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101090 discussions

Lecture: The Oldenburg Computer Museum – Rearing and Care, 2021-06-12, 19:00

by stueberahoo＠yahoo.de

Hi all, you're invited to the Update computer club[0] public lecture series "Updateringar"[1]! Update is a Swedish computer club founded in 1983 whose members tinker with all kinds of computers, from Raspberry Pi to PDP-12. The club has a big collection of historic computers. In this lecture series we'll talk about everything related to computers: Historic and modern computers, operating systems, programming, hardware projects, creating art with computers, building a computer museum, and more. When: 2021-06-12, 19:00 CEST Where: https://bbb.cryptoparty.se/b/upd-0mo-m2u-aq8 The Oldenburg Computer Museum ? Rearing and Care The Oldenburg Computer Museum (OCM) is a German computer museum founded in 2008 and run by volunteers. This talk presents a historical outline of the founding of the OCM. From building up the collection to opening the first exhibition to founding the supporting association and moving to the current premises ? and the professionalisation that goes with it. Thiemo Eddiks presents the didactic concept, explains the museum work in the team and gives insights into and outlooks on current projects. In addition, he talks about problems associated with running a museum as a hobby. Thiemo Eddiks (Oldenburg Computer Museum) The lecture is free and open to everyone. Upcoming: 2021-07-10, 19:00: How I ported Space Invaders to a video game console from 1978. Bjarni Juliusson (Update) Hope to see you there, Anke [0] http://www.update.uu.se/index_eng.html [1] https://www.update.uu.se/wiki/doku.php/projekt:updateringar

5 years

DEC Computer Lab for sale

by wdonzelli＠gmail.com

Over on the Discord, I have posted a DEC Computer Lab H-500 for sale. Needs cosmetic help, but will be priced accordingly. Offers? Off list... -- Will

5 years

Epson QX-10 Q10CMS board

by jules.richardson99＠gmail.com

Hi all, There was a post in one of the Facebook vintage groups from someone who has Epson QX-10 Q10CMS and Q10GMS boards. The GMS is what I have in my own QX-10, but does anyone know what the CMS board is? Both boards have a NEC 7220 graphics controller, but the CMS appears to have more on-board memory (384KB vs. 256KB). On the other hand, I'm not seeing any on-board ROM in the photo of the CMS, unlike on my GMS. cheers, Jules

5 years

Compaq C V6.5-303 for Tru64?

by me＠larbob.org

Does anyone have a copy of Compaq C V6.5-303 for Tru64? It used to be available from https://h20392.www2.hp.com/portal/swdepot/try.do?productNumber=T64_DTK, but this link has been dead for a while and hasn't been archived.

5 years

ISO: DW8E parts

by derschjo＠gmail.com

Hi all -- I picked up a DW8E backplane from a friendly listmember this week and now I just need to find parts to populate it (a simple task, right?); I'm hoping to use it with my negibus PDP-8/I for my ongoing TSS/8 project(*) (in order to provide numerous serial lines and if I get really ambitious/lucky, an RK05). It looks like I need an M7101 and four M7103's. I intend to build the cabling myself unless anyone has a set of single-to-Y (BC08D) I/O cabling. Also on the hunt for a chassis to put these in; this is identical to the one used for the PDP-8f/m (but sans blinkenlights). Thanks! - Josh (*) RF08 restoration is underway and emulation of multiple RS08s is in progress...

5 years

BA11 power filter

by steve＠cosam.org

After a few years in storage I'm finally getting to play with my PDP-11 stuff again. Figured I'd start small so rolled out the 11/23. PSU looks fine, pulled all the cards and checked voltages, no problem. Shortly after however, some magic smoke was released from the block in the back where AC comes in and the power switch is mounted. The only other thing in there is a big old line filter. Judging by the smell, I suspect a filter capacitor has given up the ghost. I'd check, but the whole thing is soldered shut so not exactly easily serviceable. Would I be correct in thinking such filters aren't entirely necessary and could just be bypassed? It looks like the manufacturer (JMK) is still going so a new replacement might not be out of the question. Whether I could find one with the same mounting holes etc. is another question I've not looked into yet. Cheers, Steve

5 years

VAXstation 4000/vlc mouse issue

by healyzh＠avanthar.com

I now have my VAXstation 4000/vlc up and running OpenVMS 7.3, DECnet Phase IV, and part of my cluster. It?s using a SCSI2SD v5.2 board for the hard drive. While have plenty of DEC Hard Drives, I like the lower noise, power, and heat of the SCSI2SD?s, plus I can really cram the disk space in there, this has a whopping 32GB. :-) I?m using a VSXXX-AA mouse (Hocky Puck), and when I use the middle-button on the mouse, it messes up DECwindows, and I?m no longer able to use the other buttons, which means I can?t change to another window, or access menus. It remains like this until I either logout, or reboot. Does this sound familiar to anyone? This is actually the first time I?ve used a VAXstation as a VAXstation, so I don?t know if this is normal (though I can?t imagine it is). Zane

5 years

H960 documentation

by jnc＠mercury.lcs.mit.edu

So, I have images of two different pieces of DEC documentation for the H960 series of racks/cabinets (the H950 is the bare rack; the H960 is the rack complete with various appurtenances such as side panel, stabilizer feet, etc). I had a request for them, so I've put them online. They are: http://ana-3.lcs.mit.edu/~jnc/tech/H960/DEC_cabinets1.jpg http://ana-3.lcs.mit.edu/~jnc/tech/H960/DEC_cabinets2.jpg The entry in the Direct Sales Catalog which covers them; includes illustrated breakdowns, and the DEC part numbers for everything. http://ana-3.lcs.mit.edu/~jnc/tech/H960/DECRackManual1.jpg http://ana-3.lcs.mit.edu/~jnc/tech/H960/DECRackManual2.jpg http://ana-3.lcs.mit.edu/~jnc/tech/H960/DECRackManual3.jpg http://ana-3.lcs.mit.edu/~jnc/tech/H960/DECRackManual4.jpg http://ana-3.lcs.mit.edu/~jnc/tech/H960/DECRackManual5.jpg The Assembly Guide; it shows in detail how all the bits go together (includes all the captive nuts, bolts, etc). Noel

5 years

MA8807A ic datasheet wanted

by ard.p850ug1＠gmail.com

OK, this is mildly off-topic... I am working on a piece of telecom-related test gear and there's one IC I can't find data on. It's a 40 pin DIL package made by GEC (the UK company), marked MA8807A. I thought at first it was a ULA, but I can find refeences to a 8bit * 8bit -> 16 bit multiplier with that number, so I guess that's it. But I can't find a datasheet or even a pinout. It may have appeared under the Plessey brand too, but I am not certain of that I've been along my bookshelves, looked in the obvious books on bitsavers etc and found nothing. Does anyone have any data on this chip? -tony

5 years

Cypher 68000/Z80 SBC, Motel Computers

by peter＠oneillassociates.com.au

While going through some boxes which have been unopened since my last move 15 years ago I found a Cypher 68000/Z80 single board computer by Motel Computers Ltd, Ontario Canada that I bought back in 1986. In another box I found some of the documentation. I'm hopeful of finding the manual and disks but they haven't turned up yet. Does anyone have the manual and disks for this board? Regards, Peter O'Neill

5 years

Fabritek logic trainers anyone have manuals for these? Anyone have one of these trainers besides us??

by couryhouse＠aol.com

Fabritek logic trainers? anyone have manuals for these? Anyone? have one of these trainers besides us??Ed at SMECC MUSEUM PROJECT? Sent from the all new AOL app for Android

5 years

how to make use of daisy wheel printer

by chris＠groessler.org

Hi all, what are the word processing options for a daisy wheel printer? I would like to be able to write "bold face" (double stroke) and underline some parts. I guess there aren't any other capabilities to exploit on a daisy wheel printer. Operating system is unixish (Linux/NetBSD/FreeBSD). MS-DOS would work, too. Maybe something like (g|t)roff? Is there something you'd recommend? regards, chris

5 years

COMPAQ ISA PC to ethernent

by rdawson16＠hotmail.com

If anyone has ideas about boards or software to connect this original Compaq to the net let me know! Browsing the ebay, I do not find a PC 8 bit ethernet board but still looking. Then, the rest, a net set of tools in source would be great.

5 years

MicroVAX 3300/3400

by healyzh＠avanthar.com

I?m still not 100% sure if this is a 3300 or a 3400. It?s in a BA400X chassis, and after looking at the manuals last night, it seems like it?s closer to the 3400. My familarity with Q-Bus MicroVAXen is limited to MicroVAX/VAXstation II?s, and a MicroVAX 3. After getting a power cable (the only one at PCH Cables was a 3? one, and I didn?t want to wait for more to come in), it powered right up, but is failing 4 tests. I quickly learned last night that ?TEST 9E? prints all the tests out to screen. This effort is making me wish I had a DEC LA50 plugged into the terminal. :-) It starts counting down diagnostics at ?41?. 27.. ?57 2 17 FF 00 0000 22.. ?C2 2 01 FF 00 0001 07.. ?5C 2 01 FF 00 0002 06.. ?5D 2 0B FF 00 0003 57 = SI_memory incr test_matter ***** C2 = SSC RAM ALL * 5C = SII_initiator ****** 5D = SII target ******* I think this is indicating issues with the DSSI interface. The system has two RF73 DSSI drives, which sound like they spin up. It also has a TK70 tape drive. It says it has 4MB and 16MB RAM, all good. One odd thing is that the KA640-A seems to plug into another board, before the DSSI drives. I?m getting ready to dig into that, and find out what that board is. Zane

5 years

How to read Osborne 1 Floppies?

by marvin＠west.net

Depending on when you need them, VCFMW is coming up in a few months. I have a number of Osborne 1's as well as a couple of 386 machines set up with Teledisk (I bought it *years* ago when it became available to listmembers), imagedisk, and *maybe* Dave Dunfields IMD(?). As VCFMW gets closer and you still need these floppies read, let me know and I'll put the machines in with the stash of "junque" to unload :). I *think* you are on the East coast, and it would surprise me if the RICM doesn't have working Osbornes. Marvin > Message: 3 > Date: Tue, 25 May 2021 10:37:03 -0700 > From: Zane Healy <healyzh at avanthar.com> > To: Fred Cisin <cisin at xenosoft.com>, "General Discussion: On-Topic and > Off-Topic Posts" <cctalk at classiccmp.org> > Subject: Re: How to read Osborne 1 Floppies? > Message-ID: <13B8E14A-BCAD-4A5B-B81A-7E6E6F373B6B at avanthar.com> > Content-Type: text/plain; charset=utf-8 > > Yes, we need to be able to access the files. > > I?m going to see if my old 486 will still boot up, I know I used to use it with imaging RX50 floppies. I?m not an x86 collector, so have a pretty limited selection of PC Hardware. I?m on my Sabbatical right now, so this request came in at a good time. Though first I have to finish up on some VAX and Alpha systems I?m working on, so as to free up space. That or finish a cleaning project in my office. :-) The cleaning project is needed to finish the VAX/Alpha projects? > > Is there any chances of reading these with Commodore 128 running CP/M, or a Kaypro 2? The Kaypro is definitely on my ?project list?, it worked last time I played with it. I *might* have a DEC Rainbow, or I might have given it away. If I do, I have no idea of its condition. An Apple //e would be another old system with 5.25? drives, but seems more unlikely. I might still have an old Kaypro PC, though it hasn?t been used since ?94 (and there is a good chance it went to LCM). > > My focus is DEC and Commodore, though I do have a lot of Apple // gear. > > Zane

5 years

cctalk Digest, Vol 80, Issue 24

by compoobah＠gmail.com

On Wed, 2021-05-26 at 12:00 -0500, cctalk-request at classiccmp.org wrote: > If you were to find an M7626 KA660 CPU you could do away with all of > the DSSI cabling between the CPU and the M9715 (in addition to having > a CPU that is around twice as fast). KA660/BA430 makes for a nice MicroVAX, had one for a while. You can even route the SCSI on the backplane as well, and the sleds pick up whichever you need. Too bad DSSI stuff either isn't more common or DEC found a way to route full cluster over SCSI, that was neat too (and faster than LAVAC for KA660). I seem to recall a highly opinionated VAX/BSD partisan also bestowed on it the rare (in his system) title of "real VAX" In the completely unrelated category my state has signs out asking us to "VAX up" which has me itching to get my VAXes out again. Sadly HP shut down the hobbyist license issuing before they got to my request :(.

5 years

How to read Osborne 1 Floppies?

by healyzh＠avanthar.com

A photographer I know contacted me last night asking about reading Osborne 1 floppies. What does it take to read these? The only Catweasel board I have is the old Zorro 2 board for the Amiga. I do have 5.25? floppy drives. Neither of us have an Osborne anymore (I think mine went to Jim Willing). Zane

5 years

IBM PC Network

by cctalk＠gtaylor.tnetconsulting.net

Q: Does anyone have any IBM PC Network hardware and / or software that they would be willing to part with? The recent "COMPAQ ISA PC to ethernet" thread got me thinking about IBM PC Network (and ARCnet) again. Sadly, Wikipedia's IBM PC Network article [1] is about the most concise / complete source of information that I've seen in the past. I'd like to learn more. I knew about the F connectors on coax cable, but was not aware of centralized device needed to do frequency translation. [1] https://en.wikipedia.org/wiki/IBM_PC_Network -- Grant. . . . unix || die

5 years

VAXstation 4000 Mice?

by healyzh＠avanthar.com

What sort of mice does a VAXstation 4000 (vlc/60/90) take? I?m pretty sure they don?t need a DEC ?hockey puck? mouse. I?m trying to get a VAXstation setup as? A VAXstation! I?ve always run them headless, usually with SBB?s in a BA353 or BA350. Zane

5 years

COMPAQ ISA PC to ethernent

by compoobah＠gmail.com

On Sun, 2021-05-23 at 12:00 -0500, cctalk-request at classiccmp.org wrote: > To: Grant Taylor <cctalk at gtaylor.tnetconsulting.net>, > ????????General at ezwind.net, Discussion at ezwind.net:On-Topic and Off- > Topic Posts > ????????<cctalk at classiccmp.org> > Subject: Re: COMPAQ ISA PC to ethernent > Message-ID: <60A9DFDE.9080300 at charter.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Grant and et al, > ???? I have several hundred MB and expansion cards from 30 years ago > up > to about 5 years ago. I would like to sell all of my computer > equipment. > Boards, cards, cables, covers, printers, monitors, computers. The > whole > works. > ???? I probably have cancer and if I do I am dead. i have been > selling > off everything that I own and I have been using the funds to drive > all > around the country full filling my bucket list. Please help me by > taking > everything off my hands? I still have two Simpson 260 VOMs that I > want > to see go to a good home instead of hitting the trash. > ???? Grant, Randy has not responded to me. Yes, I have Arcnet and > Ethernet ISA cards. What info do you need? > GOD Bless and Thanks, > rich! Man, that bites. Seen too many people I know die of cancer. Simpson meters are nice, and having an analog around is good, hope someone snags them. Too rich for my blood. Reminds me have a old NRI VTVM I need to get working, think I'm gonna try to wire in a 50B5 instead of the dead 50C5. FETVOMs interest me but don't see many of those around.

5 years

cctalk Digest, Vol 80, Issue 22

by compoobah＠gmail.com

On Mon, 2021-05-24 at 12:00 -0500, cctalk-request at classiccmp.org wrote: > Message: 25 > Date: Mon, 24 May 2021 09:24:22 -0700 > From: Jason Howe <jason at smbfc.net> > To: Chris Zach <cz at alembic.crystel.com>, "General Discussion: On- > Topic > ????????and Off-Topic Posts" <cctalk at classiccmp.org> > Subject: Re: Writings on AI from 17 years ago.... > Message-ID: > <e5a3d9aba75a6d0fbfb377372cf3f1a7d29fffde.camel at smbfc.net> > Content-Type: text/plain; charset="UTF-8" > > On Sun, 2021-05-23 at 21:34 -0400, Chris Zach via cctalk wrote: > > Anyone know if the LCM will be open > > > Considering there is no staff as they were all laid off and have now > all found other jobs, I'd guess that's a hard no.? They'd basically > need to spin up from 0 again -- considering Vulcan shut down LCM, > Cinerama and the Flying Heritage Museum as soon as they could after > Paul's death -- I put my money on asset dispersal, rather than > reopening. > > I say with a pit in my stomach as a former member and regular > visitor. > > EMP (or whatever the hell they're called now) survived because they > had > been spun off as a separate legal entity from Paul's Vulcan empire. > > > --Jason I fear so as well, but one of the other MS teachers in my district has done some remote training recently through them, so there might still be hope.

5 years

COMPAQ ISA PC to ethernent

by cctalk＠gtaylor.tnetconsulting.net

On 5/24/21 11:47 PM, Richard Pope wrote: > Grant, Hi Rich, > Did you receive my last email? Yes, I did receive it. I've not had an opportunity to reply to it. -- Grant. . . . unix || die

5 years

LCM

by jnc＠mercury.lcs.mit.edu

> From: Lars Brinkhoff > Chris Zach wrote: >> I'll drop by and see which CHAOSNet card it has. > It may have been removed when we worked on getting ITS booted. For a long time AI used a UNIBUS CHAOSNet card, plugged into an -11 connected up to AI via the Rubin 10-11 interface. (I'm not sure which -11; maybe the TV-11, but I think I remember there was another one used for the CHAOSNet? I think the same -11 that the AI Lab's 3-mbit Ethernet interface was plugged into. If I wasn't so lazy I'd look at TV > and see.) I'm not sure what happened after the Rubin interface died. Maybe they built another KA I/O bus interface (like the one on ML)? Config > might answer that question. Noel

5 years

Link Rot

by cctalk＠ibm51xx.net

Interesting article on Link Rot and its prevalence. According to the article even sources being referenced as early as 2018 have about a 60% Rot.I think all of us in this hobby can relate nor only to loss of articles but from sites, drivers, file repositories, etc....https://www.theverge.com/2021/5/21/22447690/link-rot-research-new-yo…

5 years

Old Mac IICX to give away in Los Angeles/Orange County.

by tosteve＠yahoo.com

Free Macintosh IICX in Orange County CA area. Sometimes it boots, often it doesn?t (power supply issue?). Also HD has stiction issues. Also the tall profile monitor has a very smeary image. Other than that, it?s great! Everything is included - computer with cover, keyboard, mouse, monitor.

5 years

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