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

by tpeters＠mixcom.com

I saw a Radio Shack printer- typical black and silver/gray color scheme- at the WARAC swap today. Didn't get a close look at it due to sharp elbows in the vicinity. I think the guy was asking $20 for it. What I could see, looked like it was almost new condition. *WARAC: West Allis Radio Amateur's Club. Annual swap is 2nd Saturday in January at the Waukesha (WI) county expo center. ----- 124. [Philosophy] Reisner's Rule of Conceptual Inertia: If you think big enough, you'll never have to do it. --... ...-- -.. . -. ----. --.- --.- -... tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio) "HEY YOU" (loud shouting) WEB: http://www.mixcom.com/tpeters 43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531

16 years, 7 months

1
0
0 0

emulating an Apple II+ in an FPGA

by brianlanning＠gmail.com

I noticed that there's an article in the december circuit cellar that talks about emulating an Apple II+ in an FPGA. It was an interesting article, although I only understood about 20% of it. As a software guy though, the hardware "code" has me interested. Maybe this would be an easier and less time-consuming way for me to learn about hardware. brian

16 years, 7 months

5
8
0 0

Looking for Altair 680 monitor ROM image (or other simple 6800 software)

by derschjo＠mail.msu.edu

Decided to dust off an old software project -- at one point I was working on a Tektronix 4051 emulator, a machine based on the Motorola 6800 CPU. I've coded up a simple 6800 emulation & disassembler but I'm lacking some simple 6800 code to test out its accuracy on "real" code. I'd like to put it through its paces on a simple piece of hardware before tackling the (mostly) undocumented quirks of the 4051. (It's much easier to debug a hardware emulation when you're confident the CPU emulation isn't the culprit...) I thought the Altair 680 would be a good starting point but I can't for the life of me find any dumps of the monitor/VTL ROMs on the 'net. Anyone have any leads for these or other 680 software? Thanks, Josh

16 years, 7 months

4
6
0 0

Cleaning up: Apple II stuff (and some TRS-80 docs) to give away

by tshoppa＠wmata.com

Joachim writes: > Finally there is an unknown board, obviously a Apple II clone, but has > both a 6502 and Z80 on it. Strangely, no ROMs (except for char rom?) > but I have a unpopulated ROM card that may belong to it. Some > corrosion on the underside, it probably doesn't work anymore. Still > all chips are socketed, would be a good place to pull from. (The > other two are assumed to work, but haven't been switched on for many > years.) A Basis 108 maybe? It was a German clone. I think there was a very late (meaning mid-80's) Far-East clone that looked similar to the VTech Laser 128 but also had a Z80 in it. Funny, isn't it? Franklin clones the II, VTech clones the Franklin, and then somebody clones the VTech :-) Tim.

16 years, 7 months

1
0
0 0

Cleaning up: Apple II stuff (and some TRS-80 docs) to give away

by joachim.thiemann＠gmail.com

Ok, I've been sitting on this stuff for a while now, it was supposed to go to someone in upstate New York, but I haven't heard from him for a while. I need to get rid of it to make room, so if someone wants to take it, it's free to go. This stuff is in Montreal. Pictures in http://www.tsp.ece.mcgill.ca/~jthiem/classiccmp/ First is a German Apple IIe, came with a family that immigrated to Canada in the 80's. Has a serial card, a Microsoft Softcard (CP/M and possibly 80-col), a printing buffer and floppy. Comes with 2 drives, bunch of original Apple floppies, documentation (including two books for the softcard) etc. Also I have an unlabeled II, probably a plus, likely a clone, built >from kit it seems. All chips are labeled and socketed (see picture) - great care was taken to assemble this. With floppy card and two drives. Also troubleshooting documentation, and some original manuals for Ultima, Zork, and other games. Also comes with a green mono monitor - that also has documentation which includes schematics. The game connector is brought to the back to a DB-9, and there is a homebrew joystick for it (made from an R/C stick and two pushbutton switches in a hobby box). Finally there is an unknown board, obviously a Apple II clone, but has both a 6502 and Z80 on it. Strangely, no ROMs (except for char rom?) but I have a unpopulated ROM card that may belong to it. Some corrosion on the underside, it probably doesn't work anymore. Still all chips are socketed, would be a good place to pull from. (The other two are assumed to work, but haven't been switched on for many years.) I'd like to give all of this away as one big pile. There are also boxes of floppies and other miscellany. Too large to ship, but can fit into a car trunk easily. Unrelated - but also free to good home - some old TRS-80 docs: Series I Editor/Assembler, Level II Basic ref, Tiny Pascal User's manual, "Getting started with TRS-80 Basic", "TRS-80 Graphics", VTOS 3.0 Operator's guide, and a "cheat sheet" for Scripsit. Could conceivably be shipped. -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem

16 years, 7 months

1
0
0 0

Working Telebit Netblazer available

by classiccmp＠crash.com

Buddy of mine in Western Massachusetts has a working Telebit Netblazer with (he believes) a complete set of manuals. He'd like to find it a new home rather than recycle it, free for cost of shipping from ZIP code 01012. He gave no guidance regarding international shipping, but /might/ be open to it. Contact me if interested, and I will provide your contact info to him on a first come, first served basis. Thanks, --Steve.

16 years, 7 months

1
0
0 0

Chrislin Industries Q-bus memory module

by labomb_s＠yahoo.com

Hi folks, I'm in the process of resurrecting a Heathkit H-11 (essentially a DEC LSI-11) that I acquired a few years back. It came with a memory card that, after much creative research, I've determined is a Chrislin Industries CI-1103 module. It's a 32kw board with no parity, and it uses 4116 16kx1 dynamic RAM chips. It has two 8-position DIP switches for configuration. Would anyone happen to have any details relative to configuring this board? Thx... Scott

16 years, 7 months

1
0
0 0

cctalk Digest, Vol 77, Issue 11

by mtapley＠swri.edu

At 12:00 -0600 1/8/10, Teo wrote: >How many people here do soldering (using lead solder) indoors with no way of >getting the smoke out of the house? <hand part way up> Used to, my wife, bless her heart, convinced me to do it on the balcony hereafter. *Normally* San Antonio is warm enough to make that practical.... (In my defense, I used to do it in the bathroom with the exhaust fan on.) At 12:00 -0600 1/8/10, Ian wrote: >It' snot liek iit can cuase drain bamage. :-) yeh, wtah he sed. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

16 years, 7 months

2
1
0 0

1Kx8 EPROMs Intel 8208 vs. 2708

by cclist＠sydex.com

Does anyone know the differences between the Intel 8708 and 2708 EPROMs? Thanks, Chuck

16 years, 7 months

6
12
0 0

SGI Part/System

by whsiung＠simconsultants.com

Hello, I came across your post online asking to trade a SGI Iris system and I wonder if you might have another SGI system called Onyx 10000 laying around for trade or sale? Or if you have any boards removed from this system, please let me know. Thank you & I look forward to hearing from you. Best Regards, Winnie Hsiung CentraTech Corporation

16 years, 7 months

1
0
0 0

Commodore chip design files

by dgriffi＠cs.csubak.edu

Someone is acquiring and going through old 9-track tapes of chip design files produced by Atari during their heyday. See http://www.atariage.com/ for the story. Does anyone know anything about what happened to Commodore's design files? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

16 years, 7 months

6
6
0 0

Hero Jr Manuals

by marvin＠west.net

> From: shumaker at att.net > > where does one get on the Heathkit Listserver? It has been a long time since I first got on the listserver. The information at the bottom of the digest that may help is: ----------------------------------------------------------- Products bought, sold or traded here is the responsibility of the parties involved. This list and the City of Tempe are not responsible for losses or misrepresentations of any kind. Buyer beware! ----------------------------------------------------------- This list is a public service of the City of Tempe, Arizona ----------------------------------------------------------- Subscription control - http://www.tempe.gov/lists/control.aspx?list=HEATH To post - HEATH at LISTS.TEMPE.GOV Archives - http://lists.tempe.gov/archives/HEATH.html

16 years, 7 months

2
1
0 0

Need Alpha Microsystems Videotrax hardware

by sourdif.pierre＠yahoo.ca

I have a Videotrax VHS that I am willing to give if somebody is willing to pay the shipping cost from Vancouver, British Columbia, Canada. mailto:sourdif.pierre at yahoo.ca

16 years, 7 months

1
0
0 0

Hero Jr Manuals

by marvin＠west.net

From the Heathkit Listserver: Subject: F.S. HERO JR MANUALS From: k2sse <k2sse at EMBARQMAIL.COM> Date: Wed, 6 Jan 2010 13:23:58 -0500 1 ea Hero Jr Programmers guide $10 shipped conus. 1 set Hero Jr Programming Language book and 1 ea Hero Jr Owners guide. $7 shipped conus. Thank you Al

16 years, 7 months

2
1
0 0

Commodore chip design files

by dm561＠torfree.net

Date: Wed, 6 Jan 2010 11:36:30 -0800 (PST) From: David Griffith <dgriffi at cs.csubak.edu> Subject: Re: Commodore chip design files On Wed, 6 Jan 2010, geoffrey oltmans wrote: > > Someone is acquiring and going through old 9-track tapes of chip > > design files produced by Atari during their heyday. See > > http://www.atariage.com/ for the story. Does anyone know anything > > about what happened to Commodore's design files? > That's really remarkable. I imagine that the masks are probably > worthless for today's processes though. :( > > It would be a fantastic aid in reverse engineering though. I'm interested in seeing the guts of the SID. Perhaps newer and more advanced ones can be made. -- David Griffith dgriffi at cs.csubak.edu --------------------------------------------------------------------------- No problem: http://mail.lipsia.de/~enigma/neu/6581.html#SIDR2 mike *************************************************************

16 years, 7 months

1
0
0 0

amiga ppc running 68k code?

by dgriffi＠cs.csubak.edu

Flipping through all sorts of thing Amiga, I was wondering how backwards-compatible the PPC varieties are. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

16 years, 7 months

3
2
0 0

Tek 4404 documentation on eBay

by aek＠bitsavers.org

Was curious if anyone on the list was the person who drove up the price of the 4404 schematics. I REALLY hate the fact you can no longer tell who you're bidding against. FWIW, I'm NOT going after the unit itself.

16 years, 7 months

5
8
0 0

Anti-mod measures (was Re: desoldering problems and technique)

by ethan.dicks＠gmail.com

On Mon, Jan 4, 2010 at 2:21 PM, Brian Lanning <brianlanning at gmail.com> wrote: > Sounds like the nintendo wii modding scene. ?Nintendo started putting > epoxy on the key chip the modders were targeting. ?Turns out you can > heat up the epoxy with a small torch and it pops right off. Or the epoxy or cut pins, etc., on the iOpener. Some of the "fixes" did make it difficult to mod the iOpener, but in the end, none were successful in keeping out the determined geeks. It did take a while to pick that epoxy out, but it can be done. ;-) -ethan

16 years, 7 months

7
7
0 0

Two free RK05 drives in Kamloops BC

by ball.of.john＠gmail.com

I picked these up a few months ago in hopes that I could add them on to a PDP-8 or PDP-11 I might hopefully some day find but I then discovered that the voice coil/head assemblies had been removed (which would mean I would have to find an alignment pack on top of finding new heads, a controller AND a PDP) and long story short, I have no use for them. They power up, all the boards seem to be in there, the spindle spins up if I trick it into thinking a pack is inserted but the foam has crumbled and several of the lamps have been removed from the front. If anyone wants these, feel free to tell me. I'm in Kamloops British Columbia. http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/RK05J/P9 203118.jpg http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/RK05J/P9 203105.jpg http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/RK05J/P9 203107.jpg

16 years, 7 months

1
0
0 0

Morrow Micro Decision bootable floppy images

by aek＠bitsavers.org

Bootable images for most flavors of Micro Decision, along with apps now up under http://bitsavers.org/bits/Morrow

16 years, 7 months

1
0
0 0

Hans Pufal's PDP-8 FPGA Core?

by sethm＠loomcom.com

Does anyone know what became of Hans Pufal's PDP-8 FPGA core? I've found quite a few references to it on Google, but no links to it anywhere. I tried contacting Hans at his gmail address about a week ago and haven't heard back, but I don't know if that's his current address or not. -Seth

16 years, 7 months

2
1
0 0

Mark Simonsen of Beagle Bros to keynote KansasFest 2010

by pneubauer＠bluerwhite.org

I thought this might interest some list members. -Peter === KANSAS CITY, MO ? December 22, 2009 ? Mark Simonsen, employee number three and later owner of Beagle Bros, will be the keynote speaker at KansasFest 2010. At Beagle Bros, whose popular software products for the Apple II hobbyist demonstrated the publisher's quirky sense of humor, Mark developed software including Flex Type, Beagle BASIC, Beagle Graphics, Triple-Dump, and Double-Take. In the early 1980s, Mark decided that he "wanted to work with the Apple for the rest of [his] life," a statement that captures the enthusiasm and spirit of Mark, Beagle Bros, and many Apple II users. Beagle Bros started in 1980 under the direction of Bert Kersey to provide software to casual users of the Apple II. A year and a half after graduating with a degree in computer science from Brigham Young University, Mark "fell in love with the Apple." Mark published Flex Type through Beagle Bros in 1982, joined the company as a programmer in 1983, and bought it in 1987 at the age of 29. Besides software like Shape Mechanic, GPLE, and DOS Boss for budding programmers, Beagle Bros produced books, posters, and even advertisements full of clever and useful tidbits demonstrating the capabilities of the Apple II. Later, the company produced highly regarded productivity software like Platinum Paint, BeagleWrite GS, and the TimeOut line of AppleWorks add-ons. Beagle Bros earned many loyal followers thanks to the combination of quality products, enthusiasm, and humor. Mark sold the company's product line in 1991 and 1992 to Quality Computers. Today, Mark helps save memories as the CEO of iPreserve, a company specializing in photo, film, video, and document preservation. KansasFest 2010, the 21st annual Apple II conference, is set for July 20th through July 25th at Rockhurst University in Kansas City, Missouri. KansasFest was originally hosted by Resource Central and has been brought to you by the KFest Committee since 1995. Any and all Apple II and Macintosh users, fans, and friends are invited to attend this year's "summer camp for geeks." Registration details will be announced on the KansasFest Web site in early 2010. Please heed the warning from Beagle Bros and refrain from feeding your disks to alligators. For photos, schedules, and presentations from past year's events, please visit the event's official Web site at http://www.kansasfest.org/ CONTACT: KansasFest 2010 http://www.kansasfest.org/ http://twitter.com/kansasfest/

16 years, 7 months

1
0
0 0

Call for displays at Midwest Gaming Classic March 27th and 28th

by wgungfu＠gmail.com

Just sending out another call to members of this list for vintage computing displays at the Midwest Gaming Classic in Milwaukee, Wisconsin. We've taken over the entire Sheraton Four Points hotel and convention center, and have expanded to 30,000 sq. ft. this year. The convention covers consoles (past to present), pinball, video coin, and vintage computing. With about 4,000 in attendance last year and even more expected this year because of the move closer to the city, your equipment and display will be enjoyed and appreciated by a lot of people. Photos of the entire show from last year are available here: http://www.flickr.com/photos/91071283 at N00/collections/72157622883180931/ I'm, as always, continually interested in expanding the vintage computing area. Besides items from my archive, we've had members from the Commodore and TI communities come and do great displays. We want more! Please contact me direct if you're interested. Also, computing equipment is always in high demand in the vending hall as well for anyone that's interested. Marty

16 years, 7 months

1
0
0 0

HP Integral / display schematic ?

by jdr_use＠bluewin.ch

First the TU56 broke, then the Lilith disks goes, and now it is the HP Integral's turn . The Integral, stored a year ago in working condition, has a display problem. After switching on the Integral makes all the right noises, but the display remains off. Anyone has a pinout, or schematic , of the Sharp LJ512U03 EL-display as used in the Integral ? ( there is something, but not much, in the 1985 HP Journal ) a replacement will be hard to find, and far too expensive of course. I do wonder how those with 100+ computers keep them all runnning, I have maybe 25 classics and find it hard to keep them alive. Jos Dreesen

16 years, 7 months

3
14
0 0

Going off the thread of a topic (Was: Compaq Portable II - ...)

by thomas.gardner＠sbcglobal.net

In Issue 15's Topics none of these emails had anything to do with their subject: "Compaq Portable II - Restoration Problem, Help requested". I would like to thank Fred for showing how one should change the subject line when the discussion goes off thread (see Topic 14) and suggest to the rest of us that this group will work better if we all follow Fred's example. 4. Re: Compaq Portable II - Restoration Problem, Help requested (Tony Duell) 5. Re: Compaq Portable II - Restoration Problem, Help requested (Chuck Guzis) 6. Re: Compaq Portable II - Restoration Problem, Help requested (Josh Dersch) 7. Re: Compaq Portable II - Restoration Problem, Help requested (Dave McGuire) 9. Re: Compaq Portable II - Restoration Problem, Help requested (Chuck Guzis) 11. Re: Compaq Portable II - Restoration Problem, Help requested (Dave McGuire) 13. Re: Compaq Portable II - Restoration Problem, Help requested (Chuck Guzis) 14. Disk change and write cacheing (Was: Compaq Portable II - (Fred Cisin) 16. Re: Compaq Portable II - Restoration Problem, Help requested (Tony Duell) 18. Re: Compaq Portable II - Restoration Problem, Help requested (Tony Duell) 21. Re: Compaq Portable II - Restoration Problem, Help requested (Josh Dersch) 22. Re: Compaq Portable II - Restoration Problem, Help requested (Dave McGuire) Tom

16 years, 7 months

1
0
0 0

desoldering problems and technique (and amiga 2000 mod)

by tshoppa＠wmata.com

Brian Lanning writes: >On Mon, Jan 4, 2010 at 5:59 AM, Steven Hirsch <snhirsch at gmail.com> wrote: >>> Does anyone know why the connectors were left off the board in the first >>> place? ?It seems kind of silly since they went to the effort to route the >>> signals and have the holes drilled. >> >> To save $0.50 per slot, I'd imagine. >This kind of thing makes me insane. I would have gladly paid another >$1, or even $10, had they just put the parts on the board. I have a >hard time believing (i.e. prefer to believe) that this would be purely >a cost cutting move. More insane things have happened. Witness the VAXstation II RC, where RC stood for "reduced configuration". DEC took a perfectly normal Q-bus Backplane, with installed edge connectors, then filled the edge connectors with epoxy to prevent users from installing third-party peripherals. All to sell at a price lower than the normal Microvax II's (about $6K IIRC.) When DEC found out that folks were taking advantage of them by buying a VAXStation II RC and swapping out the backplane, the responded by pouring The epoxy so that it glued the backplane to the chassis, as well. A few folks Got these and then managed to chisel out the old backplane. Tim.

16 years, 7 months

3
2
0 0

Compaq Portable II - Restoration Problem, Help requested

by thomas.gardner＠sbcglobal.net

I have 2 Portable IIs in fairly good shape, except that both of them, one an HDD model and one with two FDs. Both run Memory Check and POST but fail to boot. During POST they both give a "162 System Options Not Set - Run Setup" message but when I continue I get a "Non-system disk or disk error" message with several known good original disks (Compaq Setup Disk, PCDOS 3.3 StartUp disk, MSDOS 2.0 disk) Sometimes I get the message, "Disk Boot Failure" I tried replacing the 1987 battery in the HDD Portable II with a fresh battery purchased recently at Frys and had no change in the failure mode. I have two HDD/FDD controller cards and tried both in the HDD Portable II with no change in the failure mode. If I listen to the boot process, it sounds like it cannot read the boot sector. That is, I can hear one seek (or maybe a rezero) to a single location and then no more. As I recall during a DOS boot, you can hear multiple seeks as, first the boot sector loads and then the boot loader (in the boot sector) loads MSDOS.SYS, IO.SYS and the FAT. Since I never hear any seeking I suspect the boot sector cannot be read. I find it surprising that two machines having very different histories will fail in the same way. BTW, they are not even the same type FDDs, one is a "push button" type and the other is a "lidded" type. I am hoping that I am making some sort of operator error which can easily be corrected. Any ideas? Thanks and Happy New Years. Tom

16 years, 7 months

11
28
0 0

Tech tip: check your batteries! Terminals and logic boards

by jrr＠flippers.com

Anyone who collects laptops, terminals, or motherboards with memory backup needs to pay attention to the batteries. If the machine is in storage it would be a good idea to open it up and remove the battery (Ni-Cad or non-chargeable Alkaline) before it leaks and destroys the electronics. Note that many 1970s and 80s terminals all used rechargeable batteries to store user info... We often repair older arcade and pinball games (hey, they have computers - and they are classic!) where the battery has leaked and damaged or taken the board to the board graveyard... If you have some battery leakage you can read up on a possible solution here: http://www.flippers.com/battery.html Along with many other web sites I'm sure... John :-#)# -- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames) www.flippers.com "Old pinballers never die, they just flip out"

16 years, 7 months

3
2
0 0

Free in Seattle: HP 9826

by derschjo＠mail.msu.edu

The never-ending house cleanup continues. I have an HP 9826 computer (http://www.old-computers.com/museum/computer.asp?c=1068&st=1), in non-working condition. I picked this up at Boeing Surplus (RIP) a few years back. At that time, it was working but the built in monitor was not doing so well, but the machine worked fine otherwise. I powered it up recently and got nothing out of it aside from some fans spinning. I have no real desire to get it working again (too many other projects), but of course I don't want to see it trashed. It's in worn condition (it clearly got a lot of use at Boeing), but it doesn't look too bad. The "S" keycap is broken off the keyboard but can still be typed. It has the HPL ROM set installed, and 192k of memory, if I'm recalling the amount correctly from when it was running. If there's no interest by the end of the week, I'll be dropping this off at RE-PC in Tukwila. They tend to not scrap "cool" stuff like this so it'll probably end up on sale in their "vintage" department rather than sent to the scrap heap... (I hope). This is in the Seattle area. I'd rather not ship this but if you're willing to foot the bill (it's a heavy machine, HP made some pretty solid equipment back when the HP Way was still alive) we can work that out... - Josh

16 years, 7 months

1
0
0 0

desoldering problems and technique

by brianlanning＠gmail.com

Hi Everyone. I'm harvesting parts from an old 386 motherboard... a couple pin headers and a few ISA slots for that 2000 upgrade I mentioned earlier. I'm having a bit of trouble though. I'm using one of those bulb-type solder suckers. The problem is that I think I'm getting 95% of the solder out of there. But the bit of solder that remains is preventing me from removing the parts from the holes. Can anyone offer suggestions to make this go more smoothly? brian

16 years, 7 months

4
3
0 0

(a bit OT) Tube radios

by dgriffi＠cs.csubak.edu

Is there someone here who has built/designed an am/fm radio using currently manufactured vacuum tubes? If so, please point me in the right direction. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

16 years, 7 months

7
11
0 0

Selling Vintage Apple Collection

by mjj14＠aol.com

Hello group members, My name is Matt Janeczek and I live in Indianapolis, IN. I'm new to the list but come bearing goodies for all! To give you a little background on myself, I used to collect vintage Apple products from the Apple II all the way to the Power Macintosh G3 and amassed a fairly hefty collection over the years, from the very common to rare prototypes and everything in between. While I had great fun doing this for several years, I've come to the point in my life where I no longer have the time or space to continue the hobby. I'm trying to find a buyer (or small group of buyers) to purchase most, if not all, of my collection. It would save me a lot of time and effort if I can accomplish this versus listing everything individually on eBay or other sites. I would rate the vast majority of my collection in very good to excellent condition, so this isn't just a random junk pile I'm trying to dump on somebody, hah. I'm simply asking for reasonable, decent offers from buyers who will appreciate the collection for what it's worth. I'm not posting any prices but any serious offers will be considered. Shipping will be extra for any non-local purchases by the carrier of your choice. PayPal or money orders are acceptable forms of payment. The following address will take you to the Public folder of my iDisk. Click on the Apple folder to download pictures of everything listed below. http://public.me.com/mjaneczek -Mac Plus with 40 MB hard disk preloaded with an assortment of pre-OS 6 applications -Apple magnetic tape drive -Apple 5.25" external floppy drive -Apple IIGS keyboard with green and yellow keys -Apple Set Top Box -QuickTake 200 cameras (one new in box, one complete in box) and all accessories -Apple Presentation System (two new in box) -Apple TV/Video System (new in box) -Macintosh Portable Battery Recharger (two new in box) -GeoPort Telecom Adapter Kit (new in box) -DOS Compatibility Card for Power Macintosh 6100 (complete in box) -Power Macintosh AV Card (complete in box) -AudioVision Adapter Kit (new in box) -PowerBook Duo AC Adapter (new in box) -Network Server Memory Expansion Kit (two new in box) -Apple Ethernet NB Card (new in box) -Apple Ethernet CS Thin Coax Card (new in box) -Apple Ethernet 10T/5 Workgroup Hub (new in box) -Apple External Video Connector (new in box) -System 7.5 CD and manual -Assortment of Macintosh software titles, all complete in box (see pictures) -Apple Service Source CD 2003 -Apple Extended Keyboard II with Overlay -AppleDesign Powered Speakers -QuickTime Conferencing Kit -ADB Mouse I -Design Center 3D -Quicken 95 (syncs with PocketMoney on the Newton) -LocalTalk Locking Connector Kit DB-9 (new in box) -PrintShop and PrintShop Companion for the IIGS (complete in box) -GeoPort modem, software and manual -Avid VideoShop (the best video editing software to use with the 6100 AV card) -Assortment of early Apple II and Mac hardware, software and programming manuals -Apple II mouse and card -Echo II speaker and card -Music Construction Set for Apple II -20 loose floppy disks containing 150+ Apple II software titles -The Encyclopedia of Multimedia CD and LaserDisc -PowerBook Duo 280c with mini dock, floppy drive, extra battery, two power adapters, charging station, original manuals and documentation, preloaded with an assortment of software including MS Office and Adobe titles and compact carrying case to hold everything -PowerBook Duo 280c extra mini dock -PowerBook Due 280c replacement keyboard (new in box) The following items are not pictured but all are in excellent condition as well. Pictures provided upon request. -Performa 6115CD with OS 7.5, all hardware, accessories and original software bundle (complete in box) -Color StyleWriter 2400 (complete in box) -Color StyleWriter Pro (no box or manuals) -Color OneScanner 1200/30 (complete in box) -Color OneScanner Document Feeder (two complete in box) -Color OneScanner Transparent Media Adapter (complete in box) -PowerMac G3 Minitower and accessories including a scanner, printer, full size Wacom drawing tablet, MIDI interface, CD burner and speakers with OS 9 -Huge collection of MacAddict (with all shareware CDs), MacHome, Macworld and other computing magazines from the 1990s and early 2000s, literally hundreds all in near mint condition Please let me know if you have any questions. Thanks for looking!

16 years, 7 months

1
0
0 0

Looking for a few ISA cards

by brianlanning＠gmail.com

Hi everyone. I'm looking for an isa VGA card, a sound card, and an ne2000 network board. I have 1 16-bit slot and 2 8-bit slots to play with. This is for an amiga with a 286 bridge board. If anyone has any they'd be willing to part with, please let me know. I have a sound blaster and an ne2000 board, but they're both 16-bit. The amiga 2000 motherboard is setup for 16 bit slots in place of the 2 8-bit slots. The sockets just aren't there. (Not sure why commodore thought this was a good idea) I could find a donor board and solder in the extra connectors I guess. A more interesting solution though would be a 16-bit isa extender and an expansion chassis. I could put a passive backplane in another amiga 2000 case and have more 16-bit isa slots than I could fill. Alas, these extender cards are ridiculously expensive. If you know where to get these bus extenders new/used at a reasonable price, please let me know. So I guess the best solution for now would be a 16-bit vga card and an 8-bit ne2000 board. I'm not sure if the bridgeboard can emulate a sound blaster through the amiga's sound system, so maybe that's not needed at all. brian

16 years, 7 months

6
6
0 0

Looking for a few ISA cards

by dm561＠torfree.net

---------------Original Message: Date: Fri, 1 Jan 2010 21:03:32 -0600 From: Brian Lanning <brianlanning at gmail.com> Subject: Looking for a few ISA cards Hi everyone. I'm looking for an isa VGA card, a sound card, and an ne2000 network board. I have 1 16-bit slot and 2 8-bit slots to play with. This is for an amiga with a 286 bridge board. If anyone has any they'd be willing to part with, please let me know. ----------------Reply: You might have better luck on the Computer Vintage Forum for this sort of stuff: http://www.vintage-computer.com/vcforum/ m ******************************************************************************

16 years, 7 months

1
0
0 0

Compaq Portable II - Restoration Problem, Help requested

by thomas.gardner＠sbcglobal.net

Date: Sat, 2 Jan 2010 17:09:49 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: Compaq Portable II - Restoration Problem, Help requested To: cctalk at classiccmp.org Message-ID: <m1NR7U8-000J3vC at p850ug1> Content-Type: text/plain > Did you put those disks into a windows 2000/xp or newer pc? Possibly as far > back as win 98/95 (I don't remember when they started) the boot sector gets > overwritten if you put a non write protected disk in the drive in windows. Pretty sure some of these disks have never seen Windows of any form. At least one booted a Compaq Portable I owned by a friend Tom

16 years, 7 months

1
0
0 0

Osborne books

by charlesmorris800＠centurytel.net

There was some recent interest in Adam Osborne books. I have found one each of the following: "An Introduction to Microcomputers Volume II: Some Real Products, June 1977 Revision" "6800 Programming for Logic Design" Make me an offer. Shipping will be USPS Media Mail from zip 65775. thanks Charles

16 years, 7 months

4
3
0 0

RK05 alignment - without alignment pack?

by hachti＠hachti.de

Hi folks, I took a "new" RK05 disk drive from my heap. After defoaming I powered it up. I soon realized that the position sensor's glass had fallen off. Can be glued back in place easily. But after that I'll most probably have a misaligned RK05. The RK05 manual tells me how easy it is to realign the heads: Just load the alignment pack and... -- But I don't have an alignment pack :-( Does anybody (best would be in Europe) have an RK05 alignment pack I could use? Is there a known trick to do it without alignment pack? I have working drives and formatted disks handy. Best wishes, Philipp -- http://www.hachti.de

16 years, 7 months

12
18
0 0

Re: ‘Welcome to Macintosh’ on CNBC January 4 at 9:30PM ET

by nigel.d.williams＠gmail.com

Evan Koblentz wrote: > tell us more about the people who made it. I searched on their site and > cannot find any biographical information. http://www.applematters.com/article/the-apple-matters-interview-josh-rizzo/ "What is Welcome to Macintosh? Welcome to Macintosh is a documentary that mixes history, criticism and an unapologetic revelry of all things Apple." There is more in that interview at AppleMatters about their motivations and approach to the films content. Well worth watching just to listen to Jim Reekes' cutting comments about how difficult it can be to engineer great products. cheers, nigel www.retroComputingTasmania.com

16 years, 7 months

4
3
0 0

Coleco Adam name?

by evan＠snarc.net

Anyone know the background / meaning of Coleco's "Adam" name?

16 years, 8 months

18
63
0 0

plus hardcard patents

by aek＠bitsavers.org

US4639863 and US4819153 The interesting thing about them is they include the full schematics

16 years, 8 months

7
7
0 0

deth specula

by dgriffi＠cs.csubak.edu

Does anyone know where one may find material from the band Deth Specula? Yes, this is relevant to cctalk. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

16 years, 8 months

3
2
0 0

--

by quapla＠xs4all.nl

Although several hours to go, I would like to wish everybody a HAPPY NEW YEAR!!! Ed -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10

16 years, 8 months

2
1
0 0

HeathKit microcomputer learning posted on Montreal CL

by joachim.thiemann＠gmail.com

I have no connection to the seller, etc. I'd be interested in it myself but it's a bit too high a price for me - I think the seller is a bit over-optimistic, but if someone is interested, that's not my problem :-) http://montreal.en.craigslist.ca/ele/1531374606.html -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem

16 years, 8 months

2
1
0 0

MICROCORNUCOPIA ISSUES

by elazzerini＠interfree.it

Hi, i want to remember my webpage http://elazzerini.interfree.it <http://elazzerini.interfree.it/> on which i collected all i can about the SBC Ferguson BIGBOARD 1 i have. I wish to buy almost the issues 1-20 of the magazine on object. Is there anybody who wish to sell or donate it? This request is ALWAYS valid without expiration date. Thanks Enrico - Pisa (ITALY)

16 years, 8 months

1
0
0 0

Terminal servers (was Re: DEC Server 200/MC)

by ethan.dicks＠gmail.com

On 12/13/09, Pete Turnbull <pete at dunnington.plus.com> wrote: > On 13/12/2009 18:45, Al Kossow wrote: >> Livingston Portmaster or Encore Annex/Microannex were commonly used >> TCP/IP milking machines. > > I still use an Annex for consoles on a few of my machines (like some of > the PDP-11s). They were made by Xylogics, later bought by Bay Networks > => Nortel and are sometimes to be found rebadged by Sun. They're very > versatile, and you can use the ports in all sorts of ways. I am familiar with Annex terminal servers, but only from a user standpoint. I've never owned one nor set one up (in the day these were popular, we had large amounts of real ports on our boxes (16-56 each) and no TCP/IP). Is there an annex model with 8-16 ports I should look for? I really don't need to keep something with 48 ports powered up. Thanks, -ethan

16 years, 8 months

9
9
0 0

An introduction to microcomputers books serie

by dm561＠torfree.net

Date: Wed, 30 Dec 2009 14:06:50 -0800 From: Brent Hilpert <hilpert at cs.ubc.ca> Subject: Re: An introduction to microcomputers books serie St?phane Tsacas wrote: > > Does anyone has the ISBN of the latest edition of these 4 books by any > chance ? I think I found the first two, but I'm not sure they refer to the > latest edition: > > Author: Adam Osborne > > An introduction to microcomputers : > Vol.0: The Beginner's Book - 093198808X > Vol.1: Basic concepts - 0931988349 > Vol.2: Some real microprocessors - ? I don't know when the latest edition was, but the 1976 edition has: Volume II - Some Real Products Library of Congress Catalogue Card Number 76-374891 I don't see any other catalog numbers anywhere, other than Osborne's own series number of 3001. There is little in the way of publishing information. > Vol.3: Some real support devices - ? > > If you want to sell me your copy, drop me a mail. ---------REPLY:---------------------------------------------------------------------------- I've got Volume 0, The Beginner's Book (c) 1977 (#6001) and it doesn't have an ISBN or Library of Congress numbers either. Lots of pictures of an IMSAI 8080 though, with "the luxury of a Teletype"... FWIW, I also have a copy of #4001, 8080 Programming for Logic Design, (c) 1976, which does have a Library of Congress number, 77-670032. mike

16 years, 8 months

1
0
0 0

Ferguson Big Board question

by hilpert＠cs.ubc.ca

Enrico Lazzerini wrote: > Hi, > i collected all i can in this last 2 years on the mine BigBoard1 at my web site http://elazzerini.interfree.it > Please excuse me for my not perfect English. On the website I left some URL from where you can download other information like its schematic and so on. > What you mean saying: ?I am just considering divesting myself of a Ferguson Big Board system that I have never played with.? > You wish to play with it now or you wish to sell it? Let me know pls. elazzeriniATinterfree.it (substitute AT with @) I've been going through a few systems I have here, collecting photos and info, assessing which ones I wish to let go / get rid of / let somebody else play with / etc. The FBB system is one of them. As far as FBB systems go, I also have a homebrew Xerox-820-based portable (Xerox-820 is an FBB derivative). Some photos and info, so far; including the FBB and Xerox-820 systems: http://www3.telus.net/~bhilpert/tmp/ctg/index.html Two or three list members have expressed some interest in some of these already. I'm somewhat reluctant to ship this stuff, however; some of it would require crates or good double boxes. I had been collecting these, in part, as representative examples in the span of computer technology developments. I guess a lot of us here have a little fantasy of having a computer museum, and I would have liked the radio museum here to expand it's mandate to stay relevant, but most of these systems have been sitting in my house for some years now. I just powered up the FBB system and got it to boot to the monitor. I also just fixed a video problem with the homebrew Xerox-820, a problem that had been there since I received it about 9 years ago. The problem was failing 2114 RAM chips, as was just being discussed on the list, had to replace 2 of them. It now boots into CP/M from disk. Thanks (Enrico) for the pages and links about the FBB, the info was helpful in getting these going. Of course, once you start playing with them it becomes more difficult to let them go, damn it. I have enough projects to work on however.

16 years, 8 months

1
0
0 0

Symbolics.com sold

by sethm＠loomcom.com

This is old news, but I only just found out about it and I haven't seen it mentioned here. Apparently back in August, the symbolics.com domain was sold to a seedy looking investment company that's turned it into a blog about domain squatting. I guess it's kind of crazy to have an emotional attachment to a domain name, but I have to admit I'm a little bummed about it. Symbolics.com was Symbolics for as long as I've been aware of the Internet, even right up to the end when it was just David Schmidt doing a bit of support and offering a handful of spare parts. It's still around at symbolics-dks.com, but it's just not quite the same, y'know? And what an ignominious ending... -Seth

16 years, 8 months

3
4
0 0

An introduction to microcomputers books serie

by stephane.tsacas＠gmail.com

Hi Does anyone has the ISBN of the latest edition of these 4 books by any chance ? I think I found the first two, but I'm not sure they refer to the latest edition: Author: Adam Osborne An introduction to microcomputers : Vol.0: The Beginner's Book - 093198808X Vol.1: Basic concepts - 0931988349 Vol.2: Some real microprocessors - ? Vol.3: Some real support devices - ? If you want to sell me your copy, drop me a mail. Thank you -- Stephane http://updatedoften.blogspot.com

16 years, 8 months

2
1
0 0

the venerable 80186 (and 80188)

by chrism3667＠yahoo.com

off the top of my head, these computers sported the '186: Tandy TRS-80 model 2000 the Mindset Burroughs ICON Televideo Personal Mini Altos 586 (not sure if *that* one did, but one Altos model did regardless) Research Machines Nimbus (UK) odd but still interesting categories: original Ampro Little Board PC (single board computer) Radio Electronics RE Robot (could be bought ready built from Vesta Technologies - they kindly provided ROM images) - 80188 AST and Orchid 4-port cards (not really *computers*, yet they are) Vermont Microsystems PGC clone graphics card (80188) let me see if I remember this one correctly - Advanced Computer Products of Anaheim, CA produced a box w/a fully compatible 80186 mobo probably dozens and dozens if not hundreds of industrial embedded systems ********************************************************* likely there are other worthy additions to this list. But the very last entry is what I'd like to touch on. Where are all these blooming things? I even remember a company in Long Island (can't remember the name, off of Vets highway) that made one. The ability to enumerate every one is a task likely to be carried out as naming all the bizarre and perverse specialty software that (truly) was available for the Tandy 2000 at one time (bizarro scientific apps mostly, but some off the wall accounting packages and whatnot also). But give it a go gurus. Lessee what you can come up with - oh, hope you all had a Merry Christmas, Happy Hannukah, joyous Kwanzaa. But that's it. The pagans and atheists can go scratch LOL LOL LOL LOL LOL

16 years, 8 months

13
33
0 0

Dell PowerVault 120T

by silvercreekvalley＠yahoo.com

Hi, I've got a Dell PowerVault 120T available if anyone is interested. I believe this is a DLT7000 tape autoloader and the interface on the back looks to be a SCSI (possibly differential scsi). Info I'm sure is available on the web. I've never switched this unit on, so cant confirm if its working or not. It looks as if its designed to fit a 19" rack, and there is one rack ear on the right side, nothing on the left. Anyway get in touch off list if interested. I'm in the UK (Yorkshire). Its free if collected. Cheers Ian.

16 years, 8 months

1
0
0 0

Vitek & Alcyon Regulus info (early 68k UNIX)

by derschjo＠mail.msu.edu

Hi all -- I snagged that Vitek Systems machine that was being discussed earlier this month and now that I'm back from my holiday travels I have some time to play with it. It's a 68010 machine with 2mb of memory and 2 40mb scsi drives. Hooked up a terminal to TT0 and it booted up to a login prompt, much to my amazement. The login banner says: VITEK Nerve Center II Copyright (c) 1992 by bioMerieux Vitek Inc. So I guess that gives a bit more detail on what this machine is. Clearly a system used in some sort of medical application, and bioMerieux appears to still be in business, though I can't find any info on this particular machine on their site. It appears to be running an early UNIX variant called Regulus (5.2.2, dated 7/31/86) by a company called Alcyon. I can't find much more information on the 'net other than the fact that it existed. Anyone know anything about this version of UNIX? Any idea what filesystem it used? I know none of the usernames/passwords, so either a backdoor or some way to access the filesystem would be handy... I'm going to be dumping an image of the drives this evening, before something catastrophic happens to them... Thanks, Josh

16 years, 8 months

4
10
0 0

Convergent NGEN documentation

by aek＠bitsavers.org

I spent the weekend scanning and taking pictures of what I was able to find on the NGEN/Burroughs B2x systems, now up under http://bitsavers.org/pdf/convergent There are a few things in particular on the wanted list, mainly hardware docs. I'm hoping another list member will scan the system documentation that he has. I'm also working on trying to understand how to make a bootable floppy >from a running 10mb system. It was interesting to see how the Xerox XDE development envronment influenced CTOS. File naming conventions are pretty much the same as in XDE, for example.

16 years, 8 months

2
2
0 0

Dec paddle board needed

by tshoppa＠wmata.com

Guy writes: > On Dec 28, 2009, at 12:18 PM, Ed Groenenberg wrote: >> Maybe one of you can help me, I need an M908 paddle board. > While the number is familiar, what is it for? TU11 to TU56 cable (and possibly other things too). Tim.

16 years, 8 months

1
0
0 0

IBM (Federal Systems Division) FSC Documents, and IBM GC20 documents

by spedraja＠ono.com

Hello. I am searching for some documents from IBM Federal Systems Division, particularly the related with the Systems Software Development (FSC-71-5108 et.al). In the other hand, Bitsavers contains some valuable documents in http://www.bitsavers.org/pdf/ibm/generalInfo/ related with Software Engineering, but I should like to know if this set can be expanded in a future with some other interesting documents released by IBM in the 60/70 and early 80s (HIPO diagrams and so). I have some programmed courses about the matter from this epoch (which I saved from the dumpster) but in Spanish. Regards Sergio

16 years, 8 months

1
0
0 0

DDC BUS-65517 1553 card

by shrlkhms＠comcast.net

Do you still have these 3 cards (65517)?

16 years, 8 months

1
0
0 0

GopherVR

by spectre＠floodgap.com

For those who remember GopherVR, this will need no introduction; it is a virtual reality interface to Gopherspace. I have managed to get it working again on Mac OS X, and it should build other places. There is a long way to go, but it is now stable and does work even though it is still not finished. A pre-built binary is available for Mac OS X 10.4+, and source for everyone else. http://www.floodgap.com/software/gophervr/ -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- "Eight tries. The number is ... seven." ------------------------------------

16 years, 8 months

1
0
0 0

Dec paddle board needed

by quapla＠xs4all.nl

Hello All, Everyone recovered from X-Mas yet :) Maybe one of you can help me, I need an M908 paddle board. Let me know off list and maybe we can come to an agreement. Thanks, Ed -- Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10

16 years, 8 months

2
1
0 0

Old DEC Power Control 861C

by icipasla＠gmail.com

Old DEC Power Control 861C Hi, looks like I am not getting the posting in my e-mail but my messages do get posted. I found this replyto my previous message by Tony Duell <cctalk%40classiccmp.org?Subject=Re%3A%20Old%20DEC%20Power%20Control%20861C&In-Reply-To=%3Cm1NM4jS-000J3uC%40p850ug1%3E>in the archives. To follow-up, the 861C emits a crackling noise for the first few seconds (20 or so) and then I can hear a relay chattering (very noisy!). Also the light on the front panel is flashing continuously (maybe that's normal.) Normand * * ------------------------------ >* *>* On December 18, 2009, Normand Fisher wrote: *>* > Hi Mike, *>* > *>* > I have an old 861C (and a 874A) which are very noisy and trigger off *>* > after a short period under load. Would you, by chance, have a copy of *>* > the schematics? *>* > *>* > Or matter of fact any knowledge as to the cause of noise(old capacitors? *>* > ...). *>* *>* Your best bet wouls be to post to Classiccmp Classiccmp mailing list at *>* cctalk at classiccmp.org. <http://www.classiccmp.org/mailman/listinfo/cctalk> * The DEC power cotnrollers are _very_ simple inside, and you don't really need tjhe printsets to repair them. I am not sure I understand the fault description. In particular, what sort of noise (hum, chattering relay?). And what do you mean by 'trigger off'. Do you mean the contactor drops out, or the breaker trips, or what? Let me know exactly what happens and I might be able to help. -tony

16 years, 8 months

2
1
0 0

HP-IB disc drive emulation program available

by jdbryan＠acm.org

Ansgar Kueckes has released a new version of his "HPDrive" disc emulator that works with HP 64000 logic development stations and HP 1000 MEF-series minicomputers, in addition to the HP 9845. The emulator is hosted on a Windows PC with a GPIB interface card and appears to the target system to be any of a selection of HP-IB floppy, hard, or cartridge tape drives that use the Amigo or CS/80 protocols. Drives that are not supported natively may be added via a configuration file if the drive parameters (Amigo) or Describe information (CS/80) is supplied. The project page is here: http://www.hp9845.net/9845/projects/hpdrive/ The emulator has not been tested with the HP 1000 A/L-series, nor with the HP 3000, but the disc emulations are reasonably thorough and may well work with these systems. My thanks to Michel Bissonnette, Al Kossow, Frank McConnell, and Jay West for lending hardware for HPDrive development and testing. -- Dave

16 years, 8 months

18
60
0 0

FS: 8" IBM Diskettes - quantity 40 Spring Hill FL

by ygehrich＠yahoo.com

8" (eight inch) IBM Diskettes - quantity 40 Some blank, some with software $12 + shipping for all Paypal preferred, cash, check or money order

16 years, 8 months

2
1
0 0

the venerable 80186 (and 80188)

by feldman.r＠comcast.net

The HP 100LX/200LX/1000CX/OG700LX use the "Hornet" chip, which contains an 80C186 along with I/O, display and other modules. There is info on this chip (block diagram, pinout) at http://www.daniel-hertrich.de/en/knowledgebase/hplx/hornet ? Bob ----- Original Message ----- Date: Sun, 27 Dec 2009 18:07:23 -0800 (PST) From: Cameron Kaiser <spectre at floodgap.com> Subject: Re: the venerable 80186 (and 80188) To: cctalk at classiccmp.org Message-ID: <200912280207.nBS27NxF017080 at floodgap.com> Content-Type: text/plain; charset=US-ASCII > > Also add the HP 95LX palmtop, and possibly others in the LX line (I don't > > remember if they all do). They used a '186. > > IIRC the 95LX uses an 80C188. Actually, I was thinking of the HP 200LX, sorry. That *does* have a 80186 for sure. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- ??Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- If it's tourist season, why can't we shoot them? -- Justice Gustine -------- ???

16 years, 8 months

1
0
0 0

RT-PC Gone!

by snhirsch＠gmail.com

Thanks to all who contacted me. The RT-PC has been taken. Steve --

16 years, 8 months

2
1
0 0

2732 eproms.

by geoffr＠zipcon.net

Does anyone have a stash of them? I have one fo them and it is getting old burning it, testing the device, erasing it, and burning different code into it, lather ? rinse ? repeat.

16 years, 8 months

13
21
0 0

Help restoring early issues of Mark-8 Newsletter

by lausadel＠gmail.com

Hi. Just wondering if you ever figured out how to chemically lift images from faded dittos. I have the same problem with a personal document that you did with the Mark-8 Newsletter. Thanks. --Dawn Lausa

16 years, 8 months

1
0
0 0

VAX 11/750 2.5V supply problems

by david_comley＠yahoo.com

I have been trying for some time to repair the 2.5V supply on an 11/750, without success. The symptoms are loud squealing which changes back and forth in pitch (in fact it sounds a bit like RTTY, only over a couple of pitches), OVERCURRENT and REG FAIL indicators on the status panel on the back of the machine. All the boards are pulled from the backplane and I?m using dummy loads on the supply. There?s no evidence of shorts on the chassis or on any of the supply outputs. I?m testing with the voltage sense wiring in place. The output electrolytics have been replaced on the 2 regulator boards and the big electrolytics on the primary side check out OK. I?ve measured 300V DC across the switching transistors on the primary side. I?ve not detected any problems with the electrolytics on the 30V supply and 2.5V supply but I have ordered replacements just to be on the safe side. I?ve checked over all the diodes and transistors with the Huntron tracker with no obvious evidence of any failures. So far all I?ve really been able to establish is that there?s no output on the ?secondary? side of the supply, that is, the 30V supply which drives the +/-5VB and 12V regulators, and the 2.5V main output of the supply. I think the REG FAIL lamp is a red herring because without the 30V supply active, REG FAIL would have to be lit if I understand the schematic correctly. I?m posting on the off-chance that someone has had this problem and has dealt with it. I?ve been looking at this on and off since July but haven?t made any headway. Thanks for any suggestions the group may be able to offer. By the way, the story of the machine and work done to date is at http://comley.us/browse.php?&action=show&artefactID=1051 -Dave

16 years, 8 months

1
0
0 0

Data General software agreement pre-announcement (Merry Christmas)

by bruce＠Wild-Hare.com

Data General legacy preservation fans - After 9+ years of negotiations, Wild Hare has secured an agreement with Data General to recover, archive and release Data General 16-bit and some 32-bit software for educational and non-commercial purposes. A official announcement will be made next month, but I wanted to let list members know that sometimes good things can happen. A special thanks is extended to the amazing William Donzelli, and to the quick-footed Carl Friend, who made the physical tape rescue in Massachusetts possible. Thanks also to the legal and technical folk at EMC (Data General) who finally made this a legal reality - and who might prefer annonymity at this point. Details will be posted in a few weeks, but I wanted to share this bit of Merry Christmas for DG fans. Bruce Bruce Ray Wild Hare Computer Systems, Inc. bkr at WildHareComputers.com ...preserving the Data General legacy: www.NovasAreForever.com

16 years, 8 months

2
2
0 0

Data General software agreement pre-announcement (Merry Christmas)

by bruce＠Wild-Hare.com

G'day DG legacy preservation fans - After 9+ years of negotiations, Wild Hare has secured an agreement with Data General to recover, archive and release Data General 16-bit and some 32-bit software for educational and non-commercial purposes. A official announcement will be made next month, but I wanted to let list members know that sometimes good things can happen. A special thanks is extended to the amazing William Donzelli, and to the quick-footed Carl Friend, who made the physical tape rescue in Massachusetts possible. Thanks also to the legal and technical folk at EMC (Data General) who finally made this a legal reality - and who might prefer annonymity at this point. Details will be posted in a few weeks, but I wanted to share this bit of Merry Christmas for DG fans. Bruce Bruce Ray Wild Hare Computer Systems, Inc. bkr at WildHareComputers.com ...preserving the Data General legacy: www.NovasAreForever.com

16 years, 8 months

5
4
0 0

Oki

by evan＠snarc.net

Is anyone here an expert on Oki computers from the early 1980s? If so, please contact me off-list.

16 years, 8 months

1
0
0 0

Happy Newtonsday!

by mtapley＠swri.edu

...in deference to one of our treasured list members. And to others, Merry Christmas; and to all, a Happy New Year; may your capacitors all retain a low ESR and may the "good stuff" appear at the curbside of your path, decked with signs saying "take me"! -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

16 years, 8 months

3
3
0 0

IBM RT-PC available

by snhirsch＠gmail.com

All, In my ongoing effort at clearing space, I must part with my beloved IBM RT-PC. This is a desktop form-factor with the "enhanced advanced CPU" (don't you love 80s marketing-speak) running at a stunning 16Mhz. with 8MB of memory on-board. I have upgraded it with a 1GB ATA drive and an Adaptec SCSI adapter and it's currently loaded with AOS / BSD 4.4. Has ethernet adapter and was in-use on my own network. Other items: - A bookshelf or two of documentation - One or two of every expansion card ever made for the unit - Extra mouse and keyboard (non-standard connectors) - Multi-Port serial card for POS systems (?) - Complete software distribution of AIX 2.x - Complete AOS / BSD 4.3 - The semi-mythical BSD 4.4 port w/ sources - A couple of ESDI drives (original hard disk) - The "academic" OS high-resolution grey-scale monitor w/ video adapter. This supports X10 R-something under AOS. And probably many, many other goodies that slipped my mind. I'm open to negotiation on price, but the kicker is: You Gotta Come And Get It. There's enough stuff to fill the back of a small van and I'm not even going to address shipment. I'm located in Burlington, VT. Please, someone give this a nice home? Steve --

16 years, 8 months

12
20
0 0

PDP-11/34A acquistion and questions -

by jack.rubin＠ameritech.net

I recently rescued the following system: One full size (H960)rack cabinet containing (from the top down) - DEC PDP-11 crest Telebyte TDX 1/2" tape drive PDP-11/34A w/ full programmer's console Data Systems Design (DSD) 880-120 homebrew connector panel Wesperline I/O unit One "corporate highboy" cabinet (VAX style) RLO2 drive BA11-KE chassis non-racked items - 2nd RLO2 drive DSD twin floppy system, 110/430 additionally - 8 disk packs + "pack rack" several boxes of 8" floppies, including an install set for RT-11 V5.1c, configured by Cambridge Digital, dated 1984 card inventory (by chassis slot) - - 11/34A (chassis marked 11/34A XX) (1) M8266 control module (KD11-EA) (2) M8265 datapath module (KD11-EA) (3) M8267 floating point (FP-11A) (4) M7859 programmer cons (KY11-LB) (5) M8268 cache board (KK11-A) (6) M7801 data word cntrl (MC11) [I think I must have misread the card number and this is really M7891, 128KW MOS RAM, but I haven't yet verified that] (9)<->(11) M9202 backplane jumper (12)DSD 808830 controller for DSD 880-120 (13)DILOG DU130 tape controller (14)M7865) SLU+RTC (DL11-W) - BA-11-KE (3) M7860 parallel I/O (DR11-C) (5)&(6) MSP-3/A, MSP-3/C Computer Design Assoc. boards (8) M7762 RL02 disk controller (RL11) (9)<->(11) M9202 backplane jumper (12)&(13) MDP-3/M CDA boards (includes 4 AMD 2903 SuperSlice chips) Pictures at: http://tinyurl.com/pdp1134a ************************* The system was apparently used for data logging and analysis in a windtunnel application. Questions: 1) Can anyone provide more info on the Computer Design Associates board sets? Each of the board sets is comprised of two boards in adjoining slots with ribbon cables across the board tops. I've emailed the researcher who used this system in the early '80s but haven't heard back from him yet. 2) Are there PDP8 device interfaces for either the DSD430 or DSD880? The 430 emulates a pair of RX02's; the 880 emulates an RX02 + RL02 and is capable of formatting floppy disks in stand-alone mode. From the bitsavers manuals, I see that there is a PDP8 interface (DSD 2131) for the 210 and 440 chassis, but it's not clear if there were similar interfaces for the other units or if the 2131 will support the 430 chassis. Thanks for any help, Jack

16 years, 8 months

2
1
0 0

Apple monitors

by brianlanning＠gmail.com

So it appears that not all apple monitors are created equal. I have a 17" apple monitor from a mac that I tried to attach to an Apple 2gs. They're all db-15, but this combo didn't work. Is it a frequency range thing? Is there an easy way to get this to work? The 9" 2gs monitor is a bit small. brian

16 years, 8 months

2
2
0 0

CNC/NC

by roger.holmes＠microspot.co.uk

> From: Ethan Dicks <ethan.dicks at gmail.com> > > <roger.holmes at microspot.co.uk> wrote: >> I wrote a similar program in 1979 to do a similar job with an Apple ][ europlus (to a Bridgeport Series 1). > > Oddly enough, one of my side projects is tracking down a problem with > the original controls for a Bridgeport Series 2. One of the control > cabinets got packed with sawdust from an adjacent woodshop, so it > appears to be power-supply related (all the motor driver and pre-amp > boards check out, but only X moves; Y and Z make noise but are > stationary). If I remember right the series 2 used stepper motors. One set of coils faulty? But on Y and Z seems strange. Maybe there's something in common for the coils of both axes. Rather less likely but the (woodruff?) drive keys could have sheared, but again on both axes at once seems unlikely. Do the motors turn or just go a tiny bit backward and forwards? Of course its possible one of the axes could have failed earlier and the machine used for simpler jobs. I once made a CNC program (prepared on the Apple 2) to machine elliptical valves (upside down poppet valves) and the program only used X and Y axes. Similar jobs must exist.

16 years, 8 months

2
1
0 0

Need Parts for DIGI-COMP1

by jthecman＠netscape.net

Happy Holidays to all I'am trying to restore a DIGI-COMP1 that I got off eBay awhile back and need the following items. It's missing 1-End Plate #2 (broken), 1-Clock Tube #16 or a way to make one, 3-Springs #17 and 1-Logic & Clock Rod #18. If anyone has these parts that want sale or give away please contact me off list. Thanks, John

16 years, 8 months

1
0
0 0

1Mx4 DRAM DIPs

by keithvz＠verizon.net

Hi, This is my annual 1Mx4 DRAM memory chip post. I'm looking for some old DRAM memory chips with the following specs: 20-pin DIP memory chips (16) 1meg x 4-bit dips make up a bank of 8mb. Should be 60-ns Fast Page Mode non-parity An example would be Toshiba TC514400AP-60. Other manufacturers might use the following base part numbers: Fujitsu MB : 814400 Goldstar GM : 71C4400 Hitachi HM : 514400 Hyundai HY : 514400 Micron MT : 4C4001 Mitsubishi M5M: 44400 I have some in surface mount (in a goofy 26/20 format), but without small PCBs to convert, they aren't much use. There are some out there in SOJ, also not useful. Yes, I know some old video cards might have them, and yes, I know the Epson ActionLaser 1500's have them. I haven't found a single source in a couple years. There are some companies, like usbid.com, that have them. All of these companies have $250-$500 minimum purchases, and I really don't need that many of them. Or want to pay that much. The form factor is important, but if I can only get EDO and 80ns, I'll take those too. :) Thanks and Merry Christmas. Keith

16 years, 8 months

2
3
0 0

Data General software agreement pre-announcement (Merry Christmas)

by shoppa＠trailing-edge.com

Bruce, My contribution, tapes I recovered and imaged in the mid-90's: http://www.trailing-edge.com/~shoppa/dg1.zip http://www.trailing-edge.com/~shoppa/dg2.zip Good luck with the big project! Tim.

16 years, 8 months

1
0
0 0

CNC/NC

by roger.holmes＠microspot.co.uk

> From: "Rick Bensene" <rickb at bensene.com> > > Earlier controls had RS-232 ports. I wrote a system on a PC running > FreeBSD Linux using Perl (a very early version) that would send and > receive programs to all of the controls in the shop over RS-232. I used > a SCSI terminal server box from Central Data that hooked up to the PC > over a SCSI channel, and provided 16 RS-232 serial ports that went out > to all of the machines. Amazingly enough, this thing is still in > service (in a shop environment) after over 15 years, providing an easy > way to load programs on some of the older controls. I wrote a similar program in 1979 to do a similar job with an Apple ][ europlus (to a Bridgeport Series 1). It was written in my own high level assembler (for the 6502) and worked with only one machine at a time and included Apple's word processor integrated in (by disassembly, converting to high level and inclusion in the source with suitable links) and we sold a normal version with it with permission from Apple.We also had a program which emulated a vertical mill and drew the programmed path on screen or on a pen plotter. I know they were in use about 20 years later but probably all dead by now. We also did a version which allowed operators to program a Heidenheim 131 or 145(?) controller on the Apple 2 without tying up the real machine which cost about 30 times as much as an Apple 2.

16 years, 8 months

5
4
0 0

DECmemory

by shoppa＠trailing-edge.com

Will writes: > What machine does the DEC 54-21139 SIMM go with? VAXstation or Alpha? > I have quite a pile - available cheap! It goes in at least some of the DEC 3000 Alphastations. Which themselves could use commodity PC-clone memory with parity (at least for the 8MB SIMM's, there's some special sensing resistor in the DEC 32MB SIMM's) so they would probably work in anything needing 8MB Parity SIMMs. Geeze, I haven't thought about DEC 3000 memory in a decade. IIRC the Alphastations shipped with 8MB SIMM's and these often were pulled and replaced with 32MB SIMM's. Tim.

16 years, 8 months

2
1
0 0

DDC BUS-65517 1553 card

by arlin＠gdca.com

Do you have any BUS-65517 cards. I have a system that I need some spares on. Arlin 925-784-4642

16 years, 8 months

1
0
0 0

IBM 9375

by wdonzelli＠gmail.com

Curious - did someone here win that nice IBM 9375 on Ebay? I doubt it was a scrapper - the hammer price is too high. -- Will

16 years, 8 months

1
0
0 0

HP91xx controllers (was HP-IB disc drive emulation programavailable)

by shoppa＠trailing-edge.com

Chuck writes: > What we no longer have is convenient inexpensive storage for modest > amounts of information, say a megabyte or two? Ideally, such a > medium would be read-mostly or write-once and a handful of them would > buy a cup of coffee at your local watering hole. When I got started in computing, a RK05 pack was circa $200 and a 8" floppy was circa $5. A researcher or student might have had a personal RK05 or two and a box of floppies. Today for the non-inflation-amount of money I get a couple of Terabyte portable drives for $200 and a cheapie USB keychain for $5. And they're used for similar purposes (despite a factor of 5 or more orders of magnuted in byte capacity) as the 30-year old equivalents. I see things really staying the same in price and in usage more than changing. What's really cool, is both the USB keychain and the terabyte portable drive use the same cheap and ubiquitous low-end interface. That is an improvement over 30 years ago (don't take that as a slam against the Unibus, if I wanted to insult the Unibus I would call it "cheap and ubiquitous" 30 years ago!) Tim.

16 years, 8 months

20
39
0 0

Burroughs B5500 and successors (Was: Happy DEC-20 Day!)

by alanp＠snowmoose.com

> > From: "Jonas Otter" <jonas at otter.se> > The architecture has so-called display registers, each of which pointed > to a stack frame for a lexicographical level in the code, i.e. the > procedure call level. Data is addressed as an address couple consisting > of a display register number and an offset, stored in a so-called > Indirect Reference Word (IRW). Data outside of the stack can be > addressed by means of descriptors. Data in another program's stack is > addressed by means of Stuffed Indirect Reference Words (SIRW), which > include a stack number and an offset. The operating system keeps track > of individual program stacks by means of a tree of pointers to job > stacks. Also, to keep track of the procedure calling and return linkage, > Mark Stack Control Words (MSCW) are created whenever a procedure is > called. The Display Registers point to the MSCWs. > Yes, that all sounds familiar. Do you recall the sizes? > All this is designed to support block-structured high level languages, in > fact all the operating system software is (was) written in various ALGOL > dialects. > My favorite dialect was NEWP. I particularly liked the UNSAFE directive. I worked for Burroughs from just before the name change to Unisys (summer '86) to spring '89, my first job out of college. I worked on A Series, V Series, B1000, BTOS and DOS stuff while I was there. At school, I used BSD Unix on VAX and DEC-20, so the Burroughs stuff was really different (from stack machines to two-wire direct, poll/select terminals) and fun to play with and learn. alan

16 years, 8 months

1
0
0 0

for the Gopher nerds in the audience

by spectre＠floodgap.com

A successful build of GopherVR on Mac OS X: http://www.floodgap.com/iv/632 As you can see, this is the famous unfinished "virtual reality" gopher client. And it really works! I just wanted to share the joy. It doesn't do much more than this, and required some unholy hacking to get it this far, but I'm hoping to release source soon. For those who want to play with GopherVR on classic Mac OS now, you can get it from gopher://gopher.floodgap.com/1/gopher/clients/mac/ -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- If it's tourist season, why can't we shoot them? -- Justice Gustine --------

16 years, 8 months

1
0
0 0

Searching for some Systems Analysis Documents

by spedraja＠ono.com

Hello. I am searching for these documents or books related with Systems Analysis: * Study Organization Plan, IBM, (Form C20-8075), 1961 * Time Automated Grid System, IBM, (Form GY 20-0358), 1971 * A Study Guide for Accurately Defined Systems, NCR, 1968 Regards Sergio

16 years, 8 months

1
0
0 0

Anyone happen to have one of these chips?

by teoz＠neo.rr.com

DM74LS 244WM Octal tri-state buffers/line drivers/line receivers 20 pin chip, surface mount. I need one for an 8 bit ISA SCSI card so the ROM I installed works. Looking over my junk boards I dont see any I can snag. If you have one let me know.

16 years, 8 months

4
3
0 0

Burroughs B5500 and successors (Was: Happy DEC-20 Day!)

by jonas＠otter.se

Alan Perry <alanp at snowmoose.com> wrote: > > This also included the Burroughs/Unisys A-series systems that were > made into the early 90s. > > The A-series systems used a 52-bit, tagged word. 1 bit of parity, 3 > bits of tag and 48 bits of data. > > I don't recall how the addressing worked and Al has my papers on the > architecture, so I can't look it up ... The A-series were direct successors to the B5000/6000/7000 series and used the same architecture. Unisys still sells the ClearPath MCP systems, now using Intel processors and running the MCP operating system (under emulation I think). The architecture has so-called display registers, each of which pointed to a stack frame for a lexicographical level in the code, i.e. the procedure call level. Data is addressed as an address couple consisting of a display register number and an offset, stored in a so-called Indirect Reference Word (IRW). Data outside of the stack can be addressed by means of descriptors. Data in another program's stack is addressed by means of Stuffed Indirect Reference Words (SIRW), which include a stack number and an offset. The operating system keeps track of individual program stacks by means of a tree of pointers to job stacks. Also, to keep track of the procedure calling and return linkage, Mark Stack Control Words (MSCW) are created whenever a procedure is called. The Display Registers point to the MSCWs. All this is designed to support block-structured high level languages, in fact all the operating system software is (was) written in various ALGOL dialects. There is quite a lot of information about this on the net. A book which describes it is Computer Systems Organization by Elliott Organick (ACM Monograph Series, 1973. LCN: 72-88334). -Jonas

16 years, 8 months

1
0
0 0

Opening 20 year old software on it's anniversary

by RBORSUK＠COLOURFULL.COM

So about a month ago I purchased some Wang branded MSDOS software off of eBay. Much to my delight, when it arrived, it was still factory sealed. I showed my wife the date of manufacture on the label and she suggested I wait to open it. I reluctantly agreed to wait. So it's been about a month and today is the day. Please enjoy some pictures of the moment. http://gallery.me.com/irisworld/100109 Rob Rob Borsuk email: rborsuk at colourfull.com Colourfull Creations Web: http://www.colourfull.com

16 years, 8 months

4
5
0 0

DECmemory

by wdonzelli＠gmail.com

What machine does the DEC 54-21139 SIMM go with? VAXstation or Alpha? I have quite a pile - available cheap! -- Will

16 years, 8 months

1
0
0 0

Speechless! (ebay madness alert)

by evan＠snarc.net

I sent a question to the seller, asking for clarification about the serial number. This is the (insane) reply that I got: ------------------ evan_k, thank you for asking about this fine microwaved masterpiece of fine art. This was a perfectly working complete unaltered Mac 512k before it was microwaved by the AMIR 9000 One Ton Microwaving Robot, now a first of it's kind. It is now an incredible work of art considered to be priceless and even better than before it was microwaved. The artist also known as your professional microwave operator waited 25 years to microwave this computer. Some things only just get better with age especially when it comes to the world of art. You can be assured that a fine connoisseur of art will acquire this work of art. The artists has sold artworks to collectors which include Dale Djerassi [son of the of Carl Djerassi who invented the birth control pill, Georgia Frontier just to name a couple. He has also been featured internationally in numerous prominent publications that have included HGTV, OPRAH, TLC, People magazine, Mal Sharp's Weird Rooms Book, CNN, Good morning show, 100 Hojdare Sweden, Urdu Magazine, Los Angeles Times and so on. He also was featured at the most prominent modern art museum in Baltimore called the AVAM. You can be sure this art is authentic, original & sign and dated by the artist & guaranteed microwaved.

16 years, 8 months

13
14
0 0

Happy DEC-20 Day!

by roger.holmes＠microspot.co.uk

>>> In hindsight, could the DEC-20 or RISC version of it >>> had marketing and other bad luck changed ,and >>> today replaced the PC in many applications? >> >> Six bit based architectures all died with the rise of the IBM S/360 >> family. DEC, CDC, Univac. >> >> It also did not help that many of these old line mainframe >> architectures were getting hard to extend. For the DEC 36 bitters - >> what does one do after the 18 bit address pointer, with two neatly >> stuffed into a 36 bit word? A kludge. What does one do after the 36 >> bit address pointer? A worse kludge. > > I kind of suspected that was the case. Did anyone make a large 48 bit > machine? > If you mean physically large, then yes. However on the 1301, addresses range only from 0 to 3999 (decimal). Probably not what you meant really.

16 years, 8 months

2
1
0 0

[Fwd: [Mandrakeot] Hey Gene - Amiga stuff]

by woyciesjes＠sbcglobal.net

FYI, for the Amiga developers around here.... -------- Original Message -------- Subject: [Mandrakeot] Hey Gene - Amiga stuff Date: Mon, 21 Dec 2009 21:54:21 -0500 From: Ric Moore Reply-To: mandrakeot at mdw1982.com To: mandrakeot at mdw1982.com http://feeds.arstechnica.com/~r/arstechnica/open-source/~3/KX0p_xQ7x7g/know… Thought you'd get a kick outa this one. Ric -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ "From there to here, From here to there, Funny things are everywhere." --- Dr. Seuss

16 years, 8 months

1
0
0 0

HP 3000 micro GX with MPE/V OS. need tape

by ss＠allegro.com

Hi, Where are you located? Can you use DDS (DAT) media? I'm one of the "too busy" people, but perhaps I can get some time in between now and the New Year. On Dec 17, 2009, at 9:45 PM, g-wright at att.net wrote: > I'm back to try this again. I need a boot tape for a HP 3000 > Micro GX machine. Does anyone have a working machine > or a tape. I can use almost any media. I had 2 list members > say they would help but they seem to be too busy and its > been 6 months. I would really like to get this going. > > Thanks, Jerry > g-wright at att.net >

16 years, 8 months

1
0
0 0

MDS Series IV schematics on line

by aek＠bitsavers.org

under http://bitsavers.org/pdf/intel/MDS4 thanks to Bob R. for the loan of the originals still looking for a couple of other multibus hardware manuals isbc286/10, 386, 486S, 214, 215, 221 disk, 550,552 ethernet nj

16 years, 8 months

1
0
0 0

Hackable DVD players (was Re: Amiga Demo's)

by ethan.dicks＠gmail.com

On 12/14/09, Alexandre Souza - Listas <pu1bzz.listas at gmail.com> wrote: > Tony Duell wrote: >> I suspect such players are too expenice _new_ for me even to consider >> buying, and contain suffieicently complex custom ICs that it's a bad idea >> to buy one for which manufacuters spares are no longer available. > > Want something hackable? Look for an AP660 from Apex. No service manual > but full listing of the ROM :oD I have one of those. Unlike most cheap-o consumer devices, there _is_ detailed internals data available - detailed enough to retool the firmware. It's not full circuit diagrams and datasheets, but from the software side of things, much, much better than most devices. It also has a bog-standard IDE DVD transport, unlike less expensive devices. That's the model I was contemplating mounting the IDE-CF rig on for the Click! experiment (since I already have some 3.5"-drive-bay-PCMCIA adapter frames on hand). My main AP660 is on the fritz right now, but it's probably PSU issues. Fortunately, I have a parts unit I can use to verify that everything else is good with. I've had one since it was new and been very happy with it. -ethan

16 years, 8 months

10
17
0 0

Burroughs B5500 and successors (Was: Happy DEC-20 Day!)

by alanp＠snowmoose.com

> > From: Ben <bfranchuk at jetnet.ab.ca> > >> Because the Burroughs B5500 and B6700 computers used a word >> containing 48 bits of data, but also extra bits that described the >> type of the data which played an important role in programming the >> machine, I would consider that series sufficiently out-of-the- >> ordinary to attempt to discuss here; This also included the Burroughs/Unisys A-series systems that were made into the early 90s. The A-series systems used a 52-bit, tagged word. 1 bit of parity, 3 bits of tag and 48 bits of data. I don't recall how the addressing worked and Al has my papers on the architecture, so I can't look it up ... alan

16 years, 8 months

1
0
0 0

Running Computers Cold

by ethan.dicks＠gmail.com

On 12/9/09, Zane H. Healy <healyzh at aracnet.com> wrote: > At 9:55 PM -0800 12/8/09, Chuck Guzis wrote: >>On 8 Dec 2009 at 21:19, Zane H. Healy wrote: >> >>> Okay, this is the first time I've ever had to worry about this. When >>> is it to cold to run a computer? It's 35F out in the garage, and it >>> is supposed to get a lot colder tonight. I just shut the dehumidifier >>> down (to cold to run it) and setup a heater near the computers (and >>> other stuff I don't want to freeze). >> >>It seems to me that Ethan would be the perfect one to answer this. >>35F is probably a heat wave at the South Pole. > > Except I don't think they run their computers outdoors! :-) But we do use outside air to cool them. It's free except for the power to push it around. (Oh... and +35F is never seen at the Pole - the record is +7.5F, and I've personally been around for +7.0F). As for the extreme case, we've had computers malfunction when outside access doors were left open and -80F air came in directly, bypassing the blowers and the louvers. On a day-to-day basis, the room with the 14 racks that was AMANDA (it was shut down earlier this year after a 10+ year run) shed about 35-40kW of heat with indirect access to outside air with some measure of automatic and manual thermal controls (covering up open cable panels and stuffing blankets in hatches in addition to thermostatic controls on air blowers). If we let the room get over about +55F, the high-voltage supplies for the photomultipler tubes would go into thermal shutdown (ultra-dry air at 650millibars doesn't have much heat capacity). OTOH, and more to the point, if we let the room get much colder than about +35F (say +25F or colder), a specific rack of digital hardware that was adjacent to the floor vents feeding cold air to the high voltage supplies would malfunction until the temp came up to the high thirties to low forties. In another location entirely, central Ohio, I used to rent the basement of my mother's typing and typesetting shop. The building was a late 19th C/early 20th C brick "shotgun" commercial space with a former storm-cellar-type access to the basement. As such, cold air poured from the modern back door, down the basement stairs, and into the space I ran PDP-8s, PDP-11s and a VAX-11/730. One of my jobs at the time was hacking PDP-11 assembler on an 11/23. The basement would routinely get to +40F, and sometimes colder if the wind was from the right direction (the water pipes had electric wraps). I couldn't personally stand to work in that environment without a heater pointed at me, but the computers ran fine. The lone device that had problems was an LA-180 printer I used for listings. It worked down to about +45F, but colder than that, I speculate that the rail lubricant got too viscous, because it would blow carriage motor fuses until it warmed up. I quickly learned not to print on cold nights. I'd say that if you keep things at or above freezing, you are probably perfectly fine. Magnetic media is a lot more sensitive than ICs in terms of cold soaking. One thing to watch for is to not power up cold-soaked electronics. The current inrush is likely to blow ICs (the internal bonded wires between the die and the frame, mostly). I've thawed machines that were left in unheated buildings over the winter at McMurdo - ordinary temps around -45F or so. Specifically in that case (ultra cold, powered off), there are known and published "max rates of rise" of temps to minimize the risk of permanent damage >from thermal expansion. A good rule of thumb is about 2-3 degrees per hour. What I did with the cold-soaked computers was to throw them into a lab freezer at -40F for a few hours, then into a lab environmental chamber at -30F that I would tweak up about 5 degrees every couple of hours. When the chamber was up to about +20F, I threw the equipment in a lab refrigerator. The thaw process took two workdays, but 100% of what I treated that way survived (no hard disk - these were floppy-booting diskless PCs that ran from a Novell server). If it gets really cold (+0F, say), I'd bring the disks in the house and leave the CPUs powered off until the garage temps are back around +32F. ICs can be stored down to -40 typically, but not operated at those temps (and especially not put through a power-on cycle at those temps). So that's my experience and observations of cold and computers. Take away from it what you will. -ethan

16 years, 8 months

25
57
0 0

Happy DEC-20 Day!

by RichA＠vulcan.com

Long live the system that is a major improvement on its successors! Rich Alderson Vintage Computing Server Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at livingcomputermuseum.org http://www.pdpplanet.org/ http://www.livingcomputermuseum.org/

16 years, 8 months

5
7
0 0

paper tapes

by aek＠bitsavers.org

did anyone on the list buy these http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220526045578 i'm curious what the interest was

16 years, 8 months

1
0
0 0

need specs for mag DJ920

by brianlanning＠gmail.com

I just got the monitor for free from craigs list. (and a lead on possible other equipment) Does anyone have the specs for this monitor? Google searches have been fruitless.

16 years, 8 months

1
0
0 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb