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

by allisonp＠world.std.com

I have one and a complete board set for another. The PDT11/150 is the RX01 disk based version using the same board set, different roms and a RX01 compatable disk system. Both are kinda cute if only they were PDP11 in a tiny space back when useful systems were not small. (1980ish) Allison

26 years, 6 months

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Watch out! was: Re: Very Wierd someone is masquarading as the

by allisonp＠world.std.com

My mailer is only slightly dumber than Pine so that attachment was curious but otherwise meaningless to my Win3.1 system. Security by obscurity and narrow functionality. Allison

26 years, 6 months

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Need information.

by netsurfer_x1＠hotmail.com

I need info. on an unusual item I found at my High School: It apparently appears to be a dedicated word processing computer, what I have below is all I know about it (& it's not much either!). Manufacturer: Computype, Inc. Model: Compuedit Year: 1981 (?) If anybody can tell me anything about it, please reply on this board. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 6 months

2
1
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PDT-11?

by mbg＠world.std.com

>> the stuff ourselves(last 2 days)... I am not able to list contents yet >> but .. "TU-56 units a-plenty". I will post pictures soon. I guess I >> don't have to say a Christmas tree this year is simply out of the >> question now..... > >Much interest in getting one here. TU56's? Same here! Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 6 months

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19" racks available

by lemay＠cs.umn.edu

Someone called me to offer 2 19" full height racks. These are in minneapolis, on the loading dock of Riverplace, in Saint Anthony Main. They were asking to see if someone here atthe university would want them, but I rather doubt that anyone does. Especially considering how cold it is right now.. So, if you've been looking for a 19" rack to give as a Xmas present, and you're in the area... -Lawrence LeMay

26 years, 6 months

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MicroVAX 3100 update

by xds_sigma7＠hotmail.com

Hi, OK, so the MicroVAX is *still* not responding... I've at least ruled the power supply and the terminal and the terminal cables out however. I put the power supply from the functional VAXstation 3100 in the MicroVAX, hooked up the Wyse 50 I use with the VAXstation along with its DECConnect cable to the MicroVAX (BTW; I used the MicroVAX's manual to set up the VAXstation, therefore the cable must be plugged in properly), and turned the critter on... same results as before.. The console says "_~" and that is about it.. The manual talked about that possibly indicating a disk drive problem, but I tried it both with and without hard disk.. no dice. Any further ideas? Also, I'm going to be finally updating my website with *far* more Interdata/Perkin-Elmer/Concurrent info than anyone could possibly want, along with the same scope of Nova 1210 info, including the sheet on how to modify an ASR-33 with the DGC teletype interface board. Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 6 months

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8" drives and Compaticard / Uniform

by edick＠idcomm.com

I can't imagine what's stopping you from reading the diskette, except that I don't believe it helps you to have so many drive types present on the CompatiCard. Having sold mine, I can't reproduce your results. However, it's not a bad idea to read the first two tracks into memory if you can read anything at all, then try to correlate it with a known-good image of the BDOS and CCP. That will tell you about the sector skewing, etc. Some vendors number the sectors sequentially yet read them out of numerical sequence, in order to improve performance. Others write the sector numbers in the optimal arrangement, which is not in sequence from 0. One other gotcha is that some systems require that the first two tracks on the bootable diskette be single density, yet the rest can be double density.

26 years, 6 months

3
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Very Wierd someone is masquarading as the mail list?

by ndiablo＠diablonet.net

Yeah, I dont know what that was, but I got a mail from the same machine only in response to the "Toshiba T3100e/40" question... it included some DOS/Windows executable in attachment.. I'm running UNIX mail, so the whole conflagaration didnt hurt me much, though :) - Sean Caron (root(a)diablonet.net)

26 years, 6 months

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VAX 11/780 & LSI-11 console

by ndiablo＠diablonet.net

Well, there's a LSI-11 based PDP system (11/04, i think?) that served as the front-end processor for the system... Nothing really strange about them, besides that PDP sytems are really rather collectible in their own right. - Sean Caron (root(a)diablonet.net)

26 years, 6 months

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PDT-11?

by ndiablo＠diablonet.net

I think the PDT-11 was some sort of LSI-11 based "intelligent terminal".. I know someone else out there has one that they did a page on; you can find it at http://www.ultranet.com/~cfriend/museum/machines/pdt-11150.html -Sean Caron (root(a)diablonet.net)

26 years, 6 months

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Very Wierd someone is masquarading as the mail list?

by pete＠dunnington.u-net.com

On Dec 20, 11:17, Zane H. Healy wrote: > Has anyone gotten a eMail message that appears to have come from the > mailing list with the header "Re: Help identify a Control Data piece", Yes, but I'm using a Unix box so it wouldn't have hurt. Anyway, it's my habit to discard attachments wihout looking, unless I'm expecting something (and I'm sure I'm not the only listmember who does; those who regularly send 'multipart' message might think about that :-)) -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 6 months

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PDT-11?

by aek＠spies.com

"As I am damn near dead and *very* sick... and my family and I had to load the stuff ourselves(last 2 days)... I am not able to list contents yet but .. "TU-56 units a-plenty". I will post pictures soon. I guess I don't have to say a Christmas tree this year is simply out of the question now..... " As much as we love the preservation of old computers, the health of you and your family is more important. This stuff has been around for decades, take a break, enjoy the holidays, and get back to all of this when you're feeling better. --al

26 years, 6 months

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PDT-11?

by dylanb＠sympatico.ca

What is a PDT-11? I just got one new in the box with 7,000+ pounds of other brand new (1965-1978) dec stuff. It has two TU-60s and looks like a VT100. As I am damn near dead and *very* sick... and my family and I had to load the stuff ourselves(last 2 days)... I am not able to list contents yet but .. "TU-56 units a-plenty". I will post pictures soon. I guess I don't have to say a Christmas tree this year is simply out of the question now..... [will be back online in a day or so when we get the trucks unloaded] john PDP-8 and other rare mini computers http://www.pdp8.com -----Original Message----- From: Eric Smith <eric(a)brouhaha.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Sunday, December 19, 1999 4:19 PM Subject: Re: DECNA / Transciever question >Tony writes about the innards of 10-base-2 Ethernet transceivers: >> The power supply comes from an isolated DC-DC >> converter in the transceiver case which takes in 12V from the computer >> and gives out -9V for the transceiver chip. > >I'm not sure about separate transceivers, but the ones integrated on >NIC cards for PCs often used a little non-potted four-pin DC-DC converter >module made by TDK. At a guess, it's about 20 mm by 10 mm. I've successfully >kludged them onto boards that were designed for the potted module style. > >Anyhow, I have a lifetime supply of NOS of these TDK converters, so I could >sell some cheap or trade them for other small stuff. > >Eric >

26 years, 6 months

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uVAX serial "dongle"

by ethan_dicks＠yahoo.com

--- allisonp(a)world.std.com wrote: > Well, I did say if no one else wants it... > > Allison You did, but you also spoke up first (at least as far as I can tell). If it's not a problem, I do want it. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 6 months

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Commodore computer equipment in pristine condition

by relayer＠dotplanet.com

OK. Who's running MS Outlook???? This file screams of being a virus or trojan horse

26 years, 6 months

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uVAX serial "dongle"

by ethan_dicks＠yahoo.com

--- Dann Lunsford <dann(a)greycat.com> wrote: > I was looking through my junque box for a cable... > It came, if memory serves, from a uVAX 2000... P/N 70-23766... > I remember plugging these into the uVAX to get three terminal ports. > Anyway, if anyone wants it, ask. Allison beat me to it, or I'd ask. I have several uVAX-2000's and only one of the converters. While we're on this, does anyone else have a problem with broken jack screws on these? Mine came with the threads busted off inside the motherboard, and it's not the only one I've seen in that condition. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com

26 years, 6 months

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uVAX serial "dongle"

by dann＠greycat.com

I was looking through my junque box for a cable and found a little device I have no use for, but thought someone here might. It came, if memory serves, from a uVAX 2000. Has a 15-pin D-shell and 9-pin D-shell on one end, both female, and three female MMJ connectors on the other. There's a label that looks like: P/N 70-23766 VAR 01-A1 TN EE917 I remember plugging these into the uVAX to get three terminal ports. Anyway, if anyone wants it, ask. Shipping only, Thing is about 3.5 in. square by 1 in. thick, real light, so it won't be that much. Or if you're in the Sacramento, CA, USA area, you can drop by and pick it up. -- Dann Lunsford The only thing necessary for the triumph of evil dann(a)greycat.com is that men of good will do nothing. -- Cicero

26 years, 6 months

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PDT-11?

by mbg＠world.std.com

>What is a PDT-11? I just got one new in the box with 7,000+ pounds of >other brand new (1965-1978) dec stuff. > >It has two TU-60s and looks like a VT100. What you have is a PDT-11/130. The tapes are TU58s, not TU60s. The PDT series is based on the LSI-11/2 chip set. The systems typically have a console port, printer port, async/sync comm port and three other serial ports. They are setup so that you can use 60 Kb of memory instead of the typical (for -11s) 56Kb (smaller I/O page). Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 6 months

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11/44 Expansion chassis

by xds_sigma7＠hotmail.com

John, I forgot to tell you, but if you need a PDP-11/44 User's Guide and PDP-11/44 System Technical Manual, I have both and would gladly provide them to you, as you actually *have* an 11/44. Let me know what other manuals you need and I'll keep my eyes out. Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 6 months

1
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Cadigital & 8" drives (was: Re: )

by edick＠idcomm.com

I've essentially given away (for $5 a crack) a couple of dozen Shugart and Siemens Single-Sided drives after aligning and otherwise cleaning and repairing the things that seemed necessary. When I offered these drives here, last June, there were no takers. Apparently the packing and shipping costs, which I'd had quoted for me at Mailboxes, etc, were too much for the folks on the list. It's too late now, of course. Dick -----Original Message----- From: Arfon Gryffydd <arfonrg(a)texas.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Monday, December 13, 1999 12:49 PM Subject: Cadigital & 8" drives (was: Re: ) >I need a Shugart 800/801 (or two)... Is this what people are looking to >bulk buy? > >A > >>> >>> Still a reliable surplus vendor, incidentally: >>> >>> http://www.cadigital.com/ >>> >>> Perhaps the best-known NOS selection of 8" floppy drives anywhere in >the >>> >>> world, as well as 8" media and cleaning kits. >>> >> Some of the prices don't look like they have been updated in a decade >>> >> though, 2 MB ram simms for $59 etc. >> >>> >With most surplus vendors, I've had very good luck with bargaining >>> >on items having obviously outdated posted prices. But make a reasonable >>> >offer, not a really lowball one, or they'll not bother to talk to you. >> >>> Or a quantity offer... If you buy 3 at a reasonable offer instead of just >>> 1, they're much more willing to take the deal. >> >>> Maybe if anyone wants a Dragon we should coordinate it here first, then >>> just make a bulk purchase?!?!? >> >>Well, I volounteer (sp?), since I'm about to buy some. >>Any wishes ? > >---------------------------------------- > Tired of Micro$oft??? > > Move up to a REAL OS... >######__ __ ____ __ __ _ __ # >#####/ / / / / __ | / / / / | |/ /## >####/ / / / / / / / / / / / | /### >###/ /__ / / / / / / / /_/ / / |#### >##/____/ /_/ /_/ /_/ /_____/ /_/|_|#### ># ###### > ("LINUX" for those of you > without fixed-width fonts) >---------------------------------------- >Be a Slacker! http://www.slackware.com > >Slackware Mailing List: >http://www.digitalslackers.net/linux/list.html

26 years, 6 months

4
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DEQNA / Transciever update

by healyzh＠aracnet.com

Well, I didn't feel like fighting Christmas traffic so I stole a fuse from the /73 I'm not using at the moment, plugged in a 10BaseT transciever and everything worked just fine. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 6 months

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DECNA / Transciever question

by healyzh＠aracnet.com

Not a good day, was working on my PDP-11/73 this morning, FTPing some files to it, and then I shut it down for a few hours while I worked on other stuff. Came back finally, turned it on and the EQ.SYS wouldn't load. More investigation shows I'd apparently smoked a Transceiver, and blown the fuse on DECNA Cab Kit. So did the Transceiver take out the fuse? I assume so, the three LED's are lit on the DECNA, but what little doc's I've found on the card doesn't tell me if that is good or bad. The transceiver definitly has a smokey smell to it. Now why on earth would a transciever blow? Also does anyone know what the LED's on the DECNA mean? BTW, it was a 10Base2 Transciever, the last 10Base2 system on my home network. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 6 months

3
3
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uVAX 3+ (KA655) problem?

by eric＠brouhaha.com

I upgraded my uVAX II to a III+ (by installing a KA655 CPU and three MS650 16M RAM boards. It passes the self test and gives me a command prompt: KA655-B V5.3, VMB 2.7 Performing normal system tests. 40..39..38..37..36..35..34..33..32..31..30..29..28..27..26..25.. 24..23..22..21..20..19..18..17..16..15..14..13..12..11..10..09.. 08..07..06..05..04..03.. Tests completed. >>> I can issue simple commands, although at the moment I don't have a bootable disk. I'm trying to get set up to boot over Ethernet from a MOP software on a Linux box. What worries me is that if I just leave it sitting at that prompt, after a few minutes it seems to reboot, printing the banner and running the tests again. Have I got a bad KA655, or is it supposed to do that? More details are below, in case it helps. What the heck does UQSSP stand for, anyhow? Anyone have a spare copy of EK-KA655-TM? Thanks! Eric >>>show memory /full Memory 0: 00000000 to 00FFFFFF, 16MB, 0 bad pages Memory 1: 01000000 to 01FFFFFF, 16MB, 0 bad pages Memory 2: 02000000 to 02FFFFFF, 16MB, 0 bad pages Total of 48MB, 0 bad pages, 120 reserved pages Memory Bitmap -02FF1000 to 02FF3FFF, 24 pages Console Scratch Area -02FF4000 to 02FF7FFF, 32 pages Qbus Map -02FF8000 to 02FFFFFF, 64 pages >>>show qbus Scan of Qbus I/O Space -20001468 (772150) = 4000 (154) RQDX3/KDA50/RRD50/RQC25/KFQSA-DISK -2000146A (772152) = 0B40 -20001930 (774460) = FF08 (300) DELQA/DEQNA/DESQA -20001932 (774462) = FF00 -20001934 (774464) = FF2B -20001936 (774466) = FF0A -20001938 (774470) = FF10 -2000193A (774472) = FF95 -2000193C (774474) = 0000 -2000193E (774476) = 0030 -20001940 (774500) = 0000 (260) TQK50/TQK70/TU81E/RV20/KFQSA-TAPE -20001942 (774502) = 0BC0 -20001F40 (777500) = 0020 (004) IPCR >>>show devices UQSSP Disk Controller 0 (772150) -DUA0 (RD54) UQSSP Tape Controller 0 (774500) Ethernet Adapter 1 (774460) -XQB0 (08-00-2B-0A-10-95) >>>show uqssp UQSSP Disk Controller 0 (772150) -DUA0 (RD54) UQSSP Tape Controller 0 (774500)

26 years, 6 months

3
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DECNA / Transciever question

by mbg＠world.std.com

>Do you mean DECNA? Or DEQNA? The latter is a Q-bus serial card, and I >forget what the former is? DECNA is for the PRO3xx series... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 6 months

2
1
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11/44 Expansion chassis

by jpl15＠netcom.com

I'm thinking that it would be Fun to have another Unibus chassis on my 11/44 system, the better to hang some more peripherals from. The current machine is stuffed like an Xmas turkey, and I would rather not run the old power supplies our near their design limits all the time. I have several old 11/34a boxen lying under my (inacessable) workbench. I got to wondering what would be involved in using one of them for the Purpose. I somewhere dimly recall that the interface cable for RK05 devices is in fact a Unibus jumper cable, but that could be an optimistic imagination. I've got a couple of those idle. Does anyone have any experience or thoughts about adding another chassis to an 11/44 system? [ Easy? Can o' Worms? Don't even *think* about it? ] FWIW, I *do* have several (4) 11/44 boxes, but I'd like to save them for spares in case the main box woofs it's cookies. The 11/34a stuff is much better, if its feasible. Cheers John

26 years, 6 months

3
2
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NRI computer

by jimw＠agora.rdrop.com

Can anyone help this lady with some information on this device? She is not on the list, so please at least copy her directly on any replies. -jim ---------------------------------------------------------------------- >From: "Rosiecat" <rosiecat(a)mediaone.net> >To: <jimw(a)agora.rdrop.com> >Subject: NRI computer >Date: Sat, 18 Dec 1999 14:25:51 -0800 >X-MSMail-Priority: Normal >X-Mailer: Microsoft Outlook Express 5.00.2919.6600 >X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 > >Hello, >I found this old computer in a thrift store and was wondering if >you have any info re: "National Radio Institute Model 832 Digital >Computer". It measures 22 1/4" wide and 15"deep and appears to >look about circa 1970s. It has no ports at all any an electrical >plug. There are 128 switches under a broad category marked >"Computer Memory", all numbered switches 1-9, and A-F.. The >switches work and the lights work. There is even an Accumulator >category, a 7 switch "Register" set, Display/Speed/Clock switches >and more. Can you give any information as to what this is. > >Regards, > >Donna Fuller ---------------------------------------------------------------------- --- jimw(a)computergarage.org The Computer Garage - http://www.computergarage.org Computer Garage Fax - (503) 646-0174

26 years, 6 months

5
4
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uVAX 3+ (KA655) problem?

by CLASSICCMP＠trailing-edge.com

>At 10:19 AM 12/19/99 -0500, Megan wrote: >>Check the settings of the DEQNA... it has a setting which allows it >>to reboot the machine if it doesn't receive traffic within a certain >>amount of time. > >No way! Really? Is this true of the DELQA as well? How would one go about >figuring that out? > >--Chuck On the DEQNA, the sanity timer jumper is W3, located below the Boot/Diag ROM near the board handles.

26 years, 6 months

1
0
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Toshiba 3100e -- Thanks

by nerdware＠laidbak.com

Thanks for the answers--- yep, that's what I've got. I love those old orange plasma screens. Nice and crisp, even when older. I'll try to set up some 720k Dos disks and see what's up. Mine are hard- drive-less, either because they came that way or they drives were just yanked and thrown out when they were retired. My first exposure to a plasma screen was back in '79 when I was visiting the University of Illinois to see if I wanted to go there, and they had the Plato terminals all over campus. IIRC, the displays on the Plato's also doubled as a rear-projection screen for slides and were touch-sensitive. Pretty cool for '78-79...... I'm also getting an old Zenith portable from the same era. Don't know if it works yet -- needs 12vdc but the polarity isn't listed, so I'm a little hesitant to just shoot it some juice. I don't know if they were smart enough to put diodes on the input to block reverse dc or not.... The Zenith has two 3.5" floppies that pop up from the area just above the keyboard, kinda like an IBM. When I get the case open and determine polarity, I'll see if it works. Paul Braun NerdWare -- The History of the PC and the Nerds who brought it to you. nerdware(a)laidbak.com www.laidbak.com/nerdware

26 years, 6 months

2
1
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Need info on a Toshiba 3100e/40

by nerdware＠laidbak.com

I was just given a 3100e/40 "laptop". It powers up, screen works, goes through bios and then asks for a boot disk. The expansion bay is empty, which is where I assume the hd goes. I tried booting from a DOS 6.22 disk, but it couldn't recognize it. I'm guessing that it's not a 1.44mb drive.....800k perhaps? (It's 3.5") What version of DOS is the latest supported? I would also like any info on the processor, etc. The little beast has one whole meg of ram, so this is truly a power machine......remember when you could fit a word processor into 64k of ram along with Basic? Also, what kind of hd does it support? I'm guessing I'll have to track down a proprietary drive carrier, but does it use ide or is it mfm/rll? Thanks. Paul Braun NerdWare -- The History of the PC and the Nerds who brought it to you. nerdware(a)laidbak.com www.laidbak.com/nerdware

26 years, 6 months

2
1
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DECNA / Transciever question

by pete＠dunnington.u-net.com

On Dec 18, 23:05, Zane H. Healy wrote: > Not a good day, was working on my PDP-11/73 this morning, > investigation shows I'd apparently smoked a Transceiver, and blown the > fuse on DECNA Cab Kit. I have days like that... I seem to have an unfair share recently :-( > So did the Transceiver take out the fuse? I assume so, the three LED's are > lit on the DECNA, but what little doc's I've found on the card doesn't tell > me if that is good or bad. The transceiver definitly has a smokey smell to > it. I don't know what the lights mean, but I've seen transceivers on Suns take out the corresponding fuse. I'd remove the transceiver, replace the fuse, and see if the voltage on the AUI connector is OK. Pins 1,4,6,8,11 should be ground, and pin 13 should be +12V. > Now why on earth would a transciever blow? Possibly a short on the cable, but usually it's caused by surges (eg due to induced current from a nearby lightning strike). -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 6 months

1
0
0 0

What's this???

by pete＠dunnington.u-net.com

On Dec 18, 21:39, Richard Erlacher wrote: > I've got a mystery before me . . . there's a component, probably a 64Kx8 > SRAM but, who knows? I can't find a lead on the manufacturer or whatever. > The part's numbered GLT751208-15 and four of them comprised the data cache > on an old '486 motherboard climing to have 256KB of cache. That, combined > with the number of the part, 512 for the number of k-bits and 08 for the > data width . . . looks right, but I haven't seen a data sheet for a 64kByte > Sram in a 32-pin package. All the ones I've seen are 128kByte parts. That's my experience, too. Looking through my pile of early-90's memory data books, I couldn't find that number listed. However, I found a couple of 32-pin SOP devices made by Samsung that are 64K x 8: the KM68512 is 32-pin 64K x 8. It has the same pinout as the more common 32K x 8 28-pin cache SRAM devices, except that pin 30 is an active-high CS (that would be pin 28, Vcc, on most 28-pin 32K x 8 devices), pin 31 is A15 (the extra address line), pin 32 is Vcc, and pins 1, 2 are N.C. (pin would be A16 on a 128k x 8 device). Apart from the NC on pin 2, that would make it the same pinout as the common 128k x 8 devices. Incidentally, although the Samsung book lists lots of other manufaturer's equivalents for nearly all their devices, there are none listed for the KM68512. It's obviously not a common configuration! FWIW, several motherboards did use 4 chips rather than 8 for certain cache sizes (mine uses 4 off KM681001 for 512K x 8 cache). There are a few other devices that might fit the description, except that they are BiCMOS centre-power devices (Vss and Vcc are in the middle of the sides, not at the corners). It's very unlikely that any motherboard used such chips for cache, I think. Check where the 5V connection goes, and if it's on pin 32 (and possibly pin 28), I'd assume it's the "normal" pinout, and similar to the KM68512 I found. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 6 months

1
0
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NRI computer

by ddameron＠earthlink.net

At 11:14 PM 12/18/99 -0800, Rosiecat wrote: >Hi Dave, Jim and all, > >Thanks for the reply and the information. Is this item worth >anything(monetarily)? Or would it just look cool on display. >Gotta love the internet I would of had to do mega research to >find any info. > >Thanks again, >Donna It sold then for about $500. Now I'd say it would be great on display! -Dave

26 years, 6 months

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HW address of Sun 3/60

by a2k＠one.net

I have a Sun 3/60 I'm trying to netboot. For rarp I need to know the ethernet address of the 3/60. I don't have a console but I have a terminal on the serial port so I can get to the boot monitor. Thanks, Kevin ------------------------------------------------------------------------------- "It's you isn't it? THE BASTARD OPERATOR FROM HELL!" "In the flesh, on the phone and in your account..." -- BOFH #3

26 years, 6 months

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Need info on a Toshiba 3100e/40

by ndiablo＠diablonet.net

I dont know if you're talking about the T3100 (gas plasma screen, etc) but the model number you mentioned sounds kind of similar so I'll spout off the information just in case :) The T3100 is a 80286 (at 8mhz, software switchable to 4) with a gas plasma screen, so no batteries here :) Mine had 640k of RAM and i'm not sure if it was expandable, so perhaps we're talking about different machines. It did indeed have a 720k floppy drive, so you'll have to either transfer any software you want to run to 720k disks or ruin some 1.44 disks :) It will run pretty much any version of DOS out there up to 6.22. Mine had a 20 megabyte hard disk that I suspect was MFM, but the connector is a proprietary compressed connector with 20 pins or so (can't quite remember exactly). Hope this helps (if you've actually got a T3100) :) -Sean Caron (root(a)diablonet.net)

26 years, 6 months

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What's this???

by edick＠idcomm.com

I've got a mystery before me . . . there's a component, probably a 64Kx8 SRAM but, who knows? I can't find a lead on the manufacturer or whatever. The part's numbered GLT751208-15 and four of them comprised the data cache on an old '486 motherboard climing to have 256KB of cache. That, combined with the number of the part, 512 for the number of k-bits and 08 for the data width . . . looks right, but I haven't seen a data sheet for a 64kByte Sram in a 32-pin package. All the ones I've seen are 128kByte parts. As it stands, I'm inclined to wire one of these as the memory on an 8-bitter. Any inputs? thanx Dick

26 years, 6 months

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WQESD Switch Settings

by brian＠sigh.mse.jhu.edu

Hi -- Could somebody supply me with the switch settings for a Webster WQESD/04? Many thanks. -- Brian -- Brian Harrington Digital Knowledge Center Johns Hopkins University brian(a)sigh.mse.jhu.edu

26 years, 6 months

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More eBay rambling, and the human factor

by SeaMasterZ＠aol.com

What I have heard is that the human brain can process between a dozen and two dozen "transactions" per second. But ... (sputter, sputter) ... so a 286 computer is BLAZINGLY fast by comparison ... wait, doesn't the human brain process vast amounts of info? The human body is an absolute marvel as a chemical plant; all those levels have to require tremendous amounts of monitoring and adjustment? I guess I am confused on the issue of scope versus speed ... so a brain could be considered to be parallel on a massive scale then, whereas is a computer is serial; brain: millions of things done slowly, computer one thing done with blinding speed ... am I way off base or onto something??? Ray Cook PS Sorry, its post finals excessive thought disorder; everything is fried but it wont shut down!!!

26 years, 6 months

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The joke is on (Apple1)

by dylanb＠sympatico.ca

It's the *same* guy... and yes, it still does not work. john PDP-8 and other rare mini computers http://www.pdp8.com -----Original Message----- From: Hans Franke <Hans.Franke(a)mch20.sbs.de> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, December 17, 1999 8:57 AM Subject: The joke is on (Apple1) >Another Jerk found his way - you may remember the guy who had anounced >his Apple 1 auction for Dec.1 ? now he is on ... and he didn't change >his hype making rubbish ... I belive he never used this computer, otherwise >he must know a bit more math :) > >http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=221015464 > >Servus >Hans > >-- >Der Kopf ist auch nur ein Auswuchs wie der kleine Zeh. >H.Achternbusch >

26 years, 6 months

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pdp11.org now open

by mrbill＠mrbill.net

(as soon as Internic adds it to the database; until then, you can reach the page at http://pdp11.workstations.org) I've registered (yay!) and created www.pdp11.org. I'm aiming to create an informational resource page for all makes and models of PDP-11s, similar to my (very popular) effort for Sun Microsystems computers at http://www.sunhelp.org. I've got a very small collection of links up currently, and will be adding more in the next few days as I work on the page. If anyone has contributions that they would like to see listed, please email me at mrbill(a)mrbill.net, and I'll see that they get there ASAP. On another note, I'm still looking for a PDP-11 system of my own; I'm not picky about model. If you've got one for sale, please let me know; I've got a VT102 in the garage that's just begging to be used as a console. 8-) Bill -- Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net mrbill(a)sunhelp.org / http://www.sunhelp.org --------------------------------------------------------------------- "Fear leads to anger. Anger leads to hate. Hate leads to using Windows NT for mission-critical applications." -- What Yoda *meant* to say

26 years, 6 months

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PDP-? Backplane

by allisonp＠world.std.com

<I'm a bit perplexed by this ad, mostly because I'm not a PDP person.. <though I would very much like to be. On You ought to be. <http://www.cadigital.com/enclosur.htm it reads: < <Digital Equiptment Q-bus BackPlane for PDP-8 <$9 PDP-8 is OmniBus, never used Qbus! Qbus is PDP11. <PDP 11/23 four slot dual height backplace, DEC model H9281, designed for <use in all kinds of DEV Q-Bus systems. < <got me. But whatever it is, $9 sounds like a low price.. It's the four slot out of a BA11box. It Q-18 and useful for only the very smallest systems. $9 it's either expensive and useless or if you need one a good deal. Allison

26 years, 6 months

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Boot UNIX V7 disk images on Supnik's PDP-11 emulator?

by aek＠spies.com

"PDP-11 simulator V2.3d sim> attach rl0 unix_v7_rl.dsk sim> b rl0 @ And thats as far as I get... anything just gives me back the @ prompt (ODT?). " first stage bootstrap. it's waiting for you to type a file to boot from someone REALLY needs to write up a FAQ for the simulator.

26 years, 6 months

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WTD: RK05 rails

by wrking＠tsoft.com

Anyone know of a source for RK05 mounting rails? I'm in need of four sets (cabinet side only). I've got to get the drives off my garage floor before I'm allowed to get any more stuff. Thanks, Bill

26 years, 6 months

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Boot UNIX V7 disk images on Supnik's PDP-11 emulator?

by mrbill＠mrbill.net

I have hardly ANY docs, so if someone could point me in an appropriate direction I'd be grateful. I'm trying to boot UNIX V7 off the disk images provided with Bob Supnik's excellent PDP-11 emulator, running on my Ultra 5 under Solaris (compiled with egcs/gcc): -rwxr-xr-x 1 mrbill other 222192 Dec 18 03:45 pdp11 -rw-r--r-- 1 mrbill other 2048512 May 15 1998 unix_v7_rk.dsk -rw-r--r-- 1 mrbill other 10485760 May 27 1998 unix_v7_rl.dsk bash-2.03$ ./pdp11 PDP-11 simulator V2.3d sim> attach rl0 unix_v7_rl.dsk sim> b rl0 @ And thats as far as I get... anything just gives me back the @ prompt (ODT?). Thanks for any help. Bill -- Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net mrbill(a)sunhelp.org / http://www.sunhelp.org --------------------------------------------------------------------- "Fear leads to anger. Anger leads to hate. Hate leads to using Windows NT for mission-critical applications." -- What Yoda *meant* to say

26 years, 6 months

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about olivetti's m290

by robwill2＠wxs.nl

Hi group, As an 'old computer owner' (besides more modern ones), who has an original (?) OLIVETTI M290 desktop computer, i am searching for the 2 floppy disks that belong to this type of machine: 1. the disk 'keyboard drivers & utilities' 2. the disk 'customer test' (which has the 'system setup' utility on it... Does any of you have a copy of these disks available?? Or, does anyone know where to get them from the net?? Thanks for solutions! See you, Robert robwill2(a)wxs.nl

26 years, 6 months

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Well it lives again, sorta. (YAV)

by cmcmanis＠mcmanis.com

Yet-another-VAX has been restored to almost operating condition :-) Thanks everyone on the backplane, I didn't have the emply slot it just looked like it shipped that way given the description in the Module Database book. I put in the minimum system (CPU, Memory, DELQA) and that booted, then I swapped out the CPU for a KA655 I had handy and used it to probe around. So far so good, then installed the Dilog drive card, that was recognized after I correctly oriented the 34pin cable (it was one of those "rainbow" cables and neither polarized nor marked vis-a-vis pin 1. That got me the drive to be visible, which, when I tried booting it, started loading VMS 5.4, and I foolishly told it what the date was and it explained that my license for VMS was expired. Not a problem with my handy dandy License PAK from DECUS, but then I tried to bring up the TK50 that I added to the system I disassembled enough to route the cable. Installed the M7546 and the TK50 Powered on and did a SHOW DEV and it showed up. Then I put in a TK50 cartridge, and got nothing but blink. -- Can't get the tape out (without disasembly) -- Now the show dev doesn't show the tape! (the card shows up but it hangs trying to talk to MUA0. (sigh) The ethernet works however. Next step will be to netboot it into VMS or NetBSD. Note to Eric Smith: You can't get the serial console to work with the VCB02, period. Its got a couple of 16MB cards in it so it is a pretty sweet machine at the moment. If I can't resuscitate the TK50 I'll put a TQK70 and TK70 in there instead. Its a much more reliable drive anyway. I'm also trying to construct a sort of qbus extender with a couple of Qbus slots on the outside for doing board testing. --Chuck

26 years, 6 months

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PDP-? Backplane

by a2k＠one.net

I'm a bit perplexed by this ad, mostly because I'm not a PDP person.. though I would very much like to be. On http://www.cadigital.com/enclosur.htm it reads: Digital Equiptment Q-bus BackPlane for PDP-8 $9 PDP 11/23 four slot dual height backplace, DEC model H9281, designed for use in all kinds of DEV Q-Bus systems. got me. But whatever it is, $9 sounds like a low price.. Kevin ------------------------------------------------------------------------------- "It's you isn't it? THE BASTARD OPERATOR FROM HELL!" "In the flesh, on the phone and in your account..." -- BOFH #3

26 years, 6 months

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Control Data tape cleaner attn: Eric Smith

by nerdware＠laidbak.com

Thanks to everyone who responded. It would appear that my friend does in fact have a tape cleaner. Next question: Does anyone need it? If so, email me off-list and I'll find out what he wants for it. Thanks. Paul Braun NerdWare -- The History of the PC and the Nerds who brought it to you. nerdware(a)laidbak.com www.laidbak.com/nerdware

26 years, 6 months

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Boot UNIX V7 disk images on Supnik's PDP-11 emulator?

by classiccmp＠mrynet.com

> I have hardly ANY docs, so if someone could point me in an appropriate > direction I'd be grateful. > > I'm trying to boot UNIX V7 off the disk images provided with Bob Supnik's > excellent PDP-11 emulator, running on my Ultra 5 under Solaris (compiled > with egcs/gcc): > > -rwxr-xr-x 1 mrbill other 222192 Dec 18 03:45 pdp11 > -rw-r--r-- 1 mrbill other 2048512 May 15 1998 unix_v7_rk.dsk > -rw-r--r-- 1 mrbill other 10485760 May 27 1998 unix_v7_rl.dsk > > bash-2.03$ ./pdp11 > > PDP-11 simulator V2.3d > sim> attach rl0 unix_v7_rl.dsk > sim> b rl0 > @ > > And thats as far as I get... anything just gives me back the @ > prompt (ODT?). > > Thanks for any help. > > Bill > > -- > Bill Bradford * mrbill(a)mrbill.net / http://www.mrbill.net > mrbill(a)sunhelp.org / http://www.sunhelp.org Following is a log of what to type at the "@" prompt: sim> b rl0 @r <---- Note: Once you make a typing mistake, you must restart. @boot e.g. It will ONLY return another @ for anything you type. @ <---- ^E typed to break to the simulator monitor Simulation stopped, PC: 157530 (BGE 157526) sim> b rl0 @boot <---- Start the boot program from the disk Boot : rl(0,0)unixnix <--- You may make corrections, etc, in this program unix not found : rl(0,0)unix mem = 205376 ... Hope that helps :) Regards, -Skots -- Scott G. Akmentins-Taylor InterNet: staylor(a)mrynet.com MRY Systems staylor(a)mrynet.lv (Skots Gregorijs Akmentins-Teilors -- just call me "Skots") ----- Labak miris neka sarkans -----

26 years, 6 months

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GridCase 3

by LFessen106＠aol.com

I recently came across a GRiDCase 3 laptop complete with MSDos 3.2 and Grid's own dos as well. This also came complete with 2 10 meg hard drives. My question is does anyone know of a way to disable the Grid-dos so that the computer automatically starts from the hard drive? I already know about pressing the "H" key at startup to accomplish this, but would like to have it start from "C" unattended since I am considering running a BBS for classic computer enthusiasts on this machine. Thanks for any help you may have to offer. -Linc.

26 years, 6 months

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H9278-A is this Q/CD or Q/Q

by CLASSICCMP＠trailing-edge.com

>The backplane is marked Micro-11 and H9278-A which is described as: > Q22 BUS BACKPLANE, 8 QUAD SLOTS > >Which sounds a whole lot like Q/CD all the way down to me. Anyone know for >sure? I'll be trying it out shortly so I may figure it out empirically. :-) You want to look at Micronote #5, "Q22 Compatible Options", for the straight scoop. If you want to look at it over the web, start at the Micronote index at http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/hardwar… In there you'll see the H9278 classified as Micro/PDP-11 H9278 4 X 3 Q22/CD and 4 X 5 Q22/Q22 Backplane In other words, this is your bog-standard BA23 backplane. The first three slots are CD, and the rest are serpentine. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 6 months

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