We also have a LGP-30 on display at the Computer History Museum.
Marc
> On Aug 15, 2024, at 4:49 PM, Rick Bensene via cctalk
> wrote:
>
> Mark L. wrote concerning the LGP-30 computer in the LCM+L/Paul Allen
> Auctions:
>
>
>> I dare to bet it's the last one. Anywhere.
>
>
>
> It isn't t
First one. Sounds vintage, is not musically annoying like most of the others,
and has a nice easter egg in it.
Marc
> On May 9, 2024, at 12:31 PM, John Herron via cctalk
> wrote:
>
> Do you know who your demographic or age is that you're trying to attract to
> watch the videos?
>
>> On Fri,
Yes the oscilloscope are your eyes and ears for electrons…
Marc
> On May 1, 2024, at 11:44 PM, Dominique Carlier wrote:
>
> Hi Marc !
>
> It should be so great if it was just the PSU, everything else is hyper
> overkill in terms of complexity but on the multimeter all the voltages show
> th
Power supply problem?
Marc
> On Apr 30, 2024, at 8:58 AM, Dominique Carlier via cctalk
> wrote:
>
> Hello everyone
>
> I need your help to identify an issue on my Diablo Model 40 Series. I don't
> know where to look, it's so vast !
>
> Here's the problem:
> When RUN is activated, the drive
Awesome!
Marc
> On Dec 3, 2023, at 4:00 AM, Mattis Lind via cctalk
> wrote:
>
> Hello!
>
> I have an ongoing project to restore a Datapoint 2200 version II and in the
> process of doing so I created a small simulator for it to understand it
> better. The simulator is now in the condition that
Sweet. This encyclopedic! Thanks a lot!
Marc
> On Oct 2, 2023, at 11:29 AM, Jonathan Chapman via cctalk
> wrote:
>
>
>
>
> Very cool, thanks for sharing! I didn't know such a tabulation existed!
>
> Thanks,
> Jonathan
>
> --- Original Message ---
>> On Monday, October 2nd, 2023 at
I have both, and I end up using the 1670G most of the time because it is so
much more convenient. The acquisition cards on the 16xxx keep failing too.
Marc
> On Aug 20, 2023, at 12:43 PM, Glen Slick via cctalk
> wrote:
>
> On Sun, Aug 20, 2023, 12:05 PM John H. Reinhardt via cctalk <
> cctalk
Very impressive. Congratulations!
Marc
> On Jul 11, 2023, at 3:23 AM, Jay Jaeger via cctalk
> wrote:
>
> Over the past couple of months I have been working on my FPGA implementation
> of the IBM 1410 1960's era pre System/360 system again. I am pleased to share
> that the CPU now passes a si
Very nice writeup!
Marc
> On Jun 26, 2023, at 5:06 AM, Steve Lewis via cctalk
> wrote:
>
> VCF SW was this past weekend near Dallas, Texas.
>
> Here are some highlights from my perspective.
>
> https://voidstar.blog/vcf-southwest-2023/
>
>
> Most photos you can click to enlarge (Edge has b
The cafeteria is open, there is a Starbucks and even a nice Italian across the
street if you want to treat yourself. On Wednesdays we have a demo of the IBM
1401 at 3 pm, and before that the restoration team works on it from 10:30 am on
(it needs constant maintenance and repairs to keep it runni
one
> thread "Cctalk subscription disabled"
>
>
>
>
>
>> On Tue, May 17, 2022 at 10:26 PM Curious Marc via cctalk
>> wrote:
>> I have been auto-rejected from the list again, due to too many bounces,
>> whatever this means. But I swear I have
I have been auto-rejected from the list again, due to too many bounces,
whatever this means. But I swear I have been a good boy and did not bounce too
much! This is a plain vanilla gmail account by the way. Does anyone have any
idea why this keeps happening? Anything I can do about it?
Marc
Thanks for the link. I met him when I was at Bell Labs. He was an outstanding
technology speaker and writer, with a great sense of humor. His columns were
hilarious and right in target. A written form of Dilbert for the technologist.
Marc
> On Apr 7, 2022, at 10:41 AM, Jim Brain via cctalk
> w
You don’t strictly need an inhibit wire to write cores. You can write the core
with just the addressing lines. The inhibit wire is just there to simplify the
addressing electronics logic in early core memory, so you don’t need to have
per core control of the current in the address lines when wri
Awesome! Congrats to everyone involved!
Marc
> On Mar 28, 2022, at 12:24 PM, js--- via cctalk wrote:
>
>
>> On 2022-02-25 16:09, js--- via cctalk wrote:
>>
>> Hi, folks.
>>
>> I've a HP 9915A computer with an interesting problem. The motherboard
>> utilizes a ceramic Intel D8048 chip.
Ah, it was you Liam. Ken is enamored with the new title you bestowed on him. He
will now be officially called: Master Ken, Hardware Boffin.
:-)
Marc
> On Jan 27, 2022, at 11:54 AM, Liam Proven via cctalk
> wrote:
>
> On Thu, 27 Jan 2022 at 17:20, Guy N. via cctalk
> wrote:
>>
>> This migh
Dominique,
Nice to see your machine working so well! I like how it lights up from the
inside. To connect it to a computer, you could simply get a Volpe board that
does the Baudot 60 mA loop to ASCII RS 232 conversion for you, or build one
yourself like I did. Info on both here:
https://www.curi
Yes. Doh. 8-1/2 inch rolls of thermal Fax paper on ½” core. Sold at Staples. $3
a roll. Works like a charm.
Marc
> On Nov 4, 2021, at 3:06 PM, Ron Pool via cctalk wrote:
>
>
>>
>> On that subject, can anyone recommend a source for the thermal paper used in
>> the Silent?
>
> I just use th
Yes, I have ruined a few printouts using the isopropanol method ;-) . On that
subject, can anyone recommend a source for the thermal paper used in the Silent?
Marc
> On Oct 31, 2021, at 9:36 PM, Tony Duell via cctalk
> wrote:
>
> On Sun, Oct 31, 2021 at 11:40 PM Fred Cisin via cctalk
> wrote
Yes, I tried switch #4 and that did not do it. I opened it up, no other obvious
jumpers. The processor doesn’t even say TMS 7041, it’s a custom numbered part.
Not that I am complaining, I am fine with my blazing fast gamer’s TI 703 with
overdrive. I’m just surprised they did not label it anywher
I use Teraterm too. Works both on Windoze and Mac. I like the ability to run
scripts.
Marc
> On Sep 30, 2021, at 5:51 PM, Lee Courtney via cctalk
> wrote:
>
> We use Teraterm at work - adequate, free, open-source(if that's important),
> meets our needs for embedded development across a wide
Excellent idea! I had not thought about it. I’ll look into it.
Marc
> On Sep 8, 2021, at 8:25 AM, Chuck Guzis wrote:
>
> As long as you don't need the full blower capacity, you can probably do
> the 3-phase-to-single-phase trick by using a capacitor from the third
> lead to either (which one w
Yes, we are hoping that we can power the blower with 3 phase and the rest
directly from the 240V electric car circuit… Not sure if that can be rewired
for that.
Marc
> On Sep 6, 2021, at 6:50 AM, Patrick Finnegan wrote:
>
>
>> On Mon, Sep 6, 2021, 06:36 Curious Marc via cc
I got both the 3420s and the 3808 from Sellam. On the restoration docket, now
with a better chance thanks to the ALDs which I recently got from Gabriel
himself. I scanned my 3420 ALDs and gave them to Gabriel in return. Biggest
annoyance, besides humongous size and weight, is the amount of 3 pha
My LaserJet 6MP is still going strong and is my main lab printer. I like it for
retro work because it has AppleTalk capability. I plugged my Mac SE into the
network and it automagically found it! Meanwhile Windows still doesn’t know
it’s there unless you put its nose right on it ;-)
Marc
> On A
Carl how big and heavy is it? I thought it was way bigger. I might take it.
Someone will have to help load/unload in the car due to my injured back...
Marc
> On Jul 4, 2021, at 10:29 AM, Carl Claunch via cctech
> wrote:
>
> I bought this years ago for a planned project to create a card reader
That must be Carl’s. He is lightening up his collection in anticipation of a
move. He has some great items. He just sold a fully functioning HP 1000F system
in two racks.
Marc
> On Jun 13, 2021, at 10:23 AM, Chuck Guzis via cctalk
> wrote:
>
>
> This fellow-s been posting on VCF; thus far,
Nice!
Marc
> On May 10, 2021, at 11:26 AM, Mattis Lind via cctalk
> wrote:
>
> Today I finally got the SPACEWAR version for PDP-11/10 running again on my
> PDP-11/05 with AR11 board. I played a couple of rounds together with my
> daughter. She was better than me. Quite hard game IMHO.
>
> ht
The IBM 7090 used a motor generator, IBM model 7618 apparently
http://ed-thelen.org/comp-hist/7090-PowerSupplyControl&Distribution-223-6904.pdf
Marc
> On May 4, 2021, at 5:03 PM, Jon Elson via cctalk
> wrote:
>
> On 05/04/2021 06:06 PM, Donald via cctalk wrote:
>> In the deep recesses of my mi
Quite impressive indeed! I did not know of these machines.
Marc
> On May 3, 2021, at 12:02 PM, Adrian Stoness via cctech
> wrote:
>
> ooo thanks for sharing
>
>> On Mon, May 3, 2021 at 1:50 PM Dr. Erik Baigar via cctech <
>> cct...@classiccmp.org> wrote:
>>
>>
>> Some additional remarks: Th
I tired several methods which worked to some extent (afore mentioned silicone
tubes, shrink wrap, eBay bought molded rubber overwraps, machined grooves and
add O-rings), but now I just strip my capstans clean and coat them with
plasti-dip. Methods in shown my various videos (like here
https://
Bill,
Misprinted characters could also come from a shoe not set properly on a rail,
or the print head needing oiling. I had both problems on mine. I think it’s
this video here https://youtu.be/x_Di7KpHubc . You need to remove the carriage,
which can be done without removing the printer.
Also t
I’ll blame it on Kyle and Fritz, I could not resist…
https://curiousmarcs-store.creator-spring.com/listing/VAXinated
Marc
On Wed, Mar 24, 2021, 17:50 Fritz Mueller via cctalk
wrote:
https://www.computerhistory.org/collections/catalog/102682110
Timely!
--FritzM.
Can’t see the web page, it’s blocked. But yes, I could definitely use an
alignment taoe.
Marc
> On Mar 30, 2021, at 4:02 AM, Jos Dreesen via cctalk
> wrote:
>
>
>
> Does this head alignment tape need saving ?
>
>
> https://www.tutti.ch/de/vi/zuerich/computer-zubehoer/komponenten-zubehoer/
I can ask Jean-Louis Gassée if that helps. Let me know if you want me to try.
Marc
> On Feb 7, 2021, at 5:14 PM, Cameron Kaiser via cctalk
> wrote:
>
> I know it exists, or existed, as there are references all over to it from
> the skeletal remains of various BeWare mirrors. However, the packa
We have had this guy harassing the Computer History Museum, then all
unsuspecting restorers under the false pretense of doing computer materials
history research. In the end we understood he was trying to find out if
asbestos was used in the machinery or buildings that were used to make the IBM
The LCM had a beautiful one in pretty advanced phases of restoration. They had
replaced the supplies with modern ones. It’s pretty spectacular steampunk
machine!
Marc
> On Jan 6, 2021, at 1:13 PM, Mike Loewen via cctalk
> wrote:
>
> On Wed, 6 Jan 2021, Van Snyder via cctalk wrote:
>
>>> I
For these interested on how it looked, I posted a picture of all the characters
created by the HP 2641 APL ROM dumps here:
https://www.curiousmarc.com/computing/hp-264x-terminals (somewhere down in the
middle of the page). ROM dumps were from Al Kossow I believe (thanks Al).
Marc
> On Dec 14,
Bravo!
Marc
> On Sep 27, 2020, at 2:22 PM, Gavin Scott via cctalk
> wrote:
>
> As some people here are aware, I have spent probably too much time this
> summer
> hacking on J. David Bryan's excellent Classic HP 3000 simulator and trying to
> build up the ultimate classic 1980s HP 3000 system
Awesome!
Marc
Reply-To: "Mattis com>" , "cctalk@classiccmp.org"
I have been working on a project for some time to connect a IBM3270
compatible Alfaskop terminal with its IBM 3274 compatible cluster
controller to the Hercules mainframe emulator.
Yesterday I eventually succeeded. I
We had the same problem. It’s a DE-19 connector, fits in the same envelope has
a DB-9, but 3 rows instead of 2. You can see in this video right around here:
https://youtu.be/GMp5EAq-Elo?t=541 . ITT-canon used to make these. You can
look them up on eBay, which is where we found ours. Make sure y
Thanks a lot. Anyone wants me to dump the DS/1000 rev 1826 ROMs or are these
already available?
What’s the CBL ROM? The one that’s on the cable interface card?
Marc
From: cctech on behalf of
"cct...@classiccmp.org"
Reply-To: "J. Bryan" , "cct...@classiccmp.org"
Date: Monday, June 29, 20
>>> Peter Coghlan wrote:
>>> Does anyone use ASCII anymore?
>>
>> I read and write my email with Emacs running in a terminal emulator.
>> I rarely need anything beoynd codepoint 126.
>
> I vote we move the list to an Exchange server behind a SSL VPN and mandate
> the use of Outlook, then forc
> The one thing I would change here is removal of the restriction on
> attachments.
> Well, two things.. Getting rid of the cctalk/cctech split as well.
Amen on that. The first one in particular. As simple as that and you’ve gotten
yourself a very functional yet efficient system.
Marc
Nice work.
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
Reply-To: Liam Proven , "cctalk@classiccmp.org"
Date: Friday, May 29, 2020 at 9:02 AM
To: "cctalk@classiccmp.org"
Subject: Building an IBM 3270 terminal controller
https://ajk.me/building-an-ibm-3270-terminal-controlle
Thanks!
Marc
> On May 2, 2020, at 4:49 AM, David Collins via cctech
> wrote:
>
> I've pulled together details of the controller used with an HP2748 paper
> tape reader to dump a bunch of tapes from the HP Computer Museum's collection
> with the help of J. David Bryan.
>
> The details are at
Would love to see it, I have such a machine in the queue for restoration.
Marc
> On Apr 30, 2020, at 5:49 AM, Tony Duell via cctalk
> wrote:
>
> From time to time there are posts here about the Facit N4000 paper
> tape punch/reader unit. The one that looks like a Facit 4070 with a
> tape reade
Agreed. They sure are pressed in, then riveted in for good measure. You’d have
to drill them out first. Not an easy modification.
Marc
> On Apr 30, 2020, at 2:18 PM, Al Kossow via cctalk
> wrote:
>
> On 4/29/20 10:01 PM, Curious Marc via cctalk wrote:
>> Or replacing t
I see the tape sticking to posts syndrome in my limited experience with HP QIC
tapes also (DC100 / DC2000). The best I have come up with is wipe the posts
with isopropanol. But I had not thought of lubricating them for a 1 time read,
interesting idea. Or replacing the posts with ones machined fr
Adrian
Congrats on your panel! It is very impressive!
On the Russian resistors I saw, the value was what is written on it. If you
can’t measure them, maybe there is some conformal coating or corrosion on the
leads? You’d need to scratch that off.
For the lamps, it might be time to invest in a var
Yeah, a 360/50. When all the tapes are organized and color matched to the
computer, you know it’s just a photo-op of a fake data center, or at best a
real one with many hours of preparation for a beauty shot. Nice picture though!
Marc
> On Mar 3, 2020, at 8:13 PM, Zane Healy via cctalk
> wrote
Congrats!
Marc
> On Feb 26, 2020, at 1:57 PM, Bob Rosenbloom via cctalk
> wrote:
>
> On 2/26/2020 1:47 PM, Al Kossow via cctalk wrote:
>>
>>> On 2/26/20 11:56 AM, jos via cctalk wrote:
>>> On 26.02.20 20:43, Al Kossow via cctalk wrote:
https://www.ebay.com/itm/TEKTRONIX-Model-4054A-ALL-I
Anders,
I got the schematics of the driver circuitry from the HP 59304A documentation.
You should be able to replicate it. Will send you in separate email.
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
Reply-To: Anders Nelson , "cctalk@classiccmp.org"
Date: Wednesday, January 1
The HP 59304A numeric display unit uses similar technology displays and has the
complete schematics available (at least I have them somewhere). Also you can
buy from Artek media:
https://www.ebay.com/c/1718687526
Maybe you can inspire yourself from that.
Marc
> On Jan 1, 2020, at 11:42 PM, Ander
Did not find it either, but if your tape has SCSI I used Overland Data’s Depot4
instead. Google it up, I uploaded it on archives.org.
Marc
> On Dec 13, 2019, at 10:12 AM, Ali via cctalk wrote:
>
> Hello,
>
> Can anyone please point me towards a copy of the Tapestar utility package
> for DOS? I
Tried the discord, and enjoyed it much more than I would have expected! It was
nice to talk with members in real time and share pictures of new acquisitions,
current projects, and also talk about where everybody lives.
Marc
> On Nov 15, 2019, at 9:31 AM, jwest--- via cctalk
> wrote:
>
> I be
I also responded off line. They did scan a doc for me in the recent past.
Marc
> On Nov 2, 2019, at 9:04 AM, Dave Wade via cctalk
> wrote:
>
> I will answer Al offline
>
> Dave
>
>> -Original Message-
>> From: cctalk On Behalf Of Al Kossow via
>> cctalk
>> Sent: 01 November 2019 22:3
I found Brent Hilpert’s site most useful in getting a quick meaning for these
numbers:
http://madrona.ca/e/HP21xx/index.html
http://madrona.ca/e/HP21xx/iointerfaces.html
There is also a very useful series 1000 reference manual that lists most of the
configs and options and cards, I will get to it
Good eye. It’s an HP 2116B. In the queue for restoration. We were starting to
work on it, then the AGC opportunity came along...
Marc
> On Jul 13, 2019, at 4:10 PM, Guy Dunphy via cctalk
> wrote:
>
> At 01:48 PM 13/07/2019 -0700, you wrote:
>> Another of the un-acknowledged people in the upcom
Thanks, I’ll see if I can find replacements. You can easily see how they get
zapped: they are 2.5V chips, the NiCd battery *is* the voltage regulator.
Charging circuit is a simple diode connected to 5V via a resistor. Battery
dies, goes high impedance, somebody plugs it in to try it out and poof
It’s hard to find documentation for the ground test equipment apparently. The
flyable hardware is very well documented, and Mike Stewart and co. are in the
process of scanning it all at NARA. I can glean a few things from the markings
on your picture. The PSA, or Power and Servo Assembly, had al
I do not think this is correct. The IRIG almost certainly refers to the Apollo
Inertial Reference Integrating Gyro, which you can see in this video along with
one of the PSA trays Adrian’s contraption is supposed to be testing:
https://youtu.be/lXe2OS4nwnQ
BTW I got my Apollo IRIG at the same a
Nomarski microscopy, Ed. Differential phase contrast microscopy. Makes very
small height differences (partial wavelength) on mostly planar objects pop out,
and creates amazing color effects as a biproduct. Pretty much a stalwart of any
good cleanroom microscope. Every manufacturer offers it, usu
Fantastic. It fell into the right hands.
Marc
And so the story continues
https://ibms360.co.uk/
These are sturdy and notoriously expensive aerospace grade 38999 connectors. We
had to slightly machine modern 38999’s male plugs to fit in these, but by in
large it still fits the modern standard. I have one of the PSA trays it
connects to, trying to make it work again! Nice and noble hardware
Nice beastie.
Marc
> On Apr 22, 2019, at 11:34 AM, ED SHARPE via cctalk
> wrote:
>
> Thanks Al yes, that is the one.
>
> and as I recall ISS was a offshoot on univac?In a message dated
> 4/22/2019 11:21:50 AM US Mountain Standard Time, cctalk@classiccmp.org writes:
>
>
>>
I believe 3 wire memory was first introduced by IBM in their 360 systems, and
it was a very large development effort. They would almost certainly have
patented their way to do it, but I have not checked.
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
Reply-To: Jon Elson , "cctalk@
Great! As Will says, this acquisition price is a small part of what it costs to
move, install and repair the system, so they got a very reasonable deal. Can
you at least tell us if it is coming stateside, or is it staying in Europe?
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
R
Any appetite at the CHM?
Marc
> On Apr 6, 2019, at 1:09 PM, Al Kossow via cctalk
> wrote:
>
> Hopefully LCM can go after this to flesh out their peripherals
> It looks like a nice set of disks and tapes, hopefully the 360-era
> disk and tape channel controllers are there too
>
>> On 4/6/19 7:0
As Paul said. ALDs are schematics down to the gate level basically. Necessary
to make a gate exact emulation, or debug and maintain a real machine. Used to
be sent with each and every machine, but sadly not often preserved apparently.
Fortunately our IBM 1401’s came with their ALDs. We refer to
Yes, that would be Carl’s “day to day” blog (http://rescue1130.blogspot.com/).
He is also on the list, lurking in the background. Carl, are you there?
Ken Shirriff has also several deeply researched blog articles on specific AGC
topics (righto.com).
Mike has some very interesting posts on his AGC
Which brings us to the real problem: we don’t have 360 Model 50 ALDs. Anyone
has them?
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
Reply-To: Jon Elson , "cctalk@classiccmp.org"
Date: Friday, March 29, 2019 at 8:45 AM
To: Ken Shirriff , ,
"cctalk@classiccmp.org"
Subject: Re:
Excellent write up Brent. We’ll refer to it when/if we get our 2116 going!
Marc
> On Feb 24, 2019, at 10:18 AM, Brent Hilpert via cctalk
> wrote:
>
>> On 2019-Feb-24, at 2:03 AM, GerardCJAT via cctalk wrote:
>>
>> Back in ''70, sometimes we were running "basic" BASIC ( NOT Time sharing )
>> o
Christian,
This I don’t know. You should join the hp 80 group on groups.io and ask there:
https://groups.io/g/hpseries80
Some of the original engineers for the 85 are on there, they know every detail,
and are incredibly helpful.
Marc
> On Feb 26, 2019, at 12:40 AM, Christian Corti via cctalk
>
The way I have been doing it is to copy the tape files to a LIF floppy disk
file (real or just emulated with HPDRIVE), then archive that - either just the
HPDRIVE file or a ImageDisk archive of the real disk.
Recreating the tape is the inverse process of copying the virtual or real disk
to the
Just wow. Congrats Josh.
Marc
> On Jan 19, 2019, at 9:09 PM, Scott Kevill via cctalk
> wrote:
>
> Josh didn't mention this, and I didn't see it linked on the GitHub repo, but
> he's also written a fantastic intro article about it here:
>
> https://engblg.livingcomputers.org/index.php/2019/01/
Interconnects at 28Gb/s/lane have been out for a while now, supported by quite
a few chips. 56Gb/s PAM4 is around the corner, and we run 100Gb/s in the lab
right now. Just sayin’ ;-). That said, we throw in about every equalization
trick we know of, PCB materials are getting quite exotic and con
We don’t know yet. Looks like a very difficult repair.
Marc
> On Dec 29, 2018, at 7:25 PM, Adrian Stoness wrote:
>
> think that core pack will ever live again?
>
> On Dec 29, 2018, at 6:00 AM, Brent Hilpert via cctalk
> wrote:
>
>> On 2018-Dec-28, at 4:43 PM, Adrian Stoness via cctalk wrote:
>> have u seen the agc being fired up videos
>
>
> Yes, videos from list member curiousMarc :
>Episode 1: https://www.youtube.com/watch?v=2KSahAoOLdU
>
>
Interested in the Arduino interface too. Will save me some time. Has it been
posted anywhere?
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
Reply-To: Ethan Dicks , "cctalk@classiccmp.org"
Date: Monday, December 10, 2018 at 7:21 AM
To: "cctalk@classiccmp.org"
Subject: Re: Documa
Fantastic video and work! The immense boards and 3D molecular software are very
impressive!
Marc
> On Nov 25, 2018, at 6:42 AM, Camiel Vanderhoeven via cctech
> wrote:
>
> Now that my mousepad problem has been solved, and I have a fully working
> Ardent Titan with some interesting software on
The Noodle Snatcher! We have one of these in the CHM collection.
Marc
From: cctech on behalf of
"cct...@classiccmp.org"
Reply-To: Peter Van Peborgh , "cct...@classiccmp.org"
Date: Tuesday, November 20, 2018 at 2:14 PM
To: "cct...@classiccmp.org"
Subject: A weird and ancient IBM offline
I like this idea, thanks for sharing. I might do the same for my HP 264x
screens.
Marc
From: cctech on behalf of
"cct...@classiccmp.org"
Reply-To: Michael Thompson ,
"cct...@classiccmp.org"
Date: Tuesday, November 20, 2018 at 5:59 PM
To: "cct...@classiccmp.org"
Subject: Re: Removing PVA
But the HDSP 2010 have only 12 pins. I think his are 28 pins, hence the HDSP
2450 suggestion, the closest I could find working off my 1986 catalog.
Marc
From: cctalk on behalf of
"cctalk@classiccmp.org"
Reply-To: Al Kossow , "cctalk@classiccmp.org"
Date: Wednesday, November 21, 2018 at 1
Try to look up HDSP-2450. These are 5x7 alphanumeric displays with shift
register drivers included. Yours might be an earlier version of that, or just a
commercial temp version of that (the HDSPs are extended temp -55/85C). Maybe
the internal part used in the HP9825 or HP 9830 displays, then la
That’s a great one! Best summary of this thread so far. Thanks for sharing.
Marc
> On Oct 28, 2018, at 10:36 AM, Jeffrey S. Worley via cctalk
> wrote:
>
> This was circulating in 1995/6. IBM had been shipping the very good
> OS/2 for some years and Microsoft was trying to catch up. Someone di
As they used to say, Windows95 = Mac 1984. Which is pushing it a bit but has
some truth in it... Maybe Mac 1990. Curiously, the Xerox Alto has quite
advanced GUI and object oriented programming (including the smalltalk windowing
environment), but no desktop metaphor or icons that I have seen. I
> On Oct 17, 2018, at 12:22 PM, Chuck Guzis via cctalk
> wrote:
>
>> On 10/17/18 11:10 AM, Paul Koning via cctalk wrote:
>>
>> The 1/2 inch tape drives I'm familiar with incorporate such a device.
>> Typically it's a ceramic thing, so it looks like a small shiny white
>> rectangle near the h
Yay! Congrats Josh!
Marc
> On Oct 16, 2018, at 8:39 PM, Josh Dersch via cctalk
> wrote:
>
>> On Tue, Oct 16, 2018 at 11:19 AM Josh Dersch wrote:
>>
>> Thanks, all, for the responses! The way it measures out makes it look
>> like it may be an MJ10006 or similar. I think it's probably ok.
>>
Forgot to mention, I have a 2382A that works (affectionately known as the
"Munchkin" terminal). I could measure some stuff in mine for comparison if that
could help out.
For the HP curious, the 2382A makes an appearance at the end of one of my
videos:
https://youtu.be/GLkhcDAOVPo?t=19m50
It is
Can't find it either in any of the X-ref lists I have. As you know already,
1854 are usually NPN transistors, but around these numbers I see mostly
Darlingtons in my collection. So maybe that's what you have, and why the
junctions would test weird.
Marc
> On Oct 15, 2018, at 10:21 PM, Josh Ders
Wow. Beautiful nixie counter, and 10MHz with tubes to boot! Impressive. The
kind of stuff that made HP famous.
Marc
> On Sep 3, 2018, at 12:34 PM, Brent Hilpert via cctalk
> wrote:
>
>> On 2018-Sep-03, at 8:39 AM, jos via cctalk wrote:
>> the following late fifties HP equipment is available in
It's an HP-IB controlled data acquisition box for large real time industrial
test or automation control installations. Very specialized. Think measuring or
outputting 100's of analog signals in real time. Most likely meant to be
connected to a HP 1000 series computer running the RTE real time op
Ah, excellent, groups.io is so much better.
Marc
> On Aug 17, 2018, at 3:14 PM, Toby Thain via cctalk
> wrote:
>
>> On 2018-08-17 12:40 AM, Curious Marc via cctalk wrote:
>> +1 on the hp_agilent Yahoo group
>
>
> Which at this very moment is MOVING to groups.io
+1 on the hp_agilent Yahoo group
Marc
> On Aug 14, 2018, at 10:22 PM, Paul Birkel via cctalk
> wrote:
>
> Try: hp_agilent_equipm...@yahoogroups.com
>
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Charles
> Dickman via cctalk
> Sent: Tuesday, A
And so does the HP 85.
Marc
> On Jul 17, 2018, at 1:50 PM, Brent Hilpert via cctalk
> wrote:
>
> The HP9830 (1972) with it's ROM'ed BASIC works this way.
> LIST produces a 'cleaned up' version of the source code.
>
>
>
>> On 2018-Jul-17, at 1:21 PM, Guy Sotomayor Jr via cctalk wrote:
>>
>>
Woohoo! What a collection! And none of it junk! Well done. Let me guess:
staying in the US, East Coast, southern part? In any case, great that you found
an acquirer that could preserve your awesome collecting work. And thanks so
much for sharing the nice photos.
Marc
> On Jun 22, 2018, at 3:34
Wow. Impressive reverse engineering work. Congrats!
Marc
> On May 26, 2018, at 5:09 PM, Glen Slick via cctalk
> wrote:
>
>> On Fri, May 22, 2015 at 7:43 PM, Marc Verdiell
>> wrote:
>> This has probably been asked before, but does anyone have the software
>> package that came with the HP-IB/RS
I got it! Thanks Al, I had been looking for one of these for a while, but the
few ones that were available were at ridiculous prices. I wanted it mostly so I
can reverse engineer it and make more of them, and/or get some inspiration for
an FPGA based I/O board.
Marc
From: cctalk on behalf
That's the guy I got my 6130B from.
Marc
> On May 16, 2018, at 6:18 PM, Glen Slick via cctalk
> wrote:
>
> That seller has listed the 6130B and two 6131B a few times. Since
> those are in Seattle I should see if the seller allows local pickup as
> the listed shipping costs are higher than the
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