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

URGENT - DEC 11/83 (?) needs to be picked up this weekend (10/9)

by jack.rubin＠ameritech.net

DEC 11/83 (or 73?) system with 2 RP06 drives and several DECwriter terminals needs to be picked up this weekend in the New Buffalo, MI area (Lake Michigan near the Indiana/Michigan border) - you'll need at least a van or large pickup truck. Please come prepared to take it all - no cherry picking! Email me immediately or call me tomorrow (Friday, 10/8) at 847.424.7320 (work) or 312.804.4508 (cell). Owner is clearing out his warehouse over the weekend. Jack Rubin jack.rubin -at- ameritech.net

21 years, 10 months

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reading 3480 tapes

by chris.muller＠mullermedia.com

Hi gang, >>3490 is 36 track<< Hate to pick nits, but 3490 is actually 18 track with compression--physically the same recording method as 3480, but with an IDRC compression chip. The 3490E is 36-track. regards, Chris www.mullermedia.com

21 years, 10 months

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OT Re: now there's a good head crash

by pete＠dunnington.u-net.com

On Oct 7 2004, 19:31, Bob Shannon wrote: > Be careful with high velocity rounds against pins, I've seen shots come > right > back at you. > > Bowling pin shooters (its a handgun sport) use flat-pointed, heavy rounds to > 'smack' the pins back off the table. Indeed, we used to use "pin-grabbers" -- like a flat-nosed "wadcutter" but with teeth moulded into the front to reduce the chance of bouncing back. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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Ohio Scientific Challenger 4P/MF

by JMeyer101＠aol.com

Hello all, Does anyone have any information or instructions on how to connect the 4P to a display? I have the computer but I'm not able to connect it to anything. There are 6 what appears to be RCA type plugs on the back, 2 wide by 3 tall, with + over one column and - over the other. What do I need to do to get this thing working? I also have an Intellec 4 that I am trying to find accessories and information for. Thanks, Jeff

21 years, 10 months

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media what died a'bornin'

by dwight.elvey＠amd.com

>From: "Vintage Computer Festival" <vcf(a)siconic.com> ---snip--- >There was also a discussion about bouncing signals off the moon to create >a delay-line memory of sort. > >What if we were to preserve software by encoding it as audio and bouncing >it off the moon? I figure we could probably save a few old programs that >way :) > Hi You'd need a few different frequencies. The round trip to the moon and back is only 2.6 seconds. It would be much more reliable if there was a repeater on the moon otherwise the signal would be weak. Dwight

21 years, 10 months

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media what died a'bornin'

by dwight.elvey＠amd.com

>From: "Tom Jennings" <tomj(a)wps.com> > >On Thu, 7 Oct 2004, Dwight K. Elvey wrote: > >> You'd need a few different frequencies. The round trip to >> the moon and back is only 2.6 seconds. It would be much more >> reliable if there was a repeater on the moon otherwise the >> signal would be weak. > >Fill the intervening space with a gas or liquid and do it >accoustically, you'd get a lot more bits in there. I will >hand-wave the accoustic energy loss problems as obvious. > Hi Use a mercury delay line hung from a sky hook. Put multiple repeaters along the line. One can add some switch boxes along the line so that one can short path the delay for more rapid response for specific packets. You'd basically exchange an originally out going packet of an in going packet. If a good algorithm wasn't used, some packet might not ever make the full loop. Dwight

21 years, 10 months

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Early PDP-11 memory question

by wacarder＠usit.net

I have a question for the PDP-11 Unibus experts here. I recently obtained a PDP 11/35 that had been dismantled some years ago. As part of this, there were some older style core memory board sets. These were the 8k H214 and H215 core boards and their corresponding G110 and G231 boards. The backplane in the CPU box next to the CPU backplane is an MF11-LP. There are three other MM11-UP backplanes that supposedly came out of a big BA11 expansion box. I also have the original large field print sets for the MM11-L and MM11-S memory, which both seem to go along with the H214/H215/G110/G231 board sets. Question: Does anyone know if the older 8k H214/H215/G110/G231 memory board sets will work in the backplanes that I have? The previous owner says that this memory went with the backplanes that I have. I have acquired some 16k H217c, G214, and G235 memory board sets, along with the M8293 and M7259 boards, so I can get more core in the same space, but I would like to use the 8k core too, if it can be used with the backplanes I have. Thanks, Ashley

21 years, 10 months

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now there's a good head crash (revised)

by dvcorbin＠optonline.net

>>> Here is something I dont understand. >>> .45 is about 11,5 mm, while 7.62 is uuuuhhh 7.62 mm. >>> How can the .45 come out worst? >>> Nico (sniper in Danish National guard) >>> The .45 runs Windows The 7.62 runs Linux [or maybe it has something to do with velocity....] David [ Major eater of Danish Pastries in the US]

21 years, 10 months

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Tek 1230 pods

by patrice.ulrich＠eost.u-strasbg.fr

hello i have an old tek 1230 but without pods ! funny i was searching the internet for pods as i saw that you are searching too. Maybe did you found a reseller, or maybe do you have a tip or explanation on how it works to give to me. Thanks -- Patrice ULRICH EOST - Institut Physique du Globe de Strasbourg Laboratoire Proche Surface (UMR 7516 CNRS-ULP) 5, rue Ren? Descartes F-67084 STRASBOURG Cedex FAX 03 90 24 01 25 Email : patrice.ulrich(a)eost.u-strasbg.fr

21 years, 10 months

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VCF back online

by vcf＠siconic.com

As is traditional, the vagaries of the universe conspired to take down my web server right after I released the latest issue of the VCF Gazette. It's funny how you'll be up all night working on something major, and you think, "I should back this up." But then you're so tired you decide to do it in the morning. Then the next day your server goes down and you have no idea why. Ugh. Anyway, in this case it turned out to be a case of the server wanting to have fsck run manually and so it never rebooted after some power glitch. Fortunately, nothing was too out of whack: a few lost inodes and some confused chains and other nonsense. I've now moved my server back to within my own confines and have backed it up, plus I'm finishing up on a new (faster!) web server, which will eventually have a lot of storage and I hope to mirror some of the fine repositories on the web. Anyway, if you tried to contact me since Tuesday and I have not responded, this is why. I will be catching up and replying by later today. -- 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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Can anyone read a 360K 5.25" NON-IBM floppy for me?

by tomj＠wps.com

I've got a few (meaning, one or two) old floppies of mine that I found, and hope are still readable, one with the sole copy I know of of an 8086 ROM monitor debugger I used to bring up a lot of machines with. It's stored on a 360K 9-sector/track standard-formatted MSDOS diskette with the right fatID and all that, but it does NOT contain the IBM formatted crap in the boot sector that many PCDOS implementations require. Meaning, it will read fine (assuming it's still good) on MSDOS but probably not PCDOS. (On PCDOS diskettes like this generate something like "unformatted" error, Retry Ignore Abort.) If anyone with such a capability could slurp off the source (text) files and simply email them to me, and toss the original media, I'd appreciate it. I'm in Los Angeles, but anywhere in North America would be cheap postage.

21 years, 10 months

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Fwd: Western Union TWX V Diagnostic Control Panel

by cfandt＠netsync.net

I forwarded Joe's request for info on the TWX Diag Control Panel from the ClassicCmp (cctech) list to the Greenkeys email list. Both Joe and I got a private reply but I feel some others on both lists will be interested in Russ' reply. To wit: >From: Russmill47(a)aol.com >Date: Mon, 4 Oct 2004 12:37:40 EDT >Subject: Western Union TWX V Diagnostic Control Panel >To: cfandt(a)netsync.net >Cc: rigdonj(a)cfl.rr.com > > >When Western Union acquired the TWX network from AT&T, there was a need to >build a new network that would allow Western Union to integrate the >existing Telex network with the TWX network. > >Western Union designed and built the Digital Exchange Network (DES) for >this purpose. DES was not the huge success that everyone hoped as there >were many software problems that caused reliability and availability problems. > >The TWX V Concentrator was located at the edge of the WU Central Office >network, usually within a couple of thousand cable feet from the serving >Local Exchange (Bell) Central Office. >Typically, these concentrators would handle up to fifty (50) TWX >customers, handling all the edge interaction with the customer TWX machine >on one side of the box with the rest of the box providing TDM services >that consolidated the 50 customer signals into a single digital data >stream. In small locations, which could be rental space in a telephone >answering service location, there would be a single box. Medium size >locations would have multiple boxes that would feed their digital signals >to an intermediate box that would further Mux these separate digital data >streams to a high speed (9600 bps) Paradyne Modem. > >The Diagnostic Control Panel was mounted at the top of the concentrator >and was used to monitor the internal health of the box as well as provide >information as to the status of the individual subscriber links and the >high speed digital data link. The technology is state-of-the art early >1970s so you can look to processor speeds of 1-2MBps. A lot of this >technology was designed and manufactured in Mahwah, NJ. This was the R&D >headquarters for WU and just up the road from WU galactic headquarters in >Upper Saddle River, NJ. > >Russ Miller ><mailto:russmill47@aol.com>russmill47(a)aol.com >WA3FRP So it appears the DES was one of the early implementations of commercial digital communication. Thanks for the enlightenment Russ! Regards, Chris F. NNNN Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.antiquewireless.org/

21 years, 11 months

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Commodore PET 4032 problem (4 beeps)

by dave04a＠dunfield.com

> I don't know much about PET's but I guess "working" >means it beeps 4 times. That is working, isn't it? I'm not the most knowlegable about PETs in this group, but I have been working on a bunch of them lately - I've recently debugged startup problems with a 4032 and several 8032s (essentually the same board), so I will try and offer somewhat more helpful information .... :-) The 4032 and 8032 normally give a "beep series", which might be interpreted as "four beeps" - is it sort of one long continuous beep that warbles four times, or is it four distinct beeps? If the former, then it's normal, if the latter, then I don't recognize it. I dug through the starup code a fair bit in debugging my SuperPet (8032 from 6502 point of view) and I don't recall anything along the way before video-init and startup message that would generate beeps other than the "Warble". First, make sure the monitor is working (There's a brightness control on the back which may have been turned down) - Check for power to the monitor, and if you have a scope, look for drive signals. If you think the monitor is working, then you can get into the internal monitor by grounding the "diag" pin on the User port - In my experience, this comes up a LOT easier than BASIC, so it may come up even if Basic won't. Once you get that far, then the rest should be easy. In working on a 4032 and three 8032s recently, here's what I found: - Bad 4116 DRAM's - I ended up replacing 5 DRAM's in total (IMHO This is a very likely reason for what you are observing - one of mine hung in the ram-size function due to a bad DRAM) - Bad 2114 Video SRAM's - I had to replace two of these (and a few more in Commodore disk drive units) - these will cause "bad video" but you should still get SOME video. - Bad power regulator the 12v regulator on one of my 8032s. Didn't run across any this time, but I have seen bad ROMs in PETs in the past. 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, 11 months

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Commodore PET 4032 problem (4 beeps)

by dwight.elvey＠amd.com

Hi Stan I don't know much about PET's but I guess "working" means it beeps 4 times. That is working, isn't it? Dwight >From: "Stan Sieler" <ss(a)allegro.com> > >Hi, >Does anyone know what 4 quick beeps at >power on means for a Commodore PET 4032? > >When I hit the power switch, the 4 beeps >come immediately, and then nothing ... >no sound, and nothing at all on the CRT. > >This is a new-to-me 4032, allegedly working. > >thanks, >Stan > >

21 years, 11 months

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DEC RM05 mountings

by julesrichardsonuk＠yahoo.co.uk

Does anyone know how an RM05 drive assembly fastens to the massbus control cab beneath? Doesn't seem likely that the drive assembly just rests on top - but there's no obvious way of securing the drive/cab together. I assume something's supposed to thread through the bracket at the top-front of the control cab and attach to the drive, but what/how? And then what secures the drive toward the rear? We almost got out Decsystem 570 completely rebuilt yesterday (it was totally dismantled and parts have been spread everywhere for the last few years) - just got the battery backup units and comms brackets to bolt on, and a couple of minor bits of trim to find and it's done. I'd stick some pictures up somewhere but I've just realised I have no idea how to get them off the camera with this new version of linux - d'oh! :-) cheers, Jules

21 years, 11 months

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Bah! I've got too many HP-110 Plus portable computers!

by tosteve＠yahoo.com

Yes, I have too many HP-110 Plus portable computers - this is the one with the large screen - 80 X 25 text. Works great, no power adapter, but the soft carrying case is included. I'd love to trade one for an Otrona Attache, Atari Stacy, ZX-Spectrum, cold hard cash, ???? __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail

21 years, 11 months

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Loading Acorn (BBC) sideways RAM.

by ard＠p850ug1.demon.co.uk

This is a really trivial question, but I wasn't really a BBC micro hacker in the old days, I am planning some upgrdes to a BBC Model B+ (the fact that this particular B+ lives in the bottom of an Acorn Cambridge shouldn't matter...). One of them is to combine some of the ROMs (the B+ can take 27256 32K byte EPROMs), thus freeing up some ROM sockets and put a RAM chip in one of them. I then have to fiddle the write-enable line [1] (should be easy) and I have 32K of sideways RAM. The hardware doens't worry me (I have schematics...). But how do I load a ROM image into the sideways RAM? Is there some loader program I need (and where do I get it)? Anything I should know about the image file on disk (anything about the start/end/entry addreeses in the direxctory, for example)? [1] I believe it's a good idea to be able to write-protect the sideways RAM, but I don't want to drill holes in my Cambridge. Has anoyne ever used the cassette motor line for this? Seems like an obvious thing to use. -tony

21 years, 11 months

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media what died a'bornin'

by marvin＠rain.org

The Tech Journal had a whole series of programs for a while. When I got my Cauzin SoftStrip reader, I kept an eye open for any magazines that could be used with the reader. They are still waiting to be read :). > Tom Jennings <tomj at wps.com> wrote: > > > >I remember that! It was some bar code variant, I think the > >code was some BASIC hack small enough to type in. I have no > >recollection what the hardware was though. 1980s. > > Cauzin SoftStrip. Basically a 2-D barcode, read with a handheld scanner. > > > -- > Don Hills

21 years, 11 months

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In search of... DECtape drives

by ddl-cctech＠danlan.com

Brad Parker <brad(a)heeltoe.com> wrote: |Anyone on the boston or mass/nh/ct area have a working 9-track drive |which can read 800bpi tapes? I have two drives which can in theory read 800bpi. One is a relatively modern quad density unit and the other is an old rack-mount dual. The latter is not currently connected to a computer, but it could be if the former fails to perform. I'm in Gloucester. Dan Lanciani ddl(a)danlan.*com

21 years, 11 months

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Need an HP 2100A front panel key

by gslick＠gte.net

Anyone happen to have a spare HP 2100A front panel key or know where I can get one? The HP 2100A I acquired is locked in the OFF position and disassembling the switch to bypass the lock doesn't look like too much fun. I think someone offered a key when I first asked about this a long time ago but I didn't take them up on the offer at the time. -Glen

21 years, 11 months

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Teletype...

by cmcnabb＠gmail.com

On Tue, 05 Oct 2004 21:45:57 -0400, David V. Corbin <david(a)dynamicconcepts.us> wrote: > Before bidding, would it be possible to get the following pictures: > > 1) Internals (cover off would be ideal, but listing the little cover should > be sufficient > 2) Closeup of the key tops > 3) Printed sample I've posted them at http://www.4mcnabb.net/images/ASR33 .

21 years, 11 months

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ASR-33 Teletype Available

by cmcnabb＠gmail.com

My lovely spouse has finally laid down the law on the computer collection. I've pondered for weeks the best way to move the stuff out, and I think I've settled on a silent auction here on the classic comp mailing list. This will (hopefully) keep it out of the hands of scrappers and intact, since most of it still works, and I'm not really looking for Ebay prices, just a new home and maybe my investment back. So here is the deal. I'll accept bids for one week after an item is posted. I'd prefer the winner pick the item up, but I can deliver anywhere within about a 700 mile radius of Blacksburg, VA. Elsewhere we'll have to work out once we know the final destination. So, without further delay, here is the first thing - a nice *WORKING with no missing pieces* ASR-33 teletype. A picture is at http://cmcnabb.cc.vt.edu/projects/pdp8/asr33.jpg and I'll throw in a whole slew of unpunched papertape and unprinted paper. Bids and questions should be emailed to cmcnabb(a)gmail.com any bids sent to the list will be ignored. The teletype listing will end on 12 October, 2004.

21 years, 11 months

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Commodore PET 4032 problem (4 beeps)

by ss＠allegro.com

Hi, Does anyone know what 4 quick beeps at power on means for a Commodore PET 4032? When I hit the power switch, the 4 beeps come immediately, and then nothing ... no sound, and nothing at all on the CRT. This is a new-to-me 4032, allegedly working. thanks, Stan

21 years, 11 months

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DecTape & LincTape. (David V. Corbin)

by djg＠drs-c4i.com

For details on format see http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&selm=a8ncg5%24brf%241%40… http://groups.google.com/groups?q=linctape+dectape&hl=en&lr=&ie=UTF-8&selm=… Select complete thread to see the discussions or search for DECtape LINCtape for more discussions. I was able to read on a PDP-8 TD8E by putting an inverter in the timing track signal. Still was a little marginal. Haven't gotten back to trying to get it better. David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights. Have any PDP-8 stuff you're willing to part with?

21 years, 11 months

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In search of... DECtape drives

by mbg＠TheWorld.com

I was contacted recently someone at WPI who had been approached about reading an old DECtape. They no longer have the DEC-10 at WPI, so need to find someone with working DECtapes who might be able to read the tape... If anyone has a working DECtape drive on their system, please let me know so I can pass it on... Megan

21 years, 11 months

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Need to know DDS drive used to write backup tapes

by vcf＠siconic.com

I am trying to figure out what tape drive was used to write some DDS tapes that I'd like to read. The only clues I have are that they were written on a VAX of some sort under VAX OpenVMS 5.5-2. Any ideas? Thanks! -- 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, 11 months

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Other PDP11 simulators

by ron.hudson＠sbcglobal.net

Are there any PDP11 simulators that run "right down on the iron" of a PC? I know there are PDP11 cards that can be put in PCs, that's not what I am looking for.

21 years, 11 months

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Can anyone read a 360K 5.25" NON-IBM floppy for me?

by marvin＠rain.org

I have "several" MS-DOS machines with 5 1/4" floppy drives that would probably do the job, and most versions of DOS from 1.1 on up through 6.22. I'll be down in LA this Saturday (Fullerton) and could bring a machine, or we could meet and I could get the floppies, or ... :). Or you could mail them up here (Santa Barbara), and I could retrieve the text files. Let me know if you still need help with this. Marvin > From: Tom Jennings <tomj(a)wps.com> > I've got a few (meaning, one or two) old floppies of mine that > I found, and hope are still readable, one with the sole copy > I know of of an 8086 ROM monitor debugger I used to bring up > a lot of machines with. > > It's stored on a 360K 9-sector/track standard-formatted MSDOS > diskette with the right fatID and all that, but it does NOT > contain the IBM formatted crap in the boot sector that many > PCDOS implementations require. > > Meaning, it will read fine (assuming it's still good) on MSDOS > but probably not PCDOS. (On PCDOS diskettes like this generate > something like "unformatted" error, Retry Ignore Abort.) > > If anyone with such a capability could slurp off the source > (text) files and simply email them to me, and toss the original > media, I'd appreciate it. I'm in Los Angeles, but anywhere in > North America would be cheap postage.

21 years, 11 months

1
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Z8001/Z8002 CPU

by jim＠smithy.com

Anybody know where I can find documentation for these CPUs? I have some Z8002's that are just waiting to be wired up to a board...if only I knew how to use them! I have the datasheet, but no good programming info. Jim

21 years, 11 months

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Reading 3480 tapes

by vcf＠siconic.com

Does anyone have the capability to read 3480 tapes? Ideally, I'm looking for someone in the Silicon Valley area who has the capability. Thanks! -- 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, 11 months

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Z8001/Z8002 CPU

by dwight.elvey＠amd.com

Hi Jim If you were doing 8002's I'd be glad to help you get a CP/M-8000 up and running. Much of the code is written for the segmented machine so it would need to be converted to non-segemented for the 8001. It could still be done but would require a lot more work and you'd need a reasonable bank switching setup. I also don't have source for all of it so it would require a little reverse engineering. Those pieces that I don't have source for, I do have object libraries so building a 8001 setup isn't as much of an issue. Dwight >From: "Jim Donoghue" <jim(a)smithy.com> > >Anybody know where I can find documentation for these CPUs? I have some >Z8002's that are just waiting to be wired up to a board...if only I knew >how to use them! I have the datasheet, but no good programming info. > >Jim > > >

21 years, 11 months

1
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Z8001/Z8002 CPU

by dwight.elvey＠amd.com

Hi Try: http://www.kranenborg.org/z8000/ and ftp://ftp.groessler.org/pub/chris/olivetti_m20/ Later Dwight >From: "Jim Donoghue" <jim(a)smithy.com> > >Anybody know where I can find documentation for these CPUs? I have some >Z8002's that are just waiting to be wired up to a board...if only I knew >how to use them! I have the datasheet, but no good programming info. > >Jim > > >

21 years, 11 months

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Need an HP 2100A front panel key

by dwight.elvey＠amd.com

Hi Glen If you don't find someone with a key, most any lock smith will make one for around $15 or so. I've had two keys made for me. One was a round one and the other was a double sided. You just need to bring the lock to a good smith. Dwight >From: "Glen Slick" <gslick(a)gte.net> > >Anyone happen to have a spare HP 2100A front panel key or know where I can >get one? > >The HP 2100A I acquired is locked in the OFF position and disassembling the >switch to bypass the lock doesn't look like too much fun. I think someone >offered a key when I first asked about this a long time ago but I didn't >take them up on the offer at the time. > >-Glen > > >

21 years, 11 months

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Can anyone read a 360K 5.25" NON-IBM floppy for me?

by dave04a＠dunfield.com

At 11:37 05/10/2004 -0700, you wrote: >I've got a few (meaning, one or two) old floppies of mine that >I found, and hope are still readable, one with the sole copy >I know of of an 8086 ROM monitor debugger I used to bring up >a lot of machines with. > >It's stored on a 360K 9-sector/track standard-formatted MSDOS >diskette with the right fatID and all that, but it does NOT >contain the IBM formatted crap in the boot sector that many >PCDOS implementations require. > >Meaning, it will read fine (assuming it's still good) on MSDOS >but probably not PCDOS. (On PCDOS diskettes like this generate >something like "unformatted" error, Retry Ignore Abort.) > >If anyone with such a capability could slurp off the source >(text) files and simply email them to me, and toss the original >media, I'd appreciate it. I'm in Los Angeles, but anywhere in >North America would be cheap postage. Hi Tom, Have you tried hooking up a 5.25" drive to winblows and see if it can read the files off? I'd also bet that anyone with Linux could mount them and read them for you. If you can't find anyone closer, I'm sure I could get the data off (I've written my own MS-DOS compatible FAT file systems). I'm located near Ottawa, Ontario Canada - give me a buzz off-list if you want to persue this. 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, 11 months

1
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FW: DecTape & LincTape.

by dvcorbin＠optonline.net

All, I am tring to remember, what are the differences between DecTape and LincTape..... TIA.

21 years, 11 months

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cray3 part on ebay

by rachael＠rachael.dyndns.org

Hi have anyone seen this ? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11223&item=572406485… regards Jacob Dahl Pind -- CBM, Amiga,Vintage hardware collector Email: rachael(a)rachael.dyndns.org url: http://rachael.dyndns.org fido: 2:237/38.8

21 years, 11 months

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Syntertek & Rockwell

by dwight.elvey＠amd.com

Hi Richard I was just looking for Synertek stuff and came across your page on the R65 and SYM-1. I noticed that you had the manual for PL/65. I'd been looking for this info for some time. I have the PROMs but didn't have the manual. I think I have the Rockwell manual for the Forth. I'm not setup to scan stuff but maybe we can setup someway to get them scanned. I live in Santa Cruz Calif. I've been getting a floppy disk interface up and running for the SYM-1. It is a slow project that I've been fiddling with for some time. I have one of the PerSYMone ( I think that is the right spelling ) FDC-1 cards that is intended to work with the SYM-1 monitor ROM. The card I had came from Synertek and had all the socketed parts removed. I've been collecting the various pieces needed to get it running. I located a dump of the original ROM and also a modified DOS that can be used as well. I've been having problems finding a DP8303 bidi-bus buffer but I think I can work around that. I disassembled the code on the ROM and figured out what the address decoder PROM needed ( a 82S129 ). I'm at the point now that I just need to connect up a bunch of stuff ( powersupply, KTM-2, SYM-1, FDC-1 and floppy drive ) to try it out. Dwight

21 years, 11 months

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PC-MOS

by marvin＠rain.org

IIRC, PC-MOS consisted of more than just the software. One of the hardware cards was basically a multi-serial port card, and I don't remember the other one. One of my clients was running PC-MOS, and they were commenting on how slow it was (running on an original 6 MHz IBM AT that I currently have) with only one workstation connected (circa 1986). One night, I went in and ran a disk defrag program, and the next day, the comments had changed to how quickly this was running :). > No, I wasn't looking for it. I found a copy and was asking what it was. > Someone did want it and asked for it so I gave it to them. IIRC It was > someone in Australia. I wonder if this is the copy that I sent them? > > Joe > > > At 11:28 PM 10/3/04 -0500, you wrote: > >I remember someone was looking for a copy of this once. Here is a boxed > >original with all docs, etc. > > > >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4619&item=5128471513 > &rd=1 > > > >Jay West

21 years, 11 months

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reading 3480 tapes

by chris.muller＠mullermedia.com

We're on the East Coast, but can read all sorts of tapes. (well, maybe not quite all :-) We've even done some Vydec disks recently, if anybody can remember those beasts. Have a look at www.mullermedia.com. Thanks.

21 years, 11 months

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HELP NEEDED: DEC PRO(-3xx) INTERNALS

by waltje＠pdp11.nl

Hi all, For a fun project (I am porting ULTRIX-11 to the PRO) I could use some help with figuring out some of the machines' internals. If you have info, please contact me off-list ! 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, 11 months

1
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PC-MOS

by jwest＠classiccmp.org

I remember someone was looking for a copy of this once. Here is a boxed original with all docs, etc. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4619&item=5128471513… Jay West

21 years, 11 months

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VCF Gazette Volume 2 Issue 4

by vcf＠siconic.com

VCF Gazette Volume 2, Issue 4 A Newsletter for the Vintage Computer Festival October 5, 2004 Miraculously on schedule, it's time for the next installment of the Vintage Computer Festival Gazette! Vintage Computer Festival 7.0 VCF East 2.0 Exhibit Awards and Photo Gallery VCF Producer Sellam Ismail on G4TechTV's Screen Savers October 19 Subscribe to the Computer Collector E-mail Newsletter Vintage Computer Festival 7.0 ---------------------------------- Since the last VCF, the trials and tribulations of daily life made their inevitability painfully attendant: bills came due, accidents happened, bad days at the office were had, arguments broke out, and the morning paper was thrown into the sprinklers yet again. Woe is us! But lo, a bright and shining beacon of nerdilicious salvation is on the horizon and draws nigh. The Vintage Computer Festival returns! Vintage Computer Festival 7.0 is right around the corner, taking place on November 6-7 at the Computer History Museum in Mountain View in (still) sunny California. Flights are cheap and so is the admission, so you have little excuse to stay home cramped behind your computer trying in vain to craft that perfect Google search term. Just put all that nonsense behind you and join us for some fanatical Festival folly! We are honored to once again have the Computer History Museum as our sponsor! And as always, we bring you yet another wonderful line-up of speakers, exhibitors, and special events, including a 30th anniversary retro- spective of Maze War, the original "first-person shooter" videogame, plus so much more! In fact, we're planning so much for this year's event, it might possibly be even too much! Some of it we can't even mention yet because we're still in the middle of planning it. So come on out and watch us put on a gargantuan geek gala guaranteed to gasify your gall bladder...either that or watch us crash and burn in spectacular style. Either way, it's sure to be entertaining! We've Got Lodging! For out of town guests, the VCF has arranged a hotel room block at the Residence Inn Palto Alto Mountain View, located within 3 miles of the Computer History Museum and featuing, among other fine amenities, an on-demand shuttle service between the Inn and the Computer History Museum. The special VCF rate is US$79 per night. Reservations must be made by October 15 to take advantange of this terrific rate so do not delay! Full details are available here: http://www.vintage.org/2004/main/lodging.php Computer History Galore! The VCF speaker schedule has moved back to a "track" style this year. The talks are assembled into themes for the most part. We've got another terrific line-up! Check it out: Saturday, November 6 Track 01 Time Topic Speaker ------- ------------------------------------- ------------------- 10:00am Using Vintage Computers in Forensics Fred Cohen 11:00am Documenting the BBS Jason Scott 12:00pm The Art of Textmode Christian Wirth 1:00pm History of FidoNet Tom Jennings Track 10 Time Topic Speaker ------- ------------------------------------- ------------------- 11:30am Confessions of an Entrepreneur Dr. Robert Suding 12:30am VCF Ramblings Sellam Ismail Sunday, November 7 Track 01 Time Topic Speaker ------- ------------------------------------- ------------------ 10:00am Early IBM History John Sailors 11:00am The IBM 360 Evolution and Revolution Jerome Svigals 12:00pm Early Microprocessor Design Nick Tredennick 1:00pm Maze War Retrospective Panel Track 10 Time Topic Speaker ------- ------------------------------------- ------------------- 10:30am Things You May Not Know... Evan Koblentz 11:30am Tipping Sacred Cows Tom Jennings 12:30am The Art of Vintage Computers Christine Finn 1:30pm Neo-Retro: The XGameStation Andre LaMothe More information on the VCF 7.0 speakers can be found here: http://www.vintage.org/2004/main/speaker.php BBS Documentary Screening Jason Scott, proprietor of textfiles.com--the Internet's largest collection of historic textfiles--has completed work on his BBS documentary. "BBS: The Documentary" spans across seven separate films which cover every aspect of the world of bulletin board systems, tracing the history of the BBS as well as the historic figures that made it a distinctly unique mode of digital communication. This will be the first public screening of the documentary, and audience input >from VCF attendees will determine the final cut of the film series. More information on the screening can be found here: http://www.vintage.org/2004/main/screening.php Computer History Museum Tours As always, the Computer History Museum's terrific staff will be giving VCF attendees tours of the Museum's fantastic collection. Tours are held in the afternoon and run every half an hour. Tour information is available here: http://www.vintage.org/2004/main/tours.php Exhibit Your Computer! One of the best ways to enjoy the VCF is by participating directly. Be an exhibitor! As an exhibitor, you get to be a part of all the behind-the-scenes action. Plus you get a chance to show off your favorite computer and perhaps even win an award for an outstanding exhibit. The Best of Show award includes as a prize the Replica 1, a software compatible re-creation of the legendary Apple-1 computer, courtesy of its creator, Vince Briel. So don't delay, sign up today! http://www.vintage.org/2004/main/exhibit.php More information about Vince Briel's Replica 1 can be found on his website: http://home.comcast.net/~vbriel/ Buy, Sell and Trade at the VCF Marketplace As always, one of the most exciting aspects of the VCF is the Marketplace, where you can find a large and varied assortment of some of the most fantastical old computer thingies anywhere. Find that odd part you've been seeking out for your collection, then touch, smell, even taste it if you like, before haggling out a deal. There is simply no better place to buy and sell vintage computers than at the VCF Marketplace. Vendor booths are still available. For more information on selling at VCF 7.0, please visit: http://www.vintage.org/2004/main/vendor.php The VCF 7.0 BBS is Live! Communicate with fellow VCF 7.0 attendees on the VCF 7.0 BBS! Set up trades and carpools, talk about exhibiting, and discuss generally anything about the upcoming Festival: http://www.vintage.org/2004/main/bbs.php So Much More! Complete information about VCF 7.0, including the speaker schedule and exhibit roster, as well as lodging information and driving directions, can be found on the VCF 7.0 web pages: http://www.vintage.org/2004/main/ Keep in mind that the VCF will from now on be held during the first weekend in November. VCF East 2.0 Exhibit Awards and Photo Gallery --------------------------------------------- The 2nd annual Vintage Computer Festival East was held on July 16-17 at Sun Microsystems' Burlington campus in Burlington, Massachusetts. The turnout was terrific, and so were the speakers and the exhibits. If you didn't make this event, you'll certainly want to put it on your calendar for next year. A photo gallery of the VCF East 2.0 exhibits can be found here: http://www.vintage.org/gallery.php?grouptag=VCFEAST20 In the meantime, we are pleased to present the results of the exhibit awards. Class Awards First, Second and Third Place ribbons are awarded in each of five classes that represent major areas of effort in computer collecting and preservation. Judging is based on a set of criteria including: appearance, condition, originality, authenticity, completeness, and functionality. Additional judging takes into account the breadth of the exhibit by assessing the inclusion of documentation and software. Class A: Homebrew, Kit or Educational Computer - Any Vintage 1st Place: Vince Briel - Replica 1 2nd Place: Bob Maxwell - A Homebrewer's OSI Superboard 2 and Offspring 3rd Place: Vinal Applebee - Before There Were Blinkenlights Class B: Manufactured Personal Computer - Pre-1981 1st Place: Bill Sudbrink - The Woodies 2nd Place: Andrew Molloy - Zeda 580 Integrated Video Computer System 3rd Place: Devon McCullough - SOL-20 Dialup to ARPANET Circa 1976 Class C: Manufactured Personal Computer - Post-1981 1st Place: Michael Thompson - Sun Microsystems History 2nd Place: Jeff Armstrong - DEC Rainbow 100 Dual Monitor Setup 3rd Place: Tom Owad - Fibercorp Rack-mount VME-bus Macintosh Class D: Mini-computer or Larger System - Any Vintage 1st Place: Jeff Katz - PDP-8/e 2nd Place: Bob Shannon - HP1000 Minicomputer Preservation/Restoration Class E: Open 1st Place: Curt Vendel - Atari 7800 2nd Place: Evan Koblentz - PDAs: 1973-1993 3rd Place: William Donzelli - Computers in Uniform Special Awards Special Awards are given to exhibits based on various practical and esthetic criteria. These accolades are intended to award exhibits that advance the state of computer collecting and preservation. Best Presentation: Research Curt Vendel - Atari 7800 Best Presentation: Completeness Curt Vendel - Atari 7800 Best Presentation: Display Jeff Armstrong - DEC Rainbow 100 Dual Monitor Setup Best Presentation: Creative Integration with Contemporary Technology Devon McCullough - SOL-20 Dialup to ARPANET Circa 1976 Best Preservation: Original Condition Herbert Eisengruber - Computer Museum of Nova Scotia Best Preservation: Restoration Andrew Molloy - Zeda 580 Integrated Video Computer System Best Preservation: Recreation Bob Armstrong - SBC6120 PDP-8 Clone Best Preservation: Obscurity Vinal Applebee - Before There Were Blinkenlights Best Technology: Analog William Donzelli - Computers in Uniform Best Technology: Non-Electric William Donzelli - Computers in Uniform Best of Show The Best of Show award determines, based on the best overall score achieved, which exhibit deserves to be singled out for extra special recognition. The VCF East 2.0 Best of Show award went to Vince Briel for his Replica 1 Apple-1 clone. Congratulations, Vince! People's Choice Award Finally, the People's Choice Award taps into the pulse of the VCF crowd. Attendees are encouraged to submit a ballot naming their favorite exhibit of the show. The exhibit that attracted the most votes this year was Jeff Armstrong's DEC Rainbow 100 Dual Monitor Setup. I would like to thank and congratulate all VCF East 2.0 exhibitors for contributing to yet another excellent exhibition. Watch out for news about the next VCF East in the summer of 2005! VCF Producer Sellam Ismail on G4TechTV's Screen Savers October 19 ----------------------------------------------------------------- The VCF's Sellam Ismail will be appearing on G4TechTV's "The Screen Savers" program on Tuesday, October 19th. Sellam will be bringing along his PDP-1 front panel replica to demonstrate playing SpaceWar! as simulated on a laptop running SIMH. This marks Sellam's fourth appearance on The Screen Savers. Check your local listings for air times. Subscribe to the Computer Collector E-mail Newsletter ----------------------------------------------------- The Computer Collector E-mail Newsletter published by Evan Koblentz (formerly the ClassicTech E-Letter published by Michael Nadeau) is a weekly newsletter that discusses the computer collecting hobby. The newsletter is brief yet informative and always interesting. The VCF's Sellam Ismail is a regular contributing member of the Newsletter staff and wholeheartedly recommends it for folks interested in the hobby of collecting vintage computers. To subscribe, visit the Computer Collector website, which also includes helpful directories listing upcoming events as well as places in the real world you can visit to see old computers. http://news.computercollector.com The CCEN is currently undertaking a subscription drive. Whoever ends up as subscriber #600 will automatically win a copy of Michael Nadeau's "Collectible Microcomputers". Might that be you? Subscribe and find out! That wraps it up for this issue of the VCF Gazette! Until next time... Best regards, Sellam Ismail Producer Vintage Computer Festival http://www.vintage.org/ The Vintage Computer Festival is a celebration of computers and their history. The VCF Gazette goes out to anyone who subscribed to the VCF mailing list, and is intended to keep those interested in the VCF informed of the latest VCF events and happenings. The VCF Gazette is guaranteed to be published in a somewhat irregular manner, though we will try to maintain a quarterly schedule. If you would like to be removed from the VCF mailing list, and therefore not receive any more issues of the VCF Gazette, visit the following web page: http://www.vintage.org/remove.php ;) -- 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, 11 months

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PDP-11 boards to be saved from scrapper

by wmaddox＠pacbell.net

The current high bidder on this item, jandbyates, appears to be a gold scrapper. Any PDP-11 fans want to bid on these? I have no connection with the seller, I just don't want to see a scrapper get these boards, even though I have no use for them. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1479&item=5723156389… --Bill

21 years, 11 months

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Paul Allen announces Albuquerque Microcomputer Gallery

by jfoust＠threedee.com

* Microcomputer Exhibit to Open in Microsoft Birthplace http://www.space.com/businesstechnology/technology/microcomputer_museum_041… Microsoft co-founder, Paul G. Allen, announced today plans for a museum exhibit in Albuquerque, NM , which will document the history and impact of the microcomputer. The 3,000-square-foot Microcomputer Gallery is scheduled to open to the public in 2006 and will be housed in the New Mexico Museum of Natural History and Science. - John

21 years, 11 months

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20,046 page doc archive still available

by ross＠ingram.co.nz

Hello John I came across your post via Google. I had an Ohio Scientific C1P and C4P about 25 years ago. I have been trying to find manuals for both these units just for the sake of nostalgia. Have you any idea if anyone has posted these manuals apart >from in the 20046 page document you mention? If not I would be grateful if you could point me towards the secret link you mentioned. Kind Regards - Ross

21 years, 11 months

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DEC T11 data sheet?

by Pres＠macro-inc.com

Anyone have a data sheets for the DEC T11 processor chip? Or a link to one? Thanks, Ed K.

21 years, 11 months

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WooHoo... Big Iron at auction IBM S/390

by tponsford＠theriver.com

Hey all you big iron collectors!! Tomorrow at the UA auction they got a Big S/390 with all the auxiliary cabinets. I fortunatly had my digital camera with me this time,s as the University FORGOT to post the computer on it's online site. This means that a lot of would-be purchasers may not be there. I suspect that the 390 and the associated cabinets will go cheap, but who knows. The University may decide to postpone the auction for the 390 til next time. If they don't..Here's your chance. You can bid by phone. But you'll need to set up an account with them before the auction. Auction starts at 8:30 MT (tucson Az.). I expect that they will get to the s/390 at aroun 11:00 or 12:00 noon. I have some photos I took this morning. They are not labeled. I've written down more info and I'm looking it up as we speak. The 390 is circa 1999/2000 and is in #2 condition which is next to new. Several books/binders w documentation. Hey don't these things run linux on a virtual partition?? Anyway, see for yourself. (the brown lines on the machines is tape. It's too keep people from opening the cabs and removing componenets during inspection day (today) http://personal.riverusers.com/~dponsford/UAauction.html Auction web page: http://pacs.web.arizona.edu/surplus/public/auction-sale_home.html Tom --- Please do not read this sig. If you have read this far, please unread back to the beginning.

21 years, 11 months

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Emulation....

by david＠dynamicconcepts.us

Thinking about the recent posts on "Emulating right down to the Iron"..and I had an idea, that I first thought was completely crazy, but am now thinking that it may be only slightly nuts.... People have successfully modeled some of the processors using current technology such as FPGA's. What if someone used and FPGA or similar and produced a processor capable of running the instruction set of a specific machine, but was compatible at the PIN (and other HW considerations) of a x86. A standard motherboard (obviously with a completely vustom BIOS) and standard hardware could then be used. Depending on what type of HAL was implemented their might be the need for some custom drivers at the emulated OS level. But this would provide a platform that used current hardware (easy, available, cheap) without any additional layers.... As I said, I thought I was completly wacko when the idea first came up, but I wanted to get the lists thoughts....

21 years, 11 months

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spec sheet for a 8308

by dwight.elvey＠amd.com

>From: "Pete Turnbull" <pete(a)dunnington.u-net.com> > >On Oct 1 2004, 11:06, Dwight K. Elvey wrote: >> Hi >> I'm looking for a spec sheet on a 8308. I think it >> is part of the older National Semi series DM8308. >> It might be a 8303 ( the schematic is not to clear ). >> I think it is an inverting 8 channel bus tranceiver. >> I need information on which way the drivers go with >> the direction control and is the enable true or false. > >I think you mean DP8303 / DP8308? Both of these are 20-pin DIL 8-bit >bidirectional transceivers; the DP8303 is inverting and the DP8308 is >non-inverting. In both cases, the A port is pins 1-8, and the >corresponding B port pins are 19-12. > >On the DP8303 (and DP8304, which is the non-invering equivalent) Chip >Disable (active high to disable) is pin 9; pin 11 is Transmit/-Receive; >"transmit" (pin 11 high) means A is input and B is output. > >On the DP8308 (and DP8307, the inverting equivalent), pin 9 is >-Transmit and 11 is -Receive (both active low). > >On all of them, port A can sink up to 16mA and port B can sink up to >48mA. > >The DP7303/4/7/8 devices are extended-temperature range versions of >DP8303/4/7/8. Hi Pete It looks like you are correct, they should be DP8303's. Does anyone have any of these or know where I can get any? Thanks Dwight

21 years, 11 months

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ot++ laptop buying advice please

by ron.hudson＠sbcglobal.net

I need a really cheap place to get a laptop. It should be reasonably powerful (The end user will be surfing and email and light word processing) it must have: A non-windmodem modem (possible a pccard), ethernet (again possibly a pc-card) a cd Writer. And the cheaper the better. The end user is borrowing one of my machines and they are really hooked on the whole "work at home" be an "affiliate" buy my ebook and sell it yourself thing. I would rather they had their *own* machine that they could fill with spyware and junk. ;^) I don't want to hassle with ebay. Thanks. If this is too off-topic you can reply off list to: ron.hudson at sbcglobal dot net

21 years, 11 months

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Floppy disks wanted - 5" hard sector

by dwight.elvey＠amd.com

Hi I've made a punch setup that seems to work. I used the frame of an old SA400 ( broken before I got it ). I can punch the needed holes but it is not a high speed production system. I figure for my time, a box of ten for $10 is a lot cheaper than my rates. Still, for my uses, punching them myself has personal satisfaction. If anyone is interested, I do have bootstrapping routines for H8/H89 Heathkit machines so a person can get their system up and running without a preformatted disk ( it does need the 10 extra holes ). One can the download HDOS through the serial port onto a fresh disk. The Poly 8813/10 also use hard sectored disk. I expect to do some work on a similar routines for these. Right now, I can transfer files but it does take a boot disk to get started. I have a couple of Northstar machines but haven't had the time to play with them. They are on my list. Dwight >From: "Joe R." <rigdonj(a)cfl.rr.com> > > They used to show up regularly on E-bay. One guy was selling them for >the software on them. IIRC I bought a set of ten for less than $10. > > Joe > >At 11:31 AM 10/3/04 -0400, you wrote: >> >>Anyone know of a source of some inexpensive 5.25" hard sector diskettes (as >>used in North Star and some Heathkit computers - 10 sectors)? >>

21 years, 11 months

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DECtape and LINCtape

by aek＠spies.com

LINCtape has the polarity of the clock track inverted, and the block types are different from DECtape. I'm sure Lyle can give you more details.. I'm heading out of town for a few days right now.

21 years, 11 months

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Bah! HP Terminal smarter n' me

by ron.hudson＠sbcglobal.net

Anyone know much about HP terminals (700/96) I have this beast hooked to a serial port on my linux box.. I am using a "serial laplink" cable and a null modem adapter (that should be two null modems together) I have agetty lines in my /etc/inittab s1:2345:respawn:/sbin/agetty -L 9600,19200 ttyS1 vt100 s2:2345:respawn:/sbin/agetty -L 9600,19200 ttyS2 vt100 The terminal is set at 91200 and set to emulate a vt100.. I am not sure however if the terminal is "online" or not Where is that switched? (does online or local make any sense for a glass tty with no local storage)

21 years, 11 months

5
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Floppy disks wanted - 5" hard sector

by Watzman＠neo.rr.com

Anyone know of a source of some inexpensive 5.25" hard sector diskettes (as used in North Star and some Heathkit computers - 10 sectors)?

21 years, 11 months

3
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DecTape & LincTape.

by david＠dynamicconcepts.us

All, I am tring to remember, what are the differences between DecTape and LincTape..... TIA.

21 years, 11 months

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Bob Supnik lurking? (simh PDP11 question)

by ron.hudson＠sbcglobal.net

Bob or Anyone.... In simh if I have an att rl0 diskdrive1 And the simulator is running, If I rename diskdrive1 to something and rename something-else to diskdrive1 does the simulator care? will it start accessing the new disk image or continue to access the old? I know this would have implications for the simulated OS (rsts on a pdp11) but will it cause problems for the simulator? Likewise what about the paper tape punch/reader and lineprinter files? Could I use links? $>ln rsts-rl-system.dsk diskdrive1 Then to change disk packs I $>ln rsts-rl-othersystem diskdrive1

21 years, 11 months

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Ot. Website check

by jrice54＠vzavenue.net

Can a few people check out my site for rendering problems and report back to me. I'm not anywhere near finished but I need to know if everything appears to be working. It looks ok to me with Mozilla but I haven't installed Opera and don't use IE. My one box with Safari installed is still in the storage facility. Thanks,, James -- www.blackcube.org The Texas State Home for Wayward and Orphaned Computers

21 years, 11 months

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CARA hamfest report

by wh.sudbrink＠verizon.net

I don't bother with many hamfests any more, as most seem to be turning into intel x86 clone shows. However, one hamfest that has never disappointed me is the CARA (Columbia (Maryland) Amateur Radio Association) hamfest held each October. This year's fest was no exception. It was pretty small this year due (probably) to the threatening rain, but I was still able to score the following for under $15 total (including $6 to get in): Bugtrap Model 2074 Logic comparator with manual and clips/probes. _Logic_Circuits_and_Microcomputer_Systems_ copyright 1980 by Wiatrawski and House intel 8-Bit Embedded Controller Handbook (1989) and (best for last) ADM-3A interactive display terminal operator's handbook (first printing, copyright 1975) ADM-3A Maintenance Manual in an LSI Data Products vinyl 3-ring binder. Full schematics, troubleshooting section, keyswitch repair/maintenance, etc. A good Saturday morning's haul, I think. Bill

21 years, 11 months

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HP5245 Info

by carlo＠kbnet.co.uk

Hi Have stumbled over the messages about HP5245, I have one, its been working for years but now its developed some faults some of the digits are stuck on a number.Like to have some basic diagrams before I start fault finding, diagram of the two display boards decade counter boards would be nice. Kind Regards Carlo Kowcun (Italy)

21 years, 11 months

2
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MFM Drive replacement

by Pres＠macro-inc.com

Anyone know of any solid state drive replacements for MFM hard drives? I know Wilson is making MFM->SCSI drive. And other companies make SMD and RK05 SSD plug ins. Anyone heard of a MFM SSD? If not, might be a fun project. Thanks, Ed K.

21 years, 11 months

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Anyone interested in this Sun Sparc systems?

by vcf＠siconic.com

I've got a couple Aries Research Marix SS tower boxes that I'm getting real close to scrapping out for lack of any reason to keep them. These are Sparc servers basically. One's got 512MB RAM. The other has some unknown amount across 16 30-pin SIMMs (perhaps 4MB to 16MB each?) I've then got two similarly-styled tower chasses from the same manufacturer that have 5 Micropolis 1926 (2GB) drives each. See photos here: http://www.siconic.com/computers/Aries/ I'm hoping there's someone that would want the parts out of these...perhaps the memory or drives or CPU. Or maybe you're interested in the entire box. Who knows. I'd just hate to scrap them before I offered the stuff up to the list. I would like a nominal bit of cash to make it worth my time to pack and ship. It's all available, in whole or in part. First come first served. If there are no takers within a couple days, these will be ripped apart and everything will go off to the vultures. Act fast! Contact me off-list of course. -- 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, 11 months

2
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Can anyone id this? Western Union TWX V Diagnostic Control Panel

by rigdonj＠cfl.rr.com

Anyone know what this is? I bought two of them today. They're aluminium boxes about 9" tall, 4" wide and 1 1/2" thick. They have a four digit LED display and a hex keypad on the front. On the LH side is a rotory switch to set the BAUD rate (110 to 9600). Also a pushbutton labeled INS and a jack labeled "remote INS". (Any guesses what INS means?) On the RH side is a reset switch and a DB-25F connector. On the bottom of the front panel are four rocker switches labeled "Diag" and "1", "2" and "3" with "TEST" above the 1, 2 and 3 switches. On the back is a label that says "Western Union Information Systems", "TWX V Diagnostic Control Panel", "Type Number 900012/IDP 01 995922", the unit serial number and "Made in USA". There's a place for the date but, unfortunately, it's blank. On the top is a 50 pin ribbon cable header. When I got these they had a ribbon cable connecting both units together but I doubt that they're supposed to be used that way. Note that there's no OFF/ON switch or power connector on thse. They must get their power from the unit under test. BTW TWX means teletypewriter exchange service but no idea what TWX V means. Based on this and the Western Union logo I'm guessing/hoping that these are made for testing teletypes. Joe

21 years, 11 months

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Anyone selling 5.25" blank Apple or Atari disks?

by pbmain＠wideopenwest.com

Looking for about 10 5.25" blank Apple II or Atari 800 compatible diskettes...just need something to play around with... Pete pbmain(a)wideopenwest.com

21 years, 11 months

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LF Heathkit H8 original software

by nancy＠randyray.com

Dave, I saw your note on some forum asking about Heathkit H8 software. I, too, have an old H8. I built it in the mid 70s. Unfortunately I didn't keep any of the old software on cassette. Did you find someone that would get you copies of any of the apps? I'd be interested in paying for copies as I am trying to get mine back up and running. I am especially interested in Basic. Please reply to me personal email randy(a)randyray.com Thanks, Randy

21 years, 11 months

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Cromemco SpaceWar object code

by aek＠spies.com

> Does anyone have a functional copy of the Cromemco SpaceWar program http://www.bitsavers.org/bits/Cromemco/paperTapes/

21 years, 11 months

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Morrow S-100 MPZ80 CPU board ROM needed

by r.stek＠snet.net

I am so close to having my Morrow Decision I working again, but.... I have 3 MPZ80 CPU cards, and I can boot up a 1 drive floppy based CP/M system but I really want to get a HD system working (BTW, thank you Allison for the ST-506's). However all three monitor ROMs are version 4.47 which is set up for the Micronix OS they also sold. Apparently there is some code in there which sets a different sector size for Micronix rather than for CP/M, and possibly has other differences as well. I am not interersted in running Micronix (even though I seem to have the complete (?) C source code for it). When I boot from a CP/M floppy, I can use the Morrow HD format program to format the HD, but it always gives me sector time out errors for each head during the verify phase (presumably because of whatever is in the 4.47 ROM). What I need is a copy of version 3.7 (it's on a 2732). Anyone out there with ROM I can copy or can copy one for me? Thanks. Bob Stek Saver of Lost Sols

21 years, 11 months

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Double postings

by Pres＠macro-inc.com

Just noted that my reply to Dave Corbins post on PDP8 emails, went to the list AND to Dave Corbin separately. Some emails I get from this list have Reply To: "cctalk" . Others include Reply To: "cctalk" and person who posted it also. ??? Ed K.

21 years, 11 months

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FI: PDP/EBAY/EMAIL

by Pres＠macro-inc.com

At 04:21 PM 10/2/2004, you wrote: >The following exchange has just taken place regarding the PDP-8 items just >listed on e-bay. Though some people here might be interested.. I saw the same thing but noted that it had no front panel. What are you complaining about? He's done serious collectors a favor. The guy thinks he'll get more money that way. Hey, that's the American way, though I think he's wrong. If you want to put an 8 together, the parts will likely go for a lot less than a whole box, even sans the front panel. I bought a stack of 8A boards last week for $100. The last PDP8 that sold on eBay was over $1300 IIRC. Putting a whole (even without front panel) PDP8 on eBay would make a real bidding war and drive the price way up. You'd have a lot of casual lunk heads bidding on it. With pieces, only someone knowledgeable will be interested in bidding. The problem with parting it out is if you get 2 of the 3 parts needed, and then some nitwit bids the world on the 3rd piece you're SOL. I think that happened to someone on the list recently bidding on some PDP8 parts. Should make things interesting. :-) Ed K.

21 years, 11 months

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Cromemco SpaceWar object code

by pete＠dunnington.u-net.com

On Oct 2 2004, 13:47, Richard A. Cini wrote: > Does anyone have a functional copy of the Cromemco SpaceWar program > that was in the Dazzler manual? I have a PDF of the manual, which has a hex > dump of it, but OCRing it has proven to been a royal pain. I stha t PDF available anywhere? I have a Dazzler but no manual. > Ideally what I need is a straight binary file. It would be about > 3.3k long. If someone can assist with this, I'd appreciate it. If OCR is a pain (and I can well believe that) why not just retype it? Even though it's a bit tedious, and would need careful checking, 3.3K isn't too bad, and it's probably quicker than fixing a poor OCR. I know; I was the person who re-typed the 60K of the original TREK73 from some pretty awful photocopies, when no machine-readable version could be found. I set it up on a copy stand beside my machine, and typed half-hour or one-hour stints in the evenings when I had nothing much better to do, for a couple of weeks. 3.3K wouldn't take long, even if it is hex. -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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FI: PDP/EBAY/EMAIL

by dvcorbin＠optonline.net

The following exchange has just taken place regarding the PDP-8 items just listed on e-bay. Though some people here might be interested.. ----- Original Message ----- From: dvcorbin(a)optonline.net <blocked::mailto:dvcorbin@optonline.net> To: burgyman41(a)bellsouth.net <blocked::mailto:burgyman41@bellsouth.net> Sent: Saturday, October 02, 2004 8:30 AM Subject: Question for item #5128002772 - DEC PDP-8 COMPUTER CHASSIS/RACK with POWER SUPPLY It appears that you are "parting out" some model of CNC machine (possibly a punch). I am really questioning why the computer (PDP-8) was not listed as a single item (which typically can be placed back into operation). When the items are split like this it often indicates that there was something seriously worng with the unit as a whole, this MAY indicate that many of the partes themselves are damaged. Any information or history gladly appreciated. _____ From: Bill [mailto:burgyman41@bellsouth.net] Sent: Saturday, October 02, 2004 10:15 AM To: dvcorbin(a)optonline.net Subject: Re: Question for item #5128002772 - DEC PDP-8 COMPUTER CHASSIS/RACK with POWER SUPPLY Yes, this particular PDP-8 was removed from a CNC machine tool. A K&T horizontal machining center to be exact. It had been purchased by my customer, a machine shop, from one of his customers, a large company that was downsizing. Some where in the transition from one to the other I am told, part of the system software and most of the documentation was lost. After some period of frustration at not being able to use the machine they contacted us to quote on retrofiting it with a conventional CNC control. We removed the PDP-8 and replaced it with a Fagor model 8050M and set the old computer on a shelf in our warehouse where it sat for about 10 years until I closed the business and must now dispose of many items that I didn't have the heart to throw away. I decided to sell it in three separate groups of parts after observing the selling activity of other DEC items on ebay. Without a front panel my feeling is that it's attraction as a complete computer would be limited. As to someone putting it back in service after all these years, why would anyone want to do that? Hope I answered your concerns, Bill ---------------------------------------------------------------------------- ------------------ Thanks for the response. Believe it or not, there are a significant number of people dedicated to the restoration (and operation) of the older computers, not just DEC/PDP stuff, but old IBM, Honeywell, Hewlett Packard, and all of the rest. There are also a number of musuems that are dedicated to this (their budgets are very limited, but many donations are tax deductable!). I am award that many CNC machines did not have the front panel (although a number that used PDP-8/M's DID!). While the individual parts are usefully as spares and replacements, too many of them end up being turned into "ART" and destroyed from a restoration point of view. Also many of the machines (not so much the PDP-8) required various tweaks to the boards to get them to play together or work in a specific backplane. This is why a complete (or near complete system is much more desirable). I see that you are closing your shop, but I hope you will pass this information on to ANYONE who may have access to old computer and electronic equipment. Feel free to use me as a point of contact, or I can provide the names of collectors pretty much anywhere in the world [including one in Antartica!] Earier this year I was at a convention [Vintage Computer Festival] where one of the original developer of the original developers of the Univac was giving a presentation [he is over 80]. It turns out that hist wife and he were selling their house, and it looked like all of his notebooks, and other documentation from the 1950's thru the 1970's was going to be "dumpstered". Fortunately arrangements were made with a computer musuem in California [the conference was in Boston!] to archive all of this ir-replacable stuff. >From a sellers point of view, there is limited cash value. As I indicated earlier most of the interested parties are either individuals or musuems running on very tight budgets. I do find it intersting that most people understand the collecting and restoration of items such as old cars, but are very suprised to find that there are people interested in vintage computers. Good luck in your sale, I hope this message will provide some valuable information, and you can help prevent other classic hardware [and even more DOCUMENTATION and SOFTWARE] from going to the scrappers, or straight to the dumps. David V. Corbin Sayville, NY 1-632-244-8487 <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> Question about your item <BLOCKED::http://pics.ebaystatic.com/aw/pics/aboutme/v3/ebay_logo_39x18.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> Dear techseller41, Please respond to the question on eBay by clicking the button below. You'll have the option to display your response directly on the listing. <BLOCKED::http://contact.ebay.com/ws/eBayISAPI.dll?RespondToQuestion&iid=512 8002772&qid=253245692&SSPageName=PageRespondToQuestion_Email> Respond Now <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> Item # Item Title Listing end date <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> 5128002772 DEC <BLOCKED::http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5128002772> PDP-8 COMPUTER CHASSIS/RACK with POWER SUPPLY Oct-08-04 <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> Thank you, dvcorbin8ioy <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> Need help calculating shipping cost? Use the <BLOCKED::http://pics.ebaystatic.com/aw/pics/icon/iconCalculator_20x20.gif> Shipping <BLOCKED::http://cgi3.ebay.com/aw-cgi/eBayISAPI.dll?EmitSellerShippingCalcul ator> Calculator. <BLOCKED::http://pics.ebaystatic.com/aw/pics/spacer.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/securityCenter/imgMarketplace_2 25x24.gif> <BLOCKED::http://pics.ebaystatic.com/aw/pics/spacer.gif> Is this message an offer to buy your item directly through email without bidding on and winning the item on eBay? These "off eBay" transactions violate eBay policy and may be unsafe. You can click here to report it. Learn <BLOCKED::http://pages.ebay.com/securitycenter> more about safe trading. <BLOCKED::http://pics.ebaystatic.com/aw/pics/x.gif> _____ eBay treats your personal information with the utmost care, and our Privacy Policy is designed to protect you and your information. eBay will never ask their users for personal information, such as bank account numbers, credit card numbers, pin numbers, passwords, or Social Security numbers in an email. For more information on how to protect your eBay password and your account, please visit User <BLOCKED::http://pages.ebay.com/help/account_protection.html> Account Protection. <BLOCKED::http://pics.ebaystatic.com/aw/pics/spacer.gif> This eBay notice was sent to burgyman41(a)bellsouth.net <BLOCKED::mailto:burgyman41@bellsouth.net> based on your eBay account preferences and in accordance with our Privacy <BLOCKED::http://pages.ebay.com/help/community/png-priv.html> Policy. To change your notification preferences, click <BLOCKED::http://cgi4.ebay.com/ws1/eBayISAPI.dll?OptinLoginShow> here. If you would like to receive this email in text format, click <BLOCKED::http://cgi4.ebay.com/ws1/eBayISAPI.dll?OptinLoginShow> here. <BLOCKED::http://pics.ebaystatic.com/aw/pics/spacer.gif> Copyright C 2004 eBay Inc. All Rights Reserved. Designated trademarks and brands are the property of their respective owners. eBay and the eBay logo are trademarks of eBay Inc.

21 years, 11 months

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Any Convexs user out there ?

by mcwood＠t-online.de

Hi, I just picked up a Convex C220 and wonder who else might have such a beast at home. Unfortunately I'm lacking the documentation and operating system (I think it is was called ConvexOS) but it is still very cool to see that machine. Lots of IPI and SMD drives, heavy duty power supplies. If some could help me with any related Convex material especially any Operating & Maintenance manuals - that would be very nice. Cheers, Marc

21 years, 11 months

1
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Cromemco SpaceWar object code

by rcini＠optonline.net

Hello, all: Does anyone have a functional copy of the Cromemco SpaceWar program that was in the Dazzler manual? I have a PDF of the manual, which has a hex dump of it, but OCRing it has proven to been a royal pain. Ideally what I need is a straight binary file. It would be about 3.3k long. If someone can assist with this, I'd appreciate it. I'm testing some new "hardware" in the Altair32 Emulator. Thanks. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

21 years, 11 months

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Need help in Reno Area today!

by brian＠quarterbyte.com

Hi Folks, I'm helping a friend install an art exhibition at Truckee Meadows Community College in Reno, NV. One of the pieces is run by a 386 computer running MS-DOS, it's been in storage for three years, and its CMOS data is gone. Need to borrow a monochrome monitor and an AT-type keyboard with the DIN rather than PS/2 connector, just for an hour to get it working again (once it's set up it runs without them). As an alternative to the mono monitor, an ISA-bus VGA adapter would be just as good. Is there anyone in the area who could help? Could you email me directly (brian(a)quarterbyte.com)? I'll check email periodically today. Thanks! Brian =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _| _| _| Brian Knittel _| _| _| Quarterbyte Systems, Inc. _| _| _| Tel: 1-510-559-7930 _| _| _| Fax: 1-510-525-6889 _| _| _| Email: brian(a)quarterbyte.com _| _| _| http://www.quarterbyte.com

21 years, 11 months

1
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SIMH and cpuidle

by doc＠mdrconsult.com

Are there any mechanisms to throttle simh's CPU usage? I'd use it a lot more, but frankly my 11/53 is *quieter* than my PC or my G5 are with simh running. Both machines have load-based fans (a _bunch_ of them). They're near-silent at normal loads, but simh jacks CPU usage to 100% even when it's idle. That heats things up and I have a turbine in my lap. Doc

21 years, 11 months

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DEC 6330 & 6300

by jwest＠classiccmp.org

I can't seem to find any pictures on DEC 6330 or DEC 6300 computers via goggling. Anyone have a picture of these beasts? I may have a line on getting one of each.... Jay

21 years, 11 months

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(no subject)

by list＠saracom.com

Hello, A friend gave me his first computer to go in my collection. Its a Challenger C4P. I do have the original manuals etc. And of course my friend for information. What I am looking for however is additional information, websites etc devoted to it. I have the cassette based version. The first question would be details on the floppy disk version. IE can I upgrade mine. If not, sources for programs for the cassette based unit. Also I remember a program to simulate the cassette player by using a PC with a sound card. Any one know if that one? Or should I just make wav files and use media player? For one thing, I would like a terminal emulation program for it. Thanks Max at

21 years, 11 months

4
4
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spec sheet for a 8308

by pete＠dunnington.u-net.com

On Oct 1 2004, 11:06, Dwight K. Elvey wrote: > Hi > I'm looking for a spec sheet on a 8308. I think it > is part of the older National Semi series DM8308. > It might be a 8303 ( the schematic is not to clear ). > I think it is an inverting 8 channel bus tranceiver. > I need information on which way the drivers go with > the direction control and is the enable true or false. I think you mean DP8303 / DP8308? Both of these are 20-pin DIL 8-bit bidirectional transceivers; the DP8303 is inverting and the DP8308 is non-inverting. In both cases, the A port is pins 1-8, and the corresponding B port pins are 19-12. On the DP8303 (and DP8304, which is the non-invering equivalent) Chip Disable (active high to disable) is pin 9; pin 11 is Transmit/-Receive; "transmit" (pin 11 high) means A is input and B is output. On the DP8308 (and DP8307, the inverting equivalent), pin 9 is -Transmit and 11 is -Receive (both active low). On all of them, port A can sink up to 16mA and port B can sink up to 48mA. The DP7303/4/7/8 devices are extended-temperature range versions of DP8303/4/7/8. -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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Shameless self promotion... was Poly88 on ebay

by dwight.elvey＠amd.com

>From: "Bryan Blackburn" <oldcomp(a)cox.net> > > >>>I may be whacked in the head, but what did the Poly 88 innovate other >>>than cuteness? Or maybe that doesn't matter because it is has an s-100 buss? >> >> Actually it did provide a turning point in micro processors. >> It was the first S-100 to have only a power and reset button on the front. >> It had a monitor ROM built in that provided a display of memory and >> registers, using the memory mapped video. The ROM also had the >> tape read code built in. They'd have put the tape write code in > >->snip<- > >So. What I hear you saying, is that they were the first to copy the >digital group...! :) Is it S-100? When did they first come out? Dwight > >-Bryan > >

21 years, 11 months

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DEC 6330 & 6300

by jbmcb＠hotmail.com

>From: Doc Shipley <doc(a)mdrconsult.com> >Reply-To: "General Discussion: On-Topic and Off-Topic >Posts"<cctalk(a)classiccmp.org> >To: General(a)mdrconsult.com, "Discussion(a)mdrconsult.com":On-Topic and >Off-Topic Posts<cctalk(a)classiccmp.org> >Subject: Re: DEC 6330 & 6300 >Date: Fri, 01 Oct 2004 19:51:06 -0500 <SNIP> > > Rackmount VAX6000 cabinet: > >http://www.docsbox.net/garage/tn/VAX6k.jpg.html > >http://www.docsbox.net/garage/tn/VAX6k_2.jpg.html > Damn, I guess I'll *have* to get a truck, now. :) _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

21 years, 11 months

1
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Free NewDOS/80 (Apparat, Inc) manual - no software.

by tosteve＠yahoo.com

Hello, I have what appears to be an original loose-leaf manual for NewDOS/80 (Apparat, Inc) for the TRS-80 model I computer system. Manual only, no software. Yours for shipping costs only - maybe $5.00. Steve. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail

21 years, 11 months

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bitsavers owner?

by julesrichardsonuk＠yahoo.co.uk

Right, I've gone and forgotten who looks after bitsavers.org - I know it's one of you, anyone fancy owning up? :-) cheers, Jules -- I'm sorry for all the times I intentionally ducked underneath the sneeze guard at a salad bar and sneezed on everything until I couldn't sneeze any more. I have a problem.

21 years, 11 months

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HP3000/922, disk cabinet at Mich. St. U. Salvage

by drb＠msu.edu

There was an HP3000/922 at MSU Salvage today, with what looked like a disk cabinet (similar size and shape to the processor cabinet) and some cables. No idea whether any of it works. No apparent software or manuals. I may grab it on Friday if it's still there. If it didn't sell today it should be safe until then, as that's the next public sale day. If anyone wants this thing, let me know. I have little enough time and spare cubic volume in my life without adopting machines I know nothing about. Someone who already loves this family would make it a better home. De

21 years, 11 months

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Shameless self promotion... was Poly88 on ebay

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj(a)cfl.rr.com> > >At 04:14 PM 9/30/04 -0700, you wrote: >>>From: "Bryan Blackburn" <oldcomp(a)cox.net> >>---snip--- >>> >>>I may be whacked in the head, but what did the Poly 88 innovate other >>>than cuteness? Or maybe that doesn't matter because it is has an s-100 buss? >> >>Hi >> Actually it did provide a turning point in micro processors. >>It was the first S-100 to have only a power and reset button on the front. >>It had a monitor ROM built in that provided a display of memory and >>registers, using the memory mapped video. The ROM also had the >>tape read code built in. They'd have put the tape write code in >>it as well but that was all they could squeeze into the 1K EPROM. >>The tape was capable of both Byte format and a high speed ( I forget >>if it was 9600 or 4800 ). To write to the tape, one could enter >>the program through the monitor. Of course, it made sense to save >>that program as your first tape program. > > OK so what's the big deal? Intel had all of these features in their >MDS-800s (and maybe in their earlier Intellecs, I don't know). The MDS was >Multibus but that's no big deal. > > > > The Poly88 had its problems. >>cooling was a big issue. >> I have two of these, fully operational :) > > I think I have NINE MDSs all functional :-) > > Joe > Hi Joe The monitor on the MDS800 isn't as good as the Poly's, it isn't S-100 and it has 8 switches on the front, other than power. Although, only one of these switches it needed to get to the monitor. The display is not memory mapped so you don't get the same richness of information in depth or in speed. Then, the 800 was designed to solve different problems. Dwight

21 years, 11 months

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Shameless self promotion... was Poly88 on ebay

by dwight.elvey＠amd.com

>From: "Bryan Blackburn" <oldcomp(a)cox.net> ---snip--- > >I may be whacked in the head, but what did the Poly 88 innovate other >than cuteness? Or maybe that doesn't matter because it is has an s-100 buss? Hi Actually it did provide a turning point in micro processors. It was the first S-100 to have only a power and reset button on the front. It had a monitor ROM built in that provided a display of memory and registers, using the memory mapped video. The ROM also had the tape read code built in. They'd have put the tape write code in it as well but that was all they could squeeze into the 1K EPROM. The tape was capable of both Byte format and a high speed ( I forget if it was 9600 or 4800 ). To write to the tape, one could enter the program through the monitor. Of course, it made sense to save that program as your first tape program. The Poly88 had its problems. cooling was a big issue. I have two of these, fully operational :) Dwight

21 years, 11 months

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Kenbak-1 Was: Poly88 on ebay

by David.Kane＠aph.gov.au

> wanted a TTL based computer, I'm thinking about > building the Educ-8, http://www.ljw.me.uk/educ8/ , a > similar TTL based machine described in an electronics > australia article in 1975. Amazingly, they still sell > the boards for it, or at least in theory they do, I've I managed to collect the original magazines with the Educ-8 articles as well as scans of the articles, and although the boards are available I am not sure they would all that useful. The Educ-8 was designed around both 74 and 8 series TTLs. I did some cross referencing, but could not locate datasheets on all the 8 series ICs used, so I am not 100% certain that there are pin equivalent 74 series ICs for all. This might mean a board reroute. David

21 years, 11 months

2
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Harvard vs. vonNeuman

by dwight.elvey＠amd.com

>From: "ben franchuk" <bfranchuk(a)jetnet.ab.ca> > >Peter C. Wallace wrote: >> Isn't self modifying code pretty much deprecated these days (aside from >> trampolines and such) > > >So what is a trampoline? >> Peter Wallace > > > I have yet to see a good use for self-modifying code. Other than >subroutines and interupts placing data into a code segement the only >self modifying code I have seen was for the 8088. >Ben. > Hi It is interesting that different people have different ideas as to what self modifying code is. Actually, the ability to load code and execute from a mass storage is self modifying. Code that uses a variable value for a table to look up execution addresses is self modifying. Most every multitasking system I've seen are self modifying. I think what people consider dangerous self modifying is when the program alters the actual execution instructions in memory and then executes them. It is strange that this form gets such a large amount of emotional negative response while other types are hardly considered issues. No matter how the code is written, one can make bad code in most any form. One can also make good code as well. There is no reason why self modifying code should be any more dangerous than any other type of coding if done with a complete understanding of what the limitations are. What is the difference between replacing one or two instructions and then executing them or replacing an overlay and then executing that overlay? Other than size, both are doing the same thing. One is forbidden while the other is normal operation. Dwight

21 years, 11 months

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University of Michigan Property Depot report

by ddl-cctech＠danlan.com

|Also, a full-length ISA card with a bunch |of NCR chips, and the back half covered with a RF shield. The only connector |was a F-type screw connector (CATV style) which leads me to belive it's an |old TV tuner card, but I don't think NCR is known for multimedia chipsets, |and the RF shielded area was at the back of the card instead of right next |to the connector. Any ideas? Broadband Ethernet? Dan Lanciani ddl(a)danlan.*com

21 years, 11 months

1
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AS/400 9404 and TWINAX questions...

by cbmpet2001＠yahoo.de

First: I did not forget the terminals I announced some time ago. Actually I?m looking for a cheap way to ship them to the fellows who were interested. As I am quite busy at work at the moment, this will take some time ? please excuse that. My main question(s) ? I hope it?s ?on-topic?: I obtained a nice IBM AS/400 9404 System. It was cheap and is in nice condition, so I could not resist. It consists of two huge enclosurements. One (I?ll call it the left one) is loaded with 3 or 4 nice and big harddisks. The second one contains the logic-boards, three harddisks, an 8 inch diskette and a tape drive. Both boxes have some batteries built in. The two boxes are interconnected with 3 cables. In the right box some options(?) are installed: Fist slot (left): Nr. 2700 Second slot (from the upper position to the lowest): ??? (looks like the following ), 6151, 6136. Underneath the small modules I can read 2615. 3rd slot: 3120 4th slot: 2533 It?d be nice if you cold help me out a bit with these numbers. I could not really find out what these are. Could somebody please identify them? I also got a 3197 terminal, twinax expansion boxes (2x 4 ports) and some cables with the machine. My first question: How do I connect the terminal correctly? I assume it plugs into port 0 for system console. Are the cables critical, could I use cat 5? I have not enough connectors I?d be happy if anyone could supply some cheap connectors (male) and Infos about the twinax cabling sheme, especially how the pinout of the connectors and how I have to connect the console terminal I have no docs for the machine, but it should be loaded with an OS. When I turn it on it seems to IPL. Is there any Info available online? I think, I need some information about the OS too (at the back of the machine I can read ?Release Level 2? on a sticker. Somebody told me the OS-License is tied to the machine? If so, could someone provide me some backup copies of the system disks? I know most people would throw these machines out, but I want to keep it as it is one of the earlier AS/400 systems. I could make pictures if anyone needs it. Thank you for any information, Best regards, Wolfgang ===== ==================================================== Ing. Wolfgang Eichberger cell.: +43-664-240-65-92 http://www.eichberger.org email: wolfgang(a)eichberger.org ---------------------------------------------------- Gruentalerstr. 24 - 4020 Linz ? AUSTRIA ==================================================== ___________________________________________________________ Gesendet von Yahoo! Mail - Jetzt mit 100MB Speicher kostenlos - Hier anmelden: http://mail.yahoo.de

21 years, 11 months

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VCF 7.0 Lodging Information

by vcf＠siconic.com

For those coming to VCF 7.0 from out of the area, this just in: http://www.vintage.org/2004/main/lodging.php Room rates are $79 per night. RESERVATIONS MUST BE MADE BY OCTOBER 15! All the details and information available at the above URL. Thanks! -- 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, 11 months

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AT&T Gemini Electronic Whiteboard

by kevin.mclintock＠gmail.com

Hello Everyone, I am searching for an AT&T Gemini whiteboard. This forum has proven to be a great place for information on them in the past, so I am hoping that someone out there has one (or knows where I might find one). Thank you! -Kevin

21 years, 11 months

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spec sheet for a 8308

by dwight.elvey＠amd.com

Hi I'm looking for a spec sheet on a 8308. I think it is part of the older National Semi series DM8308. It might be a 8303 ( the schematic is not to clear ). I think it is an inverting 8 channel bus tranceiver. I need information on which way the drivers go with the direction control and is the enable true or false. Of course, a spec sheet would be great. Also, I could use one of these IC's as well but I'm prepared to make one with a couple of 74LS242's. I just need a little more info. Dwight

21 years, 11 months

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SGI stuff...

by sjhill＠realitydiluted.com

Greetings. I saw from an old post back in Aug 21, 2003 that you had a bunch of IRIX CDs and other SGI stuff. Do you still have the media left, the manuals or Pipeline magazines? Thanks. -Steve

21 years, 11 months

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looking for 3 or 4 half-height (5.25") panels - trade?

by GOOI＠oce.nl

Hi, I am looking for 3 or 4 half-height (5,25") front panels, black with white/yellowish border to close some gaps in the front of my H960 racks. I offer a trade of *two* full-height (10.5") panels for *one* 5.25" panel. - Henk , www.pdp-11.nl The Netherlands

21 years, 11 months

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RL02 / RL01 rack mounting rails needed

by wacarder＠usit.net

Does anyone have any spare rack mounting rail sets for a DEC RL02 or RL01 drive? I need two or three sets to mount some of my drives in a rack. Thanks, Ashley

21 years, 11 months

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DEC RQZX1 manual?

by waltje＠pdp11.nl

Hi all, Did anyone ever make manuals for newer DEC boards such as the RQZX1 (M5977) and 11/93 CPU (M8981) available? I cant find any.. :( --f

21 years, 11 months

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+ - * . &apology;

by tomj＠wps.com

re: local syntax rules etc... I'm sorry I was so rude to people in this list, there was no reason for me to be so snippy.

21 years, 11 months

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Poly88 on ebay

by dwight.elvey＠amd.com

Hi I was watching the auction of the Poly88 on ebay. I was astounded that the orange toaster went for 1358USD. I do hope that the person that is buying it realizes that the boards inside are not the orginal Polymorphic boards. Still, it is a nice looking box but that is a little high priced for a power supply and motherboard. Dwight

21 years, 11 months

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NEC Multispeed HD Setup Disk

by bill.hodgson＠solitaireauto.com.au

Hello Rob.. if you are still looking for a genuine NEC MULTISPEED Setup disk, I can send you a copy of mine. Bill Hodgson - Adelaide, South Australia

21 years, 11 months

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memory on e-bay...

by david＠dynamicconcepts.us

Could be handy if.... 1) the price does not go too high... 2) they have not been damaged.... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=3842659608 &rd=1> &category=1247&item=3842659608&rd=1

21 years, 11 months

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ebay id?

by jwest＠classiccmp.org

Would the ebay id "djhamma" be anyone here? Jay West

21 years, 11 months

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