Re: Apple 1, Commodore 65, Enigma Machine, Inventor of C++

On Tue, 28 Mar 2017, Evan Koblentz wrote: "What do an Apple 1, Commodore 65, Enigma Machine, and the inventor of C++ all have in common?" They're just overestimated pieces of junk ;-) (and C++, not its inventor) [duck...] Christian

Re: QIX game on PDP-11

On Tue, 28 Mar 2017, Systems Glitch wrote: Looks similar to a Mentec KDJ11-B workalike, I don't remember their designation. Onboard RAM and DLV11-J from what I remember... The board says SBC J11-8, so that should give a hint. Christian

Re: Univac I memory tank

On Wed, 15 Mar 2017, dwight wrote: The Olivetti used a piece of wire for the delay line. I forget what the Dielh Combitron used but I know it used a two delay lines. One was for registers and the other was for lookup tables that loaded at turn on time from a metal tape ( as I recall ). I can

Re: Looking for windows 1.x for HP-150 touchscreen Also looking for Touchscreen II

On Mon, 20 Mar 2017, Ed wrote: Looking for windows 1.x for HP-150 touchscreen Also looking for Look at the obvious hpmuseum.net site, it's there. Christian

Another unknown frontpanel

Hi, I have another frontpanel, this one is from Plessey Peripheral Systems and must come from a 16 bit system. It's only the board with LEDs and switches. Does anyone know the system this panel comes from? http://computermuseum.informatik.uni-stuttgart.de/pics/temp/plessey_fp.jpg Christian

Re: OT: PCI Ethernet or USB 2.0 ethernet?

On Sat, 1 Apr 2017, Peter Corlett wrote: Both USB 2.0 and PCI are orders of magnitude faster than real-world wifi. Even ISA will give wifi a run for its money. I recommend you not bother with wifi if you care about network performance. No, USB 2.0 is way too slow for 802.11ac that outperforms

Re: I hate the new mail system

On Fri, 3 Mar 2017, Jules Richardson wrote: Thanks to both of you. I came back to cctalk after not checking it for a few days, and wondered what the %$#^ was going on, with every message showing with cctalk as the "from" field. I'm another one who dislikes the new system. It would be much

Re: I hate the new mail system

On Thu, 9 Mar 2017, Tor Arntsen wrote: I did an strace and I can confirm that the Linux 'whois' client that I used from those various sites sends '-T dn' (or actually -T dn,ace) write(3, "-T dn,ace uni-stuttgart.de\r\n", 28) = 28 I can't see where this whois originates from, it has version

Re: I hate the new mail system

On Mon, 6 Mar 2017, Mouse wrote: Only if you don't bother editing it down to whichever address you want to reply to (as I did for this message). If your user agent doesn't let you do that, well, your choice of a crippled user agent (and an inability to edit the list of recipients is a pretty

Re: I hate the new mail system

On Mon, 6 Mar 2017, Mouse wrote: Yes, and it must not be in the Reply-To: field because in normal cases, this field is the one used for replying, and I want to reply to the list, and only to the list. ...that's sure what this sounds like. If so, I have little sympathy for your position. So

Re: I hate the new mail system

On Mon, 6 Mar 2017, Mouse wrote: [...] And BTW, what you are doing is not clever at all: mo...@rodents-montreal.org SMTP error from remote mail server after initial connection: host MX-4.rodents-montreal.org [98.124.61.89]: 550-.de's whois server, whois.denic.de, is completely

Re: I hate the new mail system

On Tue, 7 Mar 2017, Pete Turnbull wrote: No, Mouse is right, it's broken: Works for me (also from different networks outside the university network): # whois uni-stuttgart.de % Copyright (c) 2010 by DENIC % Version: 2.0 % % Restricted rights. % % Terms and Conditions of Use % % The data in

Re: I hate the new mail system

On Sat, 4 Mar 2017, Alfred M. Szmidt wrote: The whole "foo via cctalk" is *really* annoying... What is wrong with a half default mailman setup? There is no Reply-To header there, From is set to the person actually sending the message (as it should be). Yes, that is most annoying. My

Re: Supercomputers, fishing for information

On Mon, 3 Apr 2017, Chuck Guzis wrote: I'm probably showing my age (again), but "QIC" and "Supercomputers" just seems to be about as related as "Chateau Margaux" and "Cheez Whiz". If one is spending millions on a supercomputer, why would anyone want to put software for it on a QIC cart? Well,

Re: Remex Tape Reader - Pre-power up advice?

On Mon, 17 Apr 2017, Rod Smallwood wrote: There are what appear to be 1976 date codes on some caps. If its that old then replace all and any electrolytic capacitors plus any paper based caps. If they aint bad now they soon will be. *shaking head* Sorry, this is just a plain dumb answer.

bitsavers rsync server down

Hi, for those who wonder why our mirror at bitsavers.informatik.uni-stuttgart.de is outdated: The reason is that the main rsync server is down/unavailable since March, 11. I've already contacted Al several days ago but haven't got any response yet. Christian

Re: Cleaning a board slightly oxydized ??

On Sun, 30 Jul 2017, Alexandre Souza wrote: Light green? Was it battery electrolyte? Wash it with vinegar (yes, vinegar) and after, wash with a good detergent and warm water. No, *not* vinegar. Use citric acid. You don't want to force the formation of copper acetate. Christian

Re: Sperry UTS 40 on Ebay - Statesboro, Georgia

On Tue, 1 Aug 2017, Al Kossow wrote: They canceled my order as well, just after sending me a message wondering if I wanted the keyboard And this is not illegal in the US? It is here. Christian

Re: 2.11BSD on two RL02 drives? Probably not, but...

On Thu, 3 Aug 2017, emanuel stiebler wrote: On 2017-08-03 11:12, Al Kossow via cctalk wrote: It would be nice, though if someone just finished a MSCP controller with a CF or SD on it. I don't think there is enough demand for it. So to finish it would take some effort, and the boards wouldn't

Re: Disk imaging with IMD - question

On Thu, 10 Aug 2017, camiel.vanderhoeven--- via cctalk wrote: My workhorse 8" drives are some Ye-Data half-height ones. I still have about a dozen of them as NOS. I believe they were made in 1993. If you mean the Y-E DATA YD-180, well, they are QumeTrack 242 ;-) Christian

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Chuck Guzis wrote: I'll try again--it doesn't matter if the Qume 242 (I've got one) is a DSDD drive if you're using SS media. Peek inside the drive and you'll see that there are *two* index sensors--one for single-sided and the other for double-sided media. Unless you've

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Richard Cini wrote: Will do. These 242 drives are NOS and I have several. I'll swap them too. One more note about QumeTrack 242 drives: I have the problem that the head load is very sticky (on both of my drives). I had to clean and oil it to make it working again. But

Re: IBM 5110 - Where does the character set live? And other questions.

On Tue, 11 Jul 2017, Santo Nucifora wrote: I might have some better documentation that I just haven't had a chance to scan yet. [...] 5110 System Library Binder 1 SY31-0550-2 IBM 5110 Computer Maintenance Information Manual SY31-0551-0 IBM 5114 Diskette Unit Maintenance Information Manual

Re: IBM 5110 - Where does the character set live? And other questions.

On Tue, 11 Jul 2017, Robert wrote: So, faulty support logic, rather than a faulty ROS. That's encouraging. I hope this is also true in your case. According to your picture, the last column of each character is missing. It could be an issue around the shift register (e.g. the Display Data

Re: IBM 5110 - Where does the character set live? And other questions.

On Wed, 12 Jul 2017, Christian Corti wrote: The scans I made are quite old; I do have a much better scanner now so I could just rescan the manuals for better quality. Ok, I've added the 5114 MIM, and also added some pages of the System Logic Manual, including the Display Adapter and the 5114

Re: IBM 5110 - Where does the character set live? And other questions.

On Mon, 10 Jul 2017, Robert wrote: It's always the same characters that are mangled and it's independent of their position on the screen, so I suspect possible corruption in the character set, wherever in ROS or the display card it is held. The characters are stored on the display interface

Re: IBM 5110 - Where does the character set live? And other questions.

On Tue, 11 Jul 2017, Robert wrote: maintenance manual and that for the 5103. No luck on the 5114, yet, but I'll keep looking. Ok, I will scan that manual the next days. But in general the contents of the 5114 MIM is contained withing the 5120 MIM. Christian

NCR terminal

I have an NCR labelled ADDS 2020 terminal that emulates the NCR 7930 and 7901. Has anyone a manual for those NCR terminals that describes the control sequences? OTOH a firmware dump of the ANSI firmware for the 2020 would be fine, too. Christian

Diehl Combitron

Hi, I want to share the latest result of a bachelor thesis in our museum. We are now able to program and load arbitrary machine programs and run them on the Combitron. As a proof-of-concept, the student wrote an hommage to Stanley Frankel, the designer of the CPU, by writing a boot tape that

RE: tape baking

On Mon, 3 Jul 2017, Rob Jarratt wrote: All I could do was prop open the tape door with a paper clip. 45C in my fan oven worked for me. 55C in my oven seemed to mostly demagnetise the tape. Other ovens may be different, so it is best to experiment with something that doesn't matter. You can

Re: 2.11BSD on two RL02 drives? Probably not, but...

On Fri, 4 Aug 2017, Guy Sotomayor Jr wrote: Unfortunately PATA drives are becoming difficult to find and designing a SATA interface (not to mention layout issues) is not for the faint of heart. That's why I suggest using dirt cheap external PATA<-->SATA bridges. Christian

Re: IBM 5280

On Fri, 4 Aug 2017, Sam O'nella wrote: What are the 4 games? SPIEL1: Vier in einer Reihe SPIEL2: Lebenserwartung SPIEL3: Roulette SPIEL4: Kopfnuss (Superhirn) Christian

Re: ftp.compaq.com mirror

On Tue, 8 Aug 2017, Adrian Graham wrote: of the whole ftp site but it?s 220gb and I?m not sure my little 150mb/s web connection will download that in less than a month :) You should think about the proper usage of units... If "gb" is gigabytes, then "mb" is megabytes. With a 150 megabytes/s

Re: Sperry UTS 40 on Ebay - Statesboro, Georgia

On Wed, 2 Aug 2017, jim stephens wrote: Legal / illegal and ebay in the same sentence doesn't make sense. They only want to make money, and don't care about either sellers or buyers. Thanks god that I am not in the US, because here, even eBay has to follow local legislation. Or in other

Re: WTB: RX02 Floppy Disks

On Wed, 2 Aug 2017, Al Kossow wrote: There is no way to low-level format disks on a DEC RX01 or RX02. The hardware doesn't support it in the controller inside the DEC disk drive. DEC expected you to buy media from them. Not really. You can use any standard 3740 formatted disk (i.e. 26

IBM 5280

So, we've got an IBM 5285 (5280 series) programmable data station. This is a *heavy* and nice beast ;-) Its architecture is a bit unusual but interesting. Problem is, I don't have any software for it expect one disk that IPLs and that contains four more or less crappy games. (can be found at

Re: 2.11BSD on two RL02 drives? Probably not, but...

On Fri, 4 Aug 2017, Al Kossow wrote: Can you actually buy SATA PHYs in small quantities now or even SATA to PATA bridges? I would go for a cheap external bridge, something like this: https://www.amazon.com/dp/B008X8NK0I

Re: 2.11BSD on two RL02 drives? Probably not, but...

On Fri, 4 Aug 2017, Noel Chiappa wrote: But are SD cards really that unreliable? If they were, I'd have thought I'd Yes they are. Just have look around in the world of cameras and smartphones where people suffer from losing their photos just because an SD card decides to fail. I have several

Re: 2.11BSD on two RL02 drives? Probably not, but...

On Fri, 4 Aug 2017, Paul Koning wrote: On Aug 4, 2017, at 4:14 AM, Christian Corti via cctalk <cctalk@classiccmp.org> wrote: I don't like the idea of CF or SD at all. I'd pretty much prefer PATA or SATA, because ... CF is PATA, just a different connector. If the board provides

Re: rectangular sense core vs. diagonal

On Wed, 7 Jun 2017, Paul Koning wrote: How is ECS constructed? I fooled with a lot of it back in the day, but never got a good look at the core planes. I'd love to know. I never saw the insides of ECS. There are some documents on Bitsavers but none that I have seen show the ECS memory

RE: BBS software for the PDP 11

On Thu, 18 May 2017, Bill Gunshannon wrote: would preclude this. I did it on a SYS III Xenix clone). BSD 2.11 should run fine on a 34 or 23 and there is always Ultrix-11 which I have No, it doesn't. 2.9BSD, yes, but not 2.11BSD as it requires split I/D and more than 128 kwords of memory.

Re: RL02 to image file

On Thu, 1 Jun 2017, Jay Jaeger wrote: On 6/1/2017 12:12 PM, Ethan Dicks wrote: On Thu, Jun 1, 2017 at 7:59 AM, Jay Jaeger via cctalk wrote: I can. I use a DR11 parallel port on an 11/24 to transfer the files. Interesting. I'd like to see how you tackled that (I can

Re: RC11 manuals / schematics online?

On Sun, 11 Jun 2017, Jay Jaeger wrote: Yes, I am doing the drawings at 600DPI, including the drawings that reside inside a couple of the maintenance manuals (but 400DPI for the text, etc.) Please do *everything* at 600dpi, disk space and file sizes for such documents don't matter these days,

Re: BBS software for the PDP 11

On Thu, 18 May 2017, Lyle Bickley wrote: I run BSD 2.9 on my 11/34C (w/max. mem.) & DZ using (2) RL02s with up to three TTY sessions. It's a bit "sluggish" (by today's standards). TSX I have a similar setup with our 11/34. 2.9BSD on one RL01 as root/swap, the rest (/usr etc.) on a RA80 (with

Re: Rainbow Disk Imager

On Thu, 14 Sep 2017, Warner Losh wrote: On Thu, Sep 14, 2017 at 4:05 PM, Fred Cisin wrote: On the IBM PC/AT (5170) with 1.2M, admittedly the only one that is easily readily available, there is trivial software tweaking required to format/write "720K"/"quad" density, instead

Re: HP 2108A key

On Thu, 21 Sep 2017, Sam O'nella wrote: Should be easy but my mobile google fu is failing. Didn't Jay and a few others know if a vintage computer key database/site somewhere? Would that possibly have or benefit from getting afterwards? null Ok, I went into our storage and made some pics:

Re: The origin of the phrases ATA and IDE [WAS:RE: formatting MFM drives on a IBM PC]

On Wed, 4 Oct 2017, Guy Sotomayor Jr wrote: Also, the early desktop PS/2 (model 50 and such) had the controller integrated on the drive and those were Maxtor as I recall. The PS/2 shipped in 1987 and we had the drives in labs at least 12-18 months prior (memory is dim on this right now).

Re: That Tek 405x QIC Tape.

On Tue, 3 Oct 2017, Al Kossow wrote: As far as I know, no one has successfully made a copy of a Tek cartridge tape in an image format. The tapes use two tracks, one for clock and one for data. Encoding beyond that has not been determined. I still have I can backup Tek405x tapes. Our 4051 has

Re: Diablo 31 air filters / plugs ?

On Sun, 8 Oct 2017, Tony Duell wrote: The Diablo positioner is strange. For one thing it is a permanent magnet motor and rack-and-pinion mechanism (!). But the important thing here is that the heads are loaded to the platter by a solenoid. Not by loading ramps like in an RK05. So even if the

Re: Bridge Communication Unibus Ethernet board?

On Wed, 30 Aug 2017, Mattis Lind wrote: [...] Does anyone have more info about this (dusty) board: [...] It says IECU. I wonder if that is some kind of product name? The copyright in the etch is 1984 but the chips are mostly from 1985 or 1986. Hmm, we have several Bridge CS/1 terminal

Re: Reviving ancient MFM drives (was Re: formatting MFM drives on a IBM PC)

On Thu, 28 Sep 2017, Geoffrey Oltmans wrote: Speaking of I've got a couple of old MFM drives (10 and 20 MB of a variety whose name and model #'s escape me, I wanna say Tandon, but not sure). They seem to work fine when I initially format and partition, but as they run for a while, they get

Re: formatting MFM drives on a IBM PC

On Thu, 28 Sep 2017, Chuck Guzis wrote: "Low level format" is pretty much a relic of the old non-servo MFM drives. I recall that early Maxtor IDE drives implemented a LLF Lowlevel formatting has to be done for *all* ST-506 interface drives (e.g. "MFM" and "RLL" drives). It is the disk

Re: DCC-116 E / DATA GENERAL NOVA 2/10 / Nixdorf 620 - Restoring and restarting

On Sat, 26 Aug 2017, Dominique Carlier wrote: I have temporarily replaced the 2N6471 by an approaching equivalent, I makes the settings to get very exactly + 5V on both outputs and the machine restarted, finally! YES !! :-) [...] then 02, 03 !! 04 !!! 05 !! And then ... nothing, and since

Re: formatting MFM drives on a IBM PC

On Tue, 26 Sep 2017, emanuel stiebler wrote: So, what is the best(?) or easiest piece of software, to format the drives, check for bad blocks, etc.? I like the "CMS Fixed Disk Diagnostics" very much, the file is FDIAG.COM It can be found here:

Re: Cloning A Hard Disk Over The Network Using Ultrix

On Sat, 21 Oct 2017, Rob Jarratt wrote: I have a couple of hard disks I want to make dd copies of. I have Ultrix running on my DECstation 5000/240 with the disk I want to clone attached to it. The trouble is that I don't have enough disk space on the machine to clone the disk and then grab the

Re: Pine (was: Re: cctalk Digest, Vol 17, Issue 20)

On Mon, 23 Oct 2017, Richard Loken wrote: By gum! Alpine does indeed translate the 'A' into a '?' and I never noticed. I'm using Alpine, too, and have no problems with the à or any other foreign character. I'm not even using UTF-8 but plain ISO-8859-1 in my terminal. But it's important to

Re: WTB: HP-85 16k RAM Module and HPIB Floppy Drive

On Tue, 14 Nov 2017, Mark J. Blair via cctalk wrote: No, the 9122C model has two 1.44M drives. HP made several earlier 3.5" No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive has no capacity, this is the function of the on-disk format. ;-) Christian

Re: tumble tiff to pdf converter

On Wed, 20 Dec 2017, jim stephens wrote: and the like that are included in the current system as installed, and there are problems now with the tumble_pbm.c code parameters (line 237 specifically). Huh? # wc -l tumble_pbm.c 231 tumble_pbm.c This is the last known version (part of tumble 0.33

Re: tumble tiff to pdf converter

On Wed, 20 Dec 2017, Christian Corti wrote: Huh? # wc -l tumble_pbm.c 231 tumble_pbm.c This is the last known version (part of tumble 0.33 from 2003): * $Id: tumble_pbm.c,v 1.1 2003/04/10 00:47:30 eric Exp $ Ok, I see, whoever changed tumble as found on github forgot to change all version

Re: Playing with HP2640B

On Thu, 16 Nov 2017, CuriousMarc wrote: What did you do for the screen mold? Hot wire method to separate CRT from implosion window? Put the CRT in a hot water bath? Chip at the glue? Marc What we did on one of our 2645 terminals was the hot wire method. We then attached the "implosion"

Re: Playing with HP2640B

On Fri, 17 Nov 2017, David Collins wrote: Christian do you know the gauge of the wire you used ? And the current? It was a wire for cutting polystyrene blocks. The current was a fews amperes, I think, driven off a bench power supply. Christian

Signetics TWIN

Hi, do hardware manuals for the TWIN exist? And does any other TWIN system exist? It seems it is a completely forgotten and lost development system. Christian

Re: Drive capacity names (Was: WTB: HP-85 16k RAM Module and HPIB Floppy Drive

On Wed, 15 Nov 2017, Fred Cisin wrote: On Wed, 15 Nov 2017, Christian Corti via cctalk wrote: No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive has no capacity, this is the function of the on-disk format. ;-) "high-density" is even more meaningless than

Re: HP 2640 character set generation manual in the UK

On Fri, 3 Nov 2017, CuriousMarc wrote: The link below is from the computer museum in Cambridge, UK, which seems to have a copy of an HP 2640 terminal manual I am looking for. Is anyone from that museum on the list? Does any of the UK members know them?

RE: HP 2640 character set generation manual in the UK

On Wed, 8 Nov 2017, CuriousMarc wrote: Awesome! The microcode listings would be fantastic too, as I also have a 2749 (which you are supposed to be able to program in assembly)! Let us know The firmware is already on bitsavers, IIRC. But you can program every 264x terminal in assembly. There

RE: HP 2640 character set generation manual in the UK

The manual has been scanned and is on our FTP server: ftp://computermuseum.informatik.uni-stuttgart.de/hp/hp2648/13245-90001_2640SeriesCharacterSetGeneration_Oct1975.pdf Enjoy :-) @Al: you may push it to bitsavers Christian

Re: HP 2640 character set generation manual in the UK

On Thu, 9 Nov 2017, Mattis Lind wrote: Very interesting! I have a 2640 which I recently refurbished the screen on and it runs happily and then a 2645 that still needs treatment for the screen rot. Is the binaries for pong and space invaders downloadable somewhere? I searched the usual places,

Re: Datasheet for Signetics spc16/10 ( Single chip Philips P800 processor ) ?

On Thu, 17 May 2018, jos wrote: ( this is not related to the General Automation SPC16 family) ... wherefore I still seek for print sets, software and so on ... Christian

Re: Unknown CDC unit , looks like a drum memory ?

On Wed, 16 May 2018, geneb wrote: On Wed, 16 May 2018, Ed Sharpe via cctalk wrote: OK  I  see there is a  mix  of  photos in this  directory! some  tape  reader  some  drum  2  separate  topics.   Ed, I don't know if you (or anyone else) can see this, but there's two junk characters at the

Re: VAX 4000 PSU (H7874) Schematics

On Thu, 7 Jun 2018, Aaron Jackson wrote: The VAX turns on and the status LED stays on F. The DC lamp does not illuminate on the PSU. 5V rail appears fine but there is nothing from the 12V rail. There were some *very* dodgy looking caps which I have replaced, and some *very* exploded MOSFETs,

Re: Whence 556?

On Sat, 2 Jun 2018, Chuck Guzis wrote: So 200 and 800 are nice decimal multiples of 10. But 556 doesn't fit that pattern--it's not a "nice' number, being the product of 4 and 139 and doesn't correspond to any computer-related characteristics that I know of. It's not metric. So why 556 and not

Re: Whence 556?

On Tue, 5 Jun 2018, Chuck Guzis wrote: And we're talking bits/chars per inch, so I don't see the connection, particularly on a 75 ips drive. Ehm, yes, I was thinking too fast and too simple... it's a hot day here. Christian

Re: Preserved LGP-30

On Mon, 2 Jul 2018, "j...@cimmeri.com" wrote: Seriously! Liam, don't you know that handling paper with your hands transfers oils to it and hastens its decay? This is why gloves are worn to handle old paper artifacts. *lol* Especially with oiled paper tape that is exposed to daylight and

Re: data cassette and robotic arms

On Wed, 10 Jan 2018, Chuck Guzis wrote: For a time, cassette decks were used as a substitute for punched paper tape in the commercial embroidery business They were supplanted by floppy drive boxes, eventually (e.g. Barudan). And paper tape is still used in that business (all kind of NC

Re: New TestFDC Results Registry

On Thu, 18 Jan 2018, Chuck Guzis wrote: I've had some decent results with P4 and Socket 939 motherboards but after that, not so much. I don't know if that's a bright-line rule, but it seems to hold with my gear. My quite current Socket AM3+ board with six-core CPU and 16GB of RAM (to be

Re: Adaptec 1522A SCSI Support (was re: New TestFDC Results Registry)

On Fri, 19 Jan 2018, TeoZ wrote: Didn?t early SUN gear have SCSI floppy drives? No, SUN always used standard floppy controllers. But HP and DEC used them, although it was not very common. The floppy drives are standard TEAC FD-235HF with an additional SCSI floppy controller board.

Re: Reviving ARPAnet

On Thu, 18 Jan 2018, Grant Taylor wrote: I'm wondering if it might be possible to use an old NetWare 4.x / 5.x box as a router to convert from one Ethernet frame type to another Ethernet frame type. I.e. from IP over Ethernet II frames to IP over 802.3 frames. Why do you want to convert

Re: Sun3 valuations?

On Mon, 22 Jan 2018, Al Kossow wrote: Not that anyone seems to collect printers, but the LBP1 and the Canon engine were some of the first 'inexpensive mass-produced' laser printers. I still have the Kyocera F-1010 that my father bought 30 years ago. It still works well, but the foam strips

Re: help id a chip

On Wed, 17 Jan 2018, william degnan wrote: Not sure, I have a bunch of items that need to be investigated including that one. http://vintagecomputer.net/pictures/2017/Objects/ b Well, two objects are obvious ;-) P1010070.JPG is the program drum for an IBM 29 card punch (and similar models)

Re: SOT - Ultimate Classic Computing Geekdom

... and this is the reason why the "new" list mail system that alters the headers and puts the private from address into the Reply-To header is crap. Christian On Sun, 14 Jan 2018, Lionel Johnson wrote: Date: Sun, 14 Jan 2018 09:48:05 +1100 From: Lionel Johnson

Re: Google, Wikipedia directly on ASCII terminal?

On Tue, 6 Feb 2018, Grant Taylor wrote: Watching Curious Marc's HP 264x Terminals - Part 3: Living the ASCII Life video made me think of this thread. Check out Marc's did video about 17 minutes into the video. The video shows Ken using the HP 264x terminal to run Lynx on a Linux box to

Re: Lisa Source Code

What is a "Lisa Source Code" ? The schematics? The source code for the Lisa firmware and/or Lisa OS? Christian

RQDX3 formatter

Where do you patch the ZRQCH0 binary to use different geometries for non-DEC drives with a RQDX3? As it seems it should be possible, but noone has told how to do this ;-) Christian

Re: Troubleshooting HP 2116B

On Sat, 28 Jul 2018, GerardCJAT wrote: Christian, I absolutly agree with David s post. Back in the ' '70 when I was maintaining 3 x HP 2116 B running 24/24 7/7 FOR around 10 YEARS, the ONLY memory related problem that I got was traced to a faulty transistor !! Then I have a new fault ;-)

Troubleshooting HP 2116B

Ok, so I've got the computer almost running now. I now need to fix both sense amplifier cards. One (0..4k) sometimes reads a one for bit 3 after the machine has warmed up. The other (4..8k) has a stuck one for bit 7. Swapping these cards make the errors move to the other core bank respectively.

Re: R: HP-2116 front panel lamps

On Wed, 25 Jul 2018, it was written I've buy these lamps from Oshino Lamps, the original supplier for a good price. Minimun quantity 100 pcs Speaking of Oshino Lamps, I had a phone call yesterday with their German branch after I had inquired them for a distributor; I saw the OL-345 on their

HP-2116 front panel lamps

Hi, I need to replace several broken lamps from our HP-2116B front panel. The old/original ones are CM-345 or OL-345. This makes sense, they are rated 6V 40mA 1 hours. BUT: The maintenance manual says something different and is even wrong and inconsistent. HP part number is 2140-0035,

RE: HP-2116 front panel lamps

On Wed, 25 Jul 2018, it was written Christian, when I was restoring the HP Computer Museum's 2116A I ordered a bunch of these 345 bulbs from 1000bulbs.com - but it seems they no longer stock them. I did find this listing though which looks current...

Re: HP-2116 front panel lamps

On Wed, 25 Jul 2018, GerardCJAT wrote: When I was "doing sort of " C.E. for 2116 ( 1971 _ 1981 ), we were using CM 380 as replacement. Even longer life !! Good info! Don't know how I could miss this one, it is even cheaper than the 345. I think I wanted to stick to the same type as the ones

Re: HP scope mailing list

On Sat, 18 Aug 2018, Curious Marc wrote: 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: https://groups.io/g/HP-Agilent-Keysight-equipment

Re: SDL and SunOS

On Sat, 21 Jul 2018, carlos_muri...@ieee.org wrote: Under SunOS 4.1.4, the last gcc version that is supported is 3.3.6, but I haven't been able to build it on an IPX;  it gets to the point where it Not quite true: # uname -a SunOS azu 4.1.1 10 sun4 unknown unknown SunOS # gcc -v Reading

Re: zilog system 8000

On Wed, 18 Jul 2018, Al Kossow wrote: https://www.ebay.com/itm/292646012304 local pickup only the reserve is >$1500 ROTFL A very big and expensive door stopper without OS tapes. But most importantly: the CPU board is missing! The card in slot 2 appears to be an additional SIO card. This is

Re: VT100's

On Thu, 6 Sep 2018, Paul Koning wrote: The work of a VT100 is quite a lot more complex than that of a VT52 (many more screen operations, and more complex control sequence parsing). With the hardware technology available at the time, it was a pretty tough job. Does the VT100 have a

Re: MOS 6500/1 ROM archival service

On Tue, 3 Jul 2018, Jim Brain wrote: But, I have pulled my hacked reader out from mothballs to read a CPU someone is sending, so I thought I would inquire if others have 6500/1 units that want read. Hint: Seagate ST-225 Christian

Re: 8 inch floppies, decaying

On Wed, 11 Jul 2018, dwight wrote: I've had the goo from the adhesive of 5.25 inch 360k disk come through the nice liner and make gobs on the disk. I tried several thing but found that isopropanol worked without removing any of the magnetic material ( maybe s tiny amount that was likely loose

Re: 8 inch floppies, decaying

On Wed, 11 Jul 2018, Al Kossow wrote: On 7/11/18 2:21 AM, Christian Corti via cctalk wrote: I use Screen 99 for cleaning floppies MSDS https://store.comet.bg/download-file.php?id=16956 first ingredient listed; isopropyl alcohol Of course, somehow you need some "magic" in

Re: Interest in Teac FD235J drives and FC-1 boards?

On Wed, 24 Jan 2018, Bill Gunshannon wrote: I wouldn't mind a couple of FC-1 but I bet the price would be much more than I can afford. Speaking of the FC-1 boards: it appears that they support different sector sizes, as well as MFM and FM encoding. How do you program this? Christian

Re: HP 9845A Computer

On Tue, 11 Sep 2018, Marlene Klein wrote: We have an HP 9845A computer (1977) in working condition. Can we post it on your site? That sounds illogical. How do you want to electronically post a physical object? ;-) And what site anyway? This is a mailing list. Christian

Re: Four Unibus boards from radiation dose measurement system.

On Mon, 19 Mar 2018, Mattis Lind wrote: Then there is some kind of serial com board with four UARTs on it. https://i.imgur.com/YvnTlxq.jpg That one is easy to name: That's an Able Quadrasync/E, I have that board, too. Christian

Re: EF50 was Re: radar history

On Mon, 5 Mar 2018, Christian Corti wrote: The EF50 has a Loctal base with eight pins. 5xx is Magnoval. 8x is Noval. Correction: Loctal with nine pins ;-) How crazy... Christian

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