- test-drb@ccmp.vtda.org - classiccmp.org

by sales＠elecplus.com

8086, 80286, 80386, 80486 laptops and some desktops available from Spain. 80286 and 80386 computers available from Ghana. Email me is you want the seller's contact info. I am not affiliated with them in any way. Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3343 / Virus Database: 3162/6340 - Release Date: 05/20/13

13 years, 1 month

2
2
0 0

Tek 4052 / Dc300 tapes issues

by shadoooo＠gmail.com

Hello. About the DC300 cassette repair: I have a lot of these cassettes, original from DEC with standalone backups of software for VAX 730 inside. Unfortunately all of them suffer of the "sticky" problem, the tension band attached to the tape, and then broke itself. A replacement of the bands is surely needed, the plastibands maybe could be a good source. The problem of the stickness remains however: how could I detach the tension tape from the magnetic tape without peel off the magnetic substrate? Maybe opening the cassette, adding some lubricant without solvent (silicon oil for example) and leaving it for some days could help? Andrea

13 years, 1 month

2
1
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Downsizing - Many Systems Available

by bpicchi＠gmail.com

Hi Dave, I saw your message about downsizing your collection. I have a small museum of computers here in Southern California. You can view my website at TanruNomad.com I'm interested in purchasing 3 of your computers: Apple II IBM 5100 ProcessorTech SOL Would $400 for all 3 be acceptable? -- *Brian Picchi*

13 years, 1 month

1
1
0 0

Signal generator available

by sales＠elecplus.com

Not affiliated with this guy at all, just thought someone might be interested. We have a Rhode & Schwarz---- SMHU SIGNAL GENERATOR Has some problem----- Marked Rejected-(w/note too expensive to repair) Lights-up and then shuts off...... Looking for an interested participant..... Do you have any interest? Dollar Bills (1) 214-264-9000 Cindy Croxton _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3336 / Virus Database: 3162/6338 - Release Date: 05/19/13

13 years, 1 month

1
0
0 0

Need Timing Generator Coil for a DEC paper tape punch

by michael.99.thompson＠gmail.com

The Timing Generator Coil on the paper tape punch on the PDP-9 at the RICM is open circuit. The current plan is to try to source some really fine magnet wire and rewind the coil. It would save us a lot of time and effort if someone would be willing to donate a replacement coil. Is a PDF version of the maintenance manual for this Royal McBee punch available? -- Michael Thompson

13 years, 1 month

1
0
0 0

OS/2 CDs - free...

by jrr＠flippers.com

I have a collection of OS/2 CDs that a past developer for OS/2 gave me years ago and they've been sitting on a shelf at my shop here in Vancouver, BC (Canada). I just noticed some discussion on OS2 and thought someone local to me may be interested in the pile and I'd rather they went to a good home than be recycled...just pay shipping. Includes: OS/2 Source kit (1994) OS/2 1000+ Applications Guide (1993) The Developer Connection for OS/2 - 1, 2, 3 (1994) OS/2 Warp Ver 3 (1995) VisualAge C++ for OS/2 Ver. 3.0 (1995) OS/2 Hobbes CDROM (1993) C Set ++ for OS/2 (booklet only - CD lost, see next item) IBM C Set ++ for OS/2, Ver 3.0 Beta 2 Ver 04/95 (This product has been renamed "IBM VisualAge C ++ for OS/2, V3.0" OS/2 Warp Connect Ver 3 (1995) Others: Digital Tools For SUN (1992) SCO OpenServer 200-920-100 (1995) There may be a few more, but that's the easily listed ones. John :-#)# -- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames) www.flippers.com "Old pinballers never die, they just flip out"

13 years, 1 month

18
34
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Tek 4052 / Dc300 tapes issues

by jdr_use＠bluewin.ch

So I picked up a pair of Tek 4052, plenty of doc and spares, and some library tapes. Sadly tapes were stored in less that ideal conditions. So I have mouldy tapes, and lots of broken DC300 drive belts. I am ready to ignore the mould, but what about the drivebelts ? Any alternatives to pinching them from still functional cartridges ? Jos

13 years, 1 month

7
12
0 0

Omnibus - ATA Adapter Re: Omnibus to USB

by chd＠chdickman.com

On Fri, May 17, 2013 at 8:38 PM, Rob Doyle <radioengr at gmail.com> wrote: > On 5/17/2013 12:01 PM, Cory Smelosky wrote: > > IDE on a PDP-8 would be...interesting to say the least. >> > > I played with an adapter about 10 years ago. I think it was a PLD with some buffers. I wasted the upper 4 bits in every word and took advantage of the fact that the command registers are only in the lower 8 bits. PIO mode transfers only, so it was really simple. It was impossible to get a handler for OS/8 small enough to fit in two pages. I cheated and put stubs in the lower fields and the handler itself in the high field. > The Spare Time Gizmos SBC6120 board has an IDE disk drive. They've also > hacked a device driver for OS/8 that supports it. > > And most of the device driver is in console memory space. -chuck

13 years, 1 month

1
0
0 0

Running DDR really slow, for a microcontroller

by rdawson16＠hotmail.com

Has anybody used a DDR3 part in DLL Disable mode? I'm looking at a Micron MT41J512M4, and the datasheet says that in this mode, the max. clock period is 7800ns. (thats 128,205 Hz) So it looks like you can interface these with microcontroller just fine. Anybody tried this? Randy

13 years, 1 month

2
1
0 0

Available S-100 PCBs

by LYNCHAJ＠YAHOO.COM

Hi, an update on available S-100 board PCBs Good news!? There are several new and reordered S-100 PCBs available! The S-100 68K CPU boards are almost gone and there is still 1 available. There are 23 of the S-100 IDE V2 reorder PCBs and 3 of the new S-100 bus terminator/prototyping board PCBs. There are 3 of the S-100 LAVA PCBs available. http://s100computers.com/My%20System%20Pages/68000%20Board/68K%20CPU%20Board .htm http://s100computers.com/My%20System%20Pages/IDE%20Board/My%20IDE%20Card.htm http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%20bus%20t erminator http://s100computers.com/My%20System%20Pages/Lava-10%20Board/LAVA-10%20Board .htm The S-100 PCBs cost the same as before ($20 each).? However due to unforeseen extreme price increases in shipping by USPS I am forced to change shipping costs. Shipping in the US will be $3 for a single PCB and $2 for each additional PCB.? Shipping internationally will be $10 for a single PCB and $3 for each additional PCB.? This is for the bare basics USPS first class postage with no tracking or insurance.? The builder assumes all risk of delivery as per usual arrangement. I apologize for the large price increase on shipping but this is out of my hands.? The USPS is in dire financial trouble and is raising prices on shipping.? It affects us all and is most unfortunate.? These boards are provided "at cost" so there is no margin to absorb any shipping price increases.? I have to pass them along. If you would like one or more S-100 PCBs please send a PayPal to LYNCHAJ at YAHOO.COM Thanks and have a nice day! Andrew Lynch PS, if you would like to help out this all-volunteer project please get one or more of the S-100 LAVA PCBs. These PCBs are the oldest ones and them sitting around on a shelf does no one any good. I?d like these to go to a hobbyist who would get some enjoyment from these fun to build and use boards. Thanks in advance. I truly appreciate everyone's support in moving these remaining boards. You make this hobbyist home brew project possible.

13 years, 1 month

2
1
0 0

ADF/high speed scanner - Toronto area?

by toby＠telegraphics.com.au

I posted this to a local list (Unix Unanimous) but got little response, so am reposting here. --------------------- Anyone have a scanner (some kind of ADF) that I could borrow or use on site or even buy (especially Epson, which I've seen superb results from)? I have a lot of ring binder type pages that I'd like to scan. 300/400 dpi should be adequate. This is just a non-commercial personal retrocomputing project. Toronto area (~ Davenport). Thanks in advance, --Toby

13 years, 1 month

2
1
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AT&T 3B1 / 7300 UNIX PC parts needed

by classiccmp＠philpem.me.uk

Hi guys, A few of you might be aware of my UNIX PC emulator, FreeBee (also known as 3b1emu) and the issues regarding it not being able to boot UNIX properly... and my complaints about the quality of the PAL equations in the technical reference. Well, an anonymous donor very kindly freight-forwarded a UNIX PC to me. Sadly the original sender didn't pack it very well... The machine was sent unwrapped with only a few foam peanuts in the box. It arrived with a "resealed by USPS" sticker, a "resealed by Parcelforce" sticker and the keyboard hanging out of one edge of the box. Here's what's missing or wrecked -- does anyone have any of the following 3B1 or 7300 parts spare? Keyboard - * Top cover, several broken screw posts in the top cover. These look difficult to re-glue... * F8, HELP UP/DN, NEXT/3, ROLL DOWN/0 and RIGHT CURSOR/. keycaps. Monitor - * Monitor stand (tilt/swivel section) smashed to pieces. Probably need a new lower monitor case from a scrap 3B1 to fix this :( I'd also rather like to find out what sort of connector was used for the power connector at the PSU side - the cable and connector are badly burned (apparently a common problem). On a lighter note, the machine is fairly well specified - with a P5.1 motherboard, two 67MB hard drives (both Miniscribe 3085 units) and some unusual I/O cards. One is probably a modem (three RJ11 sockets), another has a 37-way female D-sub and the third I can't remember off hand. I still need to formulate a plan to power it up - I'd rather not use an ATX PSU, and the original switcher is 115V only. The 20A current requirement on 5V means none of my bench PSUs are suitable... It also wants +12V (which I expected - the HDDs and line drivers need that) and -12V (probably for RS232 and the modem)... Much thinking needed, I dare say... Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

13 years, 1 month

5
9
0 0

IBM 5161 Cable Pinout Needed

by arrowrunner＠gmail.com

Does anyone know if the 5161 uses a special pinout or if it's simply a straight-through cable (i.e. pin 1 to pin 1)? I've been searching but haven't found any answers. -- Sent from My Hippopotamus

13 years, 1 month

3
6
0 0

who is keeping the cross reference?

by sales＠elecplus.com

I have binders full of pages that give complete info on everything from identifying floppy drives, cross reference of old memory, pin outs for single board 486 computers, etc. Am willing to scan into PDF or OCR, if someone will keep track of all this stuff? Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3336 / Virus Database: 3162/6328 - Release Date: 05/16/13

13 years, 1 month

2
1
0 0

Dr. Alan Wilcox and 68000 S-100 board

by brian＠marstella.net

Hi, everyone. I've been following the S-100 community for quite a while now, especially the newer boards created by Andrew, John, and others. Last year, I was lucky enough to meet with Dr. Wilcox and receive numerous bits of computing history, especially the notes and the 68000 S-100 board that he designed. He was gracious enough to permit me to scan and post the notes, which I've been planning to do and still will accomplish at some point. I have posted photos of the front and back of his 68000 board (wire-wrapped, no less) on my web site http://marstella.net/?p=245. I also have his only copy of the 68000 book he wrote containing all of his errata. I'm planning to get that information compiled first as that book still appears to be very popular on eBay, when a copy shows up. I'll post more as I gather and organize information and will try to post summaries of each journal as there are many of them. There are also numerous schematics and code listings spread across dozens of manila folders. Regards, Brian.

13 years, 1 month

1
0
0 0

pn for 3471 and 3472 and other oldies by IBM

by sales＠elecplus.com

I have a list from the 1990s that gives the IBM PN for lots of replacement parts for OLD IBM machines that a company near me used to have on maintenance. If anyone is interested in this 15 or so pages, I can scan them into PDF. For instance, 1495730 is a clamp that goes into a 5210 1495733 is a print wheel hub for a 5219 1619618 is a 1.44 floppy for 8525, sub = 33G4343 Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3336 / Virus Database: 3162/6324 - Release Date: 05/14/13

13 years, 1 month

1
0
0 0

Anyone want some free EISA cards?

by lproven＠gmail.com

During the ongoing clearout, I've found some full-length EISA controller cards. By the look of it, there are some SCSI 2 host adaptors - they have high-density 50-pin connectors on their backplates - and what might be ESDI controllers. I don't own any EISA machines any more and am not expecting to, so if nobody wants these, I will send them to recycling. Free for the cost of postage. Surface post to the USA/Canada/south America would not be /too/ prohibitive. They're currently in London. I've never had any interest in anything on the Vintage Computer boards & I don't think these are worth eBaying, but if anyone wants to disseminate this offer, please feel free - including my email and other contact details in the .sig. -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

13 years, 1 month

6
11
0 0

I'm working on a Storage Display and need parts.

by bearnold＠outlook.com

I'm working on creating a static display of storage types/media for use in schools and such. Anybody spare some dead pieces? I'm not sure I want to make it a detailed survey, probably more of an overview. Although I could have the first panel being general and add-on panels with more detail. I'm interested in Core memory 1/4 tape cart 21" fixed disk platter & head (NCR 656/CDC Hawk if I can ask (kick myself for trashing my stack of them)) Various memory chips Bernoulli carts Syquest carts WORM disc cart What ever you think is interesting. Thanks, Brad Arnold President & Cofounder, Atlanta Historical Computing Society http://www.ATLHCS.org

13 years, 1 month

21
56
0 0

KDJ11-B rev 8 boot roms

by aek＠bitsavers.org

put these up under http://bitsavers.org/pdf/dec/pdp11/1173/firmware/KDJ11-B_Rev_8/ Pete Turnbull had revs 6 and 7

13 years, 1 month

28
68
0 0

New Kaypro Success and then Woe

by brain＠jbrain.com

I scored a reasonably good condition KII on eBay last week, which booted but looked like it just needed some CRT adjustment (screen was garbled, but in a small line at center, which suggest a simple pot tweak). Sure enough, got it home, plugged it in, popped the lid, adjusted the pot, and intro text. Used teledisk to make a boot disk, and the machine booted! Since I had it open and I was trying to check on the drives in the 4, I disconnected the internal drives in the II and connected a K4 drive. On power on, the drive did not even spin up, and so I pulled another Kaypro to test. Does the Tandon use different voltages? Now, tonight, I boot the unit, and the drives spin up but the activity LEDs won't light up on init, and it obviously won't boot. A spare tandon SSDD behaves the same. It appears the drive logic on the main PCB is not operational now, though I can't imagine plugging a DSDD from a K4 would mess things up that much. Any ideas on where to start looking? Jim -- Jim Brain brain at jbrain.com www.jbrain.com

13 years, 1 month

2
1
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[ebay ad] two Tube/Valve analogue computers Donner 3000

by Arno_1983＠gmx.de

Hello, please excuse this little plug for gear on ebay from a friend of mine. He just told me he put what pretty much amounts to two Systron Donner analogue computers from 1954 on ebay and asked me to spread the word where I think it might be heard; I'm not involved with the transaction in any other way. http://www.ebay.de/itm/251273118755 Computer Module, Initial Condition Modul and a custom Function Generator module are present twice, Cyclic Reset Generator just once. Several patch panels and potentiometer modules, documentation and schematics included, but no cables. Will _NOT_ work "out of the box", restoration required. Freight shipping from or pickup in Northern Germany. He states the gear was shown in the German computer documentation "WDR Computernacht" as opener on the 8th episode "Artificial Intelligence". Thanks for putting up with the occasional ad. So long, Arno

13 years, 1 month

6
5
0 0

Osborne Vixen video codes

by mloewen＠cpumagic.scol.pa.us

Does anyone have a list of control codes for the Osborne Vixen (OCC4)? Cursor addressing, video attributes, graphics mode, etc. Thanks. Mike Loewen mloewen at cpumagic.scol.pa.us Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/

13 years, 1 month

1
0
0 0

first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by seefriek＠gmail.com

AT&T SVR2.something on a 3B20 for about 3 days before conning my way into a SunOS 3.5 account on a Sun 3/160. From: Rich Alderson <RichA at vulcan.com> > > And I've tried so hard! Pyramid 90x, UChicago, 1982. > We had one of these at GaTech. Which one of the equally broken "universes" did you work in? On May 10, 2013, at 7:29 PM, "Zane H. Healy" <healyzh at aracnet.com> wrote: > > As mine was a special secure version of A/UX 2.0 on a Mac IIfx that > was cleared for Top Secret work, I'd just as soon forget it. > At the beginning of my career, I worked for the company that almost certainly wrote that. You're welcome! P.S. - We also wrote the infamous C2-Subsystem for SCO Unix. Still get hate for that. On 05/10/2013 08:04 PM, Zane H. Healy wrote: > > I thought MGR (who remembers that) would be the way > to go > Oh yes. Definitely remember MGR. Learned a lot from studying the code. Tangentially...AT&T Layers. From: "Rick Bensene" <rickb at bensene.com> > > It ran a derivative port of 4.2BSD called UTek...I learned a lot > about Unix internals, as I managed to get my hands on > source, and could build my own kernels, drivers, and utilities. > I would really like to see the source to UTek of that vintage, having spent time with (much) later versions. Neat system. From: BE Arnold <bearnold at outlook.com> > > First one I got any real training on was NCR's flavor of AT&T 5.4. > Oddly, I spent a lot of time with, of all things, Dell's version of SVR4 running on their hardware in the 386/486 days. They put a lot of effort into making it slick to install and use. Much nicer than you would imagine.

13 years, 1 month

1
0
0 0

OS/2 on hardware other than '286 or '386 processors

by rob＠bitscience.ca

It didn't happen, at least not at IBM or Microsoft during the Joint Development Agreement era. It would have been physically impossible. After IBM had OS/2 to itself, all sorts of strange things went on. So, I can't completely discount a port after that point. I would be extraordinarily surprised if IBM had targeted DEC hardware, though. But up until "the divorce", I can unequivocally state that no such thing happened. - Rob Ferguson (Microsoft 1986-1996 and other times)

13 years, 1 month

13
25
0 0

Anyone have a IBM Model 25-286 Riser card?

by raifield＠gmail.com

I had the bright idea of swapping out a Model 25 board (8086) with a Model 30-286 board, thinking that the boards were exactly the same. They are, actually, but the Model 30 board comes with a three-slot ISA riser, which does not fit in the Model 25 case. Apparently I need the Model 25-286 two-slot riser. I don't want to try plugging the original 8-bit Model 25 riser in, I fear it will somehow fry the board. Does anyone have a riser card they're willing to part with, or know the IBM part number I need to be looking for?

13 years, 1 month

5
9
0 0

Taligent

by nigel.d.williams＠gmail.com

On Tue, May 14, 2013 at 6:59 AM, Guy Sotomayor <ggs at shiresoft.com> wrote: > Taligent was to be part of the application framework. The microkernel used by Pink and > the object model were "toys". Much of the consternation over Taligent at IBM was fighting > over trying to get fundamental issues addressed (which I won't go into here...it would take > many hours to compose a sane account). Did some of the Taligent codebase end up in SUN's Java implementation, perhaps the libraries? I encourage you to add to the story of Taligent. I remember at the time Taligent gained a lot of press attention, particularly when Apple was struggling with what to do with their operating system and Pink was seen as the answer.

13 years, 1 month

6
6
0 0

first unix experiences

by barythrin＠gmail.com

My first glimpse of a unix shell was a bit obscure and late in the game (it was obsolete at the time) but I'm curious if someone here can confirm/guess what it was. It was large desktop machine and I can't quite remember if it was side by side (think full height) 8" floppy drives. It was at a computer repair store as something to play/learn on. Unfortunately this was probably mid 90s so no help as to the actual year the machine was in production. I had always wanted to buy it off the store but they disappeared before I had any paying job or opportunity. I'm guessing it was a Vax but since I haven't really seen may first hand other than my 3000 did they come as 8" floppy desktops?

13 years, 1 month

1
0
0 0

first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by kevin_anderson_dbq＠yahoo.com

SunOS on 3/50s, 3/60s, with a server and thick Ethernet cabling. This was around 1986 to 1988, while I was in graduate school. After that, 1994 to 1999, it was administering a whole office full of Sun networked workstations (10, 20, UltraSparc). My first non-Sun Unix experience was testing BSD on a small PC. As one you has never really had DEC PDP-11 or Vax experience to any extent, I look at those computers and think more about wanting to put Ultrix or some other Unix/BSD/Linux system on them and don't think nostalgic about DEC operating systems. My first big computer experience (not counting some timeshare Basic programming on MECC/MERITS systems in Minnesota) from 1977 to 1981 in college was with Harris computers running Vulcan or VOS. That is my frame of reference for major computer, followed by SunOS/Solaris. Today my operating system of choice is Linux (e.g., Xubuntu). Having said that, I do have a healthy respect and admiration to those of you here who know PDP-11 and Vax systems, plus before that PDP-8 and things like OS/8. Let alone the various obscure systems. I just can't relate at the same time. Kevin Anderson a lurking subscriber from Iowa

13 years, 1 month

8
9
0 0

HP 1820-1584 IC replacement?

by hp-fix＠xs4all.nl

Bob, Those hp parts, the expansion bus uses them also. If you don't use a rom module you can use on of them, they're located near the rom connector. Rik -----Oorspronkelijk bericht----- Van: "Bob Rosenbloom" <bobalan at sbcglobal.net> Verzonden: ?11-?5-?2013 07:40 Aan: "On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Onderwerp: HP 1820-1584 IC replacement? I have an HP 9872 plotter that just died. According to the internal self test (very nice!) one of the bib (MOS to TTL) drivers has failed. A scope shows one data line not moving also. The HP part number is 1820-1584. I can't find a cross reference on the web for it. Does anyone know if there's an equivalent chip? It's a 20 pin dip. +7 volts on pin 20, gnd on 10 MOS side is pins 1-8, TTL side is 12-19 A signal called TTL on pin 9 and another control signal, BD on pin 11 I would love to get this running again. Thanks, Bob

13 years, 1 month

4
3
0 0

An IRIX time capsule...

by jon＠jonworld.com

Hi! This probably doesn't count as true vintage, since it's circa 1992 and is a 32-bit workstation. But it's an awesome score for something local to Indianapolis and as complete as it is, so I must brag. I just scored an SGI Indigo Iris, complete, with keyboard, mouse, 19" beige SGI monitor, two internal hard drives, floppy drive, DDS tape drive, and external CD-ROM, plus boxes full of software and books. It's a 33Mhz 16M system with an R3000 w/ math coprocessor. The stuff that came with it is even more interesting. The books include the full SGI document set; Iris software guide, Iris owners guide, programming guide, network programming guide, compiler guide, ANSI C transition guide, C language guide, C++ programming guide, (again, all SGI-branded.) There are also AT&T C++ Library guides, still in the shrink-wrap. There is also some vintage O'Rielly books like learning vi, the X11 programming manual. There are also two OSF/1 Motif programming manuals (Programmers guide, style guide.) Also included are guides for SoftPC AT, allowing up to a 286 to be run under Irix. I believe this is installed on the system but I have yet to test/verify. There are even more books, which are water damaged :( CDs include IRIX 4.0.5, IRIX 4.0.5 maintenance, Soft PC/AT 1.1, Hot Mix 1-6, and a few other odds and ends. Is any of this stuff BitSavers or the document archive website(s) would be interested in?

13 years, 1 month

38
80
0 0

MXV11 Documentation

by cruff＠ruffspot.net

On May 11, 2013, at 11:19:11 +0200 Sander Reiche wrote: > These seem to be engineer drawings : > http://www.mainecoon.com/classiccmp/MXV11-A/ Warning: don't try to use the Mac OS X Preview app to open these files. While they will display ok the first time, but Preview will resave them as files 100x the size of the originals, but all of the pages will now be solid black rectangles.

13 years, 1 month

2
1
0 0

The things you find on ebay...

by barythrin＠gmail.com

Was it related to some marketing slogan/advertisement at the time?

13 years, 1 month

2
1
0 0

XTIDE controller now available

by charger_pete＠yahoo.com

Hello! Do you still have any XT-IDE controllers for sale? Thank you!

13 years, 1 month

2
1
0 0

An IRIX time capsule...

by elson＠pico-systems.com

A while ago, somebody put an SGI IRIS 2020 out on the loading dock of the computer science building at work, where they often put things they think somebody might want to tinker with. I dragged it over to my building and plugged it in, and the console monitor came up. That machine had almost a Unix shell as the console monitor, you could read files off the disk and such. Well, I took it home and after consulting with some people online who know the model, it was determined that the geometry engine was bad. I found a guy in Germany who had all the boards and shipped them to me for a couple hundred Dollars. I plugged the GE board in, and it booted IRIX. I got the guy who wrote the SGI flight sim demo to send me the source code, compiled it, and it worked. (He has asked me not to name him, as that program is under SGI copyright.) It had a quirk due to using the GE's matrix transforms to do ALL 3D arithmetic, including the "flight dynamics". It would get "stuck" at the 4 main compass points. I never figured out how to recode that to use standard C arithmetic. It was a cool toy, but then 3DFX and similar PC graphics boards came out and Flight Gear was created. The replacement GE board eventually also failed, and although I had plenty of chips to swap to repair it, I didn't have the diags to find out which one was bad. I eventually sold all the boards to a broker to use for repairs. Apparently the Air Force still uses them, I'm guessing maybe for flight simulators. Jon

13 years, 1 month

1
0
0 0

first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by mtapley＠swri.edu

>>>> You never forget your first UNIX. I think it was actually NeXTStep 1.0. A smidgen of TOPS-10 early, some punch-cards on a Cyber ???, a lot of RSX-11M, smidigin of CP/M, lots of TRS-DOS and then Mac OS, some HP-DOS, a smidgin of MVS/VM, possibly just a login onto a Sun workstation, but I really settled in and worked Unix (to run Mathematica, mostly) on the NeXT or on my serial connection to it via my DEC Rainbow. I'm discounting my "use" of the mail server functionality, since about all I ever saw was the mail client, but SunOS/mail may predate the NeXTStep. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

13 years, 1 month

1
0
0 0

Manual for CMD CQD-240/TM

by lbickley＠bickleywest.com

I've searched in all the usual spots and haven't been able to find a CMD CQD-240/243 manual. It is a Qbus controller with both single-ended and differential SCSI capability. It looks similar to the CMD CQD-220 (manual on bitsavers) and the CMD CQD-720 (manual on bitsavers) - but has a different switch configuration with more options. Regards, Lyle -- Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

13 years, 1 month

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Anyone have a IBM Model 25-286 Riser card?

by raifield＠gmail.com

The 8086 versions of the Model 25 and Model 30 have 8-bit ISA risers, the 25 with a two-slot riser and the 30 with a three-slot riser. The 80286 versions of each have 16-bit ISA risers, again the Model 25 with two slots and the Model 30 with three. I tried plugging the 8-bit riser into the Model 30 286 board, but the system refused to power up. In addition, the Model 30 riser is incorrectly spaced to fit in the Model 25 all-in-one case. Even if I cut the top slot off, the remaining two don't line up at all. It looks like I need the genuine part, which no one seems to have anywhere. Date: Sun, 12 May 2013 17:44:34 +0100 > From: Liam Proven <lproven at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Anyone have a IBM Model 25-286 Riser card? > Message-ID: > < > CAMTenCHuWaAxtnBSujB7v1e6aGUhWBSco-quVRoXBCPLD+8eQA at mail.gmail.com> > Content-Type: text/plain; charset=windows-1252 > > On 10 May 2013 22:37, Terry Stewart <terry at webweavers.co.nz> wrote: > >>Besides, the 16-bit PS/2s are 16-bit MCA, not 16-bit ISA. > > > >>Peace... Sridhar > > > > Not all of them. My IBM PS/2 30-286 is is ISA-based. > > That's sort of what we're debating here. Are the ISA-based PS/2s 8-bit > or 16-bit? IOW short or longer, 2-part ISA slots? > > You could resolve the question - which does yours have? > > -- > Liam Proven ? Profile: http://lproven.livejournal.com/profile > Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven > MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven > Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 >

13 years, 1 month

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Printer Format Tape Punch

by n8uhn＠yahoo.com

I have a unisys 9246 line printer that uses a format punched paper tape and don't have the tape. the printer will work with out it. the manual did mention a punch and gave a few generic punch model numbers so one could purchase one.. Bill Folks, Spotted this on E-Bay UK. Now I am sure I must have worked with printers that used a format tape, but I don't remember a punch... http://www.ebay.co.uk/itm/190837106811 Dave G4UGM

13 years, 1 month

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The things you find on ebay...

by b4＠gewt.net

I was searching through ebay for some PDP-8/e stuff to show to someone and I stumbled across this: http://www.ebay.com/itm/DL-Lesney-Matchbox-Series-Daimler-Bus-Digital-PDP-8… I have no idea what I have just discovered...

13 years, 1 month

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first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by dm561＠torfree.net

>From Cromemco Cromix on a Z-2 in 1981, through UNIX V.2 on a CS-420 in the early 90's.

13 years, 1 month

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follow up???? - offer - OS/2 for the PDP-11

by other＠oryx.cc

Hello All, I a new subscriber from just a few days ago, and I have spent more hours than I care to admit to going through all of the emails in the online archives. In past lives, I spent a lot of time with OS/2, and even though I don't spend as much time as I used to with it, OS/2 comments still catch my attention. Anyway, to get to the point, I caught this thread (bottom) from 2008 which generated a bunch of comments. The thread was briefly revived in early 2009. If there was ever a final fall out from the thread, I somehow missed it. Was there a version of OS/2 for CPU's other than X86 or PPC? What was ultimately found to be on the tape? Thank you, Jerry ------------------------------------------------------------------ Yes, you read that correctly. I have in my possession a TK-50 tape for the PDP-11 system which contains none other than OS/2 operating system. Many people have claimed this never existed. But I have the tape! I had done a directory dump of it and can supply it. One other person who's checked the directory listing has said it is authentic. I'm not sure what to do with it, and I believe IBM made OS/2 open source, so technically it should be "free" of it's chains maybe someone can turn it into something useful, or just run it and have the most unique PDP on the planet, I don't know... whatever :) anyhow, it's a really weird bit of computing history, and I'd hate for it to be lost. it should be in a museum :)

13 years, 1 month

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Control Data 9747

by abacos_98＠yahoo.com

Has anyone ever heard of this drive model? It looks just like the 9746 in the CDC brochure. Maybe a custom interface? I cannot find any specs or info for it. http://www.stargeezer.net/SAM_2775.JPG http://www.stargeezer.net/SAM_2776.JPG http://www.stargeezer.net/SAM_2777.JPG http://www.stargeezer.net/SAM_2778.JPG http://www.stargeezer.net/SAM_2780.JPG http://www.stargeezer.net/SAM_2781.JPG http://www.stargeezer.net/SAM_2782.JPG It was still in its shipping box and by the looks of it, I don't believe it was ever used. Brian.

13 years, 1 month

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KA630 SLU details?

by mouse＠Rodents-Montreal.ORG

It's a bit of a long shot, I know, but is there anyone here who knows details of the KA630 (MicroVAX-II CPU) console serial line hardware? My emulator is failing selftest 2 and it appears to be because it's expecting the console serial line to act in some way mine does't. But it's not clear from the code what it's expecting, just that it's obviously different from what I've implemented. In particular, what I see in my instruction trace is: - set stuff up, including putting SLU in loopback - drop IPL - take transmitter-ready interrupt - tell it to transmit a NUL - REI - enter wait loop (with countdown timeout) - take transmitter-ready interrupt, long before countdown expires - do nothing that touches the SLU - REI - take transmitter-ready interrupt again immediately - fail the test But I thought real hardware acted this way: don't clear an interrupt condition and it fires immediately upon REI. So there's clearly something I don't understand going on, hence my question.... /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

13 years, 1 month

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My TRS-80 Model 4 on YouTube

by terry＠webweavers.co.nz

My TRS-80 Model 4 stars in its own YouTube video. An all-in-one classic computer. One of my favourite models. http://youtu.be/TjkjIN1pe_A Terry (Tez)

13 years, 1 month

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Printer Format Tape Punch

by dave.g4ugm＠gmail.com

Folks, Spotted this on E-Bay UK. Now I am sure I must have worked with printers that used a format tape, but I don't remember a punch... http://www.ebay.co.uk/itm/190837106811 Dave G4UGM

13 years, 1 month

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first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by nigel.d.williams＠gmail.com

https://www.msu.edu/~mrr/mycomp/terak/termubel.htm Lycklama's MINI-UNIX on an PDP-11/03, early 1980s for my first experience. MINI-UNIX was a cutdown UNIX V6 kernel that operated on a PDP-11 without MMU support, by swapping each process in and out of what little memory remained (12KW for the kernel and 16KW for user space). What made it somewhat usable for us was the very fast optically-positioned Pertec fixed/cartridge disk system (emulated an RK05) we had on the system at the time. It was essentially a single user environment, but the C compiler worked. I think we briefly tried two terminals (ADM3a) just to see if it would work. That experience lead us to later get an LSI-11/23 CPU board and additional memory and start running UNIX V7, and for a brief time we had 12 terminals connected with students able to do a mix of Pascal and simple FORTRAN programs (no one wanted to use C at that stage).

13 years, 1 month

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Downsizing - many systems available

by dave13＠dunfield.com

For various reasons I am looking to downsize my classic computer collection over the next few years. The collection can be seen at: www.classiccmp.org/dunfield [Keep trying if it says "service unavailable" - the classiccmp server seems to be having problems lately] Most of the system depicted are available. A few I will keep, a few are already placed, and a few are "on loan" and will be returned to their owners, but most of the systems shown are available (as well as a few which have not been processed yet). If you are interested in one or more systems from my site, please contact me off-list and let me know specifically what you are interested in. All of the equipment is located near Ottawa, Ontario Canada. If anyone is interested in the entire collection, let me know and perhaps we can work something out. If there is serious interest in the whole collection, I can make a detailed inventory of exactly what would be available. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 1 month

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Wanted: VR201 and LK201 for DEC Rainbow 100

by lists＠loomcom.com

Hi folks, At a local swap meet this morning, I stumble across a pair of DEC Rainbows. I got both of them for $45! Hey, no comments from the peanut gallery, _I_ think these are collectible anyway :) And they're getting really hard to find, so I'm happy. Unfortunately, as is all too often the case these days neither one had a keyboard or monitor with it. So I'm looking for at least one VR201 monitor and an LK201 keyboard. If you've got any spares floating around please drop me a line. I think they're starting to be unobtanium, which is really too bad. I'm located in the San Francisco Bay Area, by the way. Regards, -Seth

13 years, 1 month

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IBM I/O Selectric project

by lawrence＠ljw.me.uk

I've been working on an IBM Selectric typewriter which I bought earlier in the year. It is the I/O Selectric type 735 which differs from a normal Selectric in having the solenoids and switches on it to allow it to be used as a printer and keyboard. When I got it the motor wouldn't run, and the mechanism was jammed. The motor problem was its thermal trip, which is meant to be the resettable type, so I replaced that. I gave the whole thing a clean with degreaser, which freed up the mechanicals, then oiled and greased it. It then worked happily as a typewriter. I have made a small interface, based on an Arduino Mega 2560, which provides a serial port. Currently this only supports printing, but will be extended to include the keyboard. It uses almost all the digital I/O on the Mega (15 solenoids, 27 contacts.) There are still some adjustments to be done, and I am awaiting a set of Bristol Wrenches (Keys) so I can safely do these. I have tried using Torx and Allen keys, and while they can be made to 'fit', it doesn't seem like a good idea. There are some pictures and videos of the typewriter here: http://www.flickr.com/photos/ljw/sets/72157632841492802/ You can get the Arduino interface code here: https://github.com/ibm2030/IOSelectric I haven't yet documented the hardware I used for the solenoid drivers, but if anyone is interested I can put some notes together (basically: Arduino output to 2N7000 FET buffer to ITS4140N +48V high-side driver on the output side, and a simple 250R pullup to +5V on the input side.) Manuals here: http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/typewriter/selectric/ (or other Bitsavers mirrors) Info on the Mega2560 here: http://arduino.cc/en/Main/arduinoBoardMega2560 -- Lawrence Wilkinsonlawrence at ljw.me.uk The IBM 360/30 pagehttp://www.ljw.me.uk/ibm360

13 years, 1 month

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Source for replacement parts?

by earl＠baugh.org

I'm looking for a part for a Mac Studio display (and yes, I know this doesn't qualify as "classic" but I'm trying to find a good overall solution for this type of repair). The part that failed is a simple piece of metal in a hinge which seems fairly well designed for replacement. However, I've been unable to find any sources for the particular part, Apple, etc. don't seem to have anything available. I do see some sites that have the entire hinge assembly available in the $18-$20 range, but I've been able to pick up entire monitors of this type for $25, so this really doesn't seem to make sense to pay this much for just the hinge when I could get a full set of spares (or even yet ANOTHER working monitor with the same issue). I'm wondering how people solve "spare/parts" issues like this. I've posted something to http://www.shapeways.com/ to see if someone would model the existing part, which I could then get them to fabricate. Not sure if that's going to be cost effective either (unless I order some quantity and sell extras with a mark up...) Earl p.s. A big thanks for the advise on the lubrication for the floppy drives. I ordered some of the Drislide which works excellently. A simple cleaning job with straight isopropyl alcohol, a couple drops, and all three floppy drives are now working as good as new...

13 years, 1 month

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