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

Computer collectors meeting in The Netherlands

by kees.stravers＠iae.nl

Just in case there are members of this list living in The Netherlands or Belgium that are not members of the Dutch Computer Collectors mailing list (cvml at egroups dot com) I'd like to announce here that the cvml list will have a meeting in Rotterdam on 17 february 2001. If possible, bring some nice old computers. The meeting is organized bij Stefan (stefan at softhome dot net) and Lino (pinoli at publishnet dot nl). A web page (in Dutch) describing the event is at http://www.xs4all.nl/~rimmer/cvml/cvml.html -- Kees Stravers - Geldrop, The Netherlands - kees.stravers(a)iae.nl http://www.iae.nl/users/pb0aia/ My home page (old computers,music,photography) http://www.vaxarchive.org/ Info on old DEC VAX computers Net-Tamer V 1.08.1 - Registered

25 years, 7 months

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OT: need AC adapter for OmniBook 4000

by ahm＠spies.com

(This doesn't meet the 10-year rule, but I've looked everywhere else) I'm in need of an AC adapter for a Hewlett-Packard OmniBook 4000CT laptop. I don't know the model number, but the machine takes 21VDC. (That's not a typo. It takes takes twenty one volts). If you have one to sell, please contact me off list. Thanks, Andy

25 years, 7 months

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pdp-11/23

by west＠jade.tseinc.com

I'm not interested in the 11/23, I have about 4 of those - but I would definitely be interested in the RL02 drive if no one owants it. Jay West

25 years, 7 months

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Altair Owners ...

by kapteynr＠cboe.com

Richard: The historically interesting thing about the ALTAIR has how insanely primitive it was when it became the sensation that sparked the PC revolution. Putting a disk on an ALTAIR is kind of cool, but it misses the point of how primitive they really were. Yes, parallel logic is much more consistent with the Altair era. My keyboard is 8-bit parallel, my paper tape reader is 8-bit parallel. The only common serial devices were Teletype machines (because of their evolution from the telegraph). Teletypes were the most common "terminal" in use back then. Not for me, though, I have a surplus, converted Friden Flexowriter, (or boat anchor), that we modified to be parallel. Do you even know what paper tape is ? I think that every ALTAIR had to deal with paper tape at some point. Magnetic media were too unreliable. I have a cute little optical paper tape reader that has a row of 9 LEDs and a corresponding row of photodiodes. It sends data as eight bits in parallel. There is a row of little holes in the third position that is normally intended to tractor the paper tape through a teletype machine. The optical paper tape reader uses this hole as a clock signal for software handshaking with the ALTAIR through a parallel port. To load BASIC, you entered a tiny loader program through the front panel switches. This program just looked for the tape reader's clock bit, delayed a little, then read the rest of the byte and stored it in memory. When you loaded Bill Gate's BASIC, the first data loaded was a more robust checksum loader. This loader quickly took control and if everything summed correctly after then rest of the tape was read, BASIC was running when you were done. By the way, in the beginning, ALTAIR BASIC WAS the "Operating System". Through PEEKs and POKEs executed from your BASIC programs, you could control all of your hardware. I also have a "VDM-1" video display card. We converted an old TV work with this. After BASIC was loaded, we add a "patch" for this through the front panel switches. That was another interesting thing about the ALTAIR, you could always take control of your computer through the front panel switches. There was no "reset" button to hit when your system crashed, your just went in and looked at what happened. Usually, you went to location 0 and hit "run" to get out of a crash. A "nasty" crash was when an loop overwrote your memory. This happened fairly often too. It was always kind of interesting to look at the patterns that appeared in the memory when these crashes occurred. I have always thought that if I wanted to be able to easily "boot" my ALTAIR to show it off, I would construct a box that would let me load and save my programs to a modern PC through this parallel port. Maybe just a BASIC stamp chip. I never kept up with disk controller technology I don't really know what a WD1002 is. Are your Altairs original or "B" models ? I hate to think that as an "original" Altair owner, I am, myself, a museum piece :-) I am only 39 years old. When I listen to the war stories of 80 year olds, I might think of THEM as museum pieces. -Rob -----Original Message----- From: Richard Erlacher [SMTP:edick@idcomm.com] Sent: Wednesday, January 03, 2001 6:16 PM To: classiccmp(a)classiccmp.org Subject: Re: Altair Owners ... Yeah ... I've got a copy of that MITS DISK BASIC lying about somewhere, though there's no documentation on hand. The deal is that (1) with one of my scrap S-100 PCB's hacked into a WD1K channel, the Altair can then talk to a WD1002-05 HD/FD Controller, as I'm putting in the MITS HDC box, and use that to operate the mix of 5-1/4" hard and floppy disks in the second box. It requires no S-100 FDC of any sort. Since BIOS code abounds for the WD controllers, I'd say it's not only a cool set of hardware, but a slick way to get the OS running if it's not already, and I do have HD drives in the form of a "back-end" driver, for the WD1K series, that can be autoloaded on boot if CP/M is already running. However, using a parallel port board would be more consisitent with what was done with the original Altair system: the one with the small desk built on the table-high rack with a desk extending to one side. It used a parallel port sort of thingie to talk to the SMD interface in the HDC box, and that, in turn, talked to the CDC HAWK drive in the top portion of the rack pedestal onto which the desktop was fitted. I could put in some sort of parallel port thingie, and 8255, or perhaps a pair of input ports and a pair of output ports, to provide the bits necessary to do the job. The channel interface is a lot slicker and faster, though, and TTL will drive the cable a lot better than an 8255. Either one will work, but I've no "feel" for what would be preferred by the typical Altair owner. Of course I'm particularly interested in placing this stuff with someone to whom an Altair isn't an Altair if any of the hardware doesn't say MITS on it, though only the boxes in this set are original MITS. Dick ----- Original Message ----- From: "ajp166" <ajp166(a)bellatlantic.net> To: <classiccmp(a)classiccmp.org> Sent: Wednesday, January 03, 2001 4:52 PM Subject: Re: Altair Owners ... > From: Rob Kapteyn <kapteynr(a)cboe.com> > > > >Hey wait a minute ... > >A BIOS on an Altair ? > > > >Sure there were add-ons (years later) that did this, but if you really > want authenticity this is what we did -- > > > >I always had to "boot" my Altair with a simple paper tape loader program > entered from the switches on > >front panel. I did this so many times, I had the 30 octal codes > memorized. > > > Often several times until it read the cassette correctly! Saving stuff > was easy though bets were > off if you could read it later. > > First homebrew board 8223 (x2 for 64 bytes plus 2 7489s for 16bytes of > scratch ram) prom boot! > > >Once I had Altair BASIC loaded, I generally kept the machine powered up > as long as possible. > > > Or until it crashed! > > >I never knew anyone who actually had a actual floppy for their Altair. > >I seem to remember that they cost more than the computer itself, and the > computer was quite >expensive --($2,000 1974 dollars). > > > I built and debugged two of them for others. > > Allison > >

25 years, 7 months

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Dilog SCSI controllers

by cmcmanis＠mcmanis.com

Ok, interesting question here, I now have both a Dilog 703 and a Dilog 706. The 703 is a TMSCP tape controller and the 706 is a MSCP disk controller. (at work I have a 736 that does both, but I don't think they are the same) The circuits are of course identical and I'm trying to figure out if Dilog used a PAL change like Viking did or just a firmware change between the two of them? If it is just firmware then perhaps I can help Ben turn his controller into a disk controller. --Chuck

25 years, 7 months

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and a LSI-11/23 Rescue in Portland, Oregon

by healyzh＠aracnet.com

I just got some further info on the VAX, and the PDP-11 that's available. I'd not mentioned the PDP-11 earlier as I was interested :^) VAX-11/750 w/4MB RAM and 134MB Drive LSI-11/23 w/Cypher Tape drive, two 8" floppies, and RL02 Turns out her Dad was the author of "Planet" (not sure on the spelling). It was some kind of computer based instruction software. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS 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/ |

25 years, 7 months

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VAX-11/750 Rescue in Portland, Oregon

by kees.stravers＠iae.nl

On 2001-01-04 classiccmp(a)classiccmp.org said to kees.stravers(a)iae.nl >I just found out about a VAX-11/750 that is apparently in the >Portland area that is in desparate need of Rescue. From talking to >the woman that's trying to take care of this for her parents, it >sounds like they'd like to get money or at least a tax credit for >this. It apparently includes software and documentation, and it is >supposed to be fully working. If you can't find anyone who ran rescue the entire machine, I would be very much interested in the cards that are in it. I want to revive my own 11/750, but it has only 5MB of memory so I am in need of more memory cards. The latest version of NetBSD doesn't really work well in 5MB anymore. Unfortunately I live in The Netherlands, so I can't come over to collect them :( Regards, Kees. -- Kees Stravers - Geldrop, The Netherlands - kees.stravers(a)iae.nl http://www.iae.nl/users/pb0aia/ My home page (old computers,music,photography) http://www.vaxarchive.org/ Info on old DEC VAX computers Net-Tamer V 1.08.1 - Registered

25 years, 7 months

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VAX-11/750 Rescue in Portland, Oregon

by healyzh＠aracnet.com

I just found out about a VAX-11/750 that is apparently in the Portland area that is in desparate need of Rescue. From talking to the woman that's trying to take care of this for her parents, it sounds like they'd like to get money or at least a tax credit for this. It apparently includes software and documentation, and it is supposed to be fully working. Now for the bad side, it's in a garage that has to be cleared out in a week because the house has been sold. I'd love to rescue this machine, but I don't have anywhere near enough room for it :^( Is there anyone in the area that can rescue it rather than seeing it scrapped? (I'm pretty sure that will be its fate as it was a scrapper that contacted me about it.) If possible I'll try to at least rescue software and doc's. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS 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/ |

25 years, 7 months

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Monitor help needed ( really WordPerfect 5.1 for DOS)

by mmcfadden＠cmh.edu

Bill Bradford <mrbill(a)mrbill.net> asked about WordPerfect 5.1 for DOS. We actually use it every day to transcribe all of our Radiology reports. The AIX based Radiology system we have only accepts transcription from WordPerfect 5.1. Two of our users run serial links to the AIX box to send in the WordPerfect files. We don't need anything but plain text and spell checking. It has worked flawlessly for the last 3 years I have been here. I probably actually have several copies of the software and manuals. Let me check if you really want a copy. Please contact me direct and we can work out mailing/shipping. Mike mmcfadden(a)cmh.edu

25 years, 7 months

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Tru64 Hobbyist Upgrades

by healyzh＠aracnet.com

OK, this is decidedly off-topic, however, it's likely to be of interest to some of the people here. I was looking for some info yesterday and discovered that Compaq now has Tru64 V5.1 available via the Tru64 hobbyist program for $100, or $40 for a upgrade from V5.0 or V5.0A (I didn't even know hobbyists could get V5.0A). Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS 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/ |

25 years, 7 months

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univac tape format

by gsc＠zip.com.au

>We have got some UNIVAC 9-tracks tapes we are trying to read. >(The tapes were written in 1982, so it is a possibility the data is lost. >Our UNIVAC 110xs are long gone.) First of all, you might want to try asking this question on the comp.sys.unisys newsgroup. If nothing else, you may find someone with the current version of these machines (Unisys 2200 or Unisys ClearPath IX) who can do the conversion for you. >What is the UNIVAC tape format? >(I have not found any info on the net yet) It depends on what's on the tape. The 1100 series are 36 bit machines. The usual tape format has two words packed into nine tape frames. MSB of the first frame would be the MSB of the first word, and LSB of the last frame would be the LSB of the second. (I think.) Text is usually encoded in ASCII, using nine bits per character. Text files are in a variable length record format, with a file header that starts with octal 50 in the high order six bits of the first word, and a record header word on each record. The actual text may be wrapped inside various levels of archive, but if you see long stretches of readable ASCII, you've found the actual meat. (There may also be some text encoded in an older six-bit character set. That seems a bit old-fashioned for 1982, but you never know.) Now for the good news. If the tape was _intended_ to be read by a non- Univac machine, then it may well have straight ASCII (or even EBCDIC) text recorded one character per frame with fixed length records. A dump of the first few blocks on the tape, as well as an idea of what sorts of block lengths there are on the rest of it, would be a great help in trying to guess the format. >We are trying to read it on a VMS system with 9-track TSZ07 streamer. >(TSZ07 is SCSI, 1600/6250 bpi. Suppose it is ANSI too) >Is the hardware compatible enough? Should be, assuming the tape is actually in one of those densities. Making sense of the contents may be harder. >If it is, how do I read it? (Got a Unix utility called copytape, so the >streamer may eventually be moved) I don't know of a Unix utility that can cope with all the variations of 1100 series tapes. The easy way is definitely to get someone with a compatible machine to read it. (Is your site still on speaking terms with Unisys?) The other option is to find out exactly what format your tape is in, and knock something together to read it. Sean Case

25 years, 7 months

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univac tape format

by roart＠nvg.ntnu.no

Hi We have got some UNIVAC 9-tracks tapes we are trying to read. (The tapes were written in 1982, so it is a possibility the data is lost. Our UNIVAC 110xs are long gone.) What is the UNIVAC tape format? (I have not found any info on the net yet) We are trying to read it on a VMS system with 9-track TSZ07 streamer. (TSZ07 is SCSI, 1600/6250 bpi. Suppose it is ANSI too) Is the hardware compatible enough? If it is, how do I read it? (Got a Unix utility called copytape, so the streamer may eventually be moved) (Another possibility is using a TU81+ streamer, ANSI, 1600/6500 bpi) Regards, Roar Thron?s

25 years, 7 months

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DEC find

by kd7bcy＠teleport.com

Wow! I hit gold! Wacky Willy's... I cleaned the Vaughn St. location of every DEC bit I could find. Here's what I found: M7606 AF, MicroVAX II w/1MB RAM and floating point 2x M7608 BC/BF, 4-Mbyte RAM for microVAX II (Q22-bus) M7164, Q-bus SDI disk adaptor, Q-22 (1 of 2)(what does that mean? Guess I need another board) M7516 YM, Ethernet interface (replaces DEQNA) - what do I need to hook it up? M3106, 4-line double-buffered async EIA MUX, with modem control; replaces M7957 - What do I do with this? It has a cable attachaed, p/n BC05L-03 3x M3104 DHV11, 8-line async DMA MUX M7551 CA, 4-Mbyte 22-bit parity/CSR MOS RAM (what will this work with?) M8053 MA, M8053 with DDCMP control ROM (point-to-point or multidrop) - huh? Non-DEC DEC stuff: Sigma Info Systems DZV11, some WDC chips on it and two 40-pin connectors Emulex TU0210401 National Semiconductor NS638 - tons of chips, looks like memory Now, what do I do with all this stuff? What will work with my 11/84 and how do I set it up? My 11/84 is bare right now - just CPU and some memory. I don't even remember what exactly is in there right now, I'll have to go check later. The MicroVAX II CPU was a surprise. Is there anything I can do with that? Anyone in the Portland, OR area (or other areas of OR/WA with a bit of planning) need any of this stuff or have something that I could use with it? Oh yeah - other finds at Wacky Willy's were still shrink-wrapped copies of DOS 6.21 and Windows 3.11, and a couple of 12v SLA batteries. -- /-----------------------------------------------\ | http://jrollins.tripod.com/ kd7bcy(a)teleport.com | | http://www.geocities.com/jrollins.geo/ | | List admin for orham and ham-mac at www.qth.net | | KD7BCY pdxham at www.egroups.com | \-----------------------------------------------/

25 years, 7 months

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need help identifying DEC card

by jeff.kaneko＠juno.com

If it's a q-bus board (four sets of fingers with a *metal* 'rail' running along the front) could be a 4MB 22-bit parity/CSR MOS RAM board for the 11/73 or 11/83 (if my source is correct). On Wed, 3 Jan 2001 19:35:56 -0500 "Compusync" <hsappleton(a)sprintmail.com> writes: > I just bought an item among a batch of other things. This particular > item I have no clue what it is, and it seems it may be a secret or > something...because there is no name. It is just a series of > numbers. The card measures around 10.5" x 9". Some of the numbers > that may aid in identifying it are: M7751, 5017547-01-D1-P2 and it > was made in Singapore. I am not sure I can send pictures on this > list, but if someone wants to help, I could send them a picture. > What is it and what is it used for. > > Headley ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 7 months

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need help identifying DEC card

by hsappleton＠sprintmail.com

I just bought an item among a batch of other things. This particular item I have no clue what it is, and it seems it may be a secret or something...because there is no name. It is just a series of numbers. The card measures around 10.5" x 9". Some of the numbers that may aid in identifying it are: M7751, 5017547-01-D1-P2 and it was made in Singapore. I am not sure I can send pictures on this list, but if someone wants to help, I could send them a picture. What is it and what is it used for. Headley

25 years, 7 months

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Altair Owners ...

by ajp166＠bellatlantic.net

From: Rob Kapteyn <kapteynr(a)cboe.com> >Hey wait a minute ... >A BIOS on an Altair ? > >Sure there were add-ons (years later) that did this, but if you really want authenticity this is what we did -- > >I always had to "boot" my Altair with a simple paper tape loader program entered from the switches on >front panel. I did this so many times, I had the 30 octal codes memorized. Often several times until it read the cassette correctly! Saving stuff was easy though bets were off if you could read it later. First homebrew board 8223 (x2 for 64 bytes plus 2 7489s for 16bytes of scratch ram) prom boot! >Once I had Altair BASIC loaded, I generally kept the machine powered up as long as possible. Or until it crashed! >I never knew anyone who actually had a actual floppy for their Altair. >I seem to remember that they cost more than the computer itself, and the computer was quite >expensive --($2,000 1974 dollars). I built and debugged two of them for others. Allison

25 years, 7 months

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Altair Owners ...

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >Has anybody got an ALTAIR that actually runs CP/M? I rans MITS DISK BASIC back when. Also using NS* MDS-A both NSdos and CP/M-1.4. >I have one OS for an Altair, namely a system with the MITS serial board an a >Morrow DJ2. Not being an Altair-owner myself, I don't know how, exactly to >prepare a BIOS for the two Altair add-ons I'm building up for eventual >liquidation on eBay. The altair was a regular conflagureation of hardware often a MITS 8080, one of the SIOs or 2SIOs and mostly everyone elses disk controller. the most common at the time was the NS* MDS-A, ICOM FDOS and some of the various 1771 based boards. Most people replaced the backplane at that point as the MITs bus assembly (save for the later -B version) wer really bad for noise. Allison

25 years, 7 months

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scart cable in US?

by pete＠dunnington.u-net.com

On Jan 3, 3:43, Mike Ford wrote: > >One thing I built years ago was a cable with a SCART plug on one end and > >a box on the other with 6 BNC sockets (composite in, composite out, R, G, > > I wonder where I could find a SCART connector in the US? It sounds like the > connection I have on a Sony monitor, 130x (x is 4 or 6 or something), that > I have never been able to test. > > BTW I have found a couple sources for cables at $25, but I need the much > cheaper kind. ;) Ouch! Over here, cheap SCART leads cost as little as a couple of pounds! If you want connection tables and pictures, try some of these: http://www.kevlar.karoo.net/scart.html http://www.drdish.com/knowledge/0005/eng/000504.shtml http://www.netcentral.co.uk/satcure/scarts.htm and probably hundreds of others that Google could find for you :-) -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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Looking at Thomson MO5 PAL video output and MO5 connector pinouts

by claudew＠sprint.ca

Hi I have one of these Thomson MO5' now in my collection. I know it's a PAL video output. Very little info on the net about this one. Lotta emulators but not about the real machine hardware. Would like to know where does the PAL video come out of... Anybody have a simple suggestion for looking at PAL video signals? Also would like the pinout for the odd connector coming out of the unit... Claude -- The Canuck Computer Collector http://computer_collector.tripod.com

25 years, 7 months

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decus lives!

by pete＠dunnington.u-net.com

On Jan 3, 18:01, Adrian Graham wrote: > At least in the UK anyway. The recent flurry of DECUS complaints on here > made me wonder what had happened to my own membership - sure enough it > expired last month so they're wanting another 25 english pounds off me. > Thing is, is it still worth it to be a member? I haven't been to the > seminars etc for *years* and don't have a requirement for hobbyist kits or > anything like that...... I'm not sure a UK membership entitles you to very much in the way of hobbyist kits -- our UK branch seems very backward in all respects except collecting money. My membership expired years ago and when I was invited to pay not only the ?25 membership but a similar "joining fee" to rejoin, I declined -- I was a student at the time and it wasn't affordable. Especially since they wanted such high prices for anything from the software library. Anyone know just what hobbyist licences/kits are available to UK members? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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Altair Owners ...

by kapteynr＠cboe.com

Hey wait a minute ... A BIOS on an Altair ? Sure there were add-ons (years later) that did this, but if you really want authenticity this is what we did -- I always had to "boot" my Altair with a simple paper tape loader program entered from the switches on front panel. I did this so many times, I had the 30 octal codes memorized. Once I had Altair BASIC loaded, I generally kept the machine powered up as long as possible. I could write BASIC programs and "save" them in one of two ways -- (1) by punching a paper tape on a Teletype machine, or (2) a notoriously unreliable cassette tape interface. Later we got a surplus 9-track magnetic tape drive, but that was also a big pain. I never knew anyone who actually had a actual floppy for their Altair. I seem to remember that they cost more than the computer itself, and the computer was quite expensive -- ($2,000 1974 dollars). But then, my brother and I were 12 and 13 years old and we only new a couple of other Altair owners. -Rob -----Original Message----- From: Richard Erlacher [SMTP:edick@idcomm.com] Sent: Wednesday, January 03, 2001 10:39 AM To: classiccmp(a)classiccmp.org Subject: Altair Owners ... Has anybody got an ALTAIR that actually runs CP/M? I have one OS for an Altair, namely a system with the MITS serial board an a Morrow DJ2. Not being an Altair-owner myself, I don't know how, exactly to prepare a BIOS for the two Altair add-ons I'm building up for eventual liquidation on eBay. I've got two genuine MITS boxes, one intended (but never used as such) FDD box, with a front face plate I made in the shop, which houses a PSU, and offers four HH 5-1/4" drive bays, with a dual 50-conductor cable hookup in the back, the latter hookup being of my own design an the opening for it having been milled by me. The box is original, but there's no identification of any sort, since this was from a batch of raw boxes I bought when MITS went tits-up. The other, essentially identical box is a MITS HDC box, with the original cardcage and PSU (repaired) but no back cover, which once covered the card cage opening from the rear, and, consistent with the original MITS accommodated a parallel interface to the Altair computer. It is completely original and has no modifications to the box, which still bears the original dress panel and key-switch, but the box houses a WD-1002-05 bridge controller, capable of handling 4 floppies (albeit 5-1/4" and 3-1/2" only, due to the supported clock rate). This box is intended to be used in tandem with the COMPLETELY COUNTERFEIT drive enclosure mentioned above, though it's being done in a period-authentic way. What I want to know is what sort of support for floppy diskettes will be require, if any, based on the fact there will only be 5-1/4" drives accomodated in the system. Has anybody got a "better" sort of BIOS setup for booting from the WDFDC? I'm looking to clone something, so the eventual owner will be able to build and use a boot diskette from something else, prefereably something that already exists, yet the only running Altair boxes I've seen/heard-of myself use the hard-sectored mini-floppies of the Northstar, and that's not an option. Any suggestions? Dick

25 years, 7 months

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Need assistance with project ($$)

by vcf＠siconic.com

This is directed to any TRS-80 experts: I need help with a consulting project I'm working on. I need to get a copy of the TRS-80 game Combat from a PC emulator file onto either cassette or diskette (better yet, I need to get an original copy of this game). Additionally, I need assistance in figuring out how to configure the hardware for this game. Combat is a multi-computer, multi-player game. It requires some sort of physical serial connection (either via modem or serial cable) between two TRS-80 computers. It allows two people to play against each other in realtime. If you think you can help me with this, or preferably, if you have experience with this game, please do contact me ASAP. Your assistance will be monetarily compensated (this is your chance to make some money with this hobby other than selling stuff on eBay! :) Please contact me at <sellam(a)vintage.org>. If you know anyone who might be able to assist, please forward this message to them. Thanks! Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 7 months

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DecStations

by LFessen106＠aol.com

Does anyone on the list know what year the Personal DECstation 5000/33 (Maxine) was released? How many MIPS it runs at? And how much it originally costed? Thanks, -Linc.

25 years, 7 months

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cleaning QIC?

by red＠bears.org

I need to repair a partially torn tape, and remove some sticky gunk from the media itself. Hopefully I'll be able to do this in a way that will allow me to read the tape one last time to get an image of the data. This particular tape got gooed up in a tape drive which had a decayed capstan. It didn't get gooed up too badly, but it looks like it was enough to cause a headache. I was able to clean the goo off the cassette mechanics by using a nr. 7 X-Acto blade dipped in alcohol. All went well with that. When I tried to read the tape to make an image, it progressed to a certain point on the tape and gave up. Examining the tape revealed the following defects: * traces of capstan goo * a small, ca. 1/16" tear in the tape I'm assuming I can use some splicing tape on the tear, but what can I use to clean the goo off the tape? Alcohol worked well on the cassette, but I've heard that it can cause the oxide to separate from the substrate if used on the tape itself. Any suggestions or speculations on my chances of succeeding would be appreciated. I'm in a bit of a bind. ok r.

25 years, 7 months

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It had to happen sometime

by mcguire＠neurotica.com

On December 29, Marvin wrote: > I was looking at the Heath Listserver messages and here is the URL of a > disassembled Heathkit "kit" selling on Ebay. Current price (someone has too > much money on their hands) is $103.50. The URL is: > > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?MfcISAPICommand=ViewItem&item=5328… > > The next thing will most likely be similar computer "kits". There was a > discussion on the Heath listserver about this unit and Chuck Pension spoke > about this type of activity being another cottage industry. Anyone > interested in a disassembled Heathkit H-89, or H-11, or ... :). I thought you had to be smoking crack or something, Marvin; nobody would actuall *do* something like this...but I just looked at the auction. It's true. Be afraid. Be very afraid. Why do we have to stop at things that were originally kits? I can see it now: "DEC PDP-11/34a KIT! L@@K! RARE!!" Better start buying stock in ChemWik! -Dave McGuire

25 years, 7 months

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datasheet for intel compatiable 8042 ic.

by ajp166＠bellatlantic.net

From: jpero(a)sympatico.ca <jpero(a)sympatico.ca> This is microcontroller chip commonly found on clones till post pentium packaged in 40 pin DIP. After that, non-legacy and embedded 8042's in chipsets in newer boards and later. Right now I need the pin info where clock goes into that 8042 so I could bypass current clock source. Motherboard's clock generator is sick. Most of it is partially working, which is very common on one brand chipmaker. !! Do it by injecting 8042 directly with crystal xtal or use 4 pin oscillator ic. Need Mhz as well, 12Mhz? Pin 2 is X1 (clockin) and Pin 3 is clock out. Same pinout as 8041/8741/8742 Allison

25 years, 7 months

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Monitor help needed

by BGarvey355＠aol.com

I'm new to this list but not to classic computers, well...to classic IBM's I am, ask me about Atari computers though, then we can talk ;-), which is the reason for this post. I picked up a couple of monitors from a friend of mine and I'd like to find out what they are for and can I utilize them on other classic computers in my collection The first monitor is an IBM 5151, it has a 9pin connector on it's built in cable The second monitor is actually a terminal I think, it's a 3179-2, and it has some strange connectors on the back of it, including a 25 pin for the monitor itself coming from the pedestal base. Is there any use for these monitors other than there intended system? thanks in advance, Brent

25 years, 7 months

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DEC trellis software manual (Kansas City)

by mmcfadden＠cmh.edu

I was digging through a box of DEC manuals and I came across a DEC trellis manual. From my searches I have found that it was a DEC object oriented language. Does anybody want it? You pay USPS mailing costs. probably about $3. Mike mmcfadden(a)cmh.edu

25 years, 7 months

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TRS-80 Model 100 portable

by smithjhl＠remconline.net

I have this computer in mint condition. Would like to move out of my closet. What is the best wat to do so and what is a reasonable price? I am not on the list so would appreciate direct email. Thanks. Jeff Smith

25 years, 7 months

2
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Convergent server available in UK (fwd)

by kevan＠heydon.org

Reply directly to the original sender if you are interested. ---------- Forwarded message ---------- Date: Thu, 28 Dec 2000 10:48:04 -0000 From: dinakoski vebel <vebel_dinakoski(a)hotmail.com> Subject: Server available Hi, I have a convergent technologies mightyframe 6000A available for free collection. Comes complete with manuals, various tapes (sql, W/processor etc) and has a DC600 SCSI tape drive, 2 small hard disks, 40 RS232 channels. It boots to a point then hangs. Looks like disk problem. I also have numerous dot matrix printers (small & wide carriage), 17" non working monitor, 3 UPS's (not working) and various other odds. If you are interested, reply to this email to arrange collection. You will need a small van or galaxy car to remove all, the mainframe is not big. I am based in Corby, northamtonshire. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.

25 years, 7 months

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Cleaning instructions for TK50/70

by kyrrin＠bluefeathertech.com

Happy New Year, folks. This one saw a big milestone for me as I took over management of my own mail servers. It will soon see the establishment of FTP, a maintenance node, and (possibly) a caching Usenet server. Depends on how adventurous I get. ;-) Anyway... for Pete and Jerome, who seem to be most confused about cleaning TK50/70 drives, I present the following. First and foremost, do NOT lift the head up against those springs! I'm assuming you two already know to pull the drive out of the system, and take the top cover off. What you do then is unhook the pickup leader, and reel it out of the way onto the take-up reel. Next, locate the little plastic guard directly in front of the head. It's held on with a single screw. Remove said screw, remove the guard, clean head with swabs and alcohol (should be 99% isopropyl -- don't use the 91% due to water content), and reassemble. All should now be well. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

25 years, 7 months

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FT: DELQA User Manual, DHV11 Technical Manual

by cmcmanis＠mcmanis.com

For what ever reason I've ended up with a couple of spares of these two manuals, manual #1 is the DELQA Users Manual it details everything you need to know to test, program, install, and configure the M7516 DELQA Ethernet interface. The second is the technical manual for a DHV11, the back has been creased a bit but otherwise it is in good shape and still has the tear-out maintenance card intact. I'm interested in trading these 1:1 for other DEC technical manuals. On my want list are: KA630-TM KA640-TM KA655-TM KA670-TM DEQNA-TM (this will complete my set :-) CXA16-TM (or -UG) RQDX3-TM (or -UG) TQK70-TM (or -UG) These are the ones I _know_ I can use, but I'm interested in all documentation. --Chuck

25 years, 7 months

1
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UCSD P System (was: Why is it that ...

by ajp166＠bellatlantic.net

From: Jim Battle <frustum(a)pacbell.net> >For those not wanting to chase the link, it says: > > Filer: G, S, N, L, R, C, T, D, Q [1.1] > >Don't you remember? This was the security mechanism. Must have been the apple {likely ti99 too} version without the 80col card. On a S100 Z80 crage using an H19 it was far better. I had the chance to compare the two and UCSD was marginal with 40 char, somewhat better at 64 and seemed like a different animal with 80 (or more) col. Allison

25 years, 7 months

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OT: Need disk image - QEMM

by rcini＠optonline.net

Hello, all: I'm in the process of creating disk images of various programs and utilities. I came across my copy of QEMM, the memory mamager from Quarterdeck. My disk 3 is bad. Does anyone have a copy of this that they can send me? Thanks. Rich Rich Cini ClubWin! Group 1 Collector of Classic Computers Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /*****************************************/

25 years, 7 months

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AFP: VAXSimPlus Docs

by cmcmanis＠mcmanis.com

(AFP = Available for Postage) I've got a set of three shrink wrapped docs for VMS VAXSimPlus Users Guide Update to the Users Guide Getting Started Guide All in that VAXish orangy color. Perhaps they are collectible as the software product is mentioned in the paper on RAID that was discussed here recently :-) Contact me off list if you'd like 'em. --Chuck

25 years, 7 months

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Too much stuff in my basement series : Golden II apple clone give away/trade

by claudew＠sprint.ca

Hi This going in garbage soon too. Golden II a popular Apple II clone. A few scratches on case. Rest ok. Not tested really. I guess I could if you ask me. Willing to give away or trade for anything that might interest me. I collect mostly micros from the 197x-198x...Not Apple clones...not enough space... Shipping from Montreal, Canada Expect it to be around $10US-$12US for shipping...I guess... See my crappy web site for more stuff to give away/trade. Not looking for $, just trades or give away... http://computer_collector.tripod.com Claude Canuk Computer Collector

25 years, 7 months

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Original Apple I on TV

by spectre＠stockholm.ptloma.edu

This morning the History Channel covered the Apple I in their History's Lost And Found (it was on at noon Pacific time). Not sure when it will be rebroadcast, but keep an eye out. By the way, if you want the original Apple I prototype, you'll have to bust into the LO*OP Centre in Palo Alto. >;-) -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- I am Dyslexic of Brog. Fesistence is rutile. You will be asmilsilated. -----

25 years, 7 months

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Cleaning Head on TK70/TK50

by pete＠dunnington.u-net.com

On Jan 1, 9:01, Jerome Fine wrote: > Hey - my first e-mail of the new millennium - somehow it seems > no different. Happy New Year EVERYONE. May this year, > decade, century and millennium bring us all what is truly best for > the development of all lives on this planet. Happy New Year, Jerome! (and everyone else, of course). > I have been using a TK70 for about 6 months and yesterday, it > gave up. The error is that it will not read or write, so I tend > to assume that the head must be cleaned. Of course, it could > be an electronic circuit, but the symptoms (a slow deterioration > over about 3 tapes) suggest otherwise. Plus, I have the isopropyl > cleaning fluid and a stock of cleaning swabs. I have a similar situation with a TK50. > However, having never done this before, I don't know how to achieve > access to the head and if there are other parts to clean as well. The > head is held down by two springs which allow the head to be gently > raised. But only so far. Will it stretch the springs too much to lift > the head high enough to be cleaned - or should the springs be > detached first and how might that be done? Are there any other > questions that I should be asking - that someone who has done this > before knows about because they found out after the fact? > > Thank you in advance for any help. I assume that the procedure > for a TK50 (of which I also have one) is about the same, but if > not, please indicate if there are any differences between a TK50 > and a TK70 in regard to cleaning the head or anything else that > a user would want to be aware of. It's such a long time since I looked inside a TK<anything> that I can't remember how to do this -- so I'd be interested too. BTW, does a standard DLT cleaning tape work in a TK50/70? I can borrow one from work. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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Cleaning Head on TK70/TK50

by jhfine＠idirect.com

Hey - my first e-mail of the new millennium - somehow it seems no different. Happy New Year EVERYONE. May this year, decade, century and millennium bring us all what is truly best for the development of all lives on this planet. I have been using a TK70 for about 6 months and yesterday, it gave up. The error is that it will not read or write, so I tend to assume that the head must be cleaned. Of course, it could be an electronic circuit, but the symptoms (a slow deterioration over about 3 tapes) suggest otherwise. Plus, I have the isopropyl cleaning fluid and a stock of cleaning swabs. However, having never done this before, I don't know how to achieve access to the head and if there are other parts to clean as well. The head is held down by two springs which allow the head to be gently raised. But only so far. Will it stretch the springs too much to lift the head high enough to be cleaned - or should the springs be detached first and how might that be done? Are there any other questions that I should be asking - that someone who has done this before knows about because they found out after the fact? Thank you in advance for any help. I assume that the procedure for a TK50 (of which I also have one) is about the same, but if not, please indicate if there are any differences between a TK50 and a TK70 in regard to cleaning the head or anything else that a user would want to be aware of. Sincerely yours, Jerome Fine

25 years, 7 months

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Happy New...

by pete＠dunnington.u-net.com

Having just surfaced after the fireworks and champagne party last night, I thought I'd wish you all a Happy New Year, Happy New Millennium, and welcome to the 21st century... -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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Anyone have a 201 or 301 dataset? or an 801 ACU?

by xds_sigma7＠hotmail.com

I'm looking for about 2 or 3 201/301 datasets, and at least one 801 Automatic Call Unit, and a few of the synchronous Bell datasets would be nice also, I want to add dial-in capability to my Interdatas and Perkin-Elmers. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 7 months

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Hays Chronograph, baudrate, bits, etc. . .

by jeff.kaneko＠juno.com

Anybody know the baudrate for the Hayes Chrono? WOrdsize and parity would be nice to know, too. ALso, is it DCE or DTE? I would look at my electronic copy of the manual, but it looks like it went to the bit-bucket . . . Jeff ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 7 months

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A different variety of cool unit with a gas plasma display

by xds_sigma7＠hotmail.com

Hi all, This thread reminded me that I have 3 IBM 3290's, which are, as far as I am aware, the first commercial products using gas plasma displays.. I even have the IBM marketing brochures on them, talking in depth about the technology used to make the panels, etc. They are 3270-compatible critters, so I hope to one day have them connected to my 4381... But I don't have any keyboards for them! Can anyone help? Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 7 months

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Speaking of logic analyzers and 'scopes...

by xds_sigma7＠hotmail.com

Hi all, I have an ancient HP 140A 'scope, vintage 1964, HP's third or fourth scope I believe, and I could use some parts for it if anyone has any, specifically the little feet for the bottom of the case, also any 1400 series plug ins, I have about 5 different ones already but more would be fine ;p BTW; this scope goes all the way up to a blistering 20 megacycles... However, it is one of the coolest looking pieces of gear I've ever seen (heavy though). Could also use some probes for the 1402A dual trace amplifier.. if you have any of this stuff you probably know what I'm talking about.. I also have an HP 1615A logic analyzer, I'd be interested in a manual for this, have all the plugins already... Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 7 months

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Hayes Chronograph, baudrate, bits, etc. . .

by jeff.kaneko＠juno.com

Thanks to everyone who responded, I got this thing to talk. It's 300 baud, n, 8, 1, dce (use a standard modem cable to talk to it with a PC, for example. Jeff ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 7 months

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Need Mac hard drive manual

by vcf＠siconic.com

Does anyone have a hard drive manual for a Mac compatible hard drive? Please contact me privately if you do. Thanks! <sellam(a)vintage.org> Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 7 months

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DEC-423 to RS-232 chip?

by cmcmanis＠mcmanis.com

Hello Everyone, I had one of those DEC MMJ->DB-25 things come apart on me and expected to see the MMJ connector wired to the DB-25 in the now familiar mode we see in the FAQ, however instead there is an ST 20 pin chip betwixt the MMJ and the DB25! This might explain why they work better than the wired together solution :-) The chip is labeled HTAM1B4 (looks like a house number) then under that is P 9236 (date code I suspect) and then under that "Philippines". Can anyone guess the "real" part number for this chip? no power or passives at all so I presume it runs on phantom power. looking at the PCB I'd guess its wired up as follows: pin 1 - GND 20 - GND 2 - MMJ-5 19 - DB-2 3 - MMJ-2 18 - DB-3 4 - MMJ-6 17 - DB-20 5 - MMJ-1 16 - DB-7 6 - GND 15 - GND 7 - GND 14 - GND 8 - MMJ-4 13 - DB-8 9 - MMJ-3 12 - DB-8 10 - GND 11 - GND The DB25 is a female (DTE?) and while I'm sure of the DB pin numbers the MMJ numbers may be reversed, since I'm never sure if pin 1 on the MMJ is the left pin looking into the connector body or the right pin. (I assume the left pin above) --Chuck

25 years, 7 months

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OT (sortof) wanted items (cart & logic analyzer stuff)

by mcguire＠neurotica.com

On December 30, Richard Erlacher wrote: > What kind of equipment to you intend to work on with this new LA? I've used Just general hacking. I'm doing more and more digital stuff (mostly PIC-based) and up 'til now a logic probe, a pulse generator, a DMM, and a fast 'scope have been all I've needed for troubleshooting. I've just been thinking a decent multichannel analyzer might be a nice addition to the bench. > the HP 1630 though it's been about 15 years. It has some nice features. > With today's fairly flexible (I/O) devices, however, you might find it > interesting to build one that uses your PC as a display and acquires the > sample memory contents from the device via the EPP. If you're really > ambitious, perhaps USB would be appealing. It's certainly popular enough. Eh...that would mean getting a PeeCee. Thanks for the suggestion though...it's definitely a cool idea. > If you're determined to buy a logic analyzer, the crux of the task is to > find a unit that's not only fully functional but also fully complete. You > need the documentation ... all of it, and you need the complete set of pods > and whatever mechanism, usually an interface board, that is required to > support it. You'll ultimately be disappointed if it's possible to have more > channels than what you've got, so it's important you have enough channel > boards, pods, and probe clips to support them all. There are usually pod > testers that come with a new logic analyzer, and those often are the first > thing that gets lost. Those are extremely necessary when you're having > trouble gettin a setup to work, because they're the only way you have of > restoring your confidence in the instrument. If there's some sort of method > for storing and processing the sample data, either internally or externally, > you certainly will want that capability. A spare pod is pretty useful, too, > unless you think you will find one, which I, having searched the market > pretty thoroughly at various times, doubt very much. I did find on, > however. Understood. I have pretty good sources for test equipment and docs, so I'll be able to shop around a bit, and try-before-I-buy. > I've had several logic analyzers, and, in '92-93, due to the need for > portability, decided to replace my bench-bound model for a portable, a TEK > 1240, which is the monochrome (cheaper) version of their portable of the > mid-late '80's. I found any number of incomplete LA's. Mostly, the pods > and the sample boards were partly or completely missing. Documentation was > not common, and, though I found some pods for sale, they were not complete, > and none I was offered had documentation. Unfortunately, it's too easy to > develop excessive or erroneous expectations of what the instrument will do > if you don't have doc's so you'd better have them. I found several > 1240/41's for <$250, but those were without pods, several were without the > required sample boards, and none had documentation. I found pods, often > costing more than $250 for a pair, again without documentation and, worse, > without the lead sets and probe clips that you need to attach to a device I've looked at the Tek 1240/1241...both seemed pretty nice. From my sources, though, they get awfully expensive (>$800) if they're complete with lots of options, pods, clips, and docs. > Before you buy, be ceratin that YOUR preferred triggering methods are > supported. I've found triggering the most critical problem of logic > analyzer application, and if there's even a single conceivable mode that > isn't supported, THAT's the one you'll need, ... trust me. Sounds good to me. Thanks for the advice! -Dave McGuire

25 years, 7 months

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VT78 - lots of questions

by djg＠drs-esg.com

From: pete(a)dunnington.u-net.com (Pete Turnbull) >That wasn't what I meant. Berg label the connector pins starting from the >opposite end of the connector from the rest of the world, so what I meant >was that on actual connectors, the pins are: > ... Thanks, I have updated the document. I had less trouble building it in the first place than figuring out what I built. The adapter has a normal 3M in it and I had though I got the pin 1 backward on it. Apparently when I built it I knew they were opposite but since forgot.

25 years, 7 months

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VT78 - lots of questions

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> >Yes, and although the Rainbow has a Z80 in it (which could run 8080 >code), IIRC, the internal VT100 emulator runs on the 8088 processor in >the 'bow. Killer CP/M-80 machine and it also ran CP/M-86 better than most. What was odd is it's one of the rare machines that had DOS with more than 640k! Allison

25 years, 7 months

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OT: help...

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >Over here, virtually all large-ish screen TVs have what's called a SCART >socket. This is a 21 pin connector carrying 2 channels of audio in and >out (4 connections), composite video in and out (the input is also used >for composite sync in in RGB mode), RGB input, blanking, etc, and lots of >grounds. Never seen one here. This set does take composite video in and audio in via jack on front (Sharp). >I've never seen a monitor with a hot chassis. I know the original 110V >version of the TRS80 model 1 monitor was (I have the service manual), and >had an opto-isolated video input, but surely all more recent monitors >have isolating PSUs? Many do, but I was thinking more of TVsets. >About the worst you'll find over here is some varient of the IPSALO >circuit (IPSALO == Integrated Power Supply And Line Output, Line Output >being what we call the horizontal output stage). Comon config here in smaller or lowend sets. >With these, the flyback is on the hot side of the PSU, as is the >horizontal deflection yoke. The horizontal drive signal is opto-isolated, >the horizontal osciallator, vertical deflection, video circuitry, >tuner/IF strip, etc are all isolated from the power line, The EHT to the >CRT is isolated as well, by the flyback transformer. > >Of course these means that one yoke winding is isolated from the power >line, the other isn't. Adds the 'fun' when servicing these. Isolation transformer is the only way to live. Allison

25 years, 7 months

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Another unknown system available in St. Louis

by west＠tseinc.com

I almost forgot to tell the list about this one.... if anyone wants it, it's theirs. I'll pick it up and facillitate shipping, or you can come to st. louis and go to the store and grab it yourself. At another electronics surplus store in st. louis....this appears to be a cpu only, could be a cpu and disk drive. 19" rackmount, brushed aluminum type front panel. The brand says "Bruker" on it. There's a row of lights for IRQ (6-0), a row of lights for pending IRQ (6-0), lights for diskr, diskw, ION, RUN, POWER. There's two LED displays in the upper right corner, one for the PC and one for the Accumulator. Bottom right is a keyswitch. In the center are pad switches with embedded led's for things like single step, examine, store, etc. Then above that and in the center is a set of thumbwheels... they all were set at zeros, and I don't recall how many of them there was, maybe 12 or so... just on appearances and a walkaround without touching it I wouldn't be suprised if it was a core machine. It's high on a shelf in the storage area, they won't want to get it down unless I'm serious about buying it - it looks heavy. There's no price on it, but from past experience at this place I'm figuring the owner would ask about $35 bucks for it. The general outward construction and appearance looks very similar to the nicolet model 80 that I got there a while back and was (ISTR) shown at the last VCF. I've never heard of a "bruker" computer... I'm not interested in this system for myself, but for intellectual reasons I'm a bit curious if anyone has heard of this system and could tell a little bit about it. If anyone wants it, contact me off list. Jay West

25 years, 7 months

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OT: help...

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> Doesn't even have an IEC cord set, strictly domestic. mains come in > >Odd.... Not really, domestic low cost version. saves a bit of money. >> Don't have to tell me. I've been kicked mor than once by Oscope supplies > >Yes, I know _you_ know, but this is a public list, and not everyone here >is used to working on high voltage stuff... True. I take it quite seriously. I was almost Blue Crossed 25 years ago when someone tried to help me while working on a 500W (output!) VHF commercial set. The turkey was thouching me when he reached into the plate compartment. We both flew about 12-15ft and he left via ambulence and if the combined shock and flight didn't hurt him I was going to. I was in some pain for days afterwards. >> No, most monitors these days can stand up without the cover and > ^^^ > can't ? Cant! confounded editor on this MS box like to go from insert to overstrike, very annoying. >True. It's often best to put them screen-down to work on them (and >certainly when removing or refitting the case). Trying to run them 'right >way up' with the case removed is a bad idea most of the time. that's the problem. though I do have a small carpet square to keep >from scratching the screen. >In the UK, almost all the circuity in a monitor (and most TVs for that >matter) is isolated from the power line. There's a 'hot' SMPSU, of >course, but the flyback, video circuitry, etc are all isolated by the >chopper transformer. True in this case but many TVs are not. I have a color set I have to look at (color skewed to red) that is very unsafe... isolation Xfmer time. >I've heard that a lot more of the electronics in US TVs is 'hot' >(compared to what I am used to) -- surely that's not true of monitors as >well.. Yes! >That doesn't necessarily mean the capacitors are still good. Particularly >not with the cheap components used in consumer electronics. I'd be more >inclined to trust a 20-year-old capacitor from an HP or Tektronix >instrument than a 5-year-old one from a PC monitor. No arguement. We retired a leader LBO505 Oscope as unstable calibration due to bad caps yet the Tek 316 is still going strong and in calibration! Allison

25 years, 7 months

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Amsat-Golem article - redux

by rcini＠optonline.net

Hello, all: Happy New Year to everyone. I'm trying to do some rearranging on my file archive, and I can't seem to locate the scan of part 2 to an article in BYTE magazine about the Amsat-Golem S100 computer. Whoever scanned this for me and e-mailed it to me, if you could re-send it. I'd appreciate it very much. Thanks again. Rich ClubWin! Group 1 Collector of Classic Computers Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /*****************************************/

25 years, 7 months

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VT78 - pinouts

by pete＠dunnington.u-net.com

On Dec 30, 23:06, David Gesswein wrote: > From: pete(a)dunnington.u-net.com (Pete Turnbull) > >That wasn't what I meant. Berg label the connector pins starting from the > >opposite end of the connector from the rest of the world, so what I meant > >was that on actual connectors, the pins are: > > > ... > > Thanks, I have updated the document. I had less trouble building it in the > first place than figuring out what I built. LOL! I often find that :-) > The adapter has a normal > 3M in it and I had though I got the pin 1 backward on it. Apparently > when I built it I knew they were opposite but since forgot. The first couple of times I came across Berg connectors (rather than, say, 3M, which I was used to on micros) I was *thoroughly* confused by what I saw as the "wrong" way of doing it. A healthy dose of DEC machines with 3rd party parts fixed that. Now I use them less, I have to think about it again, though. I wonder how this confusion came about? Everyone else uses "stripe on the right" (but not, IIRC, for D-connectors and some others) but I think Berg predates 3M et al headers? If so, how come 3M and the rest chose to be different? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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IBM-PC and SCSI

by lgwalker＠look.ca

I recently picked up a Fujitsu M2266SA HDD. This is a 1M SCSI 5 1/2 " drive with a black bezel like the IBM-PC MFM drives and will fit in the same space. The vendor said it was SCSI-1 but TheRef says it is SCSI-2 and Fujitsu doesn't say. I have a heavily modified PC(5150) with an Intel 386 Onboard card as Allison has on her Leading Edge 8086 (BTW, I have a lead >ajp < to someone that has the mem-expander daughter card) However I have no info on whether it would be possible to add a SCSI card to an IBM-PC. I have an Adaptec 1522A ISA SCSI card and likely others in my card box. Was there a SCSI card for the PC ? If so, would this possibly, with this configuration, allow you to transcend the 5-slot limits of the PC. And of course to have 1 meg storage for programs. WHEEEEE!!! Am I in fantasy-land or could I have a system to confound the leading-edgers, altho it already does that. "NO IT ISN'T POSSIBLE ON SUCH AN EARLY COMPUTER" . He he he he, chortle. ciao larry Reply to: lgwalker(a)look.ca

25 years, 7 months

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Tektronix 4052 and 4054 with 4662 plotter and 4631 hard copy unit

by montym＠swbell.net

Well, my waiting paid off. I picked up a Tektronix 4052 along with a Tek 4631 hard copy unit and custom metal cabinet late last year from a guy selling surplus medical school equipment. The 4052 had three missing keycaps and that was very difficult to remedy, but found an ex-Tek employee who had the keycaps I needed! Also a bunch of program tapes and several ROM cartridges. I now have the Character Set ROM and Signal Processing #2. The 4631 had paper too old to use but I found some on the internet for $10! Also, after about a dozen printouts, the main drive belt fell apart. Even with the service manual, finding a replacement was very difficult. Fortunately the service manual listed the number of teeth and length of the belt, so I was able to get one from Stock Drive Products. I also located the service manuals and found a 4662 multipen plotter on EBAY. I revived many of my old 4051 programs from the '70s, except for the ones that use the CALL "EXEC" command :( including my music playing program in 6800 assembly language. I even modified a Kraft PC joystick to plug into the 4052 joystick connector - works great, played one of the startrek games for the 4051 that supported the joystick. I also found and won a 4054 on EBAY early this year! This machine had been auctioned from Caltech. This machine was listed as not working. After some cleaning, I decided to try unplugging and reseating all the chips in sockets. I found one of the 16K bit DRAMs was bad, bought a 64Kbyte set to upgrade the memory to the 128KByte maximum and got the machine running again! Then I tracked down a malfunctioning opamp in the tape drive board and loaded some of my revived programs. Wow - the 19" direct view screen is incredible compared to the 12" flat CRT screen in the 4051/52. Although it is not flat, it has much more detail - I can see why it was preferred for CAD. Amazing how Tektronix had the higher resolution completely compatible with the old software. The 4631 hard copy made an incredible printout. Spurred on by the article at computergarage.org on using 4051s in Battlestar Galactica, I decided to try to write a short program to display a squadron of Battlestar Galactica Vipers on patrol. Using the image in the computergarage article, I printed the image on my inkjet, wrote a short digitizer program for the plotter and used the 4052 to digitize the outline of the viper in the picture. This is saved in a single array, then using Tek graphics WINDOW and VIEWPORT commands I draw the array with a single DRAW command, move the origin, resize the window and draw again. The same display on the 4054 is noticeably sharper than the 4052. By changing the DRAW command to a PLOT command, I'm able to plot the program to the 4662 - that's what I loved about the Tek PLOT 50 language. I'm still looking for someone with information on the CALL "EXEC" command and the 'newer' 4052/54 bitslice machines. Philip Belben was correct about the increased speed - some of my 4051 benchmarks run 10X faster on the 4052 and 4054. The "A" rev 4052A and 4054A added a TI GPIB chip to increase the GPIB speed further, and added a couple of other commands. The 4054 added a "refresh cursor" that could be controlled with the built-in thumbwheels in the keyboard. There was an Option for REFRESHED GRAPHICS that expanded on that concept and added an 8X300 coprocessor board with refresh graphics memory to have a whole graphics image be drawn without "storing" the image on the screen. Apparently my machine left the factory with that option - but the board is no longer there. Love to hear from someone that had that option board. Monty McGraw

25 years, 7 months

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Heath H-101-20, more info

by ajp166＠bellatlantic.net

From: Jay West <west(a)tseinc.com> >It does appear to be an S-100 system. I'm not qualified to say that since I >am not into S100 stuff, but the cards inside it have 50 pins per side, and >it looks like the pics I've seen of S100 stuff. It is. Sounds like a Z100 (Z110 and friends). >The keyboard is missing the F12 key, and there is indeed a composite video >out rca jack. Right beneath it is a DB9F, from a quick look at the cable >internal I'm guessing it is mono out. There's also about 20 punchouts on the It's mono. There was a matching tube but any B&W monitor will work. Allison

25 years, 7 months

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VT78 - lots of questions

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> > > Don't the VT220 and VR201 share some parts as well? My VR201 >got dropped a while back and that's the reason my DECmate isn't up Not really.. The tube is the same and maybe peice parts but ones a basic monitor and the other a complete CRT system. Allison

25 years, 7 months

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VT78 - lots of questions

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> I'm not sure about the DECmate III, but I know the II shares >> a few parts with the VT220 terminals. It also shares it's case with > >Apart from the LK201 keyboard, and obviously standard electronic parts, >what other items are common between the DECmate II and the VT220? CRT {assuming VR201}, and not much else. Though DecmateII/III does VT100/VT220 emulation. >I know the 'bow rather better than the DECmate, and I'd consider that >that machine has rather more in common with the VT100 than the VT220. For >example, the only 2 custom chips in a 'bow are the video timing chip and >video path chip on the motherboard, and those are identical to the chips >in a VT100. Sorta. sorta like saying all Z80 machines run CPM, not much commonality in a real sense. The chips are low level video timing and interface and do not really define VT100 or VT220 directly. The point being is VT100 uses 8080 or 8085 for smarts, VT220 uses 8051 and DECmate uses the COMS PDP-8 chip for the smarts. Allison

25 years, 7 months

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OT (sortof) wanted items (cart & logic analyzer stuff)

by mcguire＠neurotica.com

On December 29, Jay West wrote: > I love my HP 1631D logic analyzer, but it takes up way too much real estate > on my bench. I'd like to get a mobil cart for it, but virtually all the > scopecarts I've seen (like the tek 200) are for small scopes & such... the > 1631D analyzer is 16.5 inches across the middle, and 17 inches across the > front (the bezel sticks out a bit on each side). Would anyone have a scope > cart (like a tek 212 or similar) that is for wider instruments that is > excess and would consider selling/trading? > > Second, I'm looking for various disassemblers for the 1631D... these came on > 3.5 floppy, but I'm not sure what all disassemblers were available for it. > Anyone got this software laying around? I didn't think the 1631D had a floppy drive...? I had an HP 54201 oscilloscope for a while; it was my understanding that the 1631D was basically a 54201 scope with an additional logic analysis module. I've been shopping around off & on for a new logic analyzer...would you recommend the 1631D? -Dave McGuire

25 years, 7 months

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VT78 - lots of questions

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> > I believe it was DEC's first microprocessor based PDP-8 >family machine, followed not long after by the DECmate series. Correct, effectively decmate-I the VT52based version was the first and second was VT100 based then decmate-II/III. >Reason for introduction: Using TTL MSI and LSI components, DEC could > pack a system into the vacant space in a standard terminal case, > allowing PDP-8 systems to compete with personal computers in the > small business and office automation market. This was a natural > follow-on to the desk-mounted workstation configurations in which > the PDP-8/A was already being sold. Actually before 1980 there were very few "personal" computers so the VT78 was ahead of the pack somewhat. >Compatability: The Group I OPR combinations RAL RAR and RTL RTR are > no-ops. Unlike all earlier PDP-8 models, autoindex locations > 10 to 17 (octal) only work in page zero mode; these operate like > all other memory locations when addressed in current page mode > from code running on page zero. Other than this, it is fully > PDP-8/E compatable, even at the level of I/O instructions for > the standard periperals; this was the last PDP-8 to offer this > level of compatability. The 6120 chip also had this and improve it a little but they were actually the end of the PDP-8 family line! > the terminal. The console (device 03/04) and the serial ports > (devices 30/31 and 32/33) are compatible with the M8650 KL8E, > with the latter extended to allow software controlled baud rate > selection. There are two parallel ports; device 66 (compatible > with the M8365 printer controller) and device 47, compatible with > the nonstandard port on the M8316 DKC8AA. There is also a 100Hz > clock compatible with the clock on the M8316 DKC8AA. This is critical to most programs that would run on discrete PDP-8 systems would run on the VT78 where the later decmates had a sorta/nearly but not quite terminal emulation leading to OS/278 varient of OS-8. The emulation or existance of KL8e TTY interface at 3/4 was a defining standard for all PDP-8 software that used a terminal interface. Allison

25 years, 7 months

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stuff available in STL, Heath & TRS-80

by west＠tseinc.com

While browsing through my usual electronics surplus haunts today in St. Louis, I came across the following items for sale in a local shop. I have no interest in them, but thought someone here might? If so, email me off-list. Heath Computer Systems model H-101-20. This system looks vaguely like an HP85 case, but no internal monitor. Might be pre-PC, but could be an x86 dos system too - I have no idea. Radio Shack DWP-210 printer. Has a manual with it. Neither of these items had a price tag on them yet, but from past experience I'd say this store would likely be tagging it around $40 for the puter and $15 for the printer - I'm just guessing here. Don't know if either item works, but I wouldn't mind going back and testing if someone can tell me what to test on them. If anyone is interested, let me know off list what your target and max price is and I'll go haggle for ya, or if you'd prefer, put you in contact with the store directly. I wouldn't tack on any additional cost except whatever shipping costs to you. Regards, Jay West

25 years, 7 months

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Software for Northstar Advantage 8/16?

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> >take a soft-sectored disks and add more holes to it and see if it would >work? I don't know how critical the spacing would be. You would have to make an indexing punch, accurate to about 1-2% would be adaquate. The media is otherwise standard 360k DD. An alternate approach is to create a logic element that is synched to the index hole and provides 10 false index marks that corospond to the sector holes. A better drive like teac fd55A or B would work fine as their speed is likely more stable than the old SA400s. Years ago I did something similar to the NS* MDS-A controller to fake it so the indexhole (present in both hard and soft media) was the start and the Index sync logic would free run on finding the index hole. Mostly worked though I didn't try to hard to go further. Allison

25 years, 7 months

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VT78 - lots of questions

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> > The DECmate II is an interesting beast, but unfortunately it >shares the hardware incompatabilities of the original DECmate, though >it 'improves' on them. I have a II that is pretty loaded, with the One that it makes worse is the terminal emulation. Terminal interrupts are not supported in the same way as is TTY at 03/04 so the KL8e emulation is poor except for the most simple programs that poll the IO. The improvements is 32KW of ram (32kw for pannel mode as well) the possibility and support for a hard disk is nice. It's also faster though the DMIII is fasest of the lot. >working again. It sounds like from a software compatability point >that the VT78 might be the better choice for a micro able to run >standard PDP-8 stuff. It's closer but the RX01/2 IO is somewhat different than the omnibus companions. Also the chip versions while very close to PDP-8 are not exact for timing and OPR/ IOT instruction microprogramming is slightly different. Allison

25 years, 7 months

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Zenith laptop

by johnmalc＠conxion.gr

I have just acquired a Zenith Data Systems laptop, model number ZFL-184-01. It appears to be working ok but I have no software for it. It has two low density floppy drives, A and B, but will not boot to a Dos disk so I presume it requires some machine-specific software. If anyone out there can put me in touch with a website where I can download such software I would be very grateful. I specialise in keeping old machines running but this one has me beat. Thanks John Malcolm (in Greece)

25 years, 7 months

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NCR Decision Mate V

by lgwalker＠look.ca

A friend of mine who's just beginning to collect found an NCR Decision Mate V but no K-B. She tried an XT one and got a "keyboard error" so it is working. The info I found on it says it's a CP/M-DOS hybrid needing a special DOS version or CPM 2.2 Anyone out there with a spare keyboard or know a possible substitute ? I understand it had 22 function keys (???) and a QWERTZ layout. If so she'd also likely need a manual. Any further details would also be appreciated. Thanks larry Reply to: lgwalker(a)look.ca

25 years, 7 months

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OT: wtd (uk) old chess computers

by stuart＠zen.co.uk

looking for old chess computer games, esp Vulcan electronics MKV. Please mail if you have anything. Thanks. stu

25 years, 7 months

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OT: help...

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> This one uses only direct mains (160V). That bothers me less as it >> can't reach out abnd get me. > >That's fairly unusual (most manufacturers these days make PSUs that can >be adapted for use on both 115V and 230V). Doen't even have an IEC cord set, strictly domestic. mains come in through EMI line filters and gow through a bridge and cap hence the ~160V. >I'd still be careful of 160V DC at considerable current. It could be >fatal if you connect yourself across it. Personnally, I treat any voltage >over 50V with great respect. Don't have to tell me. I've been kicked mor than once by Oscope supplies and once by RCA VHF low (35mhz) 500W. >But insulation breakdown is relatively rare. There are a lot of >unpleasant voltages on the PCB tracks of most monitors just waiting for >you to touch them though. Which is why I maintain that in general the EHT >is the least of your worries. Some of them really spikey and feel bad too. >I would regard most monitors as being a lot safer to work on than valve >transmitters... No, most monitors these days can stand up without the cover and are mains powered. At least Valve Tx are transformer isolated and commercial gear well caged abd often interlocked. >Right. A total breakdown of the flyback can cause this as well There's >one winding connected from the main output of the PSU (around 100-150V) >and the collector of the HOT. There's normally at least one winding with >a tap connected to chassis. A short between them cna shut down the PSU. > >If it's not a short there, then a shorted vertical output IC will trip >the PSU in some monitors. I suspect the driving transistor to the HOT. >Some monitors, particurlarly multiple-frequency types have _separate_ >output transistors for the horizontal scan and the EHT generation, the >latter driving the flyback. Sometimes there are other transistors (or >MOSFETs) switching capacitors in the various output stages when you >change scan rates so as to retune the flyback. Shorts in any of the >semiconductors will shut down the PSU. sounds like this one. >> the test was to bridge the likely candidates.. no joy. > >I'd suspect _all_ aluminium electrolytics. I once had an Xterminal PSU It's not that old, maybe 6 years max. I'll poke some more but, at 130$ for a new{and better} one I'm not sure it's worth a lot of effort. Allison

25 years, 7 months

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1 Question (CRT), 1 Suggestion (the list)

by webmaster＠ipom.com

Hey all, I have one question... one of the suggestions I received about my CRT was to resolder all the connections at the back of the CRT... and I was wondering... do I need to reheat the solder that's there, or do I need to take that solder off and put a new drop on? Also, to whomever run/owns the list... is it possible to get a digest version up and running. I'm relatively certain there is none currently, I searched the site a month or so back when I joined the list. Thanks. Phil -- Insanity Palace of Metallica www.ipom.com webmaster(a)ipom.com --

25 years, 7 months

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Too much stuff in my basement series : DEC RX50-AA Rev.B Drives free/trade

by claudew＠sprint.ca

Hi Must get back some space in basement Too many of these here. I think I have 3. Maybe 4 Not tested. Good cosmetic shape. I dont wanna collect this type of DEC stuff. Going into garbage soon. Will give them away free or will accept anything that might interest me in return. I collect mostly 197x-198x micros. See my crappy website for more stuff to trade/give away (I dont want money) http://computer_collector.tripod.com Shipping from Montreal, Canada Expect shipping to be around $10CAN/$6US per drive approx. Claude Canuk Computer Collector

25 years, 7 months

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Too much stuff in my basement series : 4 Apple Nubus 4/16 Token Rings cards free/trade

by claudew＠sprint.ca

Hi Once again way too much stuff here in my basement... 4 of these Apple Nubus Token Ring cards. Not tested. They look fine. Assy 670-4418 Will be going into garbage soon (next days) or will give away or trade for anything that can interest me. I collect mostly 197x-198x micros... See my crappy web site for more stuff to give away/trade... http://computer_collector.tripod.com Shipping from Montreal, Canada. Expect shipping to cost about $8 can or $5 US. Claude Canuk Computer Collector

25 years, 7 months

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Software for Northstar Advantage 8/16?

by r_beaudry＠hotmail.com

Hello all, I recently acquired a nice Northstar Advantage 8/16, and manuals, but no software. Would anyone happen to have either Graphics/DOS or Graphics/BASIC for this machine? I have complete manuals for them, but no disks :-( Also, I heard that the Northstars use hard-sectored 5.25" disks. Is this true? Thanks in advance, Rich B. (I subscribe to the digest, so I can't reply immediately ....)

25 years, 7 months

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VT78 - lots of questions

by pete＠dunnington.u-net.com

On Dec 30, 10:18, Jerome Fine wrote: > I have followed this thread, but I am still not sure what a VT78 does. > > Is it similar to a VT103 for a PDP-11? Well, "yes" and "no". It's basically a VT52 with extras which make it a sort of PDP-8, in the same sense that a VT103 is a VT100 with extras that make it a sort of PDP-11. However, there's no backplane, so you can't change the mix of boards (to use a different CPU, SLU, disk controller, etc); the layout is fixed and based around a Harris 6100 chip (roughly a PDP-8E on a chip, with some restrictions -- but I'm not a PDP-8 expert). It uses RX01 or RX02 floppies in a separate cabinet and runs OS/278 which is a modified version of OS/8 version 3 (I think?). I believe it's capable of running some other PDP-8 OS's too -- but I'm getting beyond my knowledge about there. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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IBM-PC and SCSI

by ajp166＠bellatlantic.net

From: Richard Erlacher <edick(a)idcomm.com> >Well, Allison, you're memory's getting to be like mine. I've got three of >the 2266's and they all seem to agree they're about 1GB in capacity. Well, I knew it wasnt a 1mb drive as the smallest thing I'd ever seen as scsi was 10mb. >BTW, the drives don't seem to have a problem with the SCSI-1/SCSI-2 thing, >but the software, often written the way it is because the authors weren't >born before SCSI-2, don't realize that they get the same effect using the >SCSI-1 command set. As stupidly as SCSI is used on PC's, no overlapped >seeks, no command queuing, no disconnect, little use of synchronous mode, >they're not even getting SCSI-1 performance. No question about that. PC software and OSs generally dont use scsi well. My standard of comparison is PDP-11/RSTS or RSX and VAX/VMS where they work a disk hard! Allison

25 years, 7 months

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VT78 - lots of questions

by djg＠drs-esg.com

>From: pete(a)dunnington.u-net.com (Pete Turnbull) > >Um, by your numbering scheme, 7 and 8 are H and J, not E and F. > Yup >> 40 pin connector is numbered >> >> 1 (A) 39 (UU) >> 2 (B) 40 (VV) > >ObNitpick: That's the reverse of the conventional numbering; Berg >connectors with letters have the red stripe at the A end, which is on the >left of the pin header (looking into the pins) while all other headers >which are numbered have pin 1 on the right. Yup, how about Looking into pins of 40 pin male connector numbering is 2 (A) 40 (UU) 1 (B) 39 (VU) I think both the numbers are letters were otherwise correct, just the summary diagram was wrong. I have put this information on my search page, http://www.pdp8.net/pdp8cgi/query_docs/view.pl?table=pdp8docs&id=146 I also added the VT78 to RX01/RX02 cable pinout This is the VT78 to RX01/RX02 BC80D-5K cable pinout (from buzzing out mine) Pins 1-9 of the DB25 go to pins 1-9 of the DB37 Pins 14-23 of the DB25 go to pins 20-28 of the DB37 Pin 25 of the DB25 is attached to the cable shield which is grounded at the other end with a wire to one of the mounting screw on the DB37. David Gesswein http://www.pdp8.net/ -- Old computers with blinkenlights

25 years, 7 months

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PDP-11 SMD drive cabling

by rdd＠smart.net

Season's Greetings, Well, today, I finally removed my CDC 9" SMD disk drive from the living room; getting it down the basement steps was fun. Anyway, now it's only a few feet away from my 11/73 and 11/44. The 11/73, running RT-11 and RSX-11, already has two, much smaller, 8" Fujitsu SMD drives in it. Now then, I've got an RL02 pack labeled RSX-11M, which I'm hoping contains a complete RSX-11M distribution. If I can get an RL02 controller board for the 11/73, will there be any problem with just connecting one of the SMD cables to the CDC drive and copying RSX-11M onto it? Should I be able to boot this from any PDP-11? One note: this CDC drive appears to be configured for drive select 1, not 0... does anyone know where I can get one of those little square buttons used to select drive 0? When I get the intermittent CPU problem on the 11/44 fixed, and find a UNIBUS SMD controller, can I just attach the CDC drive to the 11/44 and have it boot and go, or will I need to reconfigure something? Thanks for any info. that anyone can provide about this! -- Copyright (C) 2000 R. D. Davis "The best way to gain a true understanding of All Rights Reserved Wile E. Coyote on the Roadrunner cartoons is to rdd(a)perqlogic.com 410-744-4900 fly, head-first, off a horse into something like http://www.perqlogic.com/rdd a fence or a tree; trust me, this works." --RDD

25 years, 7 months

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Cloning IDE drives

by wrm＠ccii.co.za

Hi all >From: John Lawson <jpl15(a)panix.com> > > I have a Pentium I wintel box which I've had for nearly five years. >It's 1.9 GB HD has been slowly developing bearing whine for the last >several months. It is getting noticibly louder now and I'm sure this >faithful old HD is nearing the end of it's earthly sojourn. >to move the data. I just did this to a Windoze 95 box. Firstly, I put in the new hard drive and installed Windoze on it. Meanwhile, I stuck the old drive in a Linux box and made a big tarball. Then, I restored the tarball on to the new hard drive. Reasoning: the tarball gets all the files, except the bootfiles, and those get sorted out by the new install. Won't work (yet) for NTFS, tho. W

25 years, 7 months

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More VAX info ...

by cmcmanis＠mcmanis.com

I've updated my "House of VAX" pages at <http://www.mcmanis.com/chuck/computers/vaxen> Check it out, especially the 'panels' section that talks about console bulkheads. --Chuck

25 years, 7 months

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IBM-PC and SCSI

by ajp166＠bellatlantic.net

>I recently picked up a Fujitsu M2266SA HDD. This is a 1M SCSI 5 1/2 " drive with a black bezel like the IBM-PC MFM drives and Ah thats 10mb if memory serves. >will fit in the same space. The vendor said it was SCSI-1 but TheRef says it is SCSI-2 and Fujitsu doesn't say. Difference is max data rate and some higher level commands added. SCSI-II is backward compatable. >I have a heavily modified PC(5150) with an Intel 386 Onboard card as Allison has on her Leading Edge 8086 (BTW, I have a lead >ajp < to someone that has the mem-expander daughter card) It's an Inboard386... a meg or memory for that would be great if possible. >However I have no info on whether it would be possible to add a SCSI card to an IBM-PC. I have an Adaptec 1522A ISA SCSI card and likely others in my card box. Was there a SCSI card for the PC ? If so, would this possibly, with this configuration, allow you to It's doable, the only reason SCSI was not commonplace in PCs the was the significantly greater cost at the time. Also back then PCs could barely enjoy the potential performance advantage. Allison

25 years, 7 months

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Memtest86, then HD won't boot.

by Glenatacme＠aol.com

In a message dated 12/29/2000 9:13:20 PM Eastern Standard Time, mikeford(a)socal.rr.com writes: > Like I said, not really a call for help, just a this is what I did and > where it got me, so be carefull with memtest86. I downloaded and ran Memtest86 on my Cel 500 w/144 MB SDRAM. The memory passed and the machine suffered no harm. As Sellam and Wizard suggested, it was probably just a coincidence that your hdd croaked after running this program. Also, your mention that it took you 3 attempts to create the bootable disk suggests that your download may have been faulty. If the code was damaged during transmission then it's possible that running the program could have caused trash to be written to the hdd. Or maybe your fdd is flaky and the boot disk wasn't right. A bummer, at any rate :>( Glen 0/0

25 years, 7 months

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VT78 - lots of questions

by pete＠dunnington.u-net.com

On Dec 29, 15:46, David Gesswein wrote: > >From: pete(a)dunnington.u-net.com (Pete Turnbull) > >> 40 pin connector is numbered > >> > >> 1 (A) 39 (UU) > >> 2 (B) 40 (VV) > > > >ObNitpick: That's the reverse of the conventional numbering; Berg > >connectors with letters have the red stripe at the A end, which is on the > >left of the pin header (looking into the pins) while all other headers > >which are numbered have pin 1 on the right. > > Yup, how about > Looking into pins of 40 pin male connector numbering is > > 2 (A) 40 (UU) > 1 (B) 39 (VU) > > I think both the numbers are letters were otherwise correct, just the > summary diagram was wrong. That wasn't what I meant. Berg label the connector pins starting from the opposite end of the connector from the rest of the world, so what I meant was that on actual connectors, the pins are: 39 (B) ... 1 (VV) 40 (A) ... 2 (UU) or more completely: 39B 37D 35F 33J 31L 29N 27R 25T 23V 21X 19Z 17BB 15DD 13FF 11JJ 9LL 7NN 5RR 3TT 1VV 40A 38C 36E 34H 32K 30M 28P 26S 24U 22W 20Y 18AA 16CC 14EE 12HH 10KK 8MM 6PP 4SS 2UU Thus on a cable with a Berg connector, the stripe corresponds to pin A and goes on the left (as you look into the male connector), and on any other similar connector (3M, T&B Ansley, ITT, Amphenol, Fujitsu, Molex, etc pin headers but not D-connectors, for example) the stripe corresponds to pin 1 but goes on the right. That's one of the reasons so many DEC cables have a "THIS WAY UP" sticker. Of course, if you use the conventional numbering above, you need to change your table as well (I've put the numbers in brackets, since it IS a Berg connector, after all): DB25 40 pin header 1 C (38) 14 D (37) 2 H (34) 15 J (33) 3 M (30) 16 N (29) 4 S (26) 17 T (25) 5 W (22) 18 X (21) 6 AA (18) 19 BB (17) 7 EE (14) 20 FF (13) 8 KK (10) 21 LL (9) 9 PP (6) 22 RR (5) 10 SS (4) 23 TT (3) 11 UU (2) 24 VV (1) I've put AA where you had CC -- both are ground on the M7744, but it seems more logical to pair AA and BB, rather than BB and CC. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 7 months

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VR13-DA specs?

by cmcmanis＠mcmanis.com

I've got a DEC monitor labelled VRT13-DA, it has a 9 pin color input. Does anyone have the specs for this monitor? Can it do 1280 x 1024 or is it 1024 x 768? Does anyone know the pinout for it? --Chuck

25 years, 7 months

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OT (sortof) wanted items (cart & logic analyzer stuff)

by west＠tseinc.com

I'm looking for some accessory items related indirectly to my computer collecting/repairing - can't seem to find them, so thought I'd ask here: I love my HP 1631D logic analyzer, but it takes up way too much real estate on my bench. I'd like to get a mobil cart for it, but virtually all the scopecarts I've seen (like the tek 200) are for small scopes & such... the 1631D analyzer is 16.5 inches across the middle, and 17 inches across the front (the bezel sticks out a bit on each side). Would anyone have a scope cart (like a tek 212 or similar) that is for wider instruments that is excess and would consider selling/trading? Second, I'm looking for various disassemblers for the 1631D... these came on 3.5 floppy, but I'm not sure what all disassemblers were available for it. Anyone got this software laying around? If anyone can help, contact me off-list at west(a)tseinc.com Thanks! Jay West

25 years, 7 months

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OT: help...

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >Oh, they're no worse (for HV) than any other mains-powered SMPSU. We've >had this discussion before, but I still maintain that the most dangerous >voltage in a monitor is the rectified (and maybe doubled) mains -- 400V This one uses only direct mains (160V). That bothers me less as it can't reach out abnd get me. >at essentially unlimited current. And it's on bare PCB tracks. A lot more >likely to do you harm than the low-current 25kV EHT supply that's >impossible to touch by accident. There is insulation breakdown, I've been nailed once. I have experience with HV and High Power as well as big RF so I know how to avoid getting wacked. I just generally dislike working on TV/monitors. >As you doubtless realise, you've got a SMPSU that's shutting down because >it thinks it's overloaded. >From testing that woudl be the case. >The most likely cause of a real overload is a shorted HOT (Horizontal >Output Transistor), possibly damaged because of shorted turns in the >flyback transformer. So testing that transistor (on a heatsink near the >flyback) is a good first move. Testing is that it's ok. >The other thing that monitors suffer from is dried-up electrolytics, >which therefore have a high ESR. These can cause all sorts of faults, the test was to bridge the likely candidates.. no joy. >including a PSU that keeps on shutting down. I'd test all such capacitors >in the PSU area. This might even be the cause of the long warm-up time. Would seem that way but that was before, not it does not power up. Since it's SVGA and prints for it are unlikely and some of the parts are oddball enough to not warrent digging too deep. Allison

25 years, 7 months

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Cloning IDE drives

by jpl15＠panix.com

The subject (I think) is on topic, the hardware to which I'm refering is a little too new for us, but I'm gonna ask anyway. I have a Pentium I wintel box which I've had for nearly five years. It's 1.9 GB HD has been slowly developing bearing whine for the last several months. It is getting noticibly louder now and I'm sure this faithful old HD is nearing the end of it's earthly sojourn. My fantasy is that I can buy another IDE drive (of somewhat larger capacity) and just somehow copy the whole thing on the original down to the new one, without having to go thru the backup/restore/re-auth all the programs I've got on it. I have 8mm streaming tape backups of the system, but that's a pain. I'm living in southern India so 'just pop in to Fry's and get a package like DriveCopy III' is not an option. :) Any advice/how-to/magic formulae? Cheers and Happy NuYeer John

25 years, 7 months

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VAX KA680 compatible memory?

by cmcmanis＠mcmanis.com

I picked up a KA680 CPU today (yipee!) replaced my KA670 and tried firing it up. It did not like my memory (I've got 96MB (1 x 32MB and 1 x 64MB) I didn't think there was such as thing as MS680 memory but did find one obscure reference on another web page to a 32MB module. Does anyone know if the MS670 memory can be used with the KA680 and if not do I have to get MS690 memory? --Chuck

25 years, 7 months

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Nice article on computer music pioneer Barry Vercoe

by vcf＠siconic.com

Check it out here: http://www.media.mit.edu/EMS/bv-interview.html Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 7 months

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M2266SA Scsi Drive

by cmcmanis＠mcmanis.com

>The Fujitsu M2266SA is 1079.10 MB 15 hds 1658 cylinders 14.5 msec seek 5.25 >in Full Height SCSI RLL 1,7 aoto landing zone. This is one of the Sun "standard" drives so all the formatting programs know about it. It is also a nice drive, but a hot drive. Do _not_ put this drive in your standard wimpy external SCSI enclosure, make sure it gets some air. I've burned myself on these drives they got so warm (worked great though!) --Chuck

25 years, 7 months

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VAX 6000-510 for sale/trade in Central CA

by Scott.Miller＠vandenberg.af.mil

I acquired this beast from a multinational mining corporation that had used it up until four or five years ago, at which point it was shut down and left in the climate-controlled computer room. I believe some of the RAM was leased and was returned, but other than that the machine was apparently in operating condition. Unfortunately, it was on the second floor of the building, and without renting a crane the only way to get it out was to disassemble the entire thing and haul it by hand down three flights of stairs. Since then, it's been mostly reassembled (all of the parts are in place but not connected) and has been sitting in my garage. It's been there for a few months, and I'm still not sure when if ever I'll have a chance to really work on it (and I've also got this dream of someday being able to park a car in my garage!) so I'm putting this message out to see if there's someone out there who could give the machine a better home. I got it for free (not counting the doctor's bill for spraining my wrist carrying RA-92's) but I put a considerable amount of effort into moving it (and moving it again when I moved), and in getting the company to give it to me in the first place. Also, I've had offers from parts resellers for enough money that I'd rather not just give it away, but I'd rather see it put to good use than broken up for parts. So if you're interested, make me an offer - I'll consider cash, Alpha or PC equipment, SCUBA gear, or anything interesting that takes up less garage space than a minicomputer. =] Pictures: http://home1.gte.net/web1006g/vax1.jpg http://home1.gte.net/web1006g/vax2.jpg Parts: T2018 T2020-00 T2023-00 T2020 T2053-CL (qty 2) T2052-00 T1035-00 T1043-00 DCMSSB-01533 (Clearpoint) SA-850 storage system with 4 RA92's and another drive of a type I forget at the moment. I've also got lots of misc. parts including TK50's, an InfoServer 100, and a couple of MicroVAX II's with the following parts: SCD-RQD11/EC DELQA (qty 2) DQ153 DHV11 (qty 2) M7555 Grant Continuity Card (qty 2) M7546 (qty 2) M7609 (qty 2) M7606 (qty 2) CMX-831 (Camintonn 8MB card) (qty 2) RQDX3 M7513 M3106 I've got a couple of VAXstation 3100's that I'd rather not part with but might consider as part of a trade. This is a pretty quick inventory of the system - if anyone's interested I can provide more pictures and details of parts. As for transportation, I'd imagine it would cost a lot to get this thing shipped anywhere, but when I moved across town I was able to move it pretty easily with only two people (one to offload) using a fairly cheap rental truck with a hydraulic lift. If you're anywhere within driving distance of California's central coast, that'd probably be the easiest way to go. Scott Miller

25 years, 7 months

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OT: help...

by ajp166＠bellatlantic.net

>If you are not scared of HV, you might wanna open it up, look around Respoectful yes, scared no. I've done my bit with HV in high power Vacuum tube transmitters. >carefully for swollen. leaky or discolored capacitors or exploded >components.... You might see something obvious. If not, well...unless >you have experience in fixing monitors...it will be tough... None seen. I have extensive troubleshooting background and tools. >Most monitors have slow HV discharge. If not use proper HV discharge >procedure... I have my tool for that. (murphy stick) >Search the net for that model no...some sites have repair briefs that >talk about common problems for certain models... Nothing found Allison

25 years, 7 months

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IDE Cloning thanks and a 'second that thought'

by dhquebbeman＠theestopinalgroup.com

> John Lawson wrote: > > > snip... > > > I ain't got nothing to hide, it's just the *idea* > > of how easily such schemes lead down the slippery slope > > into a subtle kind of 'fascism' for want of a better word. > > > > Taken along with the rapidly-forgotten little bit of > > intelligence that Our US Supreme Court has apparently > > sanctioned selective 'convenient' disenfranchisment, > > and nobody seems to much care... > > > > Sigh. I'm getting Old and Cranky and Way, Way off topic. > > I think there is a proto-fascist gene, or two. It has to be resisted > constantly, or we slip into it. I think you're right... I drive a lot, and the condition of roads is a big issue with me... to heck with the trains running on time, if a Paver runs for President, I'm there! ;-) -dq

25 years, 7 months

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IDE Cloning thanks and a 'second that thought'

by jpl15＠panix.com

Many thanks to all who took the time to help me out with the IDE clone question. I will attempt to perform the operation on the Computerworld site, and if that don't work ( and I see no reason why it shouldn't) I'll get down a copy of Ghost from the Net and use that. Thanks again y'all. On the Proposal to Individually Brand (R/O) all mass storage units for Personal Computers: FEH!!!! FEH!!!! FEHFEHFEHFEHFEH!!! I would think it might be something to consider, to salt away a reasonable quantity of large-ish drives, against the day when Large Male Sibling requires that the contents of your filesystem be scrutinized once each day, for "...material which evidences a substantial deviation from accepted societal norms and mores, or any data appearing to fail the Anti Terrorism, Child Protection, Dissident, Criminal, Unauthorized Encryption, Sensitive and Classified Data, and Alien Infiltration Sieve Monitor, as provided for in the Comprehensive Homogenous Data Interchange, Content, and Format Act of 2005 et.seq." And I neither wiegh 300 pounds, have a full unkempt beard, or collect guns, or even own one. I ain't got nothing to hide, it's just the *idea* of how easily such schemes lead down the slippery slope into a subtle kind of 'fascism' for want of a better word. Taken along with the rapidly-forgotten little bit of intelligence that Our US Supreme Court has apparently sanctioned selective 'convenient' disenfranchisment, and nobody seems to much care... Sigh. I'm getting Old and Cranky and Way, Way off topic. Happy NuYeer to All John

25 years, 7 months

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OT: help...

by mmcfadden＠cmh.edu

I have found that if I do a google search on the model of the monitor and the specific problem I usually find some links. The best one for monitors I have found is the following site. http://www.anatekcorp.com/faq/faqpro.htm My IBM P70 was clicking off and on. I also found the same pointer via google on which capacitors on my Toshiba TV were dried out. I got the TV out of a dumpster and it worked for 2-3 years and now it has problems, dry capacitors. Try google, altavista, and then yahoo. I use the advanced text search method on altavista. You must be persistent. Mike mmcfadden(a)cmh.edu

25 years, 7 months

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M2266SA Scsi Drive

by truthanl＠oclc.org

According to the Micro House "The Hard Disk Technical Guide" by Douglas T Anderson ISBN 1- 880252-27-9 The Fujitsu M2266SA is 1079.10 MB 15 hds 1658 cylinders 14.5 msec seek 5.25 in Full Height SCSI RLL 1,7 aoto landing zone. So He Has A gigabyte drive Sincerely Larry Truthan, a digest subscriber. truthanl(a)oclc.org

25 years, 7 months

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Cloning IDE drives

by jeff.kaneko＠juno.com

This garbage will never fly. I'd buy *LOTS* of non-CPRM drives right *now*, as they will be in very high demand around this time next year, if these clowns get away with this. On Thu, 28 Dec 2000 20:48:37 -0600 (CST) Paul Thompson <thompson(a)mail.athenet.net> writes: > > Here are some (OT) disturbing developments in the (OT) field of IDE > cloning. > > http://www.theregister.co.uk/content/2/15620.html ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 7 months

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PDP-11/23 Cpu

by ajp166＠bellatlantic.net

From: SP <SPEDRAJA(a)mail.ono.es> >Hello to all. I'd like to know what kind of expansion or options >could be attached to this machines: > >PDP-11/23 >---------- > >* KDF11-B 5014313C M8189/DIGITAL >* Q-BusMosMemory 5014500C M8067/DIGITAL >* DQ614S153040 Rev F/DILOG >* System Interface 11/03/ESI >* 808836-05 Rev K/Datasystems Design >By the moment I have no disk for it (maybe in a future). I'd like >to know if could be possible to put some class of disk or >diskette unit, even tape, eventually different of DEC stuff. DEC RX50 using RQDX2 or RQDX3 card will get yo floppy and mfm hard disk, That DIlog or the DSD card may support disks as well. PDP-11/23B is basic machine you have and that is Q-bus so finding cards for it should be easy as the Microvax-II and later also used the same bus. It was quite popular. Check PUPS PDP-11 unix preservation socity for software. Allison >I suppose than this could be possible by some SCSI card, >but my experience with this is limited to the use of >emulators like Bob Supnik's or E-11. > >Thanks for all. Best Regards. > >Sergio > >

25 years, 7 months

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How to clone an IDE drive (OT)

by Glenatacme＠aol.com

Go to: http://www.maxtor.com/Maxtorhome.htm and download MaxBlast Plus. This is a 1.4 MB file, and it is FREE. Be sure to read the directions on the download page. This utility will create a bootable MaxBlast disk which will work under any version of DOS or Windows. Install your drive. Boot from your newly-created MaxBlast disk. Follow the simple directions. You may choose to simply partition and format your new disk, or you may clone an existing disk. We use this every day in our shop when we set up a new drive or upgrade a customer's existing drive. It's simple, easy, and fast. If there is a gross hardware problem with the motherboard or drives, it will fail. Also, if the data to be cloned is garbage, the program may bomb. Otherwise, MaxBlast has a lot of advantages: * Will clone or partition/format any brand of drive. The utilities shipped with Seagate or WD drives sometimes only work with Seagate or WD drives. * FAST partition/format. Where the DOS utilities can take 10+ minutes, MaxBlast works in seconds. * Removes junk. If the drive you are trying to set up has previously had a bootlock installed, or EZ-BIOS, or if any other program is embedded in the master boot record, MaxBlast will delete it without hassle. I use this all the time when I want to wipe a drive and it's data is so scrambled that even the volume name is trash. Under DOS, you are required to enter the vol name in order to delete a partition, which may not be possible if the vol name has been corrupted and now consists of unprintable characters. MaxBlast has no such requirement. If this isn't clear contact me off list. Good luck! Glen Goodwin 0/0

25 years, 7 months

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DSL Rate

by kyrrin＠bluefeathertech.com

I just figured out that someone asked me how much I was paying for my DSL >from Qwest. Forgive me, but I can't find who the original poster was. Anyway: Base rate for the line is $29.95/mo. Round to $30. Add to that $35/mo for Qwest.net (the ISP) to be the host. Includes web space (which I no longer use) and mailboxes (which I won't be using much longer). Finally, tack on $15/mo for a private block of eight static IP's. Three are reserved to be the network, gateway, and broadcast addresses for my subnet (I'm subnetted off a class A block), and five are user-definable, function-wise. Subtract one more for the router interface, and that leaves me four usable. Total: A little under $80/month for everything, and that includes a guaranteed data rate of 256K down (I get 384 during rainy weather, and 512K during dry), and 272K up. If anyone knows of another ISP that can give me my own subnet for $50/month or less, and equivalent bandwidth, please say so. ;-) Hope that helps. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

25 years, 7 months

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OT: Firewall running OpenBSD, why?

by yoda＠isr.ist.utl.pt

I became very curious after I read a couple of posts assuming OpenBSD as the best OS for a firewall box. Could anyone explain (or at least point out links) why OpenBSD would be more appropriate for a firewall? I am planning the instalation of a firewall, and I was thinking about a linux box, possibly running the LRP package. I do not intend to raise any OS-war, but rather to understand the arguments for each side. Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and PhD Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

25 years, 7 months

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