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

by dburrows＠netpath.net

The high voltage spike created when the magnetic field colaspes. AKA Reverse EMF pulse. You need a very large coil or the secondary of a 30kv+ transformer. >How _does_ that work? >>I still laugh thinking about the people that tried to figure out how they >>were getting shocked when they let go of the doornob not when they >>initially touched it. >>Dan >> >

27 years, 7 months

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Compaq SLT/286

by kurtkilg＠geocities.com

Yes! I admit it! I use Outlook Express which is why I messed up so many times! If only I used PINE *sob*sob* I'm ruined!!! >OK, Max, so now we know you can't tell a joke and that you're really >a woman. Is there anything you'd like to tell us? > >-- Doug >

27 years, 7 months

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Compaq SLT/286

by kurtkilg＠geocities.com

Yes! I admit it! I use Outlook Express! That's why I messed up _two_ times! >woman. Is there anything you'd like to tell us? > >-- Doug >

27 years, 7 months

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Compaq SLT/286

by kurtkilg＠geocities.com

And now I messed up again by sending my apology from the wrong email account :(

27 years, 7 months

1
0
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Compaq SLT/286

by max82＠surfree.com

And now I messed up again by sending my apology from the wrong email account :(

27 years, 7 months

2
1
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Cipher 9-tracks

by rexstout＠uswest.net

Got two of them. One of them is an IBM 4968, not terribly difficult to figure out. But the other one has me stumped. Model number 0920940-98-125OU, I'm not sure if that means it's a 920 or a 940... Part number 155000-103, Option B. Found some spare parts lists at www.4cipher.com that seem to match, but they don't have much info. And I thought I would come here to the list before bothering their sales department(only email address I could find), as they rarely know much of anything that isn't in production... -------------------------------------------------------------- | http://members.tripod.com/~jrollins/index.html - Computers | | http://www.geocities.com/Area51/Lair/1681/ - Star Trek | | orham(a)qth.net list admin KD7BCY | | ham-mac(a)qth.net Portland, OR | --------------------------------------------------------------

27 years, 7 months

1
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DG Aviion video

by kurtkilg＠geocities.com

How _does_ that work? >I still laugh thinking about the people that tried to figure out how they >were getting shocked when they let go of the doornob not when they >initially touched it. >Dan >

27 years, 7 months

1
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RL01/02 and RK06/07 terminators

by cfandt＠netsync.net

Question: Are the terminators for the RL and RK drives the same? No part number on outside of any of the three terminators I have on hand. One was found on an RK07 another on an RL01. All three have a Cermet network with 40 leads connecting to each connector pin. The P/N on each Cermet network is 13-13242. Just trying to make sure as I'm trying to get an RK07 running w/11/34A an RL02 w/11/24 and neither disk is accessed by its processor. Yes, the cables are sorted out as to whether they're an RK or an RL type. Thanks for the info. Regards, Chris -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.ggw.org/freenet/a/awa/

27 years, 7 months

2
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On topic: Serious static problem

by jfoust＠threedee.com

At 11:12 AM 12/4/98 -0800, Aaron Christopher Finney wrote: >This is giving me fits. There's something strange with my minivan, that it >generates a *ton* of static electricity whenever I drive even a few >blocks. I seem to remember reading about this - perhaps in the "Straight Dope". A quick www.dejanews.com search led me to a Toyota FAQ that confirmed what I remembered. Newer "low rolling resistance" tires don't contain as much carbon black as they once did, which makes them more of an insulator, which means as they turn they're picking up a charge relative to ground. Other articles I saw mentioned this was a problem with AM radio reception, causing sparks as the charge dissipated as you drove, and for toll booth operators you'd touch during a drive. Click and Clack wrote about it at <http://cartalk.cars.com/Columns/CC/CC7147TXT.html> Strangely, I also found an article about the magnetic fields generated by rolling tires: <http://www.microwavenews.com/3-98story4.html> - John

27 years, 7 months

1
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System/23???

by rhblake＠bigfoot.com

Ok here's one for all those of you familiar with the older IBM iron. I have just fallen into a unit that looks much like a TRS-80 model 3 or 4 (all in one in other words) that has two 8" floppies, a CRT, built on keyboard. It says it's a model 5322 and the face says it's a System/23 unit. This is before my time I'm sure (my time in messing with pooters). It has a 9 pin d-sub with a jumper loop on back and then further up the back it has another, but open, 9 pin female d-sub. Token ring maybe, or where a twinax adapter might go? Whatever info you have would be great, and if anyone has an interest in this heavy bugger let me know. I haven't even powered it up yet but it does have an original IBM floppy in it, not even sure if it's a boot disk or not. I have a weird feeling it's a wordprocessing terminal. It even has a keyboard overlay that sits above the keys. Russ Blakeman Harned, KY

27 years, 7 months

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FORSALE: uVaxes,Monitors,Keyboards,DG Aviions + FREE STUFF

by Dean.Nelson＠lmco.com

Classic Computer People! Since I think this stuff is neat, I will only send this to ClassicCmp and Port-Vax lists. I need to get rid of this stuff. I will take bids on this stuff until Friday(12/4/98). If this stuff does not sell by Friday, I'll try to sell it at the swap meet Saturday ;-) Buyer assumes the shipping costs from Las Vegas, Nevada, USA. Thanks Dean Nelson Assemble my addresses from the lines below For any Questions during the day: Dean dot Nelson at LMCO dot COM To send a bid or questions: DeanNelson at AOL dot Com (Yes, I get tons of crap mail, so please mention something sane in the subject ;-) ) ------------------------------------- MICRO VAXES ----------- VaxStation 3100 M76, 32MB Ram (Model VS43A-CY) CPU: KA43-A Disks: RZ23-E (104MB), RX23-AA(floppy) OS: None, main boot disk was removed, still has the RZ23 Weight: 25 lbs Vax Server 3100, 16MB Ram (Model DJ-31ESA-A-A01) CPU: KA41-E Disks: RZ24 (209MB) Tape: TZ30 OS: VMS 5.5-2, No License Weight: 36 Lbs MicroVax 3100-40, 16MB Ram ( Model 450ZM-B9-A01) CPU:KA45-A Disks: RZ25 (426MB) Tape: TZ30 OS: VMS 5.5-2 (No License) Weight: 38 lbs ------------------------- MONITORS -------- Two of these: DEC 19" Monitor - Model VR299-DA Weight: 75 lbs One - Data General 17" Monitor Trinitron Model - GDM-1601 (RGB+H+V) ------------------------- KEYBOARDS --------- Eight of these: DEC LK201 keyboards I haven't tried out any of these. --------------------------- DG AVIIONs ---------- Two of these: Data General Aviion Model AV 410 CPU: Dual 88K, 20Mhz processors Memory: 64mb Disks: 1Gb SCSI, CDROM, Floppy Graphics: 8 plane RGB OS: DG/UX (no license) Weight: 65 lbs One of these boots to DG/UX the other one boots to a hardware prompt which I assume is trying to boot from the Net --------------------------------------------------------------- FREE STUFF (you just pay the shipping) Dont know if any of this works. --------------- Core Intl Hard Drive Model: AT72 (72MB, AT Hard drive type 105) I think this is an MFM style drive Two of these: 19" rack mount hard drive enclosures with power supplies One of these: Desktop hard drive chassis for two+ full height drives. Some other communication stuff: two V.35 comm hub (I think thats what it is) 19" Modem rack with 8 modems (2400 baud)

27 years, 7 months

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Mac IIci cache cards

by george＠racsys.rt.rain.com

Greetings, I could use two and would be glad to pay shipping.... Shipping would be to Beaverton Oregon (97007). George Rachor ========================================================= George L. Rachor george(a)racsys.rt.rain.com Beaverton, Oregon http://racsys.rt.rain.com KD7DCX On Fri, 4 Jan 1980, Eric wrote: > have a pile of mac IIci cache cards, if interested email. have no use > for them. > > -Eric > > > > > >2) Since I don't have a DayStar card, what else (if anything) can I > > > do with the adapter? Can I plug in a IIci cache card? > > > >

27 years, 7 months

1
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Old 386 and 486 pc's

by SUPRDAVE＠aol.com

harrumph; typical clueless non-computer type that thinks any old computer is worth plenty. there's a guy at an established flea market that tries to get the same price out of old machines. i bought a northgate 386/20 from a guy at work and even got the great northgate keyboard too for only $20! heh, you oughta go back to the guy and ask him if he'd be willing to buy comparable 386 and 486 models for half his asking price. i could find some pretty cheap machines and make profit off him! In a message dated 11/21/98 8:25:08 PM US Eastern Standard Time, transit(a)primenet.com writes: > They had a no-name 386 clone, complete with color monitor, in working > condition for $175, and a 486, no monitor, unknown condition (most likely > working though) for $250. > > Seemed very high to me, as I've picked up working 8080 PC's and XT's for > under $20. . . > > (They did also have an old Mac 128, but I didn't inquire about it, as > those are not exactly rare either) >

27 years, 7 months

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OT: Jokes was Re: DG Aviion video

by dburrows＠netpath.net

>> Like tossing charged capacitors across the room to them? >> Or hooking a LARGE choke and a battery to a doorknob? >> I would never do such a thing.:) >> Dan > >Cough... sputter... > >Now look what you did! I almost shot Coke out my nose! >I once fell victim to the charged cap trick, but it's >still funny. > Watching people's reaction with the choke is much more fun. They get shocked when they let go not when they are holding it. Dan

27 years, 7 months

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Someone with an RL02 needed.

by DSEAGRAV＠toad.xkl.com

I started diggin thru the tapes I got from knox, maybe one of them was a backup of RSTS. Found one. The gotcha - It'll only extract to an RL02. So, anyone got a PDP-11 with an RL02 and a TS tape? I need someone to extract the tape for me, and shove it on a disk image like the ones E11 takes. I should be able to unscrew myself from there. -------

27 years, 7 months

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DG Aviion video

by cswiger＠wilma.widomaker.com

>> I've had to explain what 'out of paper' means on a printer. And then >> had to explain why a printer needs paper (!). > >Yeah, why does a printer need paper? Talk about an inefficient process: >plant seeds, nurture for 20 years, chop down tree, grind to a pulp, form If our office ever runs out of paper in an emergency we just have the office across town fax over a few blank sheets. Chuck cswiger(a)widomaker.com

27 years, 7 months

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Any Zilog 8000 collectors out there.

by Innfogra＠aol.com

While rummaging through the back corner of the whse I stumbled across a bare Zilog 8000 card cage with a full complement of cards. Circa 1983 Mfg. Every slot full. This would be a great backup card set or a way to get a non-working Zilog up and running. I also have an extra memory card beyond that. I also discovered a Daisy Logician Card Multibus cage and cards also. I doubt anyone is collecting these though. If interested please reply to whoagiii(a)aol.com directly. Thanks for the list, Paxton

27 years, 7 months

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SUBSCRIBE CLASSICCMP

by neil＠goodnet.com

27 years, 7 months

9
17
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DG Aviion video

by dburrows＠netpath.net

>Calls to mind leaving silly messages on the dot-matrix LED display of an >HP LaserJet 4 printer... some of my favourites to leave were: > >"17 COLON BLOCKED" (17 was the error code with no error associated) >"INSERT 25 CENTS" >"WARP CORE BREACH" > >Colon blocked turned out to be too plausible, though, and people ended up >coming to me with very concerned expressions. Oh well. > Looks like you like to play tricks on users as well. I used to send "FATAL SYSTEM CRASH" on networked PDP11's, VAXstations and Alphastations. It is amazing the panic that things like that will create. Not to mention the "Virus" messages to opa0: on April 1. Dan

27 years, 7 months

2
1
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System 36 Peripheral - Heads up

by jeff.kaneko＠juno.com

Guys: This was posted to the NG a week ago-- DOn't know if he still has it. COntact this guy directly . . . . . ********************************************** From: user643249(a)aol.com (User643249) Newsgroups: misc.forsale.computers.storage Subject: IBM System 36 (50 lb) HD FS Lines: 15 NNTP-Posting-Host: ladder03.news.aol.com X-Admin: news(a)aol.com Date: 25 Nov 1998 13:58:28 GMT Organization: AOL http://www.aol.com Message-ID: <19981125085828.10541.00000420(a)ng-ce1.aol.com> Xref: Sn misc.forsale.computers.storage:96713 IBM System 36 HDD , 27 MEG About the size of a tower system and three times as heavy. It does have a clear cover over the heads and disks so they can be observed in operation- if you can get it working which was no mean feat and required a system 36 as the interface is proprietary. It's also missing the drive belt between the auto starter size electrical motor and the pulley/axle of the disks - but an auto fan belt should be about the right size. If you have a use (ie. display , teaching aid, etc) for it let me know - shortly.. ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 7 months

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DG Aviion video

by zmerch＠30below.com

Once upon a midnight dreary, R. Stricklin (kjaeros) had spoken clearly: >On Wed, 2 Dec 1998, Tony Duell wrote: > >> If the RTC chip is much taller than the other chips on the mainboard (say >> about 3/8" high) then it probably contains an internal battery. Dallas >> and Mostek/SGS-Thomson made chips like that. > >It is. I forget offhand who made it, though. Would it be powering the >NVRAM, though? On a SPARCstation you actually have to replace the NVRAM >chip itself. I guess it couldn't hurt to try to replace it. If the markings are for a Dallas 12887(a) then the NVRAM is integrated with the clock chip & battery. To my knowledge, the closest person to being world-famous for changing a Dallas battery would be Dr. Marty Goodman, of CoCo fame. IIRC, he's a member of a mailing list gatewayed to the newsgroup bit.listserv.coco, so if you send a message there, he should eventually get it (along with everyone else on the gatewayed list, so pose it as a CoCo-ish question... tho CoCoists (IMHO) aren't quite as rabid as some other platform gurus...) >> You're supposed to replace the chip when the battery fails (after about >> 10 years). I have heard of people carefully slicing the top off the >> package and replacing the lithium cell inside, but I've not had to do >> this myself - yet. If it is a Dallas 12887 (without the "A" suffix), I can tell you this: beware of the Dallas 12887. The 12887 has one shortcoming: the NVRAM *cannot* be reset via external means, which means if whatever machine has fouled the NVRAM so badly it can't boot, it'll *never* boot again without replacing the chip itself. Some PC's used this chip, and said machines are a thorn-in-the-side when their NVRAM settings go haywire. IIRC, the Dallas 12887A is pin compatible, and *does* have an NVRAM reset pin... I also know that you can get all the pin info & other stuff from Dallas's website, which is slightly confusing at: http://www.dalsemi.com/ Watch out, tho: All their datasheets are in PDF format, so you'll want to grab Adobe's Acrobat reader to view the sheets with. The page with all of their PDF's for their chips is: http://www.dalsemi.com/DocControl/PDFs/pdfindex.html Hope this helps, Roger "Merch" Merchberger

27 years, 7 months

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Call for final Elf99 design input

by dcoward＠pressstart.com

Ethan Dicks said: >I am cranking along with the capture of the Elf99 design .... I just found this thread. This is a great idea and should have been tried sooner. I'll buy one. >Did I miss anything? Any other suggestions? The only thing I see missing is the expansion bus connector. (Did I miss that part?) There are hundreds of things that would be nice to have, but it's important that the design be finished and the boards made. Leave the bells and whistles to the end users. If you create an Elf that can address about 2K, has a small prototype area, and has a good expansion bus, then all things are possible. (Including S-100 interface) You should copy one of the two Super Elf buses. > A protoyping area of .1" spaced plated-through holes, nominally > a few inches long by one or two inches wide. A prototype area should be for wirewrapping. I don't see any need for plated-through holes, and pads are not REALLY necessary either. >I will not be including space >for an 1861 because I have been entirely unable to locate a source. The 1861 should be easy to add on later. In the prototype area or hot melted to the top of another chip. Just make sure it's easy to cut the trace for the original clock circuit and wire in the new one. >Ooh. What a concept. I know there is a CHIP-8 emulator page out there. >Perhaps there is a source version of the interpreter floating around. I think there is a source code listing in Paul Moews book on Elf interpreters. ========================================= Doug Coward Press Start Inc. Sunnyvale,CA =========================================

27 years, 7 months

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Call for final Elf99 design input

by allisonp＠world.std.com

The key to the elf design was minimalism and low cost. Substituting a latch and LEDs for a binary display instead of the til311 is cheaper and more buildable. using modern cmos and rams help. The basic elf was far to minimal and frequently expanded to get desired functions. The basic design did not easily permit that as it didn't decode memory or IO addresses. The RCA VIP or the 18S020 Evaluation board allowed far more flexibility with relatively little more logic. Thei cost was they had some rom. The 18S020 board was 4k ram (1822s), two 1852 as parallel io ports, UT4 monitor rom (512bytes) and another 32bytes for monitor storage. It used Q and EF3 for TTY/RS232 and the bus was available with numerous decodes at the edge connector. It also had LEDs for data, address and processor status lines (binary). This is a reproducable design. UT4 fits in 512byts of a 2716, the rest of the ram can be done with byte wide parts. The 1852s can be kept and the rest were common 40xx series. With 4k of ram and UT4 (or similar) programs like PILOT, TinyBasic, or some of the other neat software with a terminal. A much simplifed machine using 1802, 2 1852, 2 4028, 2 4042, 1 62256, 1 2716 and 1 6116, some glue logic for reset, run, runp and the same serial scheme as 18S020 would give 32k of contigious ram, 2k-32byts in the >8000h area and the remaining 1.5k in the 2716 could hold any number of things along with the .5k ut4 monitor. This would be a very useful system that could accomodate expansion for IO (more ram??????). Allison

27 years, 7 months

2
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Auction Results, Birman's, ???

by Innfogra＠aol.com

Did anyone go to the Birman's Diversified Auction, I think on Tuesday, to see what VAX stuff was there? I am interested in how the sale went and what kind of prices things brought. Please reply to me at Whoagiii(a)aol.com. Thanks, Paxton

27 years, 7 months

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Any collectors in Minneapolis?

by John.Dykstra.jdykstra＠nt.com

>I constantly drool over stuff that's in the Charles Babbage Institute's >archives, but I don't get to Minneapolis very often (OK, I *never* get to >Minneapolis). > >Are there any Minneapolitans (?) out there willing to copy a few goodies >from their archives? I'd pay for copying, shipping, gas, and probably a >coupla bucks more. I can't volunteer, since I'm usually working during the hours the Institute office is open. Anyone thinking of dropping in on the Institute should be aware that their building will be extensively renovated during 1999-2000. Accordingly, they will be in temporary quarters for quite a while, and I suspect much of the collection will be inaccessible during that time. For those unfamiliar with the Babbage Institute, they have a fair amount of material available at <http://www.cbi.umn.edu/>. >(besides, what else are you going to do when it's snowing >out?). That's never a problem. I'm always figuring I'll get projects done "during the winter," and I rarely get done with more than a handful of them. :-{ ---- John Dykstra jdykstra(a)nortelnetworks.com Principal Software Architect voice: +1 651 415-1604 Nortel Networks fax: +1 612 932-8549

27 years, 7 months

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OK, I'm stuck. I need a RSTS tape.

by DSEAGRAV＠toad.xkl.com

I think INIT's corrupt. Specifically, SAVRES. I'm trying to shove the RA81 on a tape. I say SAVRES, from DU0: to MS0:, and it says INITIALIZING FIRST SAVE SET or something along those lines, shoves the tape around for about 45 minutes, then says STARTING SAVE FROM DU0: TO MS0: AT XX:XX AM (or something similar) and hangs there (not doing anything) for a few minutes, after which it traps through 10. (Illegal Instruction, I think...) Does anyone have a RSTS 8.0-07 tape I can suck just INIT off of? Is there any way to do this under timesharing? I don't have BACKUP... Seems someone's removed that too. -------

27 years, 7 months

1
0
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Model II software...

by ArfonRG＠Texas.Net

Hey guys..... I have a bunch of TRS-80 Model II 8" software discs with original programs on them..... Anyone have a clue as to how to Archive them????? "Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." -- Rich Cook

27 years, 7 months

3
3
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Audio Cassette formats; Copy protection?

by foxnhare＠goldrush.com

> From: Philip.Belben(a)pgen.com > Subject: Re: Audio Cassette formats; Copy protection? > > >::There are plenty of ways of preventing a BASIC program from being > listed. > >::Dunno how you prevent it being saved (and say 'BAD PROGRAM'), but I > could > >::probably figure it out given time... Anyone else? The popular (quick) way was to put an RTS in the second cassette buffer with a SYS in the code pointing to it. (on the PET) and save the program from that to the end using the MLM. Then if someone SAVEs it regular and tries it it just crashes. The most ingenious PET protection was to put a bit of code in the FIRST cassette buffer, so you had to save it from the second cassette port using the MLM to make a runnable copy. Second would be to plug a bit of code into the chargot (I think) routine in low memory which will trick the computer in running the program once loaded (this could easily be bypassed on the PET, but on the 64, it was pretty fool-proof. On the 64 if you can get to the vectors before the user can try SAVing, you change the jump address for SAVE (locations 818,819) to your own location. > > On the 64, you could type > > > > 10 remL > > > > (rem, then a shifted-L) > > > > and LIST will stop up with a ?SYNTAX ERROR when it hits that line. > Rather > > easy to defeat but annoying as heck. :-) > > Same on Basic 2 PETS. On BASIC 1 you used shift-K. The character varys on the computer. I think Transactor or Compute did a table of em once. > Possibility that I thought of, but didn't try. Make the initial line a v. > high line number (>63999). Have the program start rem L, then disable the > stop key, then poke that line number to something smaller. Bit harder to > defeat but won't deter the determined cracker. > > Mean trick I did use. In the middle of a subroutine I entered the line > > REM@TURN > > I then found the @ sign and poked the location with 20 (ctrl-T, the PET > backspace) > > This now lists as RETURN but does nothing... So was this to twart those modifying the code, or tracing it?... Oh... add a REM shift-l after it, once the 'fix' it it still doesn't work. Only problem with the delete character is if you list to a printer they will all show up. > > Philip. That same PET program had an ingenious listing protection too, the first two lines were only listable and they were effectively masked by rems with a bunch of delete characters. What the programmer did was break the line links after the second line so the computer thought it was a two line program. But when run the two lines restored the link via POKEs, once it was running past that point, it restored the line break. If you are curious to see this marvel in action it is on-line; check out my Flash Attack page and download either of the PET versions, this was written by Tim Stryker years before he founded Galacticomm.

27 years, 7 months

2
1
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Barely on-topic

by roblwill＠usaor.net

Hi! Anyone have a hard drive controller for a Tandy 1400HD laptop that they'd want to sell? The one in mind recently died, and when I turn it on, all I get is a blue screen. I disconnect the HD, it starts to boot (BIOS number comes up), then stops, and starts emitting a fish-like smell. I pull the controller entirely, and it works fine (with no fish smell). Any suggestions (other than getting one from RadioShack)? ThAnX, -- -Jason Willgruber (roblwill(a)usaor.net) ICQ#: 1730318 <http://members.tripod.com/general_1>

27 years, 7 months

7
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Recent Finds & Thoughts

by Philip.Belben＠pgen.com

>> Possibly. But I distinctly recall that when we recorded tapes for sale >> using the tape deck from my Sanyo stereo (not on a PET BTW - this was a BBC >> micro) we found that Dolby noise reduction had to be disabled for it to >> work... > > Did you try recroding with Dolby and then replaying on a machine with > Dolby noise reduction (turned on), or replaying on the normal cheap > cassette recorder that you use with computers? If the former, then I am > not suprised it didn't work - the frequency response would have been > rather odd. The latter should have worked, though. We didn't try recording with Dolby and playing back without. I'd be very surprised if that worked (did you mean it that way round). I can't remember if we recorded with and played back with - I imagine that would work - but we definitely couldn't get it to work recording without and playing back with, although this actually works quite well for music. > I would be suprised if you couldn't make a CD that could be loaded. I > can't try it because I have no way of writing to a CD. I never meant to imply that you couldn't make a CD that could be loaded. What I meant was you probably have to be more sophisticated than old cassette -> digitised audio -> audio CD. I'd recommend old cassette -> signal restoration -> digital signal (0s and 1s sampled at some highish speed) -> possibly prefilter to pre-emptively undo the CD player's output filter -> digitised audio -> audio CD. For PET (and family) tapes a C2N would probably make a good cassette machine for playing it initially, since it does some of the signal restoration itself. Philip.

27 years, 7 months

6
5
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Compaq SLT/286

by fauradon＠pclink.com

Have you looked there? http://www.compaq.com/support/portables/out_of_production/SLT286.html Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon/ >I recently picked up a Compaq SLT/286 and would like to purchase any >documentation for it. Anybody have docs for a reasonable price? >Thanks, >Richard Hall

27 years, 7 months

1
0
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Altair 8800b Front Panel

by neil＠goodnet.com

For sale at ebay.com: Altair - 8800b Front Panel - S100 - (PICS) Item #45501676 http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=45501676 Neil B. Sheldon Sr. Sr. Engineering Technician neil(a)goodnet.com

27 years, 7 months

1
0
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DG Aviion video

by pnt＠minster.cs.york.ac.uk

Eric Smith <eric(a)brouhaha.com> wrote: > It's really aggravating that not only do most semiconductor vendors not > have data on their old products on line, but not even a listing with a > one line description. Actually, quite a lot of them do have info (if sometimes well hidden) but some -- Intel comes to mind -- aren't very good about keeping old stuff, and Toshiba are pretty hopeless. I needed some other info from the same data book that those EPROMs are in, a few years ago, and ended up phoning Toshiba to get it. Turns out they stopped making EPROMs about a year before, and no longer had the data sheets themselves! Luckily one particularly helpful customer support person found me what appeared to be the last copy of the Data Book. I was very glad I checked, because there are two common pinouts for EPROMs in that sort of size range. Most manufacturers distinguish them by either using the last four digits in the form "1024" or "1000", or they use "1001" versus "1000". Except Toshiba -- where others used "1000" they used "1001" and vice-versa. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 7 months

1
0
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DG Aviion video

by pete＠dunnington.u-net.com

On Dec 3, 6:15, Eric Smith wrote: > Are you sure that's not a TC571000? I thought the TC54xxx parts were usually > DRAMs, which wouldn't have a VPP. No, 57xxxx is stadard EPROM, 54xxxx is one-time PROM. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 7 months

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3M silentwriter model 1483?

by pete＠dunnington.u-net.com

On Dec 2, 21:45, Sam Ismail wrote: > Subject: Re: 3M silentwriter model 1483? > On Wed, 2 Dec 1998 cdrmool(a)interlog.com wrote: > > > Anyone know the story behind this? Its a small keyboard connected to a > > small thermal paper printer. It has an old 70's style phone jack > > (at least the kind we used in Ontario Canada) coming out the back of the > > printer. My father who found it says he thinks its one of the early > > devices used by the deaf. I think it was probably just a simple > > terminal. > > Does this have a light brown and white motif? Keys are brown? I have a > picture of this in a data processing book I just picked up that shows a > woman typing on it. She doesn't look blind. There's also an acoustically > coupled modem attached with a phone handset plug into it. They were quite popular in the late 70's/early 80's as dial-up terminals in places like libraries. Ours had one to access the Dialog database. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 7 months

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DG Aviion video

by pete＠dunnington.u-net.com

On Dec 3, 0:15, R. Stricklin (kjaeros) wrote: > Here are the two likely candidates: > > (date code) > ST 99045 > MK48T02B-15 > TIMEKEEPER (tm) RAM > DO NOT DISPOSE IN FIRE That's the same NVRAM/clock chip with built-in lithium battery that was used in several Sun Sparcstations. The Sun hardware FAQ has lots of information on replacing them with the Dallas equivalent, and has information (and pointers to other docs) about opening it up to get at the battery if you want to try using an external battery. > TOSHIBA Japan > TC541000P-15 > VPP 12.5V (date code) That's the same EPROM used by Sparcstations as the boot ROM. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 7 months

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Dec RC25 offered

by Innfogra＠aol.com

I have a Dec RC25-AA Rev C1 with one RC25K-DC disk pack that I am listing on the DDA Tradeloop mailer. It is a desktop disk subsystem with a 26 Mb fixed disk and a 26 Mb. removable cartridge disk. It is in good condition. with one disk pack and the Users Guide. It connects to a KLESI controller, either Unibus or Qbus, which I do not have. I am open to all offers. Shipping weight will be about 70 pounds. Please reply to whoagiii(a)aol.com Thanks, Paxton Hoag Portland, Oregon

27 years, 7 months

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3M silentwriter model 1483?

by cdrmool＠interlog.com

Anyone know the story behind this? Its a small keyboard connected to a small thermal paper printer. It has an old 70's style phone jack (at least the kind we used in Ontario Canada) coming out the back of the printer. My father who found it says he thinks its one of the early devices used by the deaf. I think it was probably just a simple terminal. Whose right? who gets to carve the christmas turkey this year? colan

27 years, 7 months

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VAX collectors attention

by CLASSICCMP＠trailing-edge.com

>IIRC, it's actaully a PDP-11 and the OS is a munged version of RT-11. The filesystem it uses on TU58's is the same as RT-11's filesystem. That doesn't mean it's running RT-11 :-). A VAX-11/780 has an LSI-11 as the console processor, it uses the RT-11 filesystem on the boot floppies, and that doesn't mean it's running RT-11 :-). On the other hand, VAX 8600 series CPU's use a PRO 380 console running an operating system that *is* derived from RT-11. (The VENUS conditionals still abound in the RT-11 sources, even though AFAIK a build hasn't been done in over a decade.) -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 7 months

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Now VERY *OT* (hit delete now): RE: networking newbie

by allisonp＠world.std.com

< > costs. The user base however could never work with linux(unix). < < How wrong you are, Allison. How wrong you are. < < My friend is running Linux on his home PC, but if you didn't know any < better (and if you didn't look close enough) you'd swear he was running < Windows 95. The fact is that his desktop might as well BE Win95, becaus < it is stolen from the look & feel of Win95. Its called the Star Office Will it run paradox for windows, does the email work like outlook? Does netscapr for linux look and feel like the windorers version? I understand this user base was slow to accept and use computers. It's important as *I* support the user base, maintain the systems and create (or install) new applications and train the users, not *we*. It's not a rant on linux, The comments I made were to the effect of being impartial. If I had my way they'd be on OpenVMS. < Suite. Find yourself a copy and install it on your Linux box. You'll How much? Reply off line on this. < never boot Win95 again. You'll never need to. I never boot it here but work is a different case. Allison

27 years, 7 months

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Osborne for sale (fwd)

by siconic＠jasmine.psyber.com

Please reply to the original sender if interested. Reply-to: siiqa(a)earthlink.net Sellam Alternate e-mail: dastar(a)verio.com ------------------------------------------------------------------------------- Always being hassled by the man. Coming in 1999: Vintage Computer Festival 3.0! See http://www.vintage.org/vcf for details [Last web page update: 11/02/98] ---------- Forwarded message ---------- Date: Wed, 2 Dec 1998 09:55:10 -0600 From: Russ McDonald <siiqa(a)earthlink.net> To: "'vcf(a)vintage.org'" <vcf(a)vintage.org> Subject: Osborne for sale Dear sir: I have Osborne 1 with all documentation including Personal Pearl, Word Sar, Supercalc, Dbase 2 . Machine still runs and is in excellent shape, that I would like to sell. Russ McDonald rmac(a)mitec.net

27 years, 7 months

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Wanted -- Apple IIGS keys

by manney＠lrbcg.com

Did you ever dig out the right arrow keycap? Thanks manney >Yeah, it would. I have my old GS keyboard that's suspiciously dead (I think it >was christened by the cat) if all you need is keycaps. >-- >Jim Strickland >jim(a)DIESPAMMERSCUMcalico.litterbox.com >----------------------------------------------------------------------- >Vote Meadocrat! Bill and Opus in 2000 - Who ELSE is there? >----------------------------------------------------------------------- >

27 years, 7 months

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Now VERY *OT* (hit delete now): RE: networking newbie

by allisonp＠world.std.com

< There really isn't a good "open source" GUI alternative to Windows yet, < the best approach for now is to emulate the Win32 API on top of Linux t And when there is MS will change the API. < But, you're right, I find it much easier to sneak Linux into the server < side of a corporation than into the client/desktop side. Maybe if Java < performance and look+feel improve another order of magnitude, that won' < be as much of an issue. there is potential there but only if none of the apps used run on the server. It'd be easy to put a linux box online as a data sink. I may do it unofficially and try it before trying to migrate anything from the general user community. Oh, what I run on "my" desk is up to me but for many reasons win95 and nt will have to be there but I can have a Linux system too. Allison

27 years, 7 months

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3M silentwriter model 1483?

by fmc＠reanimators.org

<cdrmool(a)interlog.com> wrote: > Anyone know the story behind this? Its a small keyboard connected to a > small thermal paper printer. It has an old 70's style phone jack > (at least the kind we used in Ontario Canada) coming out the back of the > printer. My father who found it says he thinks its one of the early > devices used by the deaf. I think it was probably just a simple > terminal. Silentwriter or Whisperwriter? I think I remember the 3M flavor having the latter name. I played with one of them back in 1983 or 1984. That one had a keyboard connected to a thermal printer by some sort of cord (they were separate boxes), and I think an RJ11 phone jack for a POTS line. As I recall it was an ASCII terminal plus modem with a memory buffer that could be used for offline composition, and it came to us recommended as a tool for composing and sending Telexes via Western Union's Easylink service. (We sent it back and made an HP150 do the job.) I don't remember if it could be made to do other codes than ASCII. More recently (early 1990s), I've seen one with a little CRT (again in a separate box) used as a Telex terminal, but didn't inquire to find out how it was connected or what was on the other end of the connection. -Frank McConnell

27 years, 7 months

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VAX collectors attention

by H.Davies＠latrobe.edu.au

At 12:20 PM 01-12-98 +1030, Geoff Roberts wrote: >Hierarchical Storage Controller. >Waist high filing cabinet sized box, HEAVY too. >Basically, it's a PDP8 I think, running a little o/s called CRONIC >(Colorado Rudimentary Operating Nucleus for Intelligent Controllers) PDP-11 >Pretty much obsolete now. There was a slightly more sophisticated version >called a HSC70 >that used RX floppys instead of the tapes, and could handle more drives, >etc. The -70 had many advantages, speed of booting being the most interesting. Increased data access speeds when booted was also and advantage :-) There were HSC-90s as well, which had a SCSI option card to allow you to attach expensive SCSI disks to an expensive HSC to an expensive VAX (or alpha).... >I think there were a couple of models after that too. I've seen a HSC70 at >a scrap dealer recently. Excuse me, I've still got one in production and a couple of spares in my "spares" room.... >Allison or one of the other Master Decologists will doubtless correct any >mistakes in the above. :^) Well I'm not Allison :-) Huw Davies | e-mail: Huw.Davies(a)latrobe.edu.au Information Technology Services | Phone: +61 3 9479 1550 Fax: +61 3 9479 1999 La Trobe University | "If God had wanted soccer played in the Melbourne Australia 3083 | air, the sky would be painted green"

27 years, 7 months

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FS: Viking "Moniterm" 21 inch monochrome monitor and micro-channel video card

by bill_r＠inetnebr.com

For sale at www.ebay.com: Viking "Moniterm" 21 inch monochrome monitor and Viking "Moniterm" high-res monochrome video card for the micro-channel (PS/2) bus. eBay item #46309964 http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=46309964 Also throwing in an Apparat memory expansion card for the original IBM PC/XT. -Bill Richman (bill_r(a)inetnebr.com) http://incolor.inetnebr.com/bill_r - Home of the COSMAC Elf Microcomputer Simulator, Fun with Molten Metal, Orphaned Robots, and Technological Oddities.)

27 years, 7 months

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FT: DEC Dual RX01 Unit

by cmcmanis＠freegate.com

I am looking to trade a dual RX01 drive unit in fair condition for a 4K word PDP-8/e/m/f core stack (three board G104, G227, H220). If you are interested let me know. --Chuck

27 years, 7 months

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Call for final Elf99 design input

by dcoward＠pressstart.com

First I just want to say that I'm still looking for 'copies' of two RCA publications: MPM-232 Operator Manual for the RCA COSMAC DOS Development System (CDS III) CDP18S007 MPM-233 Hardware Reference Manual for the RCA COSMAC DOS Development System (CDS III) CDP18S007 If you have one or both or know where to order these manuals, please let me know. O.K. I said: >I think there is a source code listing in Paul Moews book on >Elf interpreters. I dug my copy out and yes there is source listings. Paul took RCA's CHIP-8 interpreter and modified it for the ELF. In this book ("Programs for the COSMAC ELF: Interpreters"), he starts with a subset interpreter that has 10 CHIP-8 instructions and is intended to run on a 256 byte Basic ELF. Then he lists the full Elf CHIP-8 interpreter with all 30 instructions. This is intended for a 4K Super Elf with 1861 video, but it can run on a 1 1/4K Elf. "It is also possible to use CHIP-8 in the 1 1/4K ELF's described in the articles in Popular Electronics, but to do so is very tedious unless the switches are replaced with a latched decoded keyboard." He also demonstrates with listings, how to extend the CHIP-8 instruction set. I can send you a copy of this book, it's only 31 pages. I also have one of his other books called "Programs for the COSMAC ELF: Music and Games". ----------------------------------------------------------- Fun Fact of the Day Did you know that a windowing graphical user interface was available for S-100 bus in 1979? See the product review in Popular Electronics Aug 79 page 74. ----------------------------------------------------------- ========================================= Doug Coward Press Start Inc. Sunnyvale,CA =========================================

27 years, 7 months

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FSOT: IBM 4869 external 5 1/4" floppy drive

by bill_r＠inetnebr.com

I've got a pile of these somewhere. If anyone can use them, I'll sell them for $10 each plus shipping. I also have some of the PS/2 internal 3.5"-to-external-5.25" drive adapters, too. >I used to assume that too-until I found a unit that someone had replaced the >floppy drive in the unit with a Teac drive. While not commonplace, it's still a >possibility. The 4869 cases work out nice for other machines as well if you want >to do a minor amount of rewiring for accomodate the non-IBM machine. > >SUPRDAVE(a)aol.com wrote: > >> if the drive bezel has a * on it, it's a 360k. if no * is on the >> faceplate it will be a 1.2 model. it's easy to change the drive anyway, i >> installed a 1.2 drive in the 4869 enclosure. >> >> In a message dated 98-12-01 18:40:40 EST, you write: >> >> << The title says it all. External floppy drive made by IBM. Excellent >> condition. It has the standard DB-37 connector. I think it's a 1.2Mb model >> but I'm not sure. Guaranteed against DOA. >> >> > > Bill Richman incolor.inetnebr.com/bill_r (Home of the COSMAC Elf microcomputer simulator!)

27 years, 7 months

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Recent Finds & Thoughts

by mark_k＠iname.com

On Tue, 1 Dec 1998 Philip Belben wrote: >We didn't try recording with Dolby and playing back without. I'd be very >surprised if that worked (did you mean it that way round). I can't >remember if we recorded with and played back with - I imagine that would >work - but we definitely couldn't get it to work recording without and >playing back with, although this actually works quite well for music. All Dolby B seems to do, is increase the level of high frequencies when the recording is made. Then when played back, the Dolby NR reduced the level of high frequencies back to what it should be (hence also reducing the background hiss). So recording with Dolby off and playing back wilth Dolby on will serve to reduce the level of high frequencies; not what you want with computer tapes. Recording with Dolby on and playing back with Dolby off should probably work; high frequencies will be louder than normal. >For PET (and family) tapes a C2N would probably make a good cassette >machine for playing it initially, since it does some of the signal >restoration itself. Better might be to use a high-end tape deck (maybe a three-head unit) since the transport should give less wow & flutter. -- Mark

27 years, 7 months

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