[cctalk] Re: New VCF Video bumper

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,

[cctalk] Re: Diablo Model 40 Series - Disturbed head positioning

eads, and a dead amplifier transistor on the > heat sink board dedicated to the plus/minus (forward/reverse) servo > positioner, who knows ? > > Dominique > > >> On 2/05/2024 01:38, Curious Marc wrote: >> Power supply problem? >> Marc >> >>>> O

[cctalk] Re: Diablo Model 40 Series - Disturbed head positioning

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

[cctalk] Re: Datapoint 2200 simulator - looking for more software.

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

[cctalk] Re: Soviet tube/transistor/IC spec source

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

[cctalk] Re: Logic Analyzers - HP/Agilent 16700B or 1670G?

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] Re: IBM 1410 FPGA Status

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

[cctalk] Re: VCF Southwest 2023 some highlights

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

[cctalk] Re: Visiting the computer history museum (chm)

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

Re: Unsubscribed from the list due to too many bounces

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

Unsubscribed from the list due to too many bounces

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

Re: Bob Lucky

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 >

Re: Core memory

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

Re: HP 9915A failed 8048

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.

Re: simulation of an entire IBM S/360 Model 50 mainframe

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

Re: Siemens T100 Terminal with Paper Tape - Available

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:

Re: Overclocked TI Silent 703 at 1200 bauds?

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

Re: Overclocked TI Silent 703 at 1200 bauds?

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 >

Re: Overclocked TI Silent 703 at 1200 bauds?

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

Re: Terminal Emulator

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

Re: Looking for an IBM 3803

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

Re: Looking for an IBM 3803

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

Re: Looking for an IBM 3803

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

Re: ISO Laserjet I/II/III firmware

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

Re: Free punched card deck machine, suitable to make reader and punch

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

Re: Disk drives, keypunch offered in SF bay area:

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,

Re: PDP-11 SPACEWAR running again!

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. > >

Re: Motor generator

The IBM 7090 used a motor generator, IBM model 7618 apparently http://ed-thelen.org/comp-hist/7090-PowerSupplyControl 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 mind I seem to remember

Re: 920M - an European contemprary of the Apollo Guidance Computer

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:

Re: hp 9145 capstan replacement

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

Re: Looking for video (or photos) depicting how to remove ASR 33 printer from keyboard

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

Re: DEC pin

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.

Re: head alignment tape

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 ? > > >

Re: looking for egcs for PowerPC BeOS R4

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

Re: UNIVAC

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

Re: Bendix G-15 and Control Data 160 console on ebay

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

Re: tty and video displays

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,

Re: HP 3000, APL\3000, the HP 2641A APL Display Station, and stuff.

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

Re: IBM 3270 compatible terminal connected to Hercules IBM mainframe emulator.

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

Re: Alto II keyset connector plug identification

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

Re: Hp 21mx loader rom set

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,

Re: Future of cctalk/cctech - text encoding

>>> 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

Re: Future of cctalk/cctech

> 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

Re: Building an IBM 3270 terminal controller

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

Re: Wanted, Papertape Reader for Archiving Tapes

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

Re: Facit N4000 Schematic

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

Re: tape baking

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

Re: tape baking

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

Re: soviet resistor identification help and maybe lamps?

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

Re: Good picture of a S360.

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 >

Re: 4054 in Sacramento

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:

Re: Sperry SP-425-08 Display - Datasheet?

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

Re: Tapestar for DOS

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?

Re: Discord

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

Re: Best email to reach a human at the centre for computing history (computinghistory.org.uk)

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

Re: Identification of an HP minicomputer

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

Re: Margaret Hamilton Guardian interview.

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

Re: HP98035 Real Time clock and AC5954N clock chip

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

Re: apollo psa test point adaptor

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

Re: apollo psa test point adaptor

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

Re: HP-01 calc watch go withs - brochures, t- shirts, booklets, ad copy who else collecting?

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,

Re: Pleas ID this IBM system....

Fantastic. It fell into the right hands. Marc And so the story continues https://ibms360.co.uk/

Re: apollo psa test point adaptor

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

Re: Telex 20 Meg 10 platter very heavy monster drive needed drop line off list..r

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: > > >>

Re: Plane of core memory

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 ,

Re: Pleas ID this IBM system....

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"

Re: Pleas ID this IBM system....

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

Re: Model 40 Re: IBM 360 Model 50 information?

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

Re: AGC restoration / was Re: PDP-8 signed overflow detection - Apollo guidace computer

>> is the backstory on the AGC; about 1/3 of the way down, in "Restoring an >> Apollo Guidance Computer, part V". > > > > This is the same AGC restoration that curious marc has been making videos > about: > >https://www.youtube.com/watch?v=2K

Re: IBM 360 Model 50 information?

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:

Re: BASIC for HP 1000, 21xx series

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 ) >>

Re: HP 85 tapes

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 >

Re: HP 85 tapes

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

Re: Xerox Star emulator (Darkstar) released today

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: > >

Re: OT? Upper limits of FSB

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

Re: Original AGC restoration / was Re: Apollo 8 Mission Control printers, or not?

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? >

Re: Original AGC restoration / was Re: Apollo 8 Mission Control printers, or not?

> 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 > >

Re: Documation card readers for sale

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:

Re: Working Ardent Titan on Youtube

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

Re: A weird and ancient IBM offline memory device

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

Re: Removing PVA from a CRT

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

Re: Odd Hp leds in dip package

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

Re: Odd Hp leds in dip package

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

Re: The DosFish (object oriented GUIS)

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

Re: Desktop Metaphor

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

Re: Identifying TO-3 w/HP house numbering

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. >>

Re: Identifying TO-3 w/HP house numbering

Po?t=19m50 It is very cute (I think) ;-) Marc > On Oct 16, 2018, at 12:08 AM, Curious Marc wrote: > > 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.

Re: Identifying TO-3 w/HP house numbering

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

Re: Some late fifties HP measurement equipment available. ( Switzerland )

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

Re: HP-2250 in Salt Lake City

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

Re: HP scope mailing list

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

Re: HP scope mailing list

+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,

Re: BASIC (Was: Reading HP2000 tapes

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: >> >>

Re: IBM junk

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

Re: Logic Analyzer software for the HP-IB/RS-232 bus pre-processor HP 10342B

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

Re: HP 2100 prototyping card

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

Re: 6130B

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

Re: Help on a 1998 Award BIOS chip

talk@classiccmp.org> Reply-To: geneb <ge...@deltasoft.com>, "cctalk@classiccmp.org" <cctalk@classiccmp.org> Date: Tuesday, April 17, 2018 at 7:09 AM To: "cctalk@classiccmp.org" <cctalk@classiccmp.org> Subject: Re: Help on a 1998 Award BIOS chip On Mon, 16

Re: Help on a 1998 Award BIOS chip

> On Apr 16, 2018, at 6:31 PM, Chuck Guzis via cctalk > wrote: > >> On 04/16/2018 06:11 PM, CuriousMarc via cctalk wrote: >> And lifting the sticker reveals the BIOS chip is just a W29C020P-12, a >> regular 256k x 8 Flash memory, 5V chip. Duh. Mystery solved. Of course

Re: Help on a 1998 Award BIOS chip

Glen, I think I wasn't thinking straight late last night when I finally found the chip was bad... I usually don't work on stuff that "new", so I was unfamiliar with the PLCC 32 format and have nothing to program it. I bet the reference of what chip it is hides just under the label! Assuming

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