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

by chenmel＠earthlink.net

I recently acquired an exciting new (old) machine, an Intel MDS 800, known as the 'Blue Box.' It's the 1975-era 8080 based box that kicked off CP/M. My particular machine was intended as an 8051 ICE box, it has the 8051 emulator pod and external PROM programmer. The system came complete with a big box of what appears to be complete docs and a lot of software on 8" disks. There are four or more different versions of IRIS, a disk labeled 'CPM' which I hope is a boot disk, and multiple versions of other Intel tools, including the targeted 8051 development tools. I paid a fair amount for this system, and am going to go slowly at bringing it up. It's been stored a long time and there's a troubling amount of surface rust on some of the screw heads and exposed hardware. I've popped it open and some of the ICs (mostly TTL) have corrosion on the leads. I have a few opening questions for others who have restored hardware in similar condition: should I remove the corrosion on IC leads, or do I run the risk of 'removing' the leads. The circuit boards look really good, so worst-case I will replace some of the chips. What is the opinion about this kind of servicing? The chips in question are all (so far as I have investigated) common 7400 series (some Schottky) TTL gates. Do people consider it as 'damaging' to the 'credentials' of a piece of classic hardware to replace chips with others with significantly different date codes? This is going to be a long term project for me, I fear, because I want to do it right. This machine has a built-in CRT display so I might be forced to do some (something I almost always refuse to do these days) video monitor troubleshooting. The machine has a built-in 8" floppy, which I assume is the low-density original, and an expansion case (third party) with two newer and higher density drives. Is there a source for new or NOS 8" floppies out there? One thing for certain that I'll be doing early after getting this machine up and running is a backup of all the media that came with it (a fair amount, probably 30-50 disks, many of which are Intel branded originals). Lots more questions and comments likely to come on this project. Scott

21 years, 5 months

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PDP-11/34 in the UK

by classiccmp＠blueyonder.co.uk

I have listed a PDP-11/34a on ebay - I have had this system since leaving college 17 years ago and it has been well looked after. Unfortunately I now need the space, so the system is up for sale. The buyer will need to collect in a van, as this lot is bulky, heavy and fragile. You can see details and some photos at: http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ViewItem&rd=1&item=5135356834&ssPageName=STRK:MESE:IT This is a complete system with drives, terminal, manuals, cables, spares etc. There is no reserve and bidding opens at 40UKP. ---- Francis

21 years, 5 months

1
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Need pinouts for MDB Systems DLV11J serial line interface

by pete＠dunnington.u-net.com

On Oct 30 2004, 17:02, Vintage Computer Festival wrote: > > I've got a serial line interface in this LSI 11/23 system I've got here. > It's made by MDB Systems and is model DLV11J. I've got the manual for the > DLV11 but it gives the digram for one big 40 pin Berg style connector, > whereas the DLV11J has 4 10-pin Berg style connectors. > > Does anyone have the documentation for this? Not for that make/model, but for a DEC DLV11-J, yes. The DLV11 is a single RS232 interface, by the way, and the DLV11-J has 4 serial lines. Looking into each 10-pin socket, the pinout is: _____________________ | | | 9 7 5 3 1 | | | | 10 8 6 4 2 | |_____________________| 1 UART clock in or out (not normally connected) 2 Signal ground 3 Tx + 4 Tx - 5 Signal ground 6 Index position - no pin 7 Rx - 8 Rx + 9 Signal ground 10 +12V via fuse F1 (if fitted) The receivers are differential. If you're using them for an RS-232 device, connect a link between pin 7 and one of 2, 5, or 9, to make the RX- line ground-referenced, then use 3 for TxD and 8 for RxD. Loopback connectors for testing usually jumper 3 to 8 and 4 to 7 (RS-422 mode) but sometimes jumper 3 to 8 and 7 to 9 (RS-232 mode). On a DEC DLV11-J, there are several wirewrap jumpers to set baud rate, word length, address, etc, and also two to set channel 3 to the console address, if required. Channel 3 is the connector nearest the left as you look into the back of a machine, with the board fitted component-side up. The jumpers are labelled C1 and C2; link X to 1 if you do want the console on channel 3, or X to 0 if you don't. There's also a set of three labelled B/X/H which determine what happens if you send a break if Ch.3 is the console. Jumpering X to B makes the system boot (it grounds the BINIT line), jumpering to H makes it halt (grounds the BHALT line). Leave it disconnected if you don't want either action. > And now for a really stupid question: > > Can the 11/23 run RT-11? It will run it very well. Several of my 11/23s came with RT-11 of one flavour or another. -- Pete Peter Turnbull Network Manager University of York

21 years, 5 months

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Who is going to VFC 7.0?

by swtpc6800＠comcast.net

I am staying at The Residence Inn in Mountain View. (The official hotel of The Vintage Computer Festival .) I have not been to the San Jose area in about 5 years. What is interesting there? (Geek stuff). Michael Holley www.swtpc.com/mholley

21 years, 5 months

4
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teco macros for teco=emacs?

by ron.hudson＠sbcglobal.net

This message really needs to go to the "rsts mailing group" but I haven't found such a group yet... :^) so I am calling again on the Teco wizards in the two groups mentioned above. Emacs was originally a bunch of teco macros right? teco/vt is a bunch of teco macros..... Could one setup teco/em ? a bunch of teco macros that emulate some simple useful subset of emacs?

21 years, 5 months

4
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OT mail spam question

by pete＠dunnington.u-net.com

On Oct 30 2004, 6:17, Vintage Computer Festival wrote: > > I just moved my mail server to my internal office network. The IP block > I've been assigned apparently used to be used for dynamic DSL users. The > problem is, at some point someone used one or more of these IP addresses > to send out spam, enough so that my entire Class C block is blacklisted in > some database. You don't have a Class C, you have a block of 8. Looks like a DSL to me :-) In fact, the netblock which your addresses are part of *is* used for DSL lines, including dynamic ones, as far as I can see -- and the netblock as a whole is bigger than a Class C. > I'm getting reject messages occasionally when I try to send someone > e-mail, like so: > > ----- Transcript of session follows ----- > ... while talking to smtp.secureserver.net.: > >>> RCPT To:<mike(a)sccpc.com> > <<< 553 66.120.4.* mail rejected due to excessive spam (Spam received from > 66.120.4.201) > 550 5.1.1 <mike(a)sccpc.com>... User unknown > > It's a very small percentage of my mail, but it's keeping me from > responding to people sending me inquiries in some instances. > > How the *hell* do I track down what fuckwit is blacklisting my address? It's not in the obvious places like MAPS, so short of asking Google for all the blackhole lists, your best bet is to ask one of the sites that's blocking your mail. It could conceivably also be something to do with your broken DNS. The name servers don't return reverse lookups, and don't list an MX record. If you're running your mail server from a DSL line, that's the risk you take. It's too easy for spammers to take a short-term contract, get an address, abuse it, and disappear before the ISP can do anything about it. It's also common for inexpert users to misconfigure SMTP servers to be insecure in a spectacularly large number of ways. The easiest way to counter such problems is to list dialups and dynamically-allocated IPs (or the blocks they're in) in one of the DULs. Often the address space owner will do that. You could try asking Pac Bell if they have. The proper way to do it is to have your mailserver talk to a "smart host" that is well managed and hasn't ended up on a blackhole list. If you're bothered about the possibility that it might go down at a time beyond your control, and you use a recent version of sendmail, you can specify a fallback smarthost, I think. You ought to upgrade anyway, what you're using is fairly old [wonders if he should hide his own headers on this email ;-)]. Several ISPs will let you buy mail relay rights for very little money, and you can use SMTP AUTH to be able to talk to servers that know you, even when you're relaying through them. -- Pete Peter Turnbull Network Manager University of York

21 years, 5 months

1
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Anita Calculators

by d0b＠poetworld.net

Hi Lee. I saw your post on Classicomp.org about your Anita. That wasn't just a cool find; that was a once in a lifetime find, congrats. I paid a lot more for mine, but then i live in California and we didn't get too many of them out here. Just a lot of those ugly babes from "Baywatch". Mine didn't come with a manual and there are a couple of functions that I can't figure out yet. Is there any way i could get a copy from you? I'll share it around here too. There is a girl in New York who maintains a website for manuals at http://www.wass.net/manuals/ and I'll mail her the "Original copy" and credit it to you if you can send me one. Let me know if you can do it and thanks - d

21 years, 5 months

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TRS-80 Printer "Interface" Cables

by mbaldwin262＠sprintpcs.com

Hello all, Can anyone tell me the difference between the two different TRS-80 Model 1 Printer Interface Cables? These are the cables used to connect a Line Printer directly to the expansion bus on a Model 1 without using the Expansion Interface. They are ribbon cables with a "little black box" midstream containing the printer port circuitry. The 26-1411 was originally for the LP1 and the 26-1416 was for the LP2. Now, I know that these also worked on subsequent Line Printers, and my understanding was that the 26-1411 worked on most while the 1416 only worked on a few (!) What exactly is the difference? Does anyone know? I'm coming into possesion of a LP3, but I only have a 26-1416 cable.... I don't know if this will work (I'm very confused!) Thanks in advance, Mike -------------------- This message was sent from a PCS Phone from Sprint. Get a free PCS Mail account! Sign up via the Web Browser on your Sprint Phone or at http://www.sprintpcs.com.

21 years, 5 months

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OT mail spam question

by vcf＠siconic.com

I just moved my mail server to my internal office network. The IP block I've been assigned apparently used to be used for dynamic DSL users. The problem is, at some point someone used one or more of these IP addresses to send out spam, enough so that my entire Class C block is blacklisted in some database. I'm getting reject messages occasionally when I try to send someone e-mail, like so: ----- Transcript of session follows ----- ... while talking to smtp.secureserver.net.: >>> RCPT To:<mike(a)sccpc.com> <<< 553 66.120.4.* mail rejected due to excessive spam (Spam received from 66.120.4.201) 550 5.1.1 <mike(a)sccpc.com>... User unknown It's a very small percentage of my mail, but it's keeping me from responding to people sending me inquiries in some instances. How the *hell* do I track down what fuckwit is blacklisting my address? I appreciate the efforts people go through to thwart spam but this blanket blocking bullshit really pisses me off. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years, 5 months

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FS: The Digital Group docs, virgin Apple II board

by waltje＠pdp11.nl

Hi, To make room for more DEC gear, I need to let go of some of the other stuffI seem to have accumulated over the years. Right now, these items are available: 1x Apple II mainboard, virgin. 2x Various The Digital Group manuals, schematics and several tens of issues of their "JUDGE" and "BRIDGE" publications. Vintage early to mid 70's. If you're interested, make me a reasonable offer off-list. I will ship these outside of Holland, as they're small. Cheers, Fred -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://VAXlab.pdp11.nl/ Visit the Archives at http://www.pdp11.nl/ Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA

21 years, 5 months

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Horrifying picture - mainframe graveyard

by cbajpai＠comcast.net

I saw this very cool front panel for a mainframe..but was horrified to see the picture below! Breaks my heart. -Chandra http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=513456 7267&rd=1> &category=1247&item=5134567267&rd=1

21 years, 5 months

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386/25

by trash3＠splab.cas.neu.edu

I have two 386-25 boards. One is an AMD 386sx-25, used and I might have the documentation. THe other is an unused (NOS) 386sx-25 highly (for that time) integrated motherboard, with floppies and documentation. Original ad from TImeline, inc is included. 6 slots for memory, up to 16MB memory, ide interface, floppy interface, serial, paralle, mouse, keyboard and VGA. I paid $100, never got to use it. THe one issue is that it only has one slot, made for a riser board. I also have a riser board, with 3 isa slots on one side and two on the other. Joe Heck

21 years, 5 months

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HP 25 and HP55

by dwight.elvey＠amd.com

>From: "Ron Hudson" <ron.hudson(a)sbcglobal.net> > >I just got some HP calculators! > >Now I have some questions :^) > >--Anyone have a spare manual for either? > >--Have pointers on replacing the battery pack on the 55? >(it seems to be 3 AAA nicads) > >--Anyone have any pointers on cleaning up leaked nicad crystals? >what is that stuff anyway? Most likely potasium hydroxide or similar base. You need to first wash with water, then 50% mix of white distilled vinegar followed by a rinse and dry. > >I do have cases and power suplies. > >-- I took apart the 25's battery pack and replaced the nicads with > nickel metal hydride cells (the same ones I use in my camera) Not a good idea. Nickle metal hydrides need different types of charging. The won't last long with a NiCad charging circuit. > >-- Is is ok to run the 55 on wall power supply without a battery > pack installed? Don't know. You should be able to find NiCads to replace. Check out JameCo. Also, we have a place called Batteries Plus that will weld together NiCad stacks. Dwight > > >Will trade the 55+case+powersupply+leakybatteries(in a ziplock bag) >for complete set of docs for the 25 + 1 good application book, >preferably games :^) > >

21 years, 5 months

4
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LF: DEC VAX 4000/xxx

by trash3＠splab.cas.neu.edu

I have a couple of 4000/100 units, nothing else. Joe Heck

21 years, 5 months

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OT: Help ID old IBM electric typewriter

by rich_bramante＠yahoo.com

Found this clearing out storage. Tried to ID via google, not able to conclusively do so. Is it a Model C? Looks at least a little like one. Is it worth anything or should I scrap it? Seems too heavy to ship it reasonably. Thanks if you have any ideas. Pics here: http://boston.craigslist.org/wan/47147260.html __________________________________ Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard. http://promotions.yahoo.com/new_mail

21 years, 5 months

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new find: an Intel MDS 800

by melamy＠earthlink.net

I better be more specific about this before I get corrected for generalizing... you created a block of memory called an IOPB and told the controller where it was. The controller would go out to memory and get the command, etc. The cpu could either "poll" the controller for status or set up and respond to an interrupt that signified completion of the command. The floppy interface for the bit slice was pretty well abstracted in that the cpu wrote commands to I/O ports and the data off disk was dma'd to and from memory. You told it what to do, where to put it, and how much to data. The cpu didn't have to do anything else except wait for completion of the operation.

21 years, 5 months

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new find: an Intel MDS 800

by melamy＠earthlink.net

I thought that the SD controller board set was also bit slice (the series II internal was of course 8271 based). They handled the same comands at a different I/O location. The only format difference between SD and DD was the DD was proprietary of course and had 52 sectors instead of 26. That made the OS software easy to handle either density rather than creating blocking schemes that CP/M did which would require more software handling. Intel kept ISIS low in memory and had a program load address that did not let you make the OS any bigger than when ISIS first came out. The advantage was that as long as you had 32K of memmory you could run any Intel software and putting 30K more of memory in the system was immediately available (unlike cp/m). The floppy interface for the bit slice was pretty well abstracted in that the cpu wrote commands to I/O ports and the data off disk was dma'd to and from memory. You told it what to do, where to put it, and how much to data. The cpu didn't have to do anything else except wait for completion of the operation. -----Original Message----- From: "Joe R." <rigdonj(a)cfl.rr.com> Sent: Oct 30, 2004 10:20 AM To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: new find: an Intel MDS 800 That's interesting. I've never even heard of a white MDS-800 before. Was it painted white originally or was it painted over an orginal blue one? I think you need a lot more than rewriting the BIOS to handle DD disks. Intels DD controller has a 3000 series bit-slice CPU and some other odd circuitry to handle DD. Joe

21 years, 5 months

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access to BIOS of DECpc

by GOOI＠oce.nl

Hi Megan, >from the mails I've got it is clear that the DECpc 320p supports just a few hard disk types and these are "hard-coded" in the BIOS. Worse: even the utility to access the BIOS does not support any change of the few known hard disk types. A few days ago was a good explanation of how a Disk Manager works, and that's what I did. You need a floppy to boot (MS)DOS and the OnTrack Disk Manager of the hard disk manufacturer or the OnTrack version that accepts any brand. The first one for a specific disk manufacturer can be found on various sites, the latter one must be bought. Step 1. install the new hard disk (*any* storage size, as long as the disk fits physically :-) Step 2. have an *empty* floppy available. Skip if you're always lucky... Step 3. boot to DOS from the boot floppy. Step 4. start Disk Manager (DM.EXE) from the OnTrack floppy. DM detects the disk geometry and presents something else to the BIOS so that the BIOS can work with the disk. Without OnTrack the BIOS does not know how to read the disk, so better make a bootable copy on the floppy mentioned in step 2 when OnTrack asks if you'd like to do that! - Henk, PA8PDP. -----Original Message----- From: cctalk-bounces(a)classiccmp.org To: General Discussion: On-Topic Posts Only Sent: 30-10-2004 8:16 Subject: RE: access to BIOS of DECpc >I feel a bit silly, but it was late last night is my excuse. >"DECpc 320P" in Google gave a link to floppy images on a COMPAQ site. >I will try them this evening, but it is good to know that the DECpc >"knows" a limited number of hard disks. If I can 'upgrade' to some >300 Mb of the 420 Mb capacity it is still better than the 40 Mb that >I have available at this point. Years ago, I found out what I thought to be sufficient info to upgrade my 320P from the 40mb drive it had, to a 120mb I had been able to obtain... apparently type 46 and type 47 in the BIOS are user definable. And I guess I didn't have all the info, or I touched the wrong area because I essentially 'bricked' my 320p. It no longer boots. If you do find out how to do it reliably, I'd be interested in trying to fix it. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com | | Member of Technical Staff | megan at savaje.com | | SavaJe Technologies, Inc. | (s/ at /@/) | | 100 Apollo Drive | URL: http://world.std.com/~mbg/ | | Chelmsford, MA 01824 | "pdp-11 programmer - some assembler | | (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

21 years, 5 months

1
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What is this Data IO Thingie?

by jeff.kaneko＠juno.com

Photo at: http://home.earthlink.net/~pkaneko/data_io_stuff.jpg Andybody need/want this? The socket adaptors are: 715-1039 715-1028-1 715-1035-2 The fourth plug-in says that it is a calibrator program adaptor . . . . Jeff

21 years, 5 months

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Need 20Mb Bernoulli disks

by rigdonj＠cfl.rr.com

Does anybody have any of the old "Beta 20" 5 1/4" 20Mb Bernoulli disks that they're willing to part with? I picked up a Bering HP-IB drive that I'd like to test. Joe

21 years, 5 months

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access to BIOS of DECpc

by mbg＠TheWorld.com

>I feel a bit silly, but it was late last night is my excuse. >"DECpc 320P" in Google gave a link to floppy images on a COMPAQ site. >I will try them this evening, but it is good to know that the DECpc >"knows" a limited number of hard disks. If I can 'upgrade' to some >300 Mb of the 420 Mb capacity it is still better than the 40 Mb that >I have available at this point. Years ago, I found out what I thought to be sufficient info to upgrade my 320P from the 40mb drive it had, to a 120mb I had been able to obtain... apparently type 46 and type 47 in the BIOS are user definable. And I guess I didn't have all the info, or I touched the wrong area because I essentially 'bricked' my 320p. It no longer boots. If you do find out how to do it reliably, I'd be interested in trying to fix it. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com | | Member of Technical Staff | megan at savaje.com | | SavaJe Technologies, Inc. | (s/ at /@/) | | 100 Apollo Drive | URL: http://world.std.com/~mbg/ | | Chelmsford, MA 01824 | "pdp-11 programmer - some assembler | | (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

21 years, 5 months

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OT: Help ID old IBM electric typewriter

by aek＠spies.com

It is a Model C http://www.etypewriters.com/c-thumb.htm

21 years, 5 months

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VCF stuff for sale

by dwight.elvey＠amd.com

Hi Marvin If you come across one of the small serial cards, I'm looking for one for my Poly88. It doesn't need parts, just the board would be great. Have you been able to get a Poly 88xx system up and running yet? If not, you should still bring a controller card, cables and drives for the 8 inch setup. I think I have the 5-1/4" setup covered. I'll blow some ROMs with the updates to handle the 8 inch drives. I'll be heading out soon and won't be on the net again until Monday. Dwight >From: "Marvin Johnston" <marvin(a)rain.org> > > >With VCF comming up in about 8 days, I am planning on bringing a bunch >of stuff up there to get rid, er, sell :). In that vein, is there >anything special those of you who will be attending are looking for? My >plan is to reduce my collection to things that are primarily in the 70's >to very early 80's, and I will mostly concentrate on CP/M and S-100 >systems. > >Things I have that are not in my area of interest or expertise include: > >SparcStatation2 w/ external CD-ROM, Color Monitor, Keyboard, Mouse, >Working >Wang computer (don't remember model), about 10"w x 24"h x 30"d., >untested >Xerox computer, Model 8???, w/ monitor/keyboard. About the same size as >the Wang, untested >Phillips computer, about 24"w x 24"h x 30"d w/ 8" drive(s), untested > >Make a reasonable offer, but I won't be bringing the above stuff unless >someone wants it! > >As usual, I'll post a link to the list of stuff that I'll be bringing >up. >

21 years, 5 months

1
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Wilson SX 530 SMD TTL Based Disk Drive Exerciser Tester (ebay)

by stephane.tsacas＠gmail.com

Wilson SX 530 SMD TTL Based Disk Drive Exerciser Tester http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=45045&item=3849289730 Stephane

21 years, 5 months

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ClassicCmp.org Down?

by marvin＠rain.org

Is http://www.classiccmp.org/ down? I've been trying to log into the web site since last night, and can't connect. I seem to recall that there was a problem with the HD, but I don't recall the actual server being down. BTW, being on digest mode, I won't see any responses unless I log into the site, get an email, or wait until the digest gets processed and sent out.

21 years, 5 months

1
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Microsoft Windows vs. IBM 701

by tomj＠wps.com

---------- Forwarded message ---------- From: David Forbes I was reading that 1961 BRL survey, and found the user reports of the IBM 701 fascinating. They apparently had an average uptime of about 2-4 hours. That doesn't seem like much by today's standards, but then how often does Windows crash on you? The amazing thing is how much they paid per calculation. $50,000 rental per month for a typical installation at 500 multiplies per second is about 10,000 multiplies per dollar! We seem to get a better price these days with a typical PC. It's about a trillion multiplies per dollar, which is a factor of 100 million better. -- --David Forbes, Tucson, AZ http://www.cathodecorner.com/

21 years, 5 months

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Heath EC-1 on eBay

by jpl15＠panix.com

I'll hold off bidding on this in case someone else wants it more than me: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4193&item=5134822428… Starting bid is a stimulating $2,050.00. But you Instant Gratification types can take this gem home for a measly $3K - Buy It Now and save yourself the stress of a damn auction!! Let's see if it stays this way, or if somebody hits the seller with a clue-stick. Cheers Granino Vanevar Bush-Korn

21 years, 5 months

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new find: an Intel MDS 800

by klemens.krause＠informatik.uni-stuttgart.de

I have a white MDS 800 System. It was sold in Germany by Siemens and they relabelled it to SME 800 ("Siemens Microcomputer Entwicklungssystem"). It has an external 8"-double drive and a dumb terminal. Inside it is all Intel. The only thing they changed internal: The glued "Siemens"-labels over the original Intel-logos on the PCBs. You can see it: http://computermuseum-stuttgart.de/dev/sme800 We are running ISIS-II inclusive KERMIT on it. One time Christian Corti succeeded to boot a CP/M 2.?. But in the meantime this disk was damaged. I found a very old CP/M source, dated "11/21/75" in the net, written in PL/M and was able to translate it with the original PL/M-compiler written in FORTRAN (dated: JAN 1975) on our SUN 4/260. What is needed: To adapt the original BIOS for single density disks to the double density drives on our system and to make bootable floppies. Cheers Klemens On Wed, 27 Oct 2004, Steve Thatcher wrote: > I lived in Munich, Germany for a year and a half back in 1983 while I was working for Applied Microsystems. I developed a couple of the EM series emulators and ran into a number of remarked Intel systems that said Siemens on the outside. > > >> I've never heard of a Siemans system. The white MDSs that I've seen all >> have the standard Intel markings and labels. (I've got one sitting about 3 >> feet from me as I type.) >> >> Joe > > -- ---------------------------------------------- Klemens Krause Universitaet Stuttgart / Inst. f. Softwaretechnologie Universitaetsstr. 38 / 70569 Stuttgart Tel.: 0711/7816 341

21 years, 5 months

1
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BYTEK 135 Multiprogrammer

by vp＠cs.drexel.edu

I have the 135-U/A model, but no manual so I am a bit lost as to how it can be used. Does anybody have any information on how to use this multiprogrammer? Thanks **vp

21 years, 5 months

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DEC qbus Q/CD

by pete＠dunnington.u-net.com

On Oct 28 2004, 23:46, meltie lists wrote: > Hello again! > > Does anyone have a copy of the wirewrap diagram for a Q22/CD backplane? > I'm looking to wrap my own backplane from an old 4-slot Q18-serpentine > chassis I have. QBus backplanes are normally soldered, with short pins, not wirewrap. I don't know if that's true for H9270, though (which I assume is what you have). There's a diagram with the info you need for Qbus in most QBus processor handbooks, in the chapter on the bus. The CD interconnect is described in the chapters on backplanes in the Microcomputer Interfaces handbook. If that won't do, most of the info is on my QBusConns.ps diagram at http://www.dunnington.u-net.com/public/PDP-11/ . In essence, almost all the signals on A and B are bussed all the way down, pin for pin, except the following: SSPARE[1238]: AE1, AF1, AH1, BH1 are normally not bussed MSPARE[AB]: AK1 is connected to AL1 at each slot, but not bussed; ditto BK1+BL1 SSPARE[4567]: BDAL18-21 on Q22, are bussed on Q22 backplanes PSPARE[12]: AU1 and BU1 need not be bussed - nothing should use them BIAK[IO]: BIAKI (AM2) on each slot is connected only to BIAKO (AN2) on the slot below BDMG[IO]: BDMGO (AS2) on each slot is connected only to BDMGI (AR) on the slot below (I'm not absolutely certain about the last, but I'm fairly sure that's right.) On C and D, pretty much everything on C2 and D2 of each slot is connected to the corresponding pin on C1 and D1 of the slot below, except: CA1 on each slot connects to CC1 on the next slot down CT2 on each slot connects to DT2 on the next slot down CA2 and DA2 are bussed to +5V CC2, CD2, CT1, and DT1 are all ground On the top slot only, there's a jumper between CK1 and CL1, and another between DK1 and DL1. -- Pete Peter Turnbull Network Manager University of York

21 years, 5 months

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Subject: Big Iron available - Data General Eclipse - plus lots more

by sloboyko＠yahoo.com

Erik Klein wrote: >There were also a good number of vintage terminals >stacked about. >Several >ADM3as in both blue and beige in various states of >decay. Most looked >serviceable with a couple having a bit of screen >rot. The couple I >turned >on worked. None had the switch covers. These are very easy to restore and not expensive either. The circuitry is all TTL (but there's a lot of it!); the manuals for operation and service are on the Internet; I restored two and got new CRT's for them (around $40 each shipped, as I recall, in black and white, natch). I really hate fooling around with CRTs but it was fairly easy. They are also very small, considering when they were built. One of mine didn't have the lower case option and I made one out of a 2716 and a little adapter board. It is possible to put in a metal plate or recreate the LSI logo on the switch cover (I did both). If I had room, I'd get a few more; it would be a shame to see these get crushed. They are the quintessential 70's generic terminal, are a perfect match to 70's pioneering home computers, and they have a certain Eames era look. Did I mention that I like them? ===== -Steve Loboyko Incredible wisdom actually found in a commerical fortune cookie: "When small men cast long shadows, then it is very late in the day." Website: http://juliepalooza.8m.com/sl __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail

21 years, 5 months

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West meets East

by msokolov＠ivan.Harhan.ORG

Jay West <jwest(a)classiccmp.org> wrote: > Analogy: Britney Spears (DEC) is no Marilyn Monroe (HP), BUT... I'd > still.... *Grin* Nah, wouldn't want her. She is a brainless shrub supporter. Michael Moore quoted her in Fahrenheit 9/11 as saying something like "it's unpatriotic to ever question the President". MS

21 years, 5 months

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VCF stuff for sale

by aek＠spies.com

> Xerox computer, Model 8??? -- It was an 860.

21 years, 5 months

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Wrote some useful tools for PostScript

by msokolov＠ivan.Harhan.ORG

Hi folks, In case anyone is interested, I have just written and released some useful tools for PostScript lovers. These are: t1free - A toolkit for working with Type 1 fonts antidistiller - A special for those who (like me) love PS and hate PDF You can find both on my anonymous FTP server ifctfvax.Harhan.ORG in the directory /pub/PostScript . Enjoy! (Hopefully this isn't too far off-topic: after all, Level 1 PostScript is on-topic even by the stricter 20 y rule.) MS

21 years, 5 months

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[GreenKeys] Model 20 on ebaY (fwd)

by jpl15＠panix.com

Upstate NY very rare TTY rescue/help.... anyone could jump in? If so, contact Don directly - he's a Certified Good Guy.. Cheers John ---------- Forwarded message ---------- Date: Thu, 28 Oct 2004 22:50:19 -0500 From: Don Robert House <drhouse(a)nadcomm.com> To: greenkeys(a)mailman.qth.net Subject: [GreenKeys] Model 20 on ebaY I would really love to have this Model 20 for our museum. Is there anyone out there near Buffalo, NY that could assist with the packing of the machine if I were to win the machine? Thanks for any assistance, Don Founder and Curator NADCOMM -- --------------------------------------------------- Don R. House 4716 Patty Lane, Ringwood, IL 60072 Tel: 815-653-0683 FAX: 815-653-0684 ***************************************** North American Data Communications Dept. of CMA URL: http://www.nadcomm.org Computer Museum of America (CMA) URL: http://www.computer-museum.org _______________________________________________ GreenKeys mailing list GreenKeys(a)mailman.qth.net http://mailman.qth.net/mailman/listinfo/greenkeys

21 years, 5 months

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VCF stuff for sale

by marvin＠rain.org

With VCF comming up in about 8 days, I am planning on bringing a bunch of stuff up there to get rid, er, sell :). In that vein, is there anything special those of you who will be attending are looking for? My plan is to reduce my collection to things that are primarily in the 70's to very early 80's, and I will mostly concentrate on CP/M and S-100 systems. Things I have that are not in my area of interest or expertise include: SparcStatation2 w/ external CD-ROM, Color Monitor, Keyboard, Mouse, Working Wang computer (don't remember model), about 10"w x 24"h x 30"d., untested Xerox computer, Model 8???, w/ monitor/keyboard. About the same size as the Wang, untested Phillips computer, about 24"w x 24"h x 30"d w/ 8" drive(s), untested Make a reasonable offer, but I won't be bringing the above stuff unless someone wants it! As usual, I'll post a link to the list of stuff that I'll be bringing up.

21 years, 5 months

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Liquidation sale: recent stuff

by cb＠mythtech.net

>>It's all pickup-only stuff in California (Chatsworth, 91311). >>http://www.digitaltrancefurs.com/p2k is a what-they-have webpage. > >that sucks, I could REALLY use the G3 beige tower.... but i am not in cali. Take a look at the LEM Swap list (www.lowendmac.com look for the email lists). I see Rev A beige G3's going for around $50 all the time. -chris <http://www.mythtech.net>

21 years, 5 months

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Liquidation sale: recent stuff

by mouse＠Rodents.Montreal.QC.CA

Someone I know online is part of something that's going out of business, or something similar, and is liquidating a bunch of stuff. Most of the computer stuff is more recent than our cutoff (much less any of the recently-proposed alternative cutoffs :), but some may be old enough, it includes a bunch of non-computer office stuff, and at liquidation prices some of you may want something more recent - heretical though it may seem to some of you, I'm sure some (others) of you, like me, don't confine your computer activities to strictly-on-topic machines. My friend says "...get the word out. Otherwise, this stuff is just gonna go to a liquidator or something. We [...] would rather see it go to someone who'll use it than to a company that'll just sell it off.". It's all pickup-only stuff in California (Chatsworth, 91311). http://www.digitaltrancefurs.com/p2k is a what-they-have webpage. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

21 years, 5 months

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Microsoft Windows vs. IBM 701

by swtpc6800＠comcast.net

> From: David Forbes > > I was reading that 1961 BRL survey, and found the user reports > of the IBM 701 fascinating. They apparently had an average > uptime of about 2-4 hours. In 1976 I worked with a guy who maintained a tube computer when he was going to Cal Poly San Luis Obispo. He said that everyday the ran a diagnostic at low voltage then at high voltage. This would point out weak tubes. They would replace the tubes and the machine was good for another day. Michael Holley www.swtpc.com/mholley

21 years, 5 months

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need help with MicroLink STD bus card

by rigdonj＠cfl.rr.com

Does anyone have a MicroLink catalog or docs for any of their cards? I picked up two cards that I'm trying to identify. The only thing printed on that that might be a model number is "97134". There are no LSI ICs to give a hint of its function, only a bunch of standard SSI TTL ICs. It has two 34 position ribbon cable headers on the end of the cards. Joe

21 years, 5 months

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Polymorphic 8824

by marvin＠rain.org

In cleaning out a place to put the Cromemco, I ran across the Polymorphic stuff again. One of the chassis is labeled 8824, but so far, I haven't found any information about it. Anyone here at least have heard of it?

21 years, 5 months

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wtd: amiga bits

by stuart＠zen.co.uk

Hello everyone, Can someone help me out - I need a Zorro ethernet card for my 2000, or maybe something like a golden gate board to let me use ISA cards. I'd also like to get hold of a video toaster 2000 setup, any chance of a US folks helping out? Cheerio Stu

21 years, 5 months

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DEC qbus Q/CD

by lists＠microvax.org

Hello again! Does anyone have a copy of the wirewrap diagram for a Q22/CD backplane? I'm looking to wrap my own backplane from an old 4-slot Q18-serpentine chassis I have. cheers alex/melt

21 years, 5 months

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new find: Solbourne 600

by rigdonj＠cfl.rr.com

I found one of these today but didn't pick it up. Should I have? I don't know anything about these, anybody care to enlighten me? Joe

21 years, 5 months

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386/25

by jdarren＠ala.net

All, I'm looking for a 386/25MHz CPU with motherboard containing at least 5 ISA slots. Does anyone have such for sale or know of a source? Thanks, Darren Peterson

21 years, 5 months

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West meets East (enough already)

by news＠computercollector.com

I'm not getting involved in this political discussion... as many of you know I'm a (gasp) member of the media, and not just for old computers. Few people are stronger advocates of free speech than I. Having said that, I do feel that "off-topic" on this list ought to mean things that are other TECHNOLOGY topics, such as the WWW discussion from earlier this week. Yes, I once posted a last-minute message asking if anyone wanted to buy some concert tickets. However it's common sense, I think, that topics like politics (and religion, sex, etc.) on this list do nothing but scare away would-be collectors (and existing collectors who don't have my tolerance for this stuff). Now, if there were an (intelligent, not cliched!) debate about which candidate would better serve America's technology platform, that would be different. In fact I encourage that debate. But this current thread, and future ones like it, should stop. ===== Tell your friends about the Computer Collector Newsletter! -- It's free and we'll never send spam or share your email address -- Publishing every Monday(-ish), ask about writing for us -- Mainframes to videogames, hardware and software, we cover it all Visit the museums directory and read about past events at our web site: http://news.computercollector.com Contact us at news(a)computercollector.com 585 readers and counting!

21 years, 5 months

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new find: an Intel MDS 800

by dwight.elvey＠amd.com

>From: "Jules Richardson" <julesrichardsonuk(a)yahoo.co.uk> --Snip--- > >It'd be nice if the blue-cased machine was one with a 4004; I'm not sure >if we have anything with a 4004 CPU in it. That would be a Mod4. It looks similar to a MDS800 but also has a Zif socket on the front ( not to be confused with Mod40 and Mod8 that also have sockets ). I have one of the smaller setups that is just the programmer card, 4004 cpu card and a motherboard. See: http://www.chrisbot.com/prog/4004/Elvey_4004_dev_sys.jpeg Later Dwight > >cheers > >Jules > >

21 years, 5 months

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TRS-80 model II keyboard(s)

by tosteve＠yahoo.com

Hello, I have a couple TRS-80 model II keyboards, as seen at http://oldcomputers.net/trs80ii.html They work, but are not in new condition (they have wear marks and dirt). Does anyone have a use for one? They are not for re-sale! Steve. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

21 years, 5 months

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Classic OS's - EduSystem

by ddl-cctech＠danlan.com

| Hmmm. Somewhere around here [*] I've got paper tapes of Edu-20 and | Edu-20-C, both BASIC multiuser systems for 8K+ PDP-8s. They were both for | paper-tape-only systems, say schools that could only afford the basic 8K | machine and a few Teletypes. (The Edu-20-C was basically an Edu-20 system | which could use Edu-25 commands.) We had Edusystem-20 on an 8/e with two ASR-33s in high school. I remember being surprised to find that the linput command was supported in spite of the fact that it wasn't mentioned in the manuals. Maybe that was 20-C? Dan Lanciani ddl(a)danlan.*com

21 years, 5 months

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What is this Data IO Thingie?

by swtpc6800＠comcast.net

These are early programming adapters for the Data I/O Model 19 and earlier programmers. These were used before Data I/O developed the UniPak module which did all PROMs and EPROMs (except the 1702 ERPOM) There are two cards in the large Programming Pak, an analog card and a digital control card. (I forget the correct names.) The digital card had a prom based state machine to control the programing algorithm. The analog card generated the waveforms. This pak could be used in early Data I/O programmers that did not have a microprocessor. The you wanted to program a different part you need to swap cards. The smaller parts a pinout adapters. The two white things in the lower part of the picture look like your feet. http://home.earthlink.net/~pkaneko/data_io_stuff.jpg ------------------------------- Michael Holley swtpc6800(a)comcast.net www.swtpc.com -------------------------------

21 years, 5 months

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