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: 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: 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: 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: Lisa Source Code

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

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: 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

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: 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

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: 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: 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: 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: 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 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

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: 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: 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: 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: 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: 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: 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 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: 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: 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: 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: 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: 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, 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: 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: 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: 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: 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: 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, 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: 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

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 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: 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

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: 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: 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

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: 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 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 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

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

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

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: 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: 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: 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: 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: 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: 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.

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: 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.

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: 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: 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: 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: 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: 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

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: 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 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 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 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: 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 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: 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

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