't. Or of course, the previous owner may have forced it locked
on an audio cassette and broken the transport. I guess I need to open the
drive again tonight and take a look.
It does give me hope that you think the tape might be in the range on an
Audio Class II tape. Those are easy and cheap to come by around here. The
local Tower Records sells them in lengths from 30 minutes to 120 minutes,
with all sorts of odd "match the CD" lengths in between. They are usually
in the $1 to $5 each range depending on brand, quality, length, and
number in a pack. I should take a look there tonight, I almost wouldn't
be surprised if they sell D/CAS tapes (if they were used in audio
equipment at any point, chances are Tower has a few of them).
-chris
<http://www.mythtech.net>
On May 15, 9:36, chris wrote:
> Somehow I suspect there are other reasons beyond tape length and lack
of
> a leader that makes it different from an audio tape.
>
> -chris
I found a little information that may give a cluue. Go to
http://www.cybergenetic.ca/ebook/wrh13.htm
and scroll down to the section headed "D/CAS". My tapes have the big
notch described. I think the coercivity of these tapes is about 600
oersteds (which makes them Class II); normal audio tape is about
280-320 (Class I).
--
Pete Peter Turnbull
Network Manager
University of York
On May 15, 9:36, chris wrote:
> On May 14, 21:40, Geoff Reed wrote:
> >theres no header on the data tapes (IIRC)
There is on mine, see below.
> That's a simple fix.
>
> Actually, if that is the only reason an audio tape isn't usable, then
I
> can custom order tapes from a supplier I use in the correct length
(600
> feet) and with no leader. I don't know the price for sure, but I
would
> venture to say no more than $2.00 per tape. (I get normal 120 minute
> tapes from him for about 60 cents a tape).
>
> Somehow I suspect there are other reasons beyond tape length and lack
of
> a leader that makes it different from an audio tape.
Probably. I have some 30/60MB Verbatim ones, which *do* have a leader.
I suspect they'e a different coercivity from normal audio tape.
However, I think the warnings about not using audo tape come from the
fact that cheaper audio tape used to be reknowned for being a little
abrasive, and for shedding oxide, which is not very good for streamer
performance.
--
Pete Peter Turnbull
Network Manager
University of York
Anyone know what this cable might go to:
Its an Apple looking cable (Apple Platinum, same physical connector style
as they used, and found in a box of Apple/Mac stuff... it just lacks an
actual Apple logo). It goes from 15 pin D-shell (Mac RGB style) to 9 pin
D-shell (PC Serial style).
Assuming it to be an Apple cable, it looks like it would go from RGB to
something. I'm not aware of any Apple monitors that use a 9 pin connector
however. I know there were some 3rd party ones for early Macs (some full
page monitors and the likes), but I didn't know of any that would
interface with the Mac's RGB connector. Of course, this doesn't rule out
that it is a 3rd party video cable that maybe went to a custom video card
(like most of the 9 pin using 3rd party monitors I have seen do, only
those that I have seen that use 9 pin have all been 9 pin to 9 pin, not
15 to 9).
So, has anyone seen a cable like this before that can do better job of
speculating what it is for. I am going under the assumption that it is an
Apple cable, but if anyone has seen a similar cable for the PC or other
systems, I'll be happy to entertain those ideas as well.
-chris
<http://www.mythtech.net>
Can't remember who was looking for this but....
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3023855791&category=41081
Brian Roth
Network Administrator
A+ N+ CNA CCNA
Network Services
First Niagara Bank
(716) 625-7500 X2186
Brian.Roth(a)FirstNiagaraBank.com
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Someone on this list was just asking about 10/100 NuBus ethernet cards
for the Mac. I saw this posting today, figured I would forward it along.
These go quick, so don't be surprised if it is already sold.
As usualy, reply to them, not to me.
---------------- Begin Forwarded Message ----------------
Date: 5/15/03 1:19 AM
Received: 5/15/03 9:13 AM
From: Lorraine Kerwood, raino(a)mindspring.com
To: LEM Swap List, lem-swap(a)mail.maclaunch.com
Go flying with your connection to your network!
Still in shrink wrapped, unopened box.
AsanteFAST 10/100 adapter for Nubus.
Systems supported; Macintosh computers with NuBus slots, including Power
Macintosh family, Quadra family, Mac II family, Centris 650, Performa 600,
and duo dock stations. OS 7 and higher.
Need cash. Make offer. Need to buy cat 5 cable and jacks for a comp lab.
Cashiers check or money order only.
Shipping from Eugene, OR 97402
raino
----------------- End Forwarded Message -----------------
-chris
<http://www.mythtech.net>
Help,
I have a North Star with Quad density floppies. Unfortunately I do not
have any software, operating system etc, can any one point me in the
right direction please.
Regards Graeme
In a message dated 5/14/2003 9:09:15 PM Eastern Daylight Time,
cb(a)mythtech.net writes:
> I just aquired a ClubMac tape drive that I want to test. It is a rebadged
> Teac MT-2ST/N50 cassette drive. I'm hunting around for info, and it looks
> like that uses a 600XD cassette.
>
> A regular audio tape cassette fits in it. Does anyone know if I can use
> regular audio tapes? Maybe a particular style of audio tape?
>
> I really just want to test the drive to see if it works, so if an audio
> tape will work long enough to write some data and read it again to make
> sure the drive functions, that should be enough. I don't really want to
> plunk down $15 for a data cassette for it to find that the drive is dead.
>
>
I have a number of data cassette tapes still in original packaging. A maxell
CS-600XD says 600feet length, 16,000ftpi and D/CAS-86 compatible. Have no
idea what that means.
--
Antique Computer Virtual Museum
www.nothingtodo.org
Greetings;
I've had a request from a friend who is trying to track down a copy of
MasterType for PCjr.
He's willing to pay a reasonable bounty for it, but isn't going to pay a
Lords ransom.
Thanks all;
JP Hindin
Hi all.
I'm in the market for any Ohio Scientific Challenger machines. If you've
got one you'd consider selling, please contact me at this e-mail address.
Thanks!
Sellam Ismail
925/294-5900
I noticed this relevant article on the BBC site this morning. Aside
>from a one or two inaccuracies (i.e. Minitel preceding the Internet),
and this being kind of a filler story, it's good to see classic
computing getting coverage in the news.
-> France's Minitel: 20 years young
->
-> The history of the internet is measured in dog years -
-> if you've been using it for 12 months, you're an old hand;
-> since the 1990s, and you're a veteran.
->
-> But as far back as 1983, a band of pioneers started using
-> electronic networks to communicate, share information and
-> work more efficiently.
->
-> No, not Silicon Valley geeks, nor US military scientists -
-> but ordinary French people, long derided as the worst of
-> technophobic old Europe.
->
-> Minitel, France's precursor to the internet, is 20 years
-> old, and rumours of its demise have repeatedly proved
-> exaggerated.
->
-> [...]
Full article: <http://news.bbc.co.uk/2/hi/business/3012769.stm>
-brian.
> I am leaving the hobby/lifestyle of classic computing. I will not
> participate in any discussion of the reason. The decision has been made.
Thank you for your contributions to this list. May you life be long and
happy.
Best regards,
Glen Goodwin
0/0
Anyone got a link to a picture of a Televideo 2605?
If it's the one I remember... Televideo's PC/AT Color screen
and a box on the side holding 1 10mb hard drive and 1
5.25 floppy.
Thanks
Picked up a iMMIX videocube today auction and have been trying to find out
more about it on the web? Most of the links are bad that have gotten back
doing a google search. In the same lot was a PowerPC 8100/100 tower and a
6116CD.
>> On another list I am on, we were discussing why DOS is still used today
>> (basic answer, because its working just fine, so why upgrade).
>> The following questions were posed that I don't know the answer to, but
>> someone here might.
>
>The questions are meaningless without clarification and/or parameters.
I was trying to leave it vague, specifically because I WANTED to elict
discussions like "Does Voyager count?". I wanted to see what the general
opinions of list members were regarding what they felt was the oldest
computer or computer system still in regular use. If I tried to clarify
it too much, then I risked people not answering because they felt it
didn't qualify (I'll be the judge of what I feel doesn't qualify for
myself, but I wanted all opinons regardless).
>> 1: What is the oldest computer or comptuer system still in normal
>> operational use
>
>You havn't even clarified whether you mean individual machine, or design.
>Individual machine: stonehenge
>design: abacus
Although both are valid, I was really after an electronic computer
(although I don't care if it is digital or analog).
Actually, answers like these are why I left it vague. I hadn't even
thought about either answer, and both are fully valid. They are old
"computing" systems, still operating today. Had I clarified my question
with specific parameters, then you might not have suggested them as
possible answers.
>> 2: What is the oldest that is connected to the internet
>
>Continuously connected? or just the oldest machine that is now connected?
>For example: if today somebody connects a Univac, would that count?
>Are you really after which machine is the oldest of those that are
>connected? or are you REALLY after whgich machine has been connected
>longest?
I'm just curious what the oldest someone has gotten connected to the
internet is. So someone finding a way to connect a Univac, even if it is
just for 10 minutes to see if it can be done would be acceptable to me.
This question had a 2nd part to it that asked what was the oldest that
was hosting a web site (although in rethinking my own question, I would
accept any kind of public accessable internet connected server be it web,
ftp, telnet, or whatever). So this part would imply a longer duration
connection.
BUT, you also bring up an interesting 4th question... what computer has
been connected to the internet the longest (and in addition, which one
has the longest single continious uptime of internet connection and how
long is/was that)
-chris
<http://www.mythtech.net>
> Wonder if Storageworks ever offered
> an SDI/RA* series converter?
Now that would be nice! Unfortunatly to the best of my knowledge they
didn't. Something like that would be nice for my MicroVAX III.
Zane
A month or so ago someone on the lsit was fussing that they couldn't
find any ZIF type PLCC sockets. I picked up a small cirucit board that has
a Textool 64 pin PLCC ZIF socket on it. You can have it for the cost of
shipping if you need it. The ZIF socket is mounted in a soldered on socket
but isn't soldered itself. The socket is bolted to a metal plate that's
bolted to the circuit board. You'll have to take ti apart yourself.
Joe
Went to one of my favorite scrounging places today and found that they
had a forest of HP cabinents! They had all been dumped off of a truck and
were piled up and leaning on each other like a bunch of dominoes. I stood
up as many as I could and nearly lost three fingers in the process when a
HP tape drive swung open and scissored on my hand! Luckily someone else was
there to grab the drive and swing it closed. But it was worth it! I found a
lot of HP 7970E tape drives, a bunch of HP 7912 disk drives (and some of
them even say that their heads were locked down!), a HP Multiprogrammer, a
bunch of HP power supplies AND (drum roll!) ONE LOADED HP 1000! This beast
is a 2117F and has the floating point unit, an expansion chassis, a 13037D
(MAC?) disk drive interface, a 7906D disk drive and a 7970 Tape drive and
even the battery power backup. The computer is LOADED. It has 3x 256k
(words) high performance memory boards, 2x 512k HS error correcting memory
baords, an ECC memory controller, a I/O Buffer card, two sets of 7970 tape
drive controller cards, two Line Printer controller cards, a time base
card, a 13037 interface card, an HP-IB interface and three BACI
(communications) cards and the manadatory MEM, DC PC and Mem Protect cards.
The expansion chassis has three programmable direct connect serial
interfaces, a BUS I/O card, and two more BACI cards. I got EVERYTHING that
wasn't nailed down including the cables! The CPU has the followoing Loader
ROMs installed; 264x Terminal, "12992-50000", 79xx Disk and 7905/20 Disk.
Does anyone know what the "12992-50000" is? 12992 is the right pre-fix for
the loader rom PNs but I've heard of a -50000 ROM and it's not listed in
any of the docs that I can find.
Joe
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thank you for your replies! From today's digest, they are:
?. Re: Working 8" Floppy drives??? (Fred Cisin,
from an earlier digest)
2. Re: Working 8" Floppy drives??? (Ethan Dicks)
4. Re: Working 8" Floppy drives??? (Jochen Kunz)
7. Re: Working 8" Floppy drives??? (Peter Turnbull)
11. Re: Working 8" Floppy drives??? (Tony Duell)
12. Re: Working 8" Floppy drives??? (Tony Duell)
Including all of these messages in my reply would be a
misuse of bandwidth. Please see the original text of the
replies.
? Re: Working 8" Floppy drives??? (Fred Cisin)
from yesterday's digest?
Fred asks if we have considered substituting 1.2M 5.25"
drives. Hmmmm. I didn't know there were such drives.
I know of DSDD 360K 5.25 drives and 1.44M 3.5 drives,
even 720K 5.25 drives, but not 1.2M 5.25 drives.
On the general subject of using a substitute drive. I
have actually been considering if this could be done. I
have not suggested doing that because I need to find out
the feasibility. I would hope we could at least get into
the 1990s with a 1.44M 3.5 in floppy drive.
2. Re: Working 8" Floppy drives??? (Ethan Dicks)
4. Re: Working 8" Floppy drives??? (Jochen Kunz)
7. Re: Working 8" Floppy drives??? (Peter Turnbull)
12. Re: Working 8" Floppy drives??? (Tony Duell)
These replies will probably be helpful to someone with a
hardware background (which I'm not). They point out the
complexities of substituting one type of drive
for another. This level of complexity is about what I
expected.
11. Re: Working 8" Floppy drives??? (Tony Duell)
Your answer is not silly at all. I didn't know whether
such drives would be very rare or plentiful in the
"vintage" market. I see now that there are "plenty" of
them. The obvious questions, once I know what drives are
compatible, are: Are they actually for aale? How much
will each cost? What condition are they in? I don't
think my client is prepared to pay for "priceless
antiques". He considers these to simply be old hardware
that he needs to buy.
The client has been repairing the drives for years. They
are in heavy constant use. I get the impression that
they are simply getting too fragile to repair.
The client seems to have the impression that 8" floppy
drives are very hard to find. While I think that
upgrading the system to be based on, say, 1990 technology
rather than 1980 technology is a good idea, I am sure
they can make the existing system work for quite a while
with an adequate supply of replacement drives.
Regards,
Nick Garnett
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a message dated 5/13/2003 4:04:19 AM Eastern Daylight Time,
hofmanwb(a)worldonline.nl writes:
<< A charity I do some work for has an IBM PS/1 they would wamt to sell.
80386/16. 40 Mb HD, color monitor, dutch handbook. Location Arnhem, The
Netherlands. >>
That sounds like the 2121 model which uses the display to power the CPU.
Worth maybe $20USD
>Plutonium is an extremely toxic metal. 1 microgram will kill you damn
>quick.
>Plus it's readily absorbed by tissue, which means everywhere you have a Pu
>speck, you're irradiating tissue with ionizing radiation in a few centimeter
>radius. Not good for a long term outlook.
Ok, that answered the other question I just posed, that is, how dangerous
is it.
Sounds like its some pretty nasty stuff so an explosion WOULD be of
actual concern.
> Incidently, the tree huggers worries on this matter are not completely
>unfounded. Because of launch weight issues, the shielding material is not
>really designed to survive reentry.
And add to it like Dwight said, NASA's track record for screwing things
up... and yeah, I guess there was a good cause for concern. I could see
it being less of an issue in the past when NASA spent tons and tons of
money on a single probe, but these days, when they seem hell bent on
getting the cost under that of a VW Bug, I would expect more accidents to
occur.
-chris
<http://www.mythtech.net>
Hello to you all with a PCjr still lying around dormant in the dust! I have recently aquired a Racore HDD expansion chassis (Model 1500/1501) . There was no doubleheight sidecar with it, but I have normal and DMA extras to install. A gentlemen from "Computer Reset" believed the system used the DMA sidecar, but for the life of me, I can not get power to the unit. The expansion chassis does not have the standard power supply found on the floppy units. It has, instead, a powerboard, but where the power input would be on the floppy units, there is instead a serial port.If anyone has the setup instructions for this model or knows off hand how to set it up, Id appreciate the help in getting this neat "extra" setup and working. Thanks Brian
The New Yahoo! Search - Faster. Easier. Bingo.
>From: chris <cb(a)mythtech.net>
>
>>From what I remember, those probes (and most (all?) other deep space probes, I
>>think), use a radioisotope decay generator for power. This is a
>>sub-critical-mass nuclear power plant; it uses the heat produced by a
>>near-critical lump of plutonium to generate electricity, rather then using
>>fission to produce heat to produce electricity.
>
>So is this the power supply all those whiney people were bitching about
>NASA trying to put into a Mars probe? They were all afraid the probe
>would explode during launch and be ground zero of a nuclear blast (or
>some other most likely vagely based on reality doomsday outcome activists
>are notorious for).
>
>-chris
><http://www.mythtech.net>
>
Hi
You can't even get a pile of plutonium of greater than critical
mass to blow up, by it self. It will just get hotter and hotter
until is melts or if contained long enough to vaporize. To
make a bomb you need to increase the neutrons quickly. In
a bomb, this is done with a thing called a trigger.
What most where worried about was just the accidental
spread of radioactive material in the atmosphere. I don't know
about you but I don't like breathing that stuff if I don't
have to. The problem is that NASA doesn't have a good track
record for using common sense to avoid accidents.
I'm still in favor of them using the radioactive power sources
for the probes, I just wish it was someone else determining
when and how it was safe to launch them.
Dwight
> > True, but I doubt that Hans or any of the rest of us are planning on
> > trashing the originals after they've been copied.
>
> Maybe not on this list, but I have seen it happen far too often
> elsewhere. People think the latest/greatest storage media must be more
> reliable that something that's rather more ancient...
For some of the stuff I'm copying to more modern media, I have to keep the
originals, even if it becomes unreadable, in order to be legal.
In some cases I've had to archive the original material, and then reuse the
original Media (RL02's come to mind).
> > I think the thing to remember is, just because you've transferred
> > something from original media to "modern" (for the moment) media, you
> > aren't off the hook forever. Those same copies will have to be
> > copied to "modern" media at some point in the future. Depending on
>
> I would never want to rely on this happening, simply because it won't
> always happen. People forget, or they assume tbat nobody will ever what
> 'that old file'. And then it's lost for ever.
I'm trying the following with my archive of DEC stuff.
1. I have the archive on my fileserver (I prefer keeping copies on two
different spinning hard drives).
2. I have two backup copies, one I keep, and one my parents keep.
3. I update #2 when additions are made to #1, keeping the previous backups.
Zane
I spent last weekend at the European Vintage Computer Fair
(www.vcfe.org) in Munich. I didn't take anything along for display
myself, but spent the time looking at what the others had brought.
I guess my favourites were the CP/M portables, since I haven't played
with one for years. Gaby Chaudry (www.gaby.de) had brought along a
Kaypro and an Osborne 1. I'm not sure how we ever survived with the
tiny screen on the latter.
Other highlights: a nice display of disk drive head assemblies, from the
huge to the miniature; evolution of the Mac LC (I'm not into these, but
it was interesting); an IDE interface for the Z80 (if they ever do an
8080 version I'll take one); lots of old machines doing very impressive
things, showing that there is still effort going into to programming and
updating.
I suppose the thing which came home to me was how there was an explosion
of PC design in the late 70s/early 80s before things converged to the
IBM/Apple paths.
Tours were running to see the Cray-4 & Cyber 960 (www.cray-cyber.org)
and I went along for a look. The temperature reminded me of when I had
my 360/30 running. These machines are available for remote access, the
Cray runs 24 hours a day.
I paid a quick visit to Hans Franke's warehouse, I'm sure he has one of
everything hiding there somewhere. I haven't seen a SC/MP evaluation
board for, well, decades.
Hans' presentation on storing vintage computer data as XML made me
realise that the most important thing is to get everything preserved,
and then work out what to do with it. I could store everything I've
ever written on an 8-bit computer in a corner of my existing hard drive
and not even notice it was there. I've got to dig out all those KCS
cassettes, ASR33 printouts and even a few bits of paper tape and get
them transferred.
Finally, I visited the Deutsches-Museum in Munich for a final fix of
computer stuff (www.deutsches-museum.de/e_index.htm). They have a very
good display of calculating and computing machinery, from ancient
instruments through Zuse Z3, Univac, IBM360 up to a Cray 1. I have a
soft spot for the 360/20, even if it's not quite as good as a /30.
Thanks to Hans for all his organisation, and to all the others that made
it such a good weekend. I will be back next year, hopefully as an
exhibitor.
--
Lawrence Wilkinson ljw(a)formula1.demon.co.uk
Ph +44(0)1869-811059 http://www.formula1.demon.co.uk
Found another HP 1000 today :-) It has three CCAs that I can't identify.
They're all PN 5061-3432. Besides the usual TTL logic they have the
following socketed ICs; 8 4116 memories, one EPROM and the following Zilog
ICs; (2) Z8430A PS, (2) Z8410A PS, Z8400A PS, Z8442A PS. Anybody know what
these are?
Joe
I am leaving the hobby/lifestyle of classic computing. I will not
participate in any discussion of the reason. The decision has been made.
What remains is to divest myself of my remaining collection. Part of that
process is underway in private dealings with certain individuals. The rest
of my collection will be offered in lots on eBay. If you don't like that,
tough. I believe that eBay is the best way to get the word out about
available items, the best way to deal fairly with prospective takers, and
the best way to ensure that the items go to good homes. The first set of
auctions will begin in the next few days. I will consider trades for other
items; a list of things I am seeking will accompany each auction.
I will continue my duties as list moderator for some time. Jay will see to
the long-term continuation of list services.
--
Jeffrey Sharp