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

Booting a VAXstation 4000 VLC off the hobbyist boot CD-ROM

by KVanMersbergen＠RandMcNally.com

David- It might be the drive itself, I'd try a 1X drive if you have one. -----Original Message----- From: David Betz [mailto:dbetz@xlisper.mv.com] Sent: Wednesday, July 14, 2004 4:00 PM To: On-Topic and Off-Topic Posts Subject: Booting a VAXstation 4000 VLC off the hobbyist boot CD-ROM I have my VAXstation 4000 VLC running to the ">>>" prompt and would like to boot the hobbyist CD-ROM to install VMS on the hard drive but I'm having trouble getting the CD-ROM to boot. If I type 'boot dka400' at the prompt, the CD-ROM spins up and I get the text "-DKA400" displayed on the console but then I get the ">>>" prompt again. Can anyone tell me why that would happen? I'm using a NEC CDR-1910A SCSI CD-ROM drive set to SCSI ID 4. *************************************************************** This E-mail is confidential. It should not be read, copied, disclosed or used by any person other than the intended recipient. Unauthorized use, disclosure or copying by whatever medium is strictly prohibited and may be unlawful. If you have received this E-mail in error, please contact the sender immediately and delete the E-mail from your system. ***************************************************************

21 years, 8 months

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FW: RK05 question

by GOOI＠oce.nl

Hmm. So in your mind experiment you keep the 12 sector pulses and the track pulse, and deliver the track pulse with 16 sector pulses to the hardware of the drive logic. Using the 12 sector pulses will probably produce a more stable 16 sector pulse signal as the PLL is kept in lock in shorter intervals. But what would the PLL circuit do when it gets 12 sector pulses (that is fine) *_and_* at some odd moment the extra track pulse ...? I was thinking of *only* the track pulse and get the PLL locked on that pulse only, assuming that the stability of the PLL is sufficient for one revolution. From the N divider is would be easy to get the sector pulses. So, I cover all the sector slits on the hub of the disk. But as you said (I did not know that part and did not check on an RK05 pack I have at home), the track pulse is not halfway two sectors. Some separate binary comparator could check the N divider outputs and then you simply set a binary number to the comparator when it should give the track pulse. - Henk. > -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Paul Koning > Sent: dinsdag 13 juli 2004 16:38 > To: cctalk(a)classiccmp.org > Subject: RE: FW: RK05 question > > > >>>>> "Gooijen" == Gooijen H <Gooijen> writes: > > Gooijen> Isn't the track index pulse == the one pulse that is fed to > Gooijen> the PLL phase comparator? That pulse is used to synchronize > Gooijen> the oscillator that must run at 12 (or 16) times the > Gooijen> frequency between 2 sector pulses to generate the (missing) > Gooijen> sector pulses .... or am I mistaken here? > > No, what I meant is to derive the 16x sector pulses from the 12x > sector pulses, keeping the track pulse as it is. But either would be > possible. > > The track slot is close to the first sector slot (it's not halfway > between sectors). What I don't remember is how close, or whether the > sector slot spacing around the track index is the same as elsewhere, > or different. That would affect the PLL design a lot... > > To do this right would require measuring the angular positions of all > the slots on a 12 sector and 16 sector pack, to see just what the > pattern looks like and how to transform one to the other. > > paul

21 years, 8 months

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Anyone have/know of Persci drives, parts

by Watzman＠neo.rr.com

I need some Persci 8" drives (model 270 or 277) and/or parts to repair them for some systems. The part that I need most is the very large circuit board on the right side of the drive. Anyone know of a source? [I'm sure that there are thousands of them in various landfills, but that won't help me ......] Thanks, Barry Watzman Watzman(a)neo.rr.com

21 years, 8 months

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Anybody here work on HP 7905/7920 disk drives?

by dwight.elvey＠amd.com

Hi What is the best way to clean this self-destructing foam. I've tried a couple of things without luck. Dwight >From: "Joe R." <rigdonj(a)cfl.rr.com> > >At 11:57 AM 7/22/04 -0500, you wrote: >>I'd be quite interested in these, as I'm sure some other people would be >>too. Any chance we could get pictures? > > They wouldn't do any good. There's pieces of green foam stuck all over >the parts. > > Joe > > >> >>Jay >>----- Original Message ----- >>From: "Joe R." <rigdonj(a)cfl.rr.com> >>To: <cctalk(a)classiccmp.org> >>Cc: <dancohoe(a)oxford.net> >>Sent: Thursday, July 22, 2004 10:39 AM >>Subject: Anybody here work on HP 7905/7920 disk drives? >> >> >>> Went scrounging yesterday and found a small plastic box of what looks >>> like HP disk drive test/alignment accessories. Parts include 07905-60049, >>> 07905-60039, 5061-1386, 07920-60030 and 07920-62421. Anybody need this >>> stuff? The box is filled with that old self-disintegrating foam so the >>> stuff will need to be cleaned up but it looks like it's in very good >>> condition (the box is in rough shape). >>> >>> Joe >>> >> >> >

21 years, 8 months

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cctalk Digest, Vol 11, Issue 42

by india_50＠yahoo.com

hi guys, great info on the rounds here. btw i happend to find an old comp, i fig must be atleast 15-20yrs old. i fig that it has a NECV30 (similar to 8088) i guess. no idea if its still in workin cond. i tried checkin, the powersupply's alright, and the power reaches the processor and the other chips. the bios chip is on board (andi doubt that's the trouble maker) can somebody tellme where ican find some info on manual bootstrapping it. the monoc monitor that came with it does not work, so how do i proceed. i hv my hols now and would like to work on it. tu ___________________________________________________________ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself http://uk.messenger.yahoo.com

21 years, 8 months

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AVAILABLE: PDP11/23 (and /73) SYSTEMS

by waltje＠pdp11.nl

Hi All, It looks like I might have some PDP-11/23 (and/or 73) systems available soon. Given their weight, pickup is preferred, as I will NOT drag em to the post office. These are complete system, not just the CPU's. If interested, drop me a line off-list. Location is SAN GABRIEL, CA, which is just south of Los Angeles. There's also two LA120 DECwriter III's. 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, 8 months

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Anybody here work on HP 7905/7920 disk drives?

by rigdonj＠cfl.rr.com

Went scrounging yesterday and found a small plastic box of what looks like HP disk drive test/alignment accessories. Parts include 07905-60049, 07905-60039, 5061-1386, 07920-60030 and 07920-62421. Anybody need this stuff? The box is filled with that old self-disintegrating foam so the stuff will need to be cleaned up but it looks like it's in very good condition (the box is in rough shape). Joe

21 years, 8 months

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Commodore Pet ROM trouble... EPROM Substitutes...

by pete＠dunnington.u-net.com

On Jul 22, 13:09, wolfgang(a)eichberger.org wrote: > 2732 2532 > EPROM -> SOCKET > Pin(s) Pin(s) > 1-17 -> 1-17 > 18 (E) -> 20 (PD/PGM) > 19(A10)-> 19 (A10) > 20(GVpp)> 21 (Vpp) > 21(A11)-> 18 (A11) > 22-24 -> 22-24 That should certainly work for reading. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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PDP11/73 power-up codes

by runtime＠wzrd.com

I found EK-KDJ1A-UG-001 "KDJ11-A CPU Module User's Guide," which might help, because unless my memory fails me, the KDJ = 11/73. I didn't immediately find power-up codes in it -- probably because something like MXV11-B2 or other ROM set issues the codes. If I can find an MXV11 doc, I'll post a message. I used to have one. Contact me if you want the KDJ11 manual. runtime(a)wzrd.com DM

21 years, 8 months

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Vaian 620?

by rigdonj＠cfl.rr.com

Does anybody around still have one of these that works? Joe

21 years, 8 months

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Apple IIe ROM

by f.heite＠hccnet.nl

>From: Mike Kenzie <kenziem(a)sympatico.ca> >Subject: Re: Apple IIe ROM >Does anyone know of a reference that might list ALL the ROMs produced for the IIe? No list - but if you happen to find an Apple IIe with the text " Apple //f " on the startup screen, you might have found my old Apple - for which my dealer made me a personalized ROM. Besides that small gadget, the code that overwrites some memory locations when the reset key is hit, was nopped in the new ROM. Regards, Freek Heite.

21 years, 8 months

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Motherboards

by BUFFYBRON＠aol.com

Hi Chris I will pay all shipping costs to the UK for the motherboards, please advise if this is possible. Brgds Steve

21 years, 8 months

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front panel toggle & paddle switches?

by rigdonj＠cfl.rr.com

Does anyone have a list of the part numbers and brands of the various toggle and paddle switches used on the various computers? Or better yet, close up pictures of the switches? I find lots of surplus equipment with nice toggle and paddle switches and I keep wondering if they're the same as those used on any of the collectible computers and if I should pull the switches and save them. Joe

21 years, 8 months

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Motorola Powerstack 603e

by stacie＠computerspectrum.com

Hi! Just wondering if you have anything like this still lying around. Let me know when you can, Stacie Creed 502-585-8866

21 years, 8 months

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Concrete Computers art exhibit

by vcf＠siconic.com

Christine Finn writes: ---------- Forwarded message ---------- Date: Tue, 20 Jul 2004 15:27:33 +0100 From: C.A.Finn(a)Bradford.ac.uk Subject: concrete computers etc I am installing an art exhibit in London in early September with the artist who heard me on Start the Week. www.richarducker.com -concrete computers. Idea is that we show the work in a soon-to-be-demolished 1970s office block (his American wife's office actually) to play up the tension of time passing and technological transformation! The place will be felled days after we leave it. Anyway, while Richard is showing his computers as fetish objects, I am doing a couple of displays on subject of computers and their culture as archaeological artifacts. I have already asked Woody Lewis, who used to work at IBM, Apple, Cisco and daytrade, for ephemera to show, and also Mike Cassidy at the SJMN. Just wondered if there is anything you'd like to contribute - or at least some leaflets to display? It's all pretty conceptual...I'll work with material office stuff is left in the venue, but basically display the bits and pieces as proper museum objects, with tags and handlist. I wil undertake to return anything that comes my way. Dr.Christine A.Finn FSA Writer-in-Residence, J.B.Priestley Library & Hon.Research Fellow, Dept. of Archaeological Sciences, University of Bradford, Bradford, W.Yorks BD7 1DP (+44) 01274 233398 (fax) (+44) 07980 913795 (cellphone) --- So if anyone would like to contribute to this off-beat exhibit, or would like more information, please contact Christine directly at <C.A.Finn(a)Bradford.ac.uk>. -- 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, 8 months

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Document request

by Watzman＠neo.rr.com

It turns out that about 3 years after they went out of business, a 12-volume "Encyclopedia" of Processor Technology data was published by Stan Sokolow called the "Encyclopedia Processor Technica", aka "EPT". [There is some question as to whether volume 12 was ever actually published.] I'm trying to find this and get it converted to PDF files. Bob Stek has loaned me volume 9 to scan (covers the Helios Disk System), which will soon be on Howard's site (http://www.hartetechnologies.com/manuals/). Does anyone have any of the other volumes? This is a rare document, there were probably no more than a couple of hundred printed, if even that many, and that was over 20 years ago. If you have this and are willing to loan it out for scanning, or scan it yourself (each volume is about 300+ pages), please contact me (Watzman(a)neo.rr.com). Still looking for a number of other manuals also, plus anything that isn't in the library (these below have specific requests): * AB Digital Design Labs B810 RAM * CCS 2820 CPU Board Manual * CCS 2-Serial/2-Parallel Card Manual * Cromemco [2716] 32K Bytesaver * Cromemco 64KZ Manual * DIGITEX Systems Manuals. * DUAL Systems Manuals not listed. * Ithaca Audio 1010 CPU Board * NNC ("No-Name Computers") Manuals * OSM Computer Corp Z80 CPU "CPU/64K" Board * S. D. Sales Expando-Ram I, III Manuals (any/all versions) * Zeus System Manuals Thanks, Barry Watzman

21 years, 8 months

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RZ25-E in a VAXstation 4000 vlc?

by dbetz＠xlisper.mv.com

I have a VAXstation 4000 vlc without an internal hard disk and a spare RZ25-E drive. I had thought I could install the drive in the vlc but it seems from inspection that the vlc needs a lower profile drive. What drives are compatible with the vlc? If it won't work as an internal drive, I guess I can install the RZ25-E in an external SCSI enclosure. Should that work with the vlc?

21 years, 8 months

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spring clearout. (ok, so I'm late..)

by classiccmp.org＠irrelevant.fsnet.co.uk

Hi all, In an effort to make some room, I have the following items available to good homes. All are located in Salford, UK. Collection is preferred, although I can arrange carriage if necessary (but most are of little value, heavy, or both!!) All the following are FREE to good home (although a contribution would be appreciated) Impact printers: Epson RX-100+ printer - powers up, printed two lines of self test before beeping. probably just needs a good clean and some grease. Epson LX-1050 printer. - powers up and prints self test. Inkjet printers: (assume all these need new ink carts!) Epson stylus color 460 printer - untested Epson stylus color 800 printer - untested but believed OK Epson C20UX printer - believed faulty Olivetti JP192 printer - untested but believed OK - complete with cartridge holder and driver diskettes! Monitors: About 4-5 Various 14" monitors. - may have some slight faults. Panasonic TR120TIL monochrome composite video monitor. - OK. Eizo Flexoscan 9070S - untested - 16" ??? - multiple inputs (CGA/EGA, dip switch no.colours, ttl/analogue switch, BNC separate inputs) Terminals: Wyse WY-30+ green screen terminal. - complete with keyboard. Works fine. Computers: Several PC clone AT, Pentium 1 class base units - various states of completeness. Amstrad PCW8256 word processor / CPM computer - complete, with keyboard, printer and diskette! - believed working prior to spending overnight outside. not tested since. Mitac 3030D laptop computer - no power supply, untested. Compaq SLT/286 laptop - no power supply, keyboard is missing, untested. IBM XT model 8160. - untested. Base unit only. These I would definitely like a contribution for: Motorola MVME187 based computer. powerstack? This machine has been unused since ~1994 or so. It was only ever powered up for a few MONTHS, then sat unused under a desk ever since. I have never powered it up, as I can't find a console cable. Torch Hard Disc 68000 computer. BBC micro + 68000 co-processor + hard disc + monitor in a massive steel case. This WAS working a couple of years ago, but ceased to do so after being moved about. It may be something simple, I don't know .. pics at http://www.irrelevant.com/pics/Torch004.jpg to 009 from when it did work! More items to come in due course ... [I also have some other old 486 machines, HP deskjet printers and Wyse Terminals (at least one is a WY-120) hidden at the back of the outhouse, which I could liberate if anybody was really really REALLY desperate for one :-) They will appear here eventually, but for the moment they are not in the way!] Please reply off-list by placing 'robert' before the @ in the email address I wrote to this list from. Cheers! Rob

21 years, 8 months

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RF74 Disk Drives

by guygolden＠excite.com

Do you have any RF74 disk drives left? _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!

21 years, 8 months

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Commodore Pet ROM trouble... EPROM Substitutes...

by wolfgang＠eichberger.org

Sorry, me again. Mentioned TMS2532 Eproms are one of these Unobtainiums here. Looking at the Pinouts I have in my databooks there are little (minor?) Differences to the standard 2732's (besides the different Program Supply Voltage). I couldn't find much ressources online, but would it work if I made a small adapter like "illustrated" below... 2732 2532 EPROM -> SOCKET Pin(s) Pin(s) 1-17 -> 1-17 18 (E) -> 20 (PD/PGM) 19(A10)-> 19 (A10) 20(GVpp)> 21 (Vpp) 21(A11)-> 18 (A11) 22-24 -> 22-24 Please correct me, if I'm completely wrong and trying to do something impossible. 2732's would be easy to obtain, and I have some prommer-schematics and software handy. So it would be cool if I could use them. 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 ====================================================

21 years, 8 months

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spring clearout. (ok, so I'm late..)

by e.huininga＠sozawe.groningen.nl

>>> Jules Richardson <julesrichardsonuk(a)yahoo.co.uk> 07/22 12:04 >>> > Torch Hard Disc 68000 computer. > BBC micro + 68000 co-processor + hard disc + monitor in a massive steel case. > This WAS working a couple of years ago, but ceased to do so after being > moved about. It may be something simple, I don't know .. I've yet to find anyone who has a running one :-) The ones I've seen typically had BASF hard drives, which don't seem to have stood the test of time like other ST506 units. Yours is a little unusual in having the 68k board rather than the Z80 though. (I've got schematics for the 68k boards by the way, as well as the SASI controller fitted in these machines) I'm very interested in a copy of the 68000 and SASI boards. Any chance you can mail me a copy? Cheers, Eelco

21 years, 8 months

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Honeywell DATAmatic 1000

by esharpe＠cox.net

Honeywell DATAmatic 1000 http://www.smecc.org/datamatic_1000_vol_1_the_assembly_program.htm New document on site showing in all of its glory the tape drive that reads 31 channel 3 inch wide tape. need to talk to people that had experience on this system, and of course needs more parts and books and photos for the site as well as the inhouse museum display. Thanks Ed Sharpe archivist for SMECC Please check our web site at http://www.smecc.org to see other engineering fields, communications and computation stuff we buy, and by all means when in Arizona drop in and see us. address: coury house / smecc 5802 w palmaire ave glendale az 85301

21 years, 8 months

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Miscellaneous available

by donm＠cts.com

Trying to create enough space in my garage to get my car back in. The following items are available for the price of shipping: HP Type Director User's Guide C2501-C90901 HP Professional Printer Deskjet 02276-90004 HP LaserJet Printer Technical Reference Manual 02686-90912 HP LaserJet & LaserJet+ Printers Operator's Reference Manual 02686-90914 HP PCLPak User's Guide 33406-90901 HP 92286A Courier 1 LaserJet Printer Font Cartridge HP 92285 D Paper Cassette (original box) HP 33412AD TmsRmn/Helv Base Set (Roman-8) Soft Font Disks LaserJet PLUS/500 PLUS, LaserJet series II, LaserJet 2000 IQ Engineering Super Cartridge 1 for HP LaserJet/PLUS/500PLUS LaserJet series II/2000 and fully Compatibles There will be more later. - don

21 years, 8 months

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AD - FS: VAX-11 Assembly Language Programming Book

by gsutton9503＠wavecable.com

Since I don't yet have my Geekworks page set up yet, I'm going ahead and posting this here to the list. If there's any VAX enthusiasts here, I have a book for sale that may be of interest: Programming In Assembly Language - VAX-11. I'm not sure what would be a reasonable price to ask for this book, so I'll entertain the cop-out of a reasonable offer plus shipping. For postage calculations, the total package weight will be 3 pounds / 2 ounces, and will be shipped from ZIP code 98383 Using this info, postage can be calculated here: USPS Domestic Postage Calculator http://postcalc.usps.gov/ USPS International Postage Calculator http://ircalc.usps.gov/weight.asp?Contents=1 Pictures of the book are here: http://webpages.charter.net/scarletdown/Geekworks/GW-VAX-ASM-0.JPG http://webpages.charter.net/scarletdown/Geekworks/GW-VAX-ASM-1.JPG http://webpages.charter.net/scarletdown/Geekworks/GW-VAX-ASM-2.JPG http://webpages.charter.net/scarletdown/Geekworks/GW-VAX-ASM-3.JPG http://webpages.charter.net/scarletdown/Geekworks/GW-VAX-ASM-4.JPG http://webpages.charter.net/scarletdown/Geekworks/GW-VAX-ASM-5.JPG

21 years, 8 months

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WARNING: RANTING COMPUTER NUT...

by vp＠cs.drexel.edu

"David V. Corbin" <dvcorbin(a)optonline.net> wrote: > As shown by the above quote, there is a strong anti "PeeCee" bias by many > here.[...] but this forum centers on variance, if everything is the same, what is the point of discussing/preserving it. The differences/peculiarities/innovations exhibited by many of the old machines make them so fascinating. If you give me a 20 year old PC, it will take me no time to setup it up with DOS and even networking. But what would be the point, I can do the same thing in a VMware window on my Linux workstation. The neat thing about the old machines is that it takes for ever to set them up and this is what's so intriguing about them. I remember a posting (not in this forum), about a guy who got an old IBM 360 mainframe working. He said that once it was working there wasn't much to do with it. > IF the computer industry had remained with a large number of completely > different hardware/software environments which required trained operators > for even the most basic operations, then computing would not have become a > household commodity. > [...] > Standardization of both hardware and software HAD TO HAPPEN, if computers > were to become the commodity they are today. I am afraid that computing standardised too early causing everybody to get locked into a technology that is too clunky. Microsoft's "innovation" essentially boils down to two things: a) adding useless junk to their already bloated platforms, and b) adding "essential" applications (e.g. Web, or audio) to their base platform so as to dictate the standards and eliminate competition. This strategy, although excellent for Microsoft, is to the detriment of everybody else. I have PCs running windows because I must, but I don't need the latest and greatest Microsoft offering, I am running Windows NT4.0 with Office 95 (which btw will soon be covered by the 10 year boundary :-). I will soon have to move to something more recent mainly because vendors do not support Windows NT, so I will not have the drivers to run Windows NT on my new hardware. PC hardware *is* a commodity, but never be fooled into thinking that Windows software is also a commodity. **vp

21 years, 8 months

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Commodore SX64 probs...

by julesrichardsonuk＠yahoo.co.uk

I've got a pair of non-working Commodore SX64's here. One machine powers up, but the floppy drive light remains lit and I can hear the drive spinning continuously, and there's a 50% grey pattern filling the screen (i.e. pixels look to be alternating white/black). Actually, there's also short run of pixels middle-bottom of the screen which aren't illuminated at all. Pressing reset has no effect. Pressing caps-lock does result in the caps-lock light illuminating, but I don't know if that's a simple circuit hardwired to the key and doesn't go via the CPU... The second machine is totally dead - no activity whatsoever. There's a *very faint* humming noise from the monitor area, typical of a display that's at least getting power though - but on the CPU side of things no chips seem to be getting remotely warm, suggesting that there's no +5V. Before I start digging deeper, does the fault with the first machine sound familiar, and are there any common PSU faults which affect these systems? Plus, anyone have schematics they could scan? Be nice to get one of them going. One keyboard is damaged (plus I only have the one original keyboard cable), so it's only really viable to have one running, but I'd like to get to the bottom of what's up with both of them... cheers, Jules

21 years, 8 months

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cctalk Digest, Vol 10, Issue 74

by tradde＠excite.com

Crisis Computer in San Jose has the equipment to write CE packs. They aren't going to be cheap. I'm guessing $300 to $500. They are probably the only place in the world left that has the gear to do this. Realigning 2315 heads isn't something you want to do if you don't absolutlely HAVE to, since you run the risk of making the packs that you have unreadable, if they were written on drives that are off spec. ------------------- I believe I have to consider this. I have no packs with any data on them that I need. They were all just data packs with automotive parts in inventory and such. I cleaned a pack and loaded it into my RK05 drive zero and it would not pass the read/write test. I don't remember what happened when I tried to use drive 1. I believe it failed but in a different manner. I thought if at least one drive was working I'd be Ok for awhile. I am not sure if I want to spend $300-$500 on trying to get a CE pack that may not help me if my drive is failing for some other reason than alignment. _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!

21 years, 8 months

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Commodore Pet ROM trouble...

by wolfgang＠eichberger.org

Thanks Pete for your fast answer. Yes it is a BASIC 4 Machine with these 4116-4 RAMs. You wrote the correct substitute for the ROM chips are Texas Instruments TMS2532 or equivalent. Is this right for all the chips I will list below? I hope the TMS2532 are easy to purchase here in Austria. Looking through my little library I found the datasheet (at least a good start) but I couldn't find a refence for substitutes - do there exist any? Are the TMS2532 fully Pin-compatible with the MOS ones? And my last question: Do I need anything special to write these chips? I'd put together a little circuit to hook on my Pc's Parallel-Port (this would be the easiest way for me). I'm already googling for information, but would be very glad of some links to schematics and software. 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 ====================================================

21 years, 8 months

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Commodore Pet ROM trouble...

by pete＠dunnington.u-net.com

On Jul 21, 7:55, wolfgang(a)eichberger.org wrote: > a couple of days ago my Pet 2001N (the 2000 Model without > the cricklet-keys) gave up :(. > Could somebode > please provide me some Info, what Eproms I could use as > replacement for the original Commodore ones (Basic 4)? If it's BASIC 4 and dynamic RAM chips, it should be 4K ROM chips, and the EPROM equivalent is Texas Instruments TMS2532 or equivalent. Note that this is not the same as the more common Intel type 2732. > I'm > also a bit confused what image I should use (see > http://www.funet.fi/pub/cbm/firmware/computers/pet/index.html)... It depends on exactly what type of PET you have. But I'm not sure there's a whole set there, for the later PETs. I *think* you need: kernal-4.901465-22.bin basic-4-b000.901465-23.bin basic-4-c000.901465-20.bin basic-4-d000.901465-21.bin and possibly one other that I don't see (901465-29 or equivalent). I can't remember what's in the E000-EFFF space. The best thing to do is look at the ROMs you have, see what the numbers are, and try to match them. As far as I know, you can't mix parts of sets. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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Smalltalk Software

by swtpc6800＠comcast.net

The Smalltalk software has been taken. Michael Holley swtpc6800 at comcast.net www.swtpc.com/mholley ----- Original Message ----- From: Michael Holley To: cctalk at classiccmp.org Sent: Tuesday, July 20, 2004 9:01 PM Subject: Smalltalk Software I have a Smalltalk software package that is available for the cost of shipping. This is Digitalk Smalltalk/V Windows 2.0. I purchased it in Aug 1994 (10 year rule) for a course I took. I have the complete package: manuals, disks, and box. Email me Michael Holley swtpc6800 at comcast.net www.swtpc.com/mholley

21 years, 8 months

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Commodore Pet ROM trouble...

by wolfgang＠eichberger.org

Hi, a couple of days ago my Pet 2001N (the 2000 Model without the cricklet-keys) gave up :(. See http://www.portcommodore.com/commodore/pet/petfaq/models.html for reference. It's the 2nd machine from top, equipped with 32k RAM. When trying to boot it puts random characters on screen. As far as I found out this _should_ be a ROM-Problem (could be RAM too, but I hope it's ROM as I ran a Ram-Test successfully before the Pet died). I would like to try replacement ROMs before I have to use one of these replacement solutions plugging a little board into the CPU socket and providing it's own ROM and RAM. Could somebode please provide me some Info, what Eproms I could use as replacement for the original Commodore ones (Basic 4)? I'm also a bit confused what image I should use (see http://www.funet.fi/pub/cbm/firmware/computers/pet/index.html)... As you see, I have a lot of questions. Please excuse my horrible english. I'd be habby about every hint, trick etc... Best regards, Wolfgang Eichberger PS: It'd be great too, if somebody could provide me burnt roms as my only eprom-burner is for C=64. ==================================================== Ing. Wolfgang Eichberger cell.: +43-664-240-65-92 http://www.eichberger.org email: wolfgang(a)eichberger.org ---------------------------------------------------- Gruentalerstr. 24 - 4020 Linz ? AUSTRIA ====================================================

21 years, 8 months

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Smalltalk Software

by swtpc6800＠comcast.net

I have a Smalltalk software package that is available for the cost of shipping. This is Digitalk Smalltalk/V Windows 2.0. I purchased it in Aug 1994 (10 year rule) for a course I took. I have the complete package: manuals, disks, and box. Email me Michael Holley swtpc6800 at comcast.net www.swtpc.com/mholley

21 years, 8 months

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Early timesharing/BBS systems

by aek＠spies.com

There were probably a lot, but I remember "Call/370", which I think was one of the first commercial ones. == I have an Auerbach report on timesharing services which I'll try to dig up, which gives short company histories for many of the early commercial services. Most of the major computer companies were offering some service by the late 60's. Part of IBM's antitrust settlement with CDC was that CDC got IBM's service bureau operation. GE timsharing stuck around for a while. Tymeshare was one of the earliest independents, bootstrapping themselves and fixing tons of bugs in the GENIE code. I also forgot to mention HPs timeshared basic and 3000 systems, also from the very early 70s ( the 3000 being HP's 'real' timesharing machine, so they said)

21 years, 8 months

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Help with Apple2 clone "Orange Peel"

by dave04a＠dunfield.com

At 20:42 18/07/2004 +0100, you wrote: >> Btw, do you (or anyone) have the pinout for 4564 DRAM's? I'm wondering >> if they are in backwards (as noted previously, someone "worked" on this >> unit) - 16 pins, showing +5 on pin 8 and Gnd on pin 16 - backward to > >That is the conventioanl pinout for 64K DRAMs (like the 4164). The old >3-rail 16K ones (4116, etc) had -5V on pin 1, +12V on pin 8, +5V on pin >9 and ground on pin 16 (this is burnt into my brain). > >I don't think your RAM is in backwards. Certainly don't turn it round yet! > >-tony Hi Tony, Thanks - I hadn't "turned them around" as I wanted to be sure before doing anything that could cause more damage than may or may-not have already occured. I did recall that some 5v DRAM's had "weird" pinouts. Looks like the machine is zeroing RAM (causes a screenfull of '@' on apple display), and then getting "lost" before it ever makes it to the disk ROM (or at least doesn't turn on the drive motors) - Bad RAM would have explained that nicely (bad stack) - I'll do some more conventional debugging to see what it is accessing and see where that takes me. 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, 8 months

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Dragon 64 fixing...

by pete＠dunnington.u-net.com

On Jul 19, 15:29, Jules Richardson wrote: > > Finally found the five minutes to see if my Dragon 64 works. It doesn't. I have a Dragon 32,. working last time I checked. If you're coming here this week, you can borrow it for comparison testing if you like. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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VCM Stuff

by marvin＠rain.org

Just a quick note to say I am still in the process of getting rid of my excess "treasures" :). They are listed on VCM at http://marketplace.vintage.org/. I'll be putting stuff on for the rest of this week at least, so it might be useful to check the site occassionally ... or frequently :). The stuff I am putting up is mostly for sale, and not for auction.

21 years, 8 months

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Modern Electronics (was Re: List charter mods & headcount... ;

by dwight.elvey＠amd.com

>From: "der Mouse" <mouse(a)rodents.montreal.qc.ca> > >>> Again, I'm thinking in terms of vacuum tubes, and I can't see how >>> losing the knowledge of how they worked is going to affect the >>> future, or even the present for that matter. >> I'm guessing that there is at least one piece of equipment in your >> house that relies on a vacuum tube to opperate that is not some sort >> of display device. > >Aside from legacy electronics (I have some pre-transistor-era equipment >lying around), for which transistor versions exist, I can't think of >any. The only thing I'm not sure of is the microwave oven - does the >microwave-generation-thingy depend on vacuum? Hi You see, knowledge already lost. Yes, a magnetron has a vacuum in it. It has a filament and a plate ( with cavities in it ). While the principles of these things can be found in books, much of the mechanical and physical methods used to create these things is lost. Partly because of the fact that manufactures don't tell all and partly because no one is dealing with these kinds of things. While it is claimed that the information is in books, there are some feel things that rarely seem to make it into these books. Can anyone tell me what controls the gain of a vacuum tube ( other than someone that actually worked with these )? Can anyone tell me how the grids must be placed for an electrometer preamp tube and why? While we don't need these kinds of things today, the knowledge of what makes these things work is still quite valuable. This understanding can keep us from making mistakes with other related problems. I can't say that these specific things that I've mentioned will be the most important things to remember but these are the types of tidbits that make the difference when looking into new problem areas of the future. Those that understand these things will always be in demand. Those that think they can ignore these kinds of things will wonder why things are beyond understanding. This goes for the entire range of things. You can't understand how to think about things without actually thinking about things. Dwight

21 years, 8 months

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Broken list reenable mechanisms

by mouse＠Rodents.Montreal.QC.CA

I'm sorry to have to bother the whole list with this. I already wrote to cctalk-owner and got no response whatever as far as I can tell; I figured I'd let myself try the list, once, in the hope someone is watching there but not at the -owner address. It seems my subscription has been "disabled due to excessive bounces". The mail saying so includes a token that I can supposedly send back to reenable things, but it doesn't work, probably because the list software (a) waited ten days after disabling before telling me anything and (b) didn't generate a newly-valid token after waiting. The last rejection (not bounce, no matter what the message thinks - I don't accept-and-bounce except under very unusual circumstances) was July 3rd (not the July 6th claimed by the message, unless later attempts came through a different host), and I got no notification until July 13th. I replied immediately and got told the token was invalid (with a note that they're good for only three days). I sent the whole mess off to cctalk-owner. Just now, a week later, I got a second notice of disablement. It included _the very same token_, despite it now being a week older. (It still doesn't work.) Today's notice of disablement and the response to my reenablement attempt are quoted below, after my signature. Does anyone know what's wrong here and whom I need to nudge to get it fixed? As I said, I've already tried cctalk-owner. (Obviously, I won't see on-list replies here; direct, or at least copy to me, would be needed for me to get it.) I can dig up copies of last week's notice and response too, if desired. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B ---------------- Notice of disablement > From cctalk-bounces(a)classiccmp.org Tue Jul 20 09:45:01 2004 > Return-Path: <cctalk-bounces(a)classiccmp.org> > Received: from localhost (localhost [[UNIX: localhost]]) > by Sparkle.Rodents.Montreal.QC.CA (8.8.8/8.8.8) id JAA10201 > for mouse; Tue, 20 Jul 2004 09:45:01 -0400 (EDT) > Received: from huey.classiccmp.org (huey.classiccmp.org [209.145.140.36]) by Sparkle.Rodents.Montreal.QC.CA via TCP with SMTP id "MVtBZN.GTXL.Mnd"; 20 Jul 2004 09:44:59 -0400 (EDT, 13:44:59 GMT) > Received: from huey.classiccmp.org (localhost [127.0.0.1]) > by huey.classiccmp.org (8.12.8p1/8.12.8) with ESMTP id i6KE03bY051097 > for <mouse(a)rodents.montreal.qc.ca>; Tue, 20 Jul 2004 09:00:04 -0500 (CDT) > (envelope-from cctalk-bounces(a)classiccmp.org) > MIME-Version: 1.0 > Content-Type: text/plain; charset="us-ascii" > Content-Transfer-Encoding: 7bit > From: cctalk-request(a)classiccmp.org > To: mouse(a)rodents.montreal.qc.ca > Subject: confirm 93199cd740a4a110d65b18d1aea766bc9f292eaa > Message-ID: <mailman.0.1090332000.51096.cctalk(a)classiccmp.org> > Date: Tue, 20 Jul 2004 09:00:00 -0500 > Precedence: bulk > X-BeenThere: cctalk(a)classiccmp.org > X-Mailman-Version: 2.1.4 > List-Id: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk.classiccmp.org> > X-List-Administrivia: yes > Sender: cctalk-bounces(a)classiccmp.org > Errors-To: cctalk-bounces(a)classiccmp.org > > Your membership in the mailing list cctalk has been disabled due to > excessive bounces The last bounce received from you was dated > 06-Jul-2004. You will not get any more messages from this list until > you re-enable your membership. You will receive 1 more reminders like > this before your membership in the list is deleted. > > To re-enable your membership, you can simply respond to this message > (leaving the Subject: line intact), or visit the confirmation page at > > http://www.classiccmp.org/mailman/confirm/cctalk/93199cd740a4a110d65b18d1ae… > > > You can also visit your membership page at > > http://www.classiccmp.org/mailman/options/cctalk/mouse%40rodents.montreal.q… > > > On your membership page, you can change various delivery options such > as your email address and whether you get digests or not. As a > reminder, your membership password is > > ibegav > > If you have any questions or problems, you can contact the list owner > at > > cctalk-owner(a)classiccmp.org > ---------------- Reenablement failure > From cctalk-bounces(a)classiccmp.org Tue Jul 20 12:00:17 2004 > Return-Path: <cctalk-bounces(a)classiccmp.org> > Received: from localhost (localhost [[UNIX: localhost]]) > by Sparkle.Rodents.Montreal.QC.CA (8.8.8/8.8.8) id MAA10831 > for mouse; Tue, 20 Jul 2004 12:00:16 -0400 (EDT) > From: cctalk-bounces(a)classiccmp.org > Received: from huey.classiccmp.org (huey.classiccmp.org [209.145.140.36]) by Sparkle.Rodents.Montreal.QC.CA via TCP with SMTP id "MVtHQK.WpFS.NWZ"; 20 Jul 2004 12:00:15 -0400 (EDT, 16:00:15 GMT) > Received: from huey.classiccmp.org (localhost [127.0.0.1]) > by huey.classiccmp.org (8.12.8p1/8.12.8) with ESMTP id i6KGFJbY051847 > for <mouse(a)rodents.montreal.qc.ca>; Tue, 20 Jul 2004 11:15:19 -0500 (CDT) > (envelope-from cctalk-bounces(a)classiccmp.org) > Subject: The results of your email commands > To: mouse(a)rodents.montreal.qc.ca > MIME-Version: 1.0 > Content-Type: multipart/mixed; boundary="===============1480259870==" > Message-ID: <mailman.47.1090340118.134.cctalk(a)classiccmp.org> > Date: Tue, 20 Jul 2004 11:15:18 -0500 > Precedence: bulk > X-BeenThere: cctalk(a)classiccmp.org > X-Mailman-Version: 2.1.4 > List-Id: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk.classiccmp.org> > X-List-Administrivia: yes > Sender: cctalk-bounces(a)classiccmp.org > Errors-To: cctalk-bounces(a)classiccmp.org > > --===============1480259870== > Content-Type: text/plain; charset="us-ascii" > MIME-Version: 1.0 > Content-Transfer-Encoding: 7bit > > The results of your email command are provided below. Attached is your > original message. > > - Results: > Invalid confirmation string. Note that confirmation strings expire > approximately 3 days after the initial subscription request. If your > confirmation has expired, please try to re-submit your original request or > message. > > - Done. > > > --===============1480259870== > Content-Type: message/rfc822 > MIME-Version: 1.0 > > Received: from Sparkle.Rodents.Montreal.QC.CA > (IDENT:3T62LyXsC2CAW00OL1WHkXx6cGXL9C1WOBnI9DZLNQ5@Sparkle.Rodents.Montreal.QC.CA > [216.46.5.7]) > by huey.classiccmp.org (8.12.8p1/8.12.8) with ESMTP id i6KGFHbY051843 > for <cctalk-request(a)classiccmp.org>; > Tue, 20 Jul 2004 11:15:17 -0500 (CDT) > (envelope-from mouse(a)Sparkle.Rodents.Montreal.QC.CA) > Received: (from mouse@localhost) > by Sparkle.Rodents.Montreal.QC.CA (8.8.8/8.8.8) id LAA10796; > Tue, 20 Jul 2004 11:58:35 -0400 (EDT) > From: der Mouse <mouse(a)Rodents.Montreal.QC.CA> > Message-Id: <200407201558.LAA10796(a)Sparkle.Rodents.Montreal.QC.CA> > Mime-Version: 1.0 > Content-Type: text/plain; charset="iso-8859-1" > Content-Transfer-Encoding: 8bit > X-Erik-Conspiracy: There is no Conspiracy - and if there were I wouldn't be > part of it anyway. > Date: Tue, 20 Jul 2004 11:58:22 -0400 (EDT) > To: cctalk-request(a)classiccmp.org > Subject: Re: confirm 93199cd740a4a110d65b18d1aea766bc9f292eaa > In-Reply-To: <mailman.0.1090332000.51096.cctalk(a)classiccmp.org> > References: <mailman.0.1090332000.51096.cctalk(a)classiccmp.org> > > > --===============1480259870==-- >

21 years, 8 months

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VT52s and VT61 clearance

by wacarder＠usit.net

My new classic computer room is quickly filling up and I need to clear out some space. In my quest to find a working Dec VT52, I have acquired several dead or semi-dead ones that I don't want to spend the time to troubleshoot right now. I also have a VT61 that powers up to a flashing "block style" cursor. I have not attempted to connect it to the PDP-11/34 because I do not have my 11/34 set up for a 20mA connection. If anyone would like a VT52 or the VT61, let me know. I have a minimal amount of money in these ($30 to $50 each) and would be willing to sell them for that price. I've been watching eBay for 6 months and have only seen one of these types of terminals on there. For those of you who aren't familiar with them, they were commonly used on DEC systems (PDP-8 and PDP-11) back in the mid-1970s and later. I have two or three VT52s and the VT61 that I'm wanting to get rid of. The VT61 seems to be quite uncommon. I can't find much about it on Google. It had more features than the VT52 and I think did "full screen" processing, but I'm not sure. Ashley

21 years, 8 months

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cctalk Digest, Vol 11, Issue 29

by mtapley＠swri.edu

At 5:45 -0500 7/16/04, Ed Sharpe wrote: >What is the foulest thing you have ever made a digitalker chip set say?! > >Thanks Ed Sharpe archivist for SMECC Can't resist. This is not really in response to your question, but at least on-topic. In the late '80s, I shared an office with 3 other grad students. One had a Mac SE/30 and was ahead of the rest of us in learning the internet. He got the serial line connection to the building Unix box run into our office, discovered how to ftp files >from internet sites, D/L over serial to the macs, decompress, etc. One night around midnight (when the rest of us were asleep), he discovered a site with a bunch of sound clips from movies, and software to substitute the clips for system beep, startup chime, etc. He went to work, and got his box all set up the way he wanted. Next morning, I came in long before he was up, and fired up his machine to do something on it. Instead of <Beeeeep!> it said "My GOD! It's full of *STARS*! <opening strains of Also Sprach Zarathustra>". Oh, verrry nice. I explored the new directory, discovering eventually clips from "Alien" among quite a few others. I *also* discovered the graphical sound-clip editor that came with the package. Hmmm. I set to work. An hour or so later, the owner of the machine walked in, a bit bleary-eyed but looking smugger than anyone I have ever seen before or since. "Hey, guys", he chirped, "I found some new software. Wait'll you see!" Sitting down at his desk, he gave us all another smug look, flipped the switch and leaned back in his chair as the disk spun up. "What?" we said, our best innocent looks plastered across our faces, "a new startup screen or something?" "You'll see..." came the response. The computer finally piped up, "My GOD! It's full of <click> *..SH1T..* <click> <opening strains of Also Sprach Zarathustra>". It turns out Sigourney Weaver's voice (as in Alien), if frequency-shifted down about half an octave, is almost a dead ringer for Keir Dullea's (as in 2001). Mr. Smug's head snapped around in the fastest double-take I've ever seen. "WHAT!" Then realization set in.. "You guys...." He cleaned up the <click>s and kept the startup sound for months, though. -- - Mark 210-522-6025, page 888-733-0967

21 years, 8 months

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Fw: [dragonuser] Help with Dragon *Beta* Main Board

by geoffreythomas＠onetel.net.uk

This appeared on the dragonuser site - looks like a very interesting machine. He's based in Wiltshire but does travel around a bit if anyones able to help with basic faultfinding . By the way Jules - Dragon diagrams are available from the Dragonuser group. Geoff. P.S. Had a good dig around in the front part of the loft but no Nascom yet , although I did find my two Nascom Imp Printers - chassis only , bought a long time after Nascom ceased to exist. ----- Original Message ----- From: "Richard" <richard.harding(a)virgin.net> To: <dragonuser(a)yahoogroups.com> Sent: Sunday, July 11, 2004 1:37 PM Subject: [dragonuser] Help with Dragon *Beta* Main Board Hi all, I have come into possession of a Dragon Data Beta (aka. The ?2500 business machine) prototype main board. The sad news is that appears to be dead. Is there anyone out there who could possibly help in getting this beastie back into life?? (If it ever worked) Serious reverse engineering and electronic skills required! I've had a poke about with an oscilloscope and it is clocking OK and there is life on the data buses. I have uploaded a few pics into the photos section. For those interested it appears to have the following features: ? 256 K RAM ? Twin 6809E's clocked at 1.8Mhz ? Onboard Floppy controller (3.5" Single sided drives) ? Onboard RS232 ? Optical interface ? External Keyboard (no keyboard L ) ? Unkown DIN connector - Mouse? Light Pen?? ? No built in Drag 64 mode! Only an OS-9 boot ROM (ROM dumps available). Simon Hardy is also holding (most of) a Dragon Data Alpha (aka Professional) prototype for me. More info on this in the coming months when we can actually get a power supply attached. BFN Richard www.dragondata.co.uk ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Domains - Claim yours for only $14.70 http://us.click.yahoo.com/Z1wmxD/DREIAA/yQLSAA/16uqlB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dragonuser/ <*> To unsubscribe from this group, send an email to: dragonuser-unsubscribe(a)yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

21 years, 8 months

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Thurlby LA160 Logic analyser

by johnbscot＠btconnect.com

Lee, were you able to get a manual for the la160? I require a copy as well. can you help? Best wishes John

21 years, 8 months

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Early timesharing/BBS systems

by rcini＠optonline.net

Hello, all: I was at VCFe yesterday and I have to say that the speakers and demonstrations were great. Sellam did a fantastic job and where the event was located at the Sun facilities worked out perfectly. One demo that I missed was the ARPANET dial-up simulation which wasn't there when I left at 3:30. Anyway, this demo brings-up an interesting question. What kind of dial-up systems existed in the 70's before consumer-oriented services like CompuServe? I remember the DowJones and CompuServe sign-up packs at RadioShack in maybe 1979 (I joined CIS in 1988. I even remember my ID: 70153,3367). I also remember in high school (around 1983) using a DECwriter to dial into the timesharing computer (at 300 baud; I don't know the host system) at one of the local universities. Just curious. 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, 8 months

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VCF and lisp machines

by aek＠spies.com

He's a former Symbolics employee, and has a MacIvory at home, plus some mutual friends of ours used to have a pair of CADR's in their basement. == Could you ask if they have any load bands on tape?

21 years, 8 months

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What is the foulest thing you have ever made a digitalker chipsetsay?!

by dwight.elvey＠amd.com

Hi When I was at Intel, years ago, Litrtronix just came out with one of those four letter LED display modules. At the time, I had a 8741 in my desk drawer. I decided to make a random four letter word display. Between me and another fellow, we had about 15 or so good ones. Then we got help from this lady that worked as a tech writer. She brought the list to over 50. She calimed it was because she majored in English. I used the minimum of parts. As I recall, the uP used a coil for the frequency reference, powersupply for 5v, the display, a couple of capacitors, the display and the uP. Dwight >From: "Fred Cisin" <cisin(a)xenosoft.com> > >I think that the syllables and phonemes that you would want >would be more like: >KOMM PYOO TURR >I don't remember the special alphabet that Votrax used >for their phonemes. (for example, "hello" was "H38L8^U") > > >On Tue, 20 Jul 2004, Dave Brown wrote: > >> Spell it rite- compewtor? >> > >> > Not foul, but, 20 years ago when I tried, I couldn't get the Votrax >> > to say "computer" instead it would say "compooter", for that >> > spelling. So, how do you have a Votrax type-n-talk say computer? >

21 years, 8 months

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OSI 560Z: DEC PDP-8 clone using 6100 & 6502

by dfnr2＠yahoo.com

Hello, Having recently acquired some 6100's (I know they're lesser than the 6120), I thought I'd try a PDP-8 project (I remember seeing these, but never got to play with one.) Ohio Scientific had a board--the 560Z--which contained a 6100, a 6502, and a Z-80. The 6502 was "microprogrammed" to emulate the PDP-8 IOT codes, and OSI claimed that it was fully compatible. Has anyone played with one of these suckers? How good was the emulation? Does anyone have any info on the schematics of that board, or the 6502 firmware? Or, does anyone have an unused 560Z, working or not, they'd be willing to part with? I'm also aware of the SBC6120; I plan to order one of these soon. Thanks, Dave __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail

21 years, 8 months

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MI Property Depot Report

by jbmcb＠hotmail.com

Went to the U of M property disposition the other day, they had an SGI POWER series rackmount server (4G3XX something) for $1000, and an IBM S/390 Paralell Generation 4 mainframe with transaction processors (two racks of them) for $1500. I'd pick it up in a heartbeat if I had any way of lugging the beast back to Detroit. They also had a few Sparc 20's for $25, some Sony video editing equipment, a ton of DLT and CD-ROM autoloaders for fairly cheap, and a bunch of those Sparc IPX sized Sun hard drive cases for $10 (With HD's) I picked up a handful of PCI audio/SCSI/ethernet cards for $2 each, a Sony WebTV, and a couple of Cisco EISA FDDI cards to expand my tangled nest of network standards run through my home. Cheers! _________________________________________________________________ Planning a family vacation? Check out the MSN Family Travel guide! http://dollar.msn.com

21 years, 8 months

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DARPA Grand Challenge Conference

by marvin＠rain.org

Anyone else going to the DARPA Grand Challenge Conference on Saturday, August 14th? Aside from the fact that a number of lightweights (including CMU Robotics) entered last year and are presumed to enter again this year, I think it would be totally cool to have a robotic vehicle powered by classic computers :)! A ton of information if you use Google, but the main site is: http://www.grandchallenge.org/ p.s. - The site doesn't work with Netscape 4.73 but works fine with (ugh) IE.

21 years, 8 months

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Computer history -- visiting the UK

by wmaddox＠pacbell.net

I will be leaving at the end of the week for a couple of weeks in the UK, mostly London and surroundings, but with a few days planned in Manchester and York. I am planning to visit Bletchley Park and the Babbage exhibit at the London Science Museum. I have heard that the Manchester Baby replica at the Manchester Museum of Science and Industry is run weekly (or was at one time). I couldn't find any mention of it on the museum's website. Does anyone know the current status and schedule? Any pointers to other exhibits or locations that are a must-see? --Bill

21 years, 8 months

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Processor Technology Software Wanted

by Watzman＠neo.rr.com

Does anybody, by any chance, have a copy of the processor technology "Simu-cisor" program? It is a program for testing a Persci drive that exactly simulated the Persci factory drive exerciser hardware using a PT Helios disk controller. It was distributed on audio cassette tape, not disk, and it's tape name was "SIMU". It was only a dealer/service center item, it was not normally distributed to end-users. If you have this, please contact me (Watzman(a)neo.rr.com). Thanks, Barry Watzman

21 years, 8 months

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