- 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, 10 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, 10 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, 10 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, 10 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, 10 months

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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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 months

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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, 10 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, 10 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, 10 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, 10 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, 10 months

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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, 10 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, 10 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, 10 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, 10 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, 10 months

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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, 10 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, 10 months

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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, 10 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, 10 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, 10 months

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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, 10 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, 10 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, 10 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, 10 months

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VCF stuff for sale

by aek＠spies.com

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

21 years, 10 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, 10 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, 10 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, 10 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, 10 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, 10 months

2
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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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 months

2
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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, 10 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, 10 months

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new find: an Intel MDS 800

by Innfogra＠aol.com

There is a series 4 also in the intel MDS line (4XX). I alway thought the MDS 800 was the first series. They didn't use the series numbers then. The ones with the monitors were not plain 800s but 2XXs. A 2XX could be a series III also. I have an original 800 box with no cards installed and a friend has a series II with a bad Ball monitor. Paxton Astoria, OR

21 years, 10 months

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HP rumor(OT)

by mmcfadden＠cmh.edu

I saw a piece in the inquirer that HP may spin of the printing division and name it HP, the retained part will have some "other computer name". Maybe they want to get out of the computer business. Maybe somebody will pick up the old DEC portion and revive it. We can only hope. http://www.theinquirer.net/?article=19297 Mike

21 years, 10 months

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OT! Re: West meets East

by marvin＠rain.org

First, last, and only comment: The idea of "I have a plan" is like a$$holes, everyone has one. Second, ANYONE who starts off a campaign putting down their opponent as the major theme of their campaign has *no* business running or winning that office. I would have a lot more repect for Kerry if he had promoted what he thought was best for the country instead of just attacking Bush. And of course, the media makes more money by promoting this garbage. > Who would you rather have as President? > > a) Michael Sokolov > b) Michael Moore > c) Britney Spears > d) the current jackass > > Let's see how off-topic this takes us :) > > -- > > Sellam Ismail

21 years, 10 months

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What is this Data IO Thingie?

by dave04a＠dunfield.com

At 21:32 27/10/2004 -0700, you wrote: > >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 . . . . Hi Jeff, This is an device programming adapter which looks like it might fit my Data I/O 29B. I haven't looked up the individual sockets to see what devices they are for, so I don't know if this would do anything my multipak won't already do, however I would be interested in playing with it - what do you want for it? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 10 months

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HP's obtained

by jwest＠classiccmp.org

Looks like I won two of the gov. liquidation auctions, and just purchased nine of the HP 21MX M-series cpu's. I'm keeping a few, the others are already destined for collectors on the list. Guess maybe someday I should get an F series to round out the product line :) Did anyone here win the other lot with 8 cpu's? Jay PS - my comparison of Britney to DEC was not intended as a slam to DEC. I happen to adore Britney (looks, not music), but monroe was a classier package :) As to the choices for president, I'll take sellams "d" choice :)

21 years, 10 months

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What is this Data IO Thingie?

by jeff.kaneko＠juno.com

Well yes, I suppose I should have been more careful: It goes with one of their programmers, but which one? On Wed, 27 Oct 2004 23:40:53 -0500 "John C. Ellingboe" <john(a)guntersville.net> writes: > jeff.kaneko(a)juno.com wrote: > > > > 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 > > Prom programmer ________________________________________________________________ Speed up your surfing with Juno SpeedBand. Now includes pop-up blocker! Only $14.95/ month - visit http://www.juno.com/surf to sign up today!

21 years, 10 months

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PDP-11/10 Boards?

by GOOI＠oce.nl

Check www.pdp-11.nl and click on the link 11/10 at the left. There is also a boards position lay-out for the *4* different backplanes ... Let me know if you miss something; new info is aways a stimulus to update the pages; as hearing they are read. - Henk, PA8PDP > -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org]On Behalf Of John Allain > Sent: donderdag 28 oktober 2004 2:16 > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Re: PDP-11/10 Boards? > > > > Does anyone here happen to know what boards a PDP-11/10 > should have in it? > > I don't happen to have that vintage of handbooks handy at > the moment. > > Here's my inventory notes on the machine... > > CPU: > M7260 KD11-B 11/05 data paths module > M7261 KD11-B 11/05 control logic module > memory: > H214 8-Kword 16-bit H213 (used in MM11-L)(replaced by H215) > G110 16 bit 11/05, 11/25, 11/45 Control & Data Loops, HEXx8.5 > G231 16K XY Selection, Current source, Address Latch, 8K Decode. > G231 16K XY Selection, Current source, Address Latch, 8K Decode. > G110 16 bit 11/05, 11/25, 11/45 Control & Data Loops, HEXx8.5 > H214 8-Kword 16-bit H213 (used in MM11-L) (replaced by H215) > options: > DF11 (tbs)(in slot 1) (control panel?) > M7254 RK11-D RK05 status control module > M7255 RK11-D RK05 disk control module > M7256 RK11-D RK05 registers module (data path) > M7257 RK11-D RK05 bus control module > > Hope this helps, > John A. > >

21 years, 10 months

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Cromemco Rescue

by marvin＠rain.org

I was contacted a couple of weeks ago by someone moving and needing to get rid of their old computers; one of them was a Cromemco Series 3 with two 8" floppies and some misc. discs. Besides the System 3, it also included the computer desk that came with the unit! We finally managed to make contact this past weekend, and it is one neat system! I have the System 3 with a HD, but the floppies only and the desk are *neat* additions to the collection!!! Also, does anyone know if the Cromemco will read the Polymorphic 8" disks? It will probably be after VCF that I will have a chance to play with it and find out, but I am really curious.

21 years, 10 months

1
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West meets East

by msokolov＠ivan.Harhan.ORG

Jay West <jwest(a)classiccmp.org> wrote: > OMG - Michael S. is quoting Michael Moore as a factual source? That's like > quoting news stories from the Enquirer. He captured her saying it on camera, in her own voice with video. You are not going to suggest that he synthesized her voice and moving image, are you? MS

21 years, 10 months

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possible rescue

by jwest＠classiccmp.org

Here's what he has.... ---------------------------------------- In general , the complete 11/05 with core and ba11k box, 11/34 cpus and co processors, ?rl01/02 controller?., rk11 controller and spare boards, dl11ws, rk05 heads and some spare parts, plessey tc130 or 131 or both tape controllers , 37 1/2 ips cipher and digi data 9 track tape drives, 45 or 75 ips cipher full size 9 track tape drives, 9 track read after write tape heads for same, tapes, home made tape exersizer, 11/05 spare cpus, some 4 slot unibus backplane, unibus style connectors in case one breaks in a backplane, an rko5 diagnostic test kit, !!!!! a hex unibus extender card!!!!!, a quad unibus prototype pcb, some quad boot cards with eprom/rom with boot loader for several common devices, ? a diode boot card? , vt 52 compatable terminals , several vt 100s, ....welll ....thats all for now. --------------------------------------- Muahahahahahaaaaaaa Now THIS stuff I will do a road trip for :) Jay

21 years, 10 months

2
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new find: another HP 1000!

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj(a)cfl.rr.com> > > I went to one of my favorite scrap sources today but I was just there a >few days ago so I didn't expect to find anything. But I was wrong! I found >a NICE F series HP 1000 along with the Floating Point Unit. I haven't >looked at it closely yet but all the card slots are full and it's in very >good condition. It was mounted in a short (desk height) HP cabinet marked >"HP 1000 System" along the top. Unfortunately I had to leave the cabinet, >it was just too big and heavy fit in the vehicle that I was in. I'll go >through the computer later and give a full list of all the stuff in it. > > Joe > Hi Joe You know that most racks can be flattened without too much effort. Dwight

21 years, 10 months

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PDP-11/10 Boards?

by healyzh＠aracnet.com

Does anyone here happen to know what boards a PDP-11/10 should have in it? I don't happen to have that vintage of handbooks handy at the moment. Zane

21 years, 10 months

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Paging Ashley Carder....

by dvcorbin＠optonline.net

_____ From: David V. Corbin [mailto:david@dynamicconcepts.us] Sent: Wednesday, October 27, 2004 7:14 PM To: 'General Discussion: On-Topic and Off-Topic Posts' Subject: Paging Ashley Carder.... Ashley, If you are around [I sent you a few e-mails no response]. Please give me a ring. I have a possible rescure/purchase that you may be able to help me on.... David Corbin

21 years, 10 months

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Paging Ashley Carder....

by david＠dynamicconcepts.us

Ashley, If you are around [I sent you a few e-mails no response]. Please give me a ring. I have a possible rescure/purchase that you may be able to help me on.... David Corbin

21 years, 10 months

1
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YAAYD (Yet another "Ten (0A) year" discussion) (was: GOPHER

by dwight.elvey＠amd.com

>From: "David V. Corbin" <dvcorbin(a)optonline.net> > >>>> Maybe it should be based of if a person in their right >>>> mind might actually use that machine for day to day >>>> business, it should be excluded. Of course this might very >>>> from person to person. Anyone silly enough to use an old >>>> Altair for day to day work shouldn't post questions to the list. >>>> Simple. > >Then if the inverse would also be true. If a person does NOT consider a >Machine to be suitable for day-to-day work, it WOULD be eligible. Many on >this list [but not me] consider current WinTel machines to suitable for >anything. This would then make that machine valid for posting questions on >the list. Not likely to happen since the person whould be be "authorized" to >post on said machine is unlikely to even own one. > Hi David Yes, I think the risk is low. Even if they had such a machine, they would, most likely, be embarrassed to state that to the group, anyway. Dwight

21 years, 10 months

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Der Mouse I've got a typewritter

by kenziem＠sympatico.ca

I've got a typewritter in Ottawa, but mail to you keeps getting returned. Also happened when you cleaned out your basement the last time. This message was undeliverable due to the following reason: Your message was not delivered because the destination computer was not reachable within the allowed queue period. The amount of time a message is queued before it is returned depends on local configura- tion parameters. Most likely there is a network problem that prevented delivery, but it is also possible that the computer is turned off, or does not have a mail system running right now. Your message was not delivered within 1 days. Host rodents.montreal.qc.ca is not responding. The following recipients did not receive this message: <mouse(a)rodents.montreal.qc.ca> Final-Recipient: RFC822; <mouse(a)rodents.montreal.qc.ca> Action: failed Status: 4.4.7 Remote-MTA: dns; rodents.montreal.qc.ca -- Collector of vintage computers http://www.ncf.ca/~ba600 Open Source Weekend http://www.osw.ca

21 years, 10 months

2
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new find: an Intel MDS 800

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj(a)cfl.rr.com> > >At 02:55 PM 10/27/04 +0000, you wrote: >>On Wed, 2004-10-27 at 09:35 -0400, Joe R. wrote: >>> Jules, >>> >>> I'd love to hear what kind of hardware, software and manuals you got with >>> your's. >>> >>> Joe >> >>I'll have a look and see if I can do some sort of inventory. >> >>We've got a series 1 machine as it turns out too (blue case) > > AFIK all of the MDS2xxs (including the blue ones) are series II machines. >I've never heard of anything that Intel designated as a Series I. Most of >the Series II machines have blue cases but some of them have white cases. >The white ones are thought to be later machines but no one knows for sure. >Just to further confuse the issue, ANY of the MDS2xxs can be upgraded to >series III by adding a 8086 Resident Processor Card. I believe the MDS800s >can also be upgraded to Series III the same way. > > Joe I also never heard the term Series I while working there. It was always MDS800 and Series II or III. I believe Joe is correct that one can run a 8086 in the MDS800 as well as any of them. I have never seen a MDS800 in anything other than blue. I've seen a white Series II but I don't know if they were from any specific time period. All the ones we used internally were blue. I believe I saw a gray one as well. Two things were problems with the Series II machines. The early ones did not have shielding and metal coating in the keyboard case. These were very succeptable to static discharge from the operator. The Series II IOC board had a slow serial rate. Most simply modified the setup of the clock rate in the ROM's to get the higher serial rate for the built in terminal. > >- I always >>thought it belonged to one of the group, but apparently it is owned by >>the museum. I'll have a look-see as to exctly what that one is too (I >>know there's no docs or disks with that machine though) >> >>cheers >> >>Jules >> >> >

21 years, 10 months

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new find: an Intel MDS 800

by melamy＠earthlink.net

I concur with Joe, there never was a series I. The mds800 was the first development system (not counting the Intellec 8). What Siemens did though was contract with Intel to produce a "Siemens" development system which was of course just a different color Series II machine. They were off white and carried the Siemens logo. -----Original Message----- From: "Joe R." <rigdonj(a)cfl.rr.com> AFIK all of the MDS2xxs (including the blue ones) are series II machines. I've never heard of anything that Intel designated as a Series I. Most of the Series II machines have blue cases but some of them have white cases. The white ones are thought to be later machines but no one knows for sure. Just to further confuse the issue, ANY of the MDS2xxs can be upgraded to series III by adding a 8086 Resident Processor Card. I believe the MDS800s can also be upgraded to Series III the same way. Joe

21 years, 10 months

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new find: an Intel MDS 800

by melamy＠earthlink.net

as for the DC37 on the back (yes, they do consider it a d-sub style connector). The more important question is what the two bottom cards are in the card cage. They are normally a two board disk controller from Intel (bit slice processor). As long as the controller was made by Intel, then the DC37 pinout should be compatible with this hardware or Intel's. I seem to recall a company called Zendex that made compatible items for the MDS series. Intel made a MDS220 and a MDS230. In either one, you could make a choice as to the density of the internal drive. As I said before, if there is a 50 pin ribbon cable between the back board (IOC) and the drive, then it is wired for SD. If an internal cable comes from the front to the disk drive, then it is wired as DD. I have both types of cables at home... About your comment on monitor troubleshooting. I have the schematic set for the Ball Brothers monitor that was usually used in the MDS2XX series. The nice thing about the monitor is that it is very simple. There is no fancy monitor control chip in it, in fact it doesn't even have any chips on it if I recall correctly. The monitor was usually supplied by Ball Brothers or Zenith. The back IOC supplies +12V poower, vertical, horizontal, and video intensity signals for display. By the way, the top card with all the switches on it is the CPU card. There were three versions of it that I know of. The first was 8080 based and only had 32K on it. I believe the remaining two versions were 8085 based with the first having 32K and the final one having 64K. If you only have 16 ram chips on your cpu board, then the next card down would or should be a 32K ram card. best regards, Steve Thatcher (one of the other MDS guys) -----Original Message----- From: Scott Stevens <chenmel(a)earthlink.net> > >The internal drive could be either SD or DD. If there is a 50 pin ribbon >connecting the drive to the back board in the system, then you have an >internal single density drive. If there is a cable running from one of the >front cards to the drive, then it has been hooked up as double density. > Actually, there's an added-in non-Intel jack on the back (I think 37 pin 'D' shaped but as everybody knows, probably not a 'Dsub' due to size) that the external dual-8" floppy enclosure plugs into. I suspect the system may have had something third-party added to support the two external drives, and some of the disks are labeled to indicate they are 'higher' density than the internal drive will support.

21 years, 10 months

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new find: an Intel MDS 800

by dwight.elvey＠amd.com

>From: "Scott Stevens" <chenmel(a)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. Hi Scott First, make sure you can find a replacement device and then wiggle or squeeze the lead a little with some needle nose. If it crushes or fails, replace the chip. The problem is that may IC's used iron cores and the solder plate would actually cause electrolysis and rot the core out of the lead. > >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? I rate making it work more important than date codes. Still, most often when I buy onesy-twossies, I get them >from some surplus place and they have old date codes anyway. > >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 > > Hi Scott I used to use both the Series II's and the MDS800's as well when I worked at Intel in the late 70's. I wrote some code in both assembler and PL/M. Both the Series II and the 800's could run the same software. Of course, if the software was for a '86 processor, you'd need a board with that on it. When looking at the boards, don't confuse the IOC board with the main processor for the system. The IOC board has a 8085 on it but it only runs the various I/O functions. The main processor will be one of the cards on the multi-buss slots. The main processor could have been a 8080, 8085 or a 8086. This all depends on what it came with. I have both a Series II and a MDS800 at home but I've not found time to play with them. I can only play with one at a time. They are on my list to play with. I have a number of disk ( about 60-80 someplace ) and a pile of documents. I still need to catalog what I have but not gotten to it. One thing that would be great, would be to find the bits and pieces that make up the user library. There was a lot of good stuff there. I have some listing from the library and may have information on disk as well but like I say, I just haven't gotten to them yet. Also, Joe, I think I have an extra Series II keyboard. Since I've not had a chance to check things out, I may only have one working unit. Still, these are really good keyboards and are not likely to have problems. They use the hall effect switches so there is no mechanical problems other than the springs. Dwight

21 years, 10 months

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Digital Research Concurrent DOS/386 2.0 ....

by daniel＠cavs.msstate.edu

Hello, I saw a newsgroup posting where you mentioned having the binary images of this version of Concurrent DOS. I'm an antique OS collector, and I was wondering if you still have this files, and if so would you be willing to share them? If you are, could you kindly upload them to the following server: ftp://ps2supersite.homedns.org/incoming I have many old OSes that I would be will to share with you as well, so ask and I'll see if I have it! Thank you, Daniel Hamilton

21 years, 10 months

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YAAYD (Yet another "Ten (0A) year" discussion) (was: GOPHER

by dwight.elvey＠amd.com

>From: "der Mouse" <mouse(a)Rodents.Montreal.QC.CA> > >>> Many on this list [but not me] consider current WinTel machines to >>> suitable for anything. > >Well, I wouldn't go that far. But I have two peecee machines. > >> Yes, I think the risk is low. Even if they had such a machine, they >> would, most likely, be embarrassed to state that to the group, > >:-) I'm not embarrassed to say I have them. After all, one of them is >the machine I've been trying to write a KA630 emulator on! (The other >one exists principally to store my ripped-CD collection - as soon as I >buy a CD I rip it.) Hi der Mouse I'll have to admit that I have a couple as well. Still, if something broke on one, I'd not have any ill feelings about sending it off to the recycler and making a trip to Fry's to replace it. It is just a toaster to me. I treasure some of my other machines. Dwight

21 years, 10 months

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update for classiccmp.org mirror of bitsavers

by jwest＠classiccmp.org

FYI; The classiccmp.org mirror of bitsavers used to just mirror the pdf section. As of this morning it now mirrors the entire bitsavers archive, not just the pdfs. You can access the mirror at www.classiccmp.org/bitsavers Jay

21 years, 10 months

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[Fwd: Re: Intel iPDS 100 boot disks / software?]

by dmabry＠mich.com

I'll send this again. Sorry to repeat, but it may have been missed. -------- Original Message -------- Subject: Re: Intel iPDS 100 boot disks / software? Date: Fri, 22 Oct 2004 14:15:35 -0400 From: Dave Mabry <dmabry(a)mich.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org> References: <000501c4b7be$9153bd30$bbed1fac(a)ntdev.corp.microsoft.com> I have put together some teledisk images of system disks for the iPDS. I can e-mail them to you. You have to be able to run Teledisk on a PC with a 5 1/4" HD drive to create a boot diskette for the iPDS from the images. If you are game to try that, let me know and I'll e-mail you the image to try. They were created on a 16MHz 386SX machine, if that matters. Sometimes Teledisk is particular to the cpu it is running on. Glen Slick wrote: > Anyone know where I can get some boot disks and other software for an > Intel iPDS 100? > >

21 years, 10 months

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access to BIOS of DECpc

by GOOI＠oce.nl

Hi Dave, I *was* looking for OnTrack Disk Manager. The manufacturer specific versions only work when they detect a drive of their own brand, otherwise the software simply stops. I found on the Internet the OnTrack version for IBM, Fujitsu, MicroScience and Western Digital. The drive I tried to "manage" is from HP ... I received from Pete an OnTrack version (original) which works with *all* disks ... I won the auction on eBay so in a few days/weeks I'll have the original documentation/manual too. I can scan the manual if anybody is interested. The version from eBay is 7.0? Contact off-list if anybody is interested (gooiAToceDOTnl). I appreciate your work, Dave, but the disk already runs perfectly. thanks anyway, - Henk, PA8PDP. > -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org]On Behalf Of David Woyciesjes > Sent: woensdag 27 oktober 2004 15:39 > To: On-Topic and Off-Topic Posts > Subject: Re: access to BIOS of DECpc > > > Well I finally found the disk manager floppies I was > thinking of... > Ontrack DiskManager v.2.4 dated 6/12/98 (mfg. for IBM) > Ontrack DiskManager v.? dated 1/8/99 (my note says something > about Quantum?) > Western Digital EZ Drive v.8.01W dated 1995 - 1996 > > ...of course, I don't have the e-mail address of who was looking for > them. Or maybe there's an appropriate FTP server to drop the files on? > I created images using RAWREAD on a windows PC. Sorry, > it's all I have at them moment... > > -- > --- Dave Woyciesjes > --- ICQ# 905818

21 years, 10 months

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access to BIOS of DECpc

by GOOI＠oce.nl

A short update on my efforts ... The Fujitsu-OnRack version did what was to be expected: it checks and sees that there is no Fujitsu drive in the PC and stops :-) Sorry to say that the version from Pete is for Western Digital drives and shows the same behaviour :-( I found a gfew manufacturer versions, but not for HP &%$#@!& However, there is till hope at 2 fronts: the version Dave will dig up, and there is one on auction at eBay (for just a few $$). If I will be the lucky winner I will share the data on the disk with everybody that is interested in a copy. It looks like this is an *original* OnTrack version that works with drives of any manufacturer. It's version 7 ... I'll report back later. thanks for all the help, - Henk, PA8PDP. -----Original Message----- From: cctalk-bounces(a)classiccmp.org To: On-Topic and Off-Topic Posts Sent: 22-10-2004 17:55 Subject: Re: access to BIOS of DECpc Apologies, I didn't get a chance to look for my OnTrack Disk Manager software last night. I'll definitely dig it up this weekend... Gooijen H wrote: > Hi all, > > thanks for all the responses, I have some leads now. > Here is a report what I tried so far. > Searching the Internet, I found the setup files set320p and pwr320p for > the DECpc 320P. Alas, the setup allows several items to be configured, > but the hard disk is not one of them! > Next, I found Ontrack DiskManager versions for IBM and for Microscience, > but the IBM version stops because it does not detect a hard disk of their > brand. BTW, my 2.5" hard disk is from HP, type C2965A. > The Microscience version allows 7 different types to be set, but up till > now I did not get satisfactory results. I can get to 50 Mb, but compared > to the original hard disk (40Mb) that is not much gain, especially when > you think that the C2965A is 420 Mb ...! > > I also have the version from Western Digital, EZ-Drive (Data Lifeguard) > but this version also stops because the disk is not from WD. > Not yet tried is a version from Fujitsu, and the version I received from > Pete (thanks Pete!). > I guess it's clear what I will be doing this weekend :-) > > thanks for all the help and advice, > - Henk, PA8PDP. > -- --- Dave Woyciesjes --- ICQ# 905818

21 years, 10 months

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more good auction finds.

by tponsford＠theriver.com

Some more good auction finds: Well, the IBM s/390 in good working condition (it was a generation 3, not 4) went for $125.00. The whole row of IBM stuff went for around $800. I thought the s/390 cabinet might be useful as a walk-in closet though :-) I consoled myself with a LS ADM3A beehive terminal with the lower-case rom (works great, no burn-in, excellent condition ) for $5.00 and a couple more alpha's..spent arount $15.00 Yesterday, I picked up another alphaserver 2100, mainly for parts, although it works pefectly, it only has 1 275mhz proc and 1 128MB ram board, a coupla fddi controllers and 4-5 disks; 26z,28z,29z. and a single power supply I got three of these beasts now..I'm sorry, it's a bad habit. A big pallet of miscellaneous stuff for around $7.50 that include quite a few dec cables, a decserver 90M, two cartons of new Exatape 170m AME 8mm tapes, (unfortunatley I only have a sun EL820 7/14GB tape drive) whole bunch of office stuff and a couple more dec fddi cards and cables and a 56k pci modem, along with a huge amount of 4-pin <--> rj45 serial cables. The real find though was an complete, (monitor,keyboard,cable) apparently non-working, Digital Professional 350. On inspection, it has a 000042 CTI-bus card, which is a CTI DECNA ethernet card...woohoo. Spent around 30 dollars for everything. Cheers Tom -- --- Please do not read this sig. If you have read this far, please unread back to the beginning.

21 years, 10 months

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new find: an Intel MDS 800

by melamy＠earthlink.net

the 8085/32K thing could be a memory issue (mine...). I have three different cpu cards and will take a "better" look at them tonight. I probably got my processors crossed... -----Original Message----- From: Dave Mabry <dmabry(a)mich.com> Steve, I never heard of an 8085-based cpu card for the Series II with only 32K of ram. Are you sure about that version? I'd bet that was not an option. I have several of both 8080- and 8085-based cpu cards.

21 years, 10 months

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anyone have INS8154 ICs?

by julesrichardsonuk＠yahoo.co.uk

Don't suppose anyone has a couple of INS8154 chips lying around in their junk box do they? I've been talking to a chap trying to restore a pair of Acorn System 1's, both of which are missing the INS8154 chips... Didn't occur to me at the time to ask here just in case :-) cheers Jules

21 years, 10 months

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VUPS measuring utility

by pat＠computer-refuge.org

I seem to remeber there being a VUPS-measuring DCL script which I was able to find a few years ago, which was probably mentioned on this list. Does anyone have a copy they could send me, or point me to where I could find it? My attempts at using google and looking through past email have been fruitless so far. Thanks much, Pat -- Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ The Computer Refuge --- http://computer-refuge.org

21 years, 10 months

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YAAYD (Yet another "Ten (0A) year" discussion) (was: GOPHER

by msokolov＠ivan.Harhan.ORG

Dwight K. Elvey <dwight.elvey(a)amd.com> wrote: > Maybe it should be based of if a person in their right > mind might actually use that machine for day to day business, > it should be excluded. Some people do use Classic computers for day to day business! I use my VAXen running 4.3BSD-Quasijarus for that. So I guess you would want to exclude me. Fine, feel free to ignore my posts. Fortunately there are others on this list I can ask if I have a technical question about some DEC or other quite on-topic stuff. > Of course this might very from person > to person. Anyone silly enough to use an old Altair for day > to day work shouldn't post questions to the list. OK, feel free to consider me too silly/stupid/crazy/whatever, you are entitled to your opinion. Unfortunately for you, you won't stop me >from posting on-topic technical questions to the list from my very on-topic VAX hosts. MS

21 years, 10 months

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YAAYD (Yet another "Ten (0A) year" discussion) (was: GOPHER

by dwight.elvey＠amd.com

>From: ard(a)p850ug1.demon.co.uk > >> If we are going to re-adjust the number of years to include/exclude, >> then let's just scrap the entire concept of a fixed number of years, >> and declare that classic computers ran until August 10, 1981 (the >> day before the IBM PC announcement). > >And thus exclude some true classics, like the HP Integral and PERQ 2T4 > >Much as I hate to exclude a particalar type of machine, maybe we should >just say that a machine is not classic if a substantially similar machine >is still mainstream, and thus has support available elsewhere. That >would, I think, cut out most Pentium-based machines (but would arguably >still include PC/XTs, etc). > >-tony > Hi Maybe it should be based of if a person in their right mind might actually use that machine for day to day business, it should be excluded. Of course this might very from person to person. Anyone silly enough to use an old Altair for day to day work shouldn't post questions to the list. Simple. Dwight

21 years, 10 months

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CDP 1861 Video Processor

by JMeyer101＠aol.com

I am trying to get a RCA Cosmac VIP up and running, but I have two problems. I'm not familiar with the connector that this computer uses for the display and don't know how to connect it to a monitor (or whatever type of display it uses). The second problem is I need to find the 1861 chip. Does anyone know of a source where I can get one of these chips? My last issue/question is verifying what type of computer I really have. The box the computer came in is for a 18S711, but then there is a hand written note saying it's actually a 18S022. How can I verify that it is indeed a 18S022? Thanks, Jeff

21 years, 10 months

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rack-mount Norsk Data ND100 available

by toresbe＠ifi.uio.no

Don't throw it away! :) Don't let that thing hit the dumpster! :) The ND-100 was a brilliant machine, and had an OS far from its time. I'm actually going to see one *today* and I'll get to bring some docs home, and I'll probably get a site up that will fix the scarcity of info on this machine. It has coolness, blinkenlights, and all the bells and whistles. Please, don't let that thing die! :\ Someone pick it up, I'll probably bring software to the table soon. -- Tore S Bekkedal <toresbe(a)ifi.uio.no>

21 years, 10 months

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TRS-80 model II keyboard(s)

by dave04a＠dunfield.com

At 18:57 26/10/2004 -0700, you wrote: >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. Hi Steve, I know another local collector here in Ottawa canada that has a TRS-80 model II and does not have a keyboard - obviously a keyboard in any condition would be highly desirable. What are your terms for obtaining one? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 10 months

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wirewrap tool

by lists＠microvax.org

Does anyone in the UK know of somewhere that rents out wirewrap tools... or has one I could borrow for a week or so? cheers guys alex/melt

21 years, 10 months

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ORION Unilab II

by nbreeden2＠comcast.net

Guys, I came across an old post of your on cctalk concerning the ORION Unilab II - I picked one of these up today at a swap meet for $1, it has the 8088/8086 POD, what I believe is a Z80 POD and several cables with pin connectors on the ends. I'm looking for doc's and software for the unit and was hoping one of you could help. -Neil JD Gouws cctech(a)classiccmp.org <mailto:cctech%40classiccmp.org> Sun Oct 13 19:09:25 2002 * Previous message: decnet <http://www.classiccmp.org/pipermail/cctech/2002-October/003341.html> * Next message: New <http://www.classiccmp.org/pipermail/cctech/2002-October/003354.html> acquisition, and question * Messages sorted by: [ <http://www.classiccmp.org/pipermail/cctech/2002-October/date.html#3345> date ] [ <http://www.classiccmp.org/pipermail/cctech/2002-October/thread.html#3345> thread ] [ <http://www.classiccmp.org/pipermail/cctech/2002-October/subject.html#3345> subject ] [ <http://www.classiccmp.org/pipermail/cctech/2002-October/author.html#3345> author ] _____ FYI: I have a lot of docs on Z-80 and some of the related hardware like the real-time-clock-thingy. I haven't searched the net to see if these are already readily availible or not. If they aren't availible on the 'net or incomplete I will gladly scan mine in if someone is interested. -----Original Message----- From: Rich Beaudry [mailto:r_beaudry@hotmail.com] Sent: 10 October 2002 04:41 To: cctalk(a)classiccmp.org Subject: Software for Orion Unilab II?? Hello all, As part of a recent eBay win, I acquired an Orion Instruments Unilab II. I have cables/software for the Rockwell 65/11EAB, and am looking for cables/software for any other processor, especially the 1802, Z-80, 8080, 8088. If anyone has software available, and cabling diagrams, please let me know! I have complete docs available, as well as the software for the 65/11EAB... I'd also be willing to write out a cable diagram for the 65/11EAB. Thanks! Rich B.

21 years, 10 months

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Silica gel was Re: Excercising vintage items

by pete＠dunnington.u-net.com

On Oct 26 2004, 12:55, John Foust wrote: > At 12:12 PM 10/26/2004, Paul Koning wrote: > >If it's calcium chloride you want, try snow melting "salt" -- that's > >often CaCl. > >Right. Silicagel is one of those. I don't think calcium chloride is, > >though -- but I'm not positive. > > Yes, but a mixture of NaCl and CaCl will happily suck up water > from the air until turns into a rich, gooey, metal-eating mess. That's the CaCl in it, and there's usually not much. Calcium chloride is not merely hygroscopic but deliquescent. It's "use once" -- you can't really dry it off again, effectively. If you don't mind a liquid, concentrated sulphuric acid is a more active dessicant than either silca gel or calcium chloride ;-) Phosphorus pentoxide is good too, and doesn't get wet and sticky. Pricey, though! > A silicate solution would be less reactive, I think, and if > it dried, it's almost a protectant. "Water glass" was once a > common way to extend the shelf life of eggs, as it prevented > evaporation through the shell. For a different reason, though. There's a slow double-decomposition reaction between the calcium carbonate in the shell and the sodium silicate (water glass) which leaves a layer of relatively impermeable calcium silicate on the eggshell. Sodium silicate isn't a drying agent. The drying action of silica gel (silicon dioxide) is due to adsorbtion, a purely physical (and easily reversible) process. Water molecules stick to the surface of the silica. The granules are extremely porous on a microscopic scale so they can have quite a lot of water adhering to them. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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Silica gel was Re: Excercising vintage items

by pete＠dunnington.u-net.com

On Oct 26 2004, 17:40, John Foust wrote: > At 05:26 PM 10/26/2004, Pete Turnbull wrote: [stuff] > That's what I get for posting to a list of known pedants without Googling > beforehand to make myself look smarter than I am. :-) LOL! -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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"System Technology Associates"? SDI-ESDI adapter

by doc＠mdrconsult.com

I'm sitting on a pair of half-wide rackmount storage devices silk-screened "RA 8" and "System Technology Associates" on front. Standard buttons - Write-Protect, Fault, A, B, on the front panel and an LED readout. 3 characters, I think. There's a Control Data Corp label on top of the box, but the model label on the side is STA. Model RA8-1100. Open PSU inside, and a logic board that converts the SDI I/O to talk to 2 Maxtor XT-8760-E ESDI drives. I can't find any mention of these puppies on Google. STA is apparently still operating as an HP VAR, but their site is less than useless. So, has anybody ever seen one? Doc

21 years, 10 months

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Excercising vintage items - was: Commodore 8010 IEEE-488

by dave04a＠dunfield.com

>I'm with you in this. I like to have all my collection working (some of >it I use -- this PC is well over 10 years old, heck the linux distro I'm >running is getting towards being on-topic). I enjoy tracking down faults, >I enjoy fixing them, and I enjoy seeing how a machine was designed and >built back then. > >That said, I take some care before applying power. In fact turning it on >is one of the last things I do. Me too. First I clean out all the dead flies, mice droppings, cobwebs and whatever else may have accumulated - this usually involves some level of disassembly, which is required anyway for the next step. Then I do a detailed visual inspection, paying special attention to "power" components, looking for discolored capacitors, resistors etc. I also look for corrosion in sockets/connectors, and anything else that looks at all out of the ordinary - I spend a fair bit of time at this. I always apply initial power through a current limiter (light bulb), which also gives me a visual indication as to how much power it is drawing. If possible, I disconnect the power-supply and energize it separately, measuring voltages. If it's analog, I ramp it up through a variac, monitoring the outputs and current draw as it comes up to operating voltage. If I can't disconnect the supply, I disconnect what I can, and pull anything socketed that I would have a tough time replacing. I don't like running equipment I am not familier with chips pulled - so I do so only long enough to verify that all power rails come up right. Recheck power rails with everything connected. Once powered up, I scope the power-rails to check for excess noise, hum etc. If the equipment does not "come up", I shut it down and do another visual. Then it's on to normal circuit debugging. The above routine may vary from one piece of equipment to another, depending on it's exact characteristics... Anything you would add? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 10 months

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YAAYD (Yet another "Ten (0A) year" discussion)

by jeff.kaneko＠juno.com

But you know, that would leave out alot of cool machines that came after 1984-- 88k-based DG AViiON's, and SGI workstations, for example. On Tue, 26 Oct 2004 15:23:15 -0600 emanuel stiebler <emu(a)ecubics.com> writes: > Fred Cisin wrote: > > > If we are going to re-adjust the number of years to > include/exclude, > > then let's just scrap the entire concept of a fixed number of > years, > > and declare that classic computers ran until August 10, 1981 (the > > day before the IBM PC announcement). > > Jut freeze it at 1984. > Orwell, Oh well ;-) > > > ________________________________________________________________ Speed up your surfing with Juno SpeedBand. Now includes pop-up blocker! Only $14.95/ month - visit http://www.juno.com/surf to sign up today!

21 years, 10 months

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Fibre Channel?

by pete＠dunnington.u-net.com

On Oct 26 2004, 21:48, Antonio Carlini wrote: > > What I REALLY want to know is how many SCSI drives are in the drive > > enclosures, how many drives total you have, and what the > > capacity of the > > individual drives are. If they are 18gb or 36gb or larger, and SCA > > connector (single mini-D connector on the drive itself within > > the carrier > > that slides into the drive enclosure) I'd be potentially interested. > > No idea about the Compaq stuff, but I picked up a FC disk the other > day that was being discarded. I'd been told that "there's no such thing > as a FC disk - they're all SCSI really". Well this one is a Seagate > ST31820FC and has a 40-way (not 80-way) SCA connector on the back. > > Any chance that this is SCSI in disguise :-) If so I'll go nab > a few of the 32GB ones for my VAXen, otherwise I get to try > the 9GB SCSI LVD ones instead! No, it's Fibre Channel. All my FC disks are like that, too, as the ones at work (almost all our main file storage is FC): 40-pin connector like a truncated SC. FC is like serial SCSI. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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Fibre Channel?

by jfoust＠threedee.com

I recently inherited a stack of Fibre Channel gizmos made by Compaq: three x12 hubs, a tape controller, and a Storageworks modular data router. eBay prices are all over the map: some sellers trying to unload them for $1000+, but the real auctions are going for less than $50 for each box. Each slot in the hub needs an optical transceiver; these seem to sell for $10 each. Cables? Many offered, few bidders. FC hard drives? $20 each. This stuff cost a fortune not so long ago. Why is it rock-bottom now? Will it ever be attractive to hobbyists? - John

21 years, 10 months

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GOPHER

by cb＠mythtech.net

>Otherwise, we'll soon be talking about Pentiums! Its all about the Pentiums! (screamed in a good Weird Al doing Puff-Daddy voice) -chris <http://www.mythtech.net>

21 years, 10 months

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software via radio

by julesrichardsonuk＠yahoo.co.uk

Was it this list where people were recently talking about receiving software via the radio? Apparently the UK service was called Basicode - I'm just slogging my way through a pile of documentation donated to the museum to sort out the useful stuff and stumbled across an apology letter from the BBC. Seems they'd moved transmission from Radio 1 VHF to Radio 1 MW and they didn't exactly tell people in advance :-) The letter's dated 18th October 1984. Seems that the data was transmitted as part of a radio programme called 'chip shop'. Now, I'm certain I remember seeing a manual about Basicode; I just left it in the pile at the museum that I'm yet to look through as it had 'basic' in the title and so didn't look immediately interesting :-) It was with a Dragon 32 machine (which also came with a lot of software), but whether any special hardware was needed I don't know. No practical use for anything these days of course, but an interesting snippet of computing history :-) cheers Jules

21 years, 10 months

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South Pole. (was: "System Technology Associates"?

by mmcfadden＠cmh.edu

Ethan wrote >Well... the easy answer is "whichever one we want". > >In fact, the one we have selected is the one that matches where our flights >come from so it's easy to synchronize operations. That means NZST/NZDT, >since our flights come from McMurdo, and their flights come from Christchurch, >NZ (yes, we are at GMT+13 right now, and we _do_ observe daylight savings >time, even though the sun is up 24/7) > >-ethan > Your daylight savings time process seems to fail since you have so many months when the sun doesn't come up and you are unable to use some of the saved daylight. Mike

21 years, 10 months

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Sun Tops Flashtalk Cards/Adapters

by alhartman＠yahoo.com

I've got a box full of (4 or 5) mixed sets of TOPS products. At least one of each of the following: Tops FlashTalk Card for the PC Tops FlashTalk Adapter for the Mac TOPS Software Probably more than a couple of each. If anyone is interested (looking for a few $$ not much, plus S/H.. Or a trade for something cool...), e-mail me off line. I also have at least one License to a Version 4 of Lantastic (and I can throw in an old ISA NE2000 Card compatible with it) in the box. Never used. Also for a small consideration (or something cool) and the shipping. Just looking to clear out the closet and get a couple of bucks towards upgrading my Mac G4 Tower to a faster processor. Regards, Al Hartman __________________________________ Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard. http://promotions.yahoo.com/new_mail

21 years, 10 months

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Fw: Vintage Computer Equipment

by jrkeys＠concentric.net

I got this email the other day and replied back to the guy that I could not use the machines that he has listed but would pass it on to others. Soon if anyone on the list is interested contact him directly. ----- Original Message ----- From: <marlami(a)juno.com> To: <jkeys(a)houstoncomputermuseum.org> Sent: Sunday, October 24, 2004 2:58 PM Subject: Vintage Computer Equipment >I have a collection of IBM based units, in good and operating condition. > Computer models 8088, 286 and 386 > Monitors > Keyboards > Hard Drives > Memory > Modems > Various Cards > Related Books and Manuals > Could you please direct me to someone who might be interested in Vintage > Computer Equipment? Will you please "reply" to this email? > Thank you, Ray >

21 years, 10 months

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Intel iPDS 100 boot disks / software?

by gslick＠gte.net

Anyone know where I can get some boot disks and other software for an Intel iPDS 100?

21 years, 10 months

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test-drb