---------Original Message:
Message: 11
Date: Tue, 13 Feb 2007 19:31:14 +0000
From: Philip Pemberton <classiccmp at philpem.me.uk>
Subject: Re: WTD: Fuse PROM programming algorithms
<snip>
TI are nice enough to put their programming algorithms online, I've found a textual
description of the NatSemi algorithm (though it would be nice to have the
timing diagrams, if any), and I tracked down an old rev of the 82S129
datasheet that includes some info on the Signetics Generic I algorithm. Those
three would be enough to get by on for now, but it would be nice to have read
and write support for e.g. the Intersil and Monolithic Memories chips.
As dictated by Sod's Law, I've got the Intersil linear databooks, but not the
logic/PROM/whatever databook. As far as MMI goes, I can't even find a copy of
the relevant databook for sale, hence why I asked for scans or photocopies
(I'm not fussy about which, and I'm willing to pay for the copying and
shipping/postage).
Thanks.
--
Phil
-----------Reply:
If you don't find 'em elsewhere, I've got Harris ('78), Intel ('76), Signetics ('78)
and National ('77) databooks in front of me. Don't know about Intersil; was looking
in the MMI book a while back, but now I can't remember where I put it down at the
time (probably the same place as the cordless phone ;).
mike
--- der Mouse <mouse at rodents.montreal.qc.ca> wrote:
> > [...] be advised that acetone will also (in my
> experience) turn some
> > plastics into grainy mush, [...]
>
> Well, I did first try applying acetone to a
> noncritical area of the
> same part, to see what it would do.
>
Yes, acetone also disolves polystyrene.
Some uni/college student visited the lab where
I work (I'm a technician, not a chemist, and
my chemical knowledge is limited other than
what I have learnt at work over the last 8
years) a few years ago and decided to clean
the runners on the plastic slidey doors (do they
have a proper name?) on the side of one of
the balances.
Naturally, as someone else mentioned, the
acetone turned the plastic into mush and
the door become tough to open, often sticking,
instead of being smooth and easy.
Generally, we use acetone to clean marker pen
off of glass equipment (eg. volumetric flasks)
and for cleaning oil/grease out of the metal
cups (we test for fat/oil/grease content in the
waste water from factories that send there
waste into our* sewers)
Getting it back on topic... is there an easy
was to determine which computers/peripherals
can be cleaned safely with acetone, or similar
substances?
Regards,
Andrew D. Burton
aliensrcooluk at yahoo.co.uk
* I work for a well known UK water company, mainly b
ased in East Anglia.
M H Stein wrote:
Do have a few manuals on other plotters. Recently found one on a Houston
Instruments plotter. It'll go to Al the next time we get together.
Billy
==Mike's Reply:
Which Houston plotter? 595/695 ?
mike
--------------------
Don't know. It is up in Pleasanton in a big pile of stuff for Al, next time
I see him. I'm going up on the 24th, so I'll try to have a look then. I
just buy stuff like this manual when I come across them at flea markets,
etc. Give them to Al for his archives.
Billy
> I know Al and a few other people have setups for digitizing the analog
> outputs of the read heads for 7-track and 9-track magtapes, but has
> anyone concocted a similar beast for the DC100 or QIC tapes?
>
> Is it even possible?
Yes, it is probably what I'm going to have to use to recover
the Tektronix 4051 tapes that I got from Jim Willing.
It shouldn't be to difficult to do something similar with heads
that don't move (HP, Apple Tape Backup, etc). Fiddling with the
firmware for QIC drives with serpentine recording is more difficult
Would be a PA8E1
Seagate changed the part numbers when they took over
the product line.
I don't think it has a manual head lock
Have a manual scanned, will get it on line.
Hi,
I'm currently looking for information on programming algorithms for the old
fuse-link PROMs (Signetics 82S series, AMD 27S series, National Semiconductor
74S series, TI 18S series, Harris/Intersil 7000 series, Fujitsu 7000 series
and MMI 6000 series). Does anyone here have copies of the memory product
databooks from any of these manufacturers?
I've got the Signetics Generic I algorithm (but not Generic II), and part
of the NatSemi algorithm (text only, no timing diagrams), and nothing at all
for the others.
Main reason I'm asking is because I'm designing a programmer to do the 82S
series, and I'd like to make it as universal as possible - i.e. if possible,
I'd like it to be able to read and program the other chips too.
I'm willing to pay for photocopies of datasheets, or the entire databooks
if you'd rather sell the book itself.
Thanks.
--
Phil. | (\_/) This is Bunny. Copy and paste Bunny
classiccmp at philpem.me.uk | (='.'=) into your signature to help him gain
http://www.philpem.me.uk/ | (")_(") world domination.
I'm preparing to have several 8" sealed HDA SMD drives shipped to me.
They're what Prime called a model 4735 496 MB drive, and CDC called
(I think) a 9720-500.
If the manual is on Bitsavers, I don't know what it looks like.
Is there a shipping lock on the heads of these drives? How to set it?
Thanks,
De
---------------Original Messages:
Message: 23
Date: Tue, 13 Feb 2007 12:20:55 -0800
From: "Billy Pettit" <Billy.Pettit at wdc.com>
Subject: pen plotters?
Richard wrote:
As difficult as it is to find information on vintage terminals, its
even harder to find information on vintage pen plotters. A pen
plotter was about the only form of graphical output you could expect
to see on a vintage graphics system as film recorders were very
expensive.
OK, what do you have in your collection(s)?
---------------------------------------
==Mike's Reply:
HP7475A
CGP-115
=================
Do have a few manuals on other plotters. Recently found one on a Houston
Instruments plotter. It'll go to Al the next time we get together.
Billy
==Mike's Reply:
Which Houston plotter? 595/695 ?
mike
Has anyone here read this book by Edwin Black?
http://www.amazon.com/IBM-Holocaust-Edwin-Black/dp/0751531995/sr=8-1/qid=11…
I have. I was wondering what everyone else thought about it.
The book makes me hate things like paper...
I'm not trying to stir anything up here. I don't blame IBM as a company or
dislike any of its products because of it. But reading the book was sure
an eye opening experience. I just wanted to start the discussion for
now. I don't have time right now to write anything decent right now.
Grant
> From: Jim Leonard <trixter at oldskool.org>mat=flowed
>
> Marvin Johnston wrote:
> > I've been doing that for some time, and probably have about 50 or so stockpiled.
> > BUT, it may be just a waste of time. I put up 20 100-450 MB IDE and SCSI HDs on
> > VCM, then Ebay, and back on VCM more out of curiosity to see if there was a
> > demand. Right now, there doesn't seem to be.
>
> Eventually, there might be. IDE drives from 300-500 (but under the
> 540MB BIOS limit of early 386s) are still somewhat sought after. I
> wouldn't expect more than $5 for each drive though.
I think the $25.00 for a quantity of 20 drives is under $5.00 each :).
At 09:58 PM 2/10/2007, you wrote:
>On 2/11/07, Grant Stockly <grant at stockly.com> wrote:
>>
>> >Did anyone make S-100 SCSI? One could roll ones own, but that's a
>> >different level of expense.
>>
>>The 5380, 3 resistor packs, a '138, couple latches, and about 10 square
>>inches of an S-100 breadboard card.
>
>Right... the SCSI chip is cheap enough (and supported under Minix,
>probably, since there were several 3rd party Amiga controllers with
>the 5380), but the real expense is the breadboard card.
Really? I guess I don't know where to get those. I've got one and I just
keep reusing it. They'd be $20 plus shipping if were to make some. Any
interest?
Of course, if I made a SCSI card they would be $10 without parts. (not
full size S-100) ; ) SCSI is kind of dead, but it would be a fun card to
make...
Grant
> From: Dave McGuire <mcguire at neurotica.com>
> Speaking of which...does it make sense to start preserving
> (hoarding) older, low-capacity hard drives, be they IDE or SCSI, for
> smaller machines? They seem to be drying up fast.
I've been doing that for some time, and probably have about 50 or so stockpiled.
BUT, it may be just a waste of time. I put up 20 100-450 MB IDE and SCSI HDs on
VCM, then Ebay, and back on VCM more out of curiosity to see if there was a
demand. Right now, there doesn't seem to be.
Richard wrote:
As difficult as it is to find information on vintage terminals, its
even harder to find information on vintage pen plotters. A pen
plotter was about the only form of graphical output you could expect
to see on a vintage graphics system as film recorders were very
expensive.
OK, what do you have in your collection(s)?
--
---------------------------------------
Have a Calcomp 565 drum pen plotter circa 1963. Includes manual with
schematics. And also has someone's home brew interface design to an 8080 on
a paddle board.
Do have a few manuals on other plotters. Recently found one on a Houston
Instruments plotter. It'll go to Al the next time we get together.
Billy
I've recently managed to get my HP 88780 drives to ALMOST work with a PDP-11/34a.
The controller I'm using is an Emulex TC13, TS11 compatible.
Tape movement control seems fine, but data transfers are a problem. At most I've
been able to get the first one or two blocks read or written. However, the TC13
errors out and usually puts the drive offline. ultrix 3.1 and xxdp both choke when
trying to talk to the 88780 drives.
So, thought I'd check... Does anyone have an HP 88780 drive working with an Emulex
TC13 controller? As I've tried three different drives I'm starting to wonder if
the TC13 simply won't communicate well with the 88780.
Please respond to staylor at smedley.mrynet.com if replying directly, or to the
cctalk list.
TIA,
-scott
On 13 Feb 2007 at 10:14, Marvin Johnston wrote:
> Yes, I too read the book and found it interesting. However judging by
> quite a few comments from a google search, it appears that there might
> be a bias and some inaccuracies in the book. Regardless, it does make
> for a rather interesting read.
I first came across this topic when it was published as an article in
IEEE Annals of the History of Computing. I've subsequently read
critiques of the cited book as being inaccurate and biased.
I can only observe that commercial interests will chase a profit no
matter where it comes from. Henry Ford sold trucks to Stalin;
Prescott Bush and George Herbert Walker did business with the Third
Riech. The Forbes and Delano families sold opium to the Chinese.
The Chinese in turn are getting oil and gas from Sudan.
And so it goes. It's the nature of human existence.
Poke at almost any pile of money long enough and you'll find a
scoundrel, murderer or horse theif.
What this has taught me that corporate monied interests are amoral,
looking only to increase profit. Similarly, governments largely
exist to serve their own interests and, for the most part, not the
interests of the governed.
Our job as citizens of the world is not to expect these tigers to
change their stripes, but rather to make sure that their actions are
kept in the bright light of public scrutiny. Attempts to hide under
some notion of confidentiality or secrecy usually provide fertile
ground for mischief and need to be resisted.
Cheers,
Chuck
Chuck Guzis wrote:
I first came across this topic when it was published as an article in
IEEE Annals of the History of Computing. I've subsequently read
critiques of the cited book as being inaccurate and biased.
Cheers,
Chuck
-------------------
This reminded me that I've been looking for copies of the Annals for a long
time. I had to drop out when my IEEE subscription bill passed $300 a year.
Just couldn't afford all those magazines.
Now I'm sorry that I did that and have been searching for copies. Any list
members have any issues they would be willing to part with? I would really
like to catch up.
Please write to me off line if you have any issues you can part with. Will
go to a good home and be read!
Billy
billy.pettit at wdc.com
>
> As difficult as it is to find information on vintage terminals, its
> even harder to find information on vintage pen plotters. A pen
> plotter was about the only form of graphical output you could expect
> to see on a vintage graphics system as film recorders were very
> expensive.
>
> OK, what do you have in your collection(s)?
My company used to write pen plotter drivers for the Mac, we still
sell the odd one. We used to get loads of pen plotters loaned to
us by the manufacturers, and we hung on to the manuals when
we could (which we usually managed). So I still have quite a
library of data on the command sets for the ones made from
the early 80s onward. If anyone wants any details I can probably
help somehow, just have to be sure I'm not going to be sued for
copyright infringement.
As for actual plotters (not my personal property though, just 44% mine):
HP DraftMaster MX Plus,
HP 7475A
Graphtec MP3200
What I would like to get my hands on is an HP 7550 in the UK.
I saw one last week on eBay in the US but shipping would be
too expensive.
Roger Holmes.
(Technical Director and 44% shareholding of Microspot Ltd)
Chuck Guzis wrote:
>Our job as citizens of the world is not to expect these tigers to
>change their stripes, but rather to make sure that their actions are
>kept in the bright light of public scrutiny. Attempts to hide under
>some notion of confidentiality or secrecy usually provide fertile
>ground for mischief and need to be resisted.
This quick statement summarizes in very elegant form, the foundations of
what government by the people and for the people should be all about.
I can't agree more. Problem is, the vast majority of folks exist either
in blissful ignorance; fear; or lack of resource/understanding to
challenge the status quo.
I generally stay away from making any political statements online, but
Chuck's great observation struck such a chord with me that I had to
respond.
Apologies for the lack of "on-topic" content. But, this stuff affects
us all.
Rick Bensene
The Old Calculator Web Museum
http://oldcalculatormuseum.com
On 13 Feb, 2007, at 18:02, cctalk-request at classiccmp.org wrote:
>
> I'm looking for a box or two of bog-standard 5081 punch cards.
> Besides
> Cardamation, is there anyone else who still has these?
I have some in the UK, so probably no good to you, and they are not
QUITE
the same as 5081, they are the same width and height but very
slightly thinner,
and marked up as 40 column mark sense cards, but my mainframe reads
and punches them fine, and my IBM keypunch used to punch them before
its drive belt broke. They are marked Kent County Council CDC 6998 & A.
I bought 110,000 of them back in the 70s, put them in my father's
Daimler
car and drove home. Next day my father backed the car out of the garage
and found I had broken the Panhard rod. Not noticeable going forwards
but going backwards the axle waggled from side to side and the rear
tyres
rubbed on the wheel spats (the Daimler V8-250 is a Jaguar Mk2 with a
2.5 Litre V8 Daimler engine in it).
By the way you didn't say if you wanted inner boxes of 2000 or outer
boxes of 10,000.
Roger Holmes, England.
> Once something winds up in a museum or someone's
> collection, you can consider it lost essentially.
With a few notable exceptions.
> I commented to him about something in the past, and
> got back a hate filled response from him and would never buy
> anything from this guy.
There is a VERY special place in Hell reserved for
"New Beginnings Antiques"
I would be very surprised if CHM doesn't have a copy
of this. I'll see what I can do about getting it scanned.
There's actually a few really nice looking older plotters on ebay at the
moment, two search examples will yield some really nice results....
HP X-Y
X-Y Plotter
The first will get some nice HP units including a pretty vintage one. The
second will get you some other interesting hits from Roland and Bausch &
Lomb.
Jay
> From: Grant Stockly <grant at stockly.com>format=flowed
>
> Has anyone here read this book by Edwin Black?
> http://www.amazon.com/IBM-Holocaust-Edwin-Black/dp/0751531995/sr=8-1/qid=11…
Yes, I too read the book and found it interesting. However judging by quite a
few comments from a google search, it appears that there might be a bias and
some inaccuracies in the book. Regardless, it does make for a rather interesting
read.
Hello cctalk at classiccmp.org<mailto:cctalk at classiccmp.org>
I am insterested in an answer to the following questions:
What is the dollar value of a HP 9845S Desktop Computer in good condition ? Also, the value of a 9895A Flexible Disc Memory unit with two 8 inch drives and a Controller POD with HPIB cable.
Send replies to: amaxwell800 at msn.com<mailto:amaxwell800 at msn.com>
If you would like to own one as well, then send me an email with your direct contact information.
Thank's . . . amaxwell800
