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

by ajp166＠bellatlantic.net

First rule of engineering if it isn't written down it never happend. That machine has two spiral bound notbooks and several inches of printouts... just in case I had to replace it. Allison ------Original Message------ From: Eric Chomko <chomko(a)greenbelt.com> To: classiccmp(a)classiccmp.org Sent: May 15, 2001 2:57:10 AM GMT Subject: Re: Northstar Horizon. Jeff Hellige wrote: > >I have two, one stock and the other I uilt in 78 both look good but the > >'78 one has all of my mods from years of use. FYI: the mods stay! > > And those mods, being common for that era and being done by > the machine's original owner/builder, would just add to the machine's > character and history. > As long as they were original and documented. Eric > > Jeff > -- > Collector of Classic Microcomputers and Video Game Systems: > Home of the TRS-80 Model 2000 FAQ File > http://www.geocities.com/siliconvalley/lakes/6757

25 years, 1 month

2
1
0 0

CompatiCards ?

by geoffr＠zipcon.net

If you see any of those floating around at a good price, yell :) i've been looking for one of those for a while :) At 03:45 PM 5/14/01 -0400, you wrote: >Hi, > > I have a CompatiCard I and I just picked up a CompatiCard IV. Will > the CC 1 do anything that the IV won't? I'm wondering if I need to keep > the CC-1. > > Can anyone send me the details about the CC-IV? I have the driver > file and it's currently in a system and connected to two 1.44Mb 3.5" > floppy drives and a 1.2Mb 5 1/4" drive and it seems to be working but I'd > like to know how to configure it for other drives. > > Joe >

25 years, 1 month

2
1
0 0

Televideo TelePC info wanted

by bobyates＠steward-net.com

Anyone have information on one of these? I found a French web site and was able to figure out a little info but would like to know more. It does boot up and ask for a boot disk. -- A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. Source: Lazarus Long in Time Enough For Love by Robert Heinlein

25 years, 1 month

2
1
0 0

Old chips for new project.

by donm＠cts.com

On Mon, 14 May 101 rhudson(a)cnonline.net wrote: > Hi all! > > It's not exactly classic, but... > > Are any of the 8 bit processors still available? I would like to scratch build > a z80 or 6502 or somthing board to hook up to my > > vt220 (ob classic??) > > I have **no** hardware experince (well I can solder, but beyond that...) > > Hints?? > > Thanks! > Check www.bgmicro.com, www.jdr.com, etc. They should be amongst your best sources. - don > > --------------------------------------------- > This message was sent for FREE using Shot-mail. > http://www.shot-mail.com/ > > >

25 years, 1 month

2
1
0 0

Old chips for new project.

by mcguire＠neurotica.com

On May 14, rhudson(a)cnonline.net wrote: > Are any of the 8 bit processors still available? I would like to scratch build > a z80 or 6502 or somthing board to hook up to my Z80s have found a second life of great popularity in the embedded systems community. They're readily available. Dunno about 6502s. -Dave McGuire

25 years, 1 month

2
1
0 0

Northstar Horizon.

by geoffr＠zipcon.net

Just picked one up and it looks pretty sweet, I chose one with a HD controller in it :) and a 5 or 10 meg HD :) it came with a spare HD controller, so that's pretty sweet too, I just wish that it had also had the wood case on it...

25 years, 1 month

5
8
0 0

Serious Request For Moderation (On Topic)

by sipke＠wxs.nl

Ghasp............ I'll turn to all of you my other cheek while thinking that this list is in serious need of a MODERATOR He, who is without sin ........... Sipke de Wal ---------------------------------------------- http://xgistor.ath.cx ----------------------------------------------

25 years, 1 month

22
89
0 0

Northstar Horizon.

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> >>I have two, one stock and the other I uilt in 78 both look good but the >>'78 one has all of my mods from years of use. FYI: the mods stay! > > And those mods, being common for that era and being done by >the machine's original owner/builder, would just add to the machine's >character and history. Since the history of that one machine is entirely mine from day one I can even vouch for the reasons behind the mods. Allison

25 years, 1 month

1
0
0 0

Seeking a military switch - MS25089-4AR

by ethan_dicks＠yahoo.com

A friend gave me a flight control grip from, my research shows, an F-4. It is, in any case, the real deal - A "SWITCH ASSY B-8-A" It's the stick with the hat control on the back, a single trigger and three red push buttons at various locations down the left side. It's been copied in numerous variations for military-style PC joysticks One of the buttons has the top sheared off on mine. Everthing else seems to be fine. I would like to adapt this to a modern joystick for a flight sim. I need a replacement switch. There are very few web pages that reference the part number, MS25089. I have contacted a couple of vendors, but it's clear from reading their pages that they deal in commercial/ military quantities. Does anyone out there have a favorite military surplus place that would sell a single switch. I wouldn't mind a spare or two if they are under a certain amount (few bucks). Thanks, -ethan ===== Visit "The Seventh Continent" http://penguincentral.com/penguincentral.html __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

25 years, 1 month

1
0
0 0

Northstar Horizon.

by ajp166＠bellatlantic.net

Feh, I have two, one stock and the other I uilt in 78 both look good but the '78 one has all of my mods from years of use. FYI: the mods stay! Allison -----Original Message----- From: Jeff Hellige <jhellige(a)earthlink.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, May 14, 2001 3:21 PM Subject: Re: Northstar Horizon. >On Monday, May 14, 2001, at 01:39 PM, Fred Cisin (XenoSoft) wrote: >> Besides, won't that trigger a few hundred posts arguing about >> "vintage" v >> restoration/reproduction? > > But the central part of the machine would still be the original >Horizon so reproducing the outer panels to restore it's look shouldn't >be a problem. Regardless of how well you care for something, it is >eventually going to need some restoration work, that's just a part of >aging. A great many antique cars have gone through multiple restorations >at this point. > > Jeff

25 years, 1 month

3
2
0 0

gimpy (not broken) PSU

by Demon02554＠aol.com

ok...this one is weird it is a standard PSU in a 486 Compaq that i just dug up outta my dads storage... it will start up only if i disconnect it from everything... when i connect it to the motherboard and only the motherboard then it will start for a few seconds, then die...and even if i disconnect everything from it after that it won't start back up... before i go through and test every connection does anyone have any suggestions as to what is wrong with this thing? thanks, Robert Cobbins

25 years, 1 month

7
8
0 0

Northstar Horizon.

by ajp166＠bellatlantic.net

From: Frank McConnell <fmc(a)reanimators.org> >> I no longer have a Northstar, but wasn't it 1/2"? > >The presumably vintage cover from the Horizon that sits in my office >(yes, Fred, the one I got from you) is about 7/16". For all I know >that could be 3/8" or 1/2" in plywood inches. No idea where you got that from. Mine MEASURES .740! I've seen home made ones that were any thing but right. >And yes, NorthStar did make the Horizon with a metal cover too. I >think it's a metal cover on the same underlying frame. The were the wood and the metal but not both unless they tried to comply with FCC (NOT!). Allison

25 years, 1 month

1
0
0 0

CompatiCards ?

by rigdonj＠intellistar.net

Hi, I have a CompatiCard I and I just picked up a CompatiCard IV. Will the CC 1 do anything that the IV won't? I'm wondering if I need to keep the CC-1. Can anyone send me the details about the CC-IV? I have the driver file and it's currently in a system and connected to two 1.44Mb 3.5" floppy drives and a 1.2Mb 5 1/4" drive and it seems to be working but I'd like to know how to configure it for other drives. Joe

25 years, 1 month

2
2
0 0

nvram that 2716 pin compatible???

by ajp166＠bellatlantic.net

Any of the 2816 (eeprom or flashram) parts have the same pinout. Allison -----Original Message----- From: Curt Vendel <curt(a)atari-history.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, May 14, 2001 6:00 PM Subject: nvram that 2716 pin compatible??? >Anyone know of any nvram currently avail. or discontinued that would 2716 pin >compatible???? > > > >Curt > > > >

25 years, 1 month

1
0
0 0

Northstar Horizon.

by ajp166＠bellatlantic.net

Actually based on mine it's 3/4" dark mahogony plywood that has aged well over the years. Allison -----Original Message----- From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, May 14, 2001 2:46 PM Subject: Re: Northstar Horizon. >On Mon, 14 May 2001, Sellam Ismail wrote: >> It would be simple to reconstruct the cover. It was made simply out of >> 3/8" plywood and then varnished a dark walnut-like color. > >I no longer have a Northstar, but wasn't it 1/2"? > >Besides, won't that trigger a few hundred posts arguing about "vintage" v >restoration/reproduction? > > >Have you bought plywood lately? They have reduced the thicknesses of >plywood! You can't get the right thickness to make an accurate copy! > >-- >Grumpy Ol' Fred cisin(a)xenosoft.com >

25 years, 1 month

1
0
0 0

Quadram Quadboard

by ajp166＠bellatlantic.net

I'd add if it has TWO 6502s it would be just like my trackstar128. Allison -----Original Message----- From: Chad Fernandez <fernande(a)internet1.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, May 14, 2001 12:57 PM Subject: Re: Quadram Quadboard >Are you sure? The only cards I have heard of like that are the >Trackstars. > >I always thought the Quadboard was a RAM expansion card for the PC? > >Chad Fernandez >Michigan, USA > >Geoff Reed wrote: >> >> Does anyone have docs for this beastie? it's an apple-II on a card that >> goes into an XT... or does anyone have any interest in it? it's been >> sitting on my shelf for ~ 12 years now... >

25 years, 1 month

1
0
0 0

se/30

by ajp166＠bellatlantic.net

Thank your for a message that show up as 18pt type on my screen... SHALL I YELL AT YOU TOO? Allison -----Original Message----- From: Phil & Carole <philcarole(a)acenet.net.au> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, May 14, 2001 6:39 AM Subject: se/30 > can someone give me some info on se/30's or System 6.0.3? >regards Tom, >reply to:tomhotdog@hotmail.com >

25 years, 1 month

1
0
0 0

Northstar Horizon.

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > On Mon, 14 May 2001, Sellam Ismail wrote: > > It would be simple to reconstruct the cover. It was made simply out of > > 3/8" plywood and then varnished a dark walnut-like color. > > I no longer have a Northstar, but wasn't it 1/2"? The presumably vintage cover from the Horizon that sits in my office (yes, Fred, the one I got from you) is about 7/16". For all I know that could be 3/8" or 1/2" in plywood inches. And yes, NorthStar did make the Horizon with a metal cover too. I think it's a metal cover on the same underlying frame. -Frank McConnell

25 years, 1 month

1
0
0 0

In search of 20ma to eia converter

by mbg＠world.std.com

I have an old serial paper tape reader which runs with 20ma and would like to use it to archive all my pdp-11 (and some pdp-8) paper tapes. But I need a converter... Can anyone help? Any pointers to a simple schematic? Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

25 years, 1 month

6
7
0 0

Lexitron VT1303, NBI System 3000, NBI System 4000s

by donm＠cts.com

Hello UK readers, The following two messages are, in reverse order, an original posting in alt.folklore.computers and Trevor's reply to my query about disks for the Lexitron. I include the first message to show some sense of urgency and the second for equipment information. Please reply directly to Trevor, not me. - don ================================= >From trevor.barker(a)virgin.net Mon May 14 14:54:22 2001 Date: Mon, 14 May 2001 19:39:54 +0100 From: Trevor Barker <trevor.barker(a)virgin.net> To: Don Maslin <donm(a)cts.com> Subject: RE: Lexitron VT1303, NBI System 3000, NBI System 4000s Hi Don, Thanks for you reply, unfortunately I don't have the disks, sorry. Do you know of anyone this side of the pond who might be interested?, only I'm moving house soon and will have to take the machines to the local tip if I can't find a home for them - which I can't bear to do. Regards Trevor ================================ Path: nntp.cts.com!galanthis.cts.com!newspeer.cts.com!newshub.sdsu.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!dispose.news.demon.net!demon!btnet-peer0!btnet!news5-gui.server.ntli.net!ntli.net!news6-win.server.ntlworld.com.POSTED!not-for-mail From: "Trevor Barker" <trevor.barker(a)virgin.net> Newsgroups: alt.folklore.computers Subject: Lexitron VT1303, NBI System 3000, NBI System 4000s Lines: 15 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Message-ID: <QdxL6.751$_C5.214227(a)news6-win.server.ntlworld.com> Date: Sun, 13 May 2001 15:57:12 +0100 NNTP-Posting-Host: 62.252.1.13 X-Complaints-To: abuse(a)virgin.net X-Trace: news6-win.server.ntlworld.com 989765616 62.252.1.13 (Sun, 13 May 2001 15:53:36 BST) NNTP-Posting-Date: Sun, 13 May 2001 15:53:36 BST Organization: Virgin Net Usenet Service Xref: nntp.cts.com alt.folklore.computers:59636 Hi, I have the following computers / word processors, for which I would like to find good homes (UK):- Lexitron VT1303, NBI System 3000, NBI System 4000s anyone interested? They were in working order when they were given to me 10 years ago, can't vouch for them now though.

25 years, 1 month

1
0
0 0

nvram that 2716 pin compatible???

by mcguire＠neurotica.com

On May 14, Curt Vendel wrote: > Anyone know of any nvram currently avail. or discontinued that would 2716 pin > compatible???? Howbout the Seeq (et al) 2816? -Dave McGuire

25 years, 1 month

1
0
0 0

PDP 11/84 faceplate sticker available

by cmcmanis＠mcmanis.com

Don't know how I ended up with this but I've got a brand new, never used PDP 11/84 front panel sticker. It has the PDP 11/84 legend and the switch legend on it. If anyone is restoring an 11/84 and could use this let me know. Its free but you must have a PDP 11/84 :-) --Chuck

25 years, 1 month

1
0
0 0

The XeroX-Files (can anyone ID these machines?)

by jeff.kaneko＠juno.com

These things are purple, and kinda small: http://home.kscable.com/kh6jjn/May13$05.jpg http://home.kscable.com/kh6jjn/May13$06.jpg My first thought wa that this was a DANDELION, but I'm not so sure . . . http://home.kscable.com/kh6jjn/May13$10.jpg ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 1 month

9
12
0 0

PS/2 Speech Adapter

by rcini＠optonline.net

Hello, all: I picked up (for $5) a brand new PS/2 speech adapter. It's a long ISA card with an external speaker box. Oddly, there is no software included at all. Does anyone know how this thing was supposed to be used. It has a TI speech/DSP chip (not a GI or NS chip). Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

25 years, 1 month

4
3
0 0

Trade for PDP8a/RC25

by brian.roth＠firstniagarabank.com

I need to find a limited function front panel for a PDP8a and a working RC25. The internal drive on the RC25 does not have to be functional as most are not but the external cart drive needs to be functional. I have some older VAXstations that I would be willing to trade. Brian. Brian Roth Network Services First Niagara Bank (716) 625-7500 X2186 Brian.Roth(a)FirstNiagaraBank.com

25 years, 1 month

2
1
0 0

Tango Schematic capture, PCB layout and autorouting programs

by clint.millett＠Kayden.com

Hi Joe, I've been using this program for years. I use it almost everyday and find that it is very simple to use (but I have been using it since 1988 so it is now natural to me). If you can find a flatbed plotter, you can actually put a resist pen into the pen holder and plot PCB's right at your desk. I have done lots of boards this way for prototyping purposes and have saved a bundle in PCB prototyping costs. Clinton M. Millett, CET, MCSE Senior Design Technologist Kayden Instruments Inc. 3368 - 114 Ave SE Calgary, Alberta, Canada T2Z 3V6 Phone: (403) 236-6232 FAX: (403) 253-1423 EMAIL:clint.millett@kayden.com

25 years, 1 month

2
1
0 0

ID this Intel Power Supply

by jeff.kaneko＠juno.com

Joe: You've just described the power supply for one of our Intel ICE's (one of the *really* old ones). The sides a slightly sloped like a FLUKE PTI style case, right? Almost certainly used with one of their (Old) emulator or dev products. Jeff On Mon, 14 May 2001 10:28:52 -0400 joe <rigdonj(a)intellistar.net> writes: > I went scrounging this weekend and found an Intel power supply. > It's > a stand alone uinit that runs on 115 or 230 volts AC and it has two > output > connectors. They look like Molex connectors but they're bigger than > the > ones used in the PCs. Each connector has nine pins and puts out 5 > VDC@8A > and + & - 12 VDC @ .5 A. The box is about a foot long and 6 inches > wide and > about 5 inches tall. The ends are white and the sides and top are > made of > perforated metal painted black. The Intel part number is > 108399-003. Does anyone know what this is for? > > Joe > ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 1 month

2
1
0 0

Vintageness

by mtapley＠swri.edu

Iggy, You are in a rare and enviable position, if you really don't care whether what you get is the original or a copy. To you, if I interpret what you say correctly, - A CD and Walkman is better than a night at the symphony (cheaper, can be replayed at will). - Safeway (a chain of grocery stores in the US) generic root beer is better than A&W (cheaper, still floats ice cream) - A Saturn (car) is better than a BMW M3. (cheaper, more dealers, still gets up to the speed limit) - A print of the Mona Lisa is as good as the original (and can be rolled up and stuffed in a tube for transportation or mailing). - This year's repro Mark-8 is as good as a 1970's one (and more reliable). - Corner liquor-store champagne is as good as Dom Perignon (still bubbles, you still get tipsy when you drink enough). This is wonderful for you because you can afford all the ersatz experiences a *lot* more easily than I could afford all the originals. It's also slightly good for me, because it means you won't be competing with me if I should ever have a chance to buy the Mona Lisa (or a BMW, ...). I *know* there are differences between the originals and the copies, in all of the cases I listed above. In three out of six, I am well enough equipped to appreciate them, and I would *really* want to see/use the original at least once, even if budgetary constraints forced me to live with the copy long-term. (ie: go to the symphony and then buy the CD, hoping it would help me remember some of what the symphony was like). In the other three cases, I don't appreciate all of the differences. But because they *are* copies, I *know* they are there, and if I ever become better educated, I may regret owning a copy when I learn what they are - or I may forever miss out on some subtle beauty of the original, because I settled for a copy. Suppose I never drove a BMW - a Saturn always got me where I was going. I could easily sneer at people who "wasted their money on BMW's", out of ignorance. The fact that I really wouldn't be able to tell the difference as I was learning to drive doesn't mean I'd never be able to tell. The same applies to research on the history of the creation of the original. Maybe the PC board was laid out a certain way to facilitate test during assembly, or because the designer knew his PC etching technique wouldn't support two vias too close together. If Speedy Circuits can now put 10 vias in the same space, and the "copy" is laid out to take advantage of that, some history is lost, whether original 1970's parts are used or not - and if I am researching the copy, I'll never notice it. And I don't buy the argument that any copy will ever be the true equal of the original - it may be pretty close, *in the characteristics that the copiers care about*, but it won't be the same. Finally, and this may be the point that you and Sellam are most at odds about, there is a component of emotional state that is important to any experience. If you are able to put yourself into the same emotional state before and during viewing a copy of the Mona Lisa as you would be viewing the actual Mona Lisa - good for you. It'll save you the price of admission to the Louvre (or where-ever the Mona Lisa is). I can't. I think, based on his arguments, Sellam can't (correct me if I'm wrong here, Sellam). To us, the knowledge of what we are looking at is a critical part of experiencing it. It's worth something (though it may not be worth the cost of buying the thing, either), and it means we do not regard people who value originalty (and pay a lot for the originals) as "idiots" - we share some of their values. It doesn't mean we won't use copies either. I've never seen the real Mona Lisa, but the copies I've seen are good, and I've enjoyed them. But I want to see the real one, someday. - Mark

25 years, 1 month

1
0
0 0

FREE AMIGA MAGAZINES in Montreal -- They are gone...

by claudew＠videotron.ca

Never expected this response to a bunch of magazines Already have 4 - 5emails. Talking with people in order of emails received, if they look at shipping and pass, I go on to next. But already have 5 so thats pretty much it I guess someone in those 5 will be willing to pay shipping. Thanks Claude

25 years, 1 month

1
0
0 0

Vintageness ( was Re: Serious Request For Moderation (On

by xds_sigma7＠hotmail.com

Another good fact to add to the Apple I vs. Sun analogy is the fact that Apple is credited with pioneering the desktop/home/personal computer market (mass market that is), while Sun didn't invent the workstation (though they'd like you to think so). For what it's worth, Apollo invented the workstation, though Sun was around fairly soon afterwards.. What irks me is that I read an interview with some Sun guy about the Sun Blade and they claimed they invented the workstation, which is untrue.. ugh. The Apple I also, as was stated, had a very small production as well, and it was the very first product of a company that is still around and very famous, though I'll exclude any thoughts I might have about their hardware... Along those lines, think what a PDP-1 would be worth, with a production of 50 or so, and being A. DEC's first computer system, and B. the machine upon which Spacewar was created.. It is irrelevant if you like or dislike DEC (or Apple), you still can't deny they have made a lasting mark upon the computer industry, unless you like to make yourself look at least somewhat clueless... Just like Da Vinci's ideas, though not so much his paintings, have had a profound influence on Western civilization... _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 1 month

4
4
0 0

FDCs -- was Re: TELEDISK Problem

by ajp166＠bellatlantic.net

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >> some don't, but I can't remember which FDCs do/don't (I think WD 37C65 etc >> need it but NatSemi DP8473 and WD 1770/1772 don't care). > >I seem to remember a problem something like : 765s and related >controllers (by practical experimentm, the 37C65 is one of these) will >miss a sector header (and thus be unable to read the sector) if it comes >too soon after the index pulse. The WD177x and 179x, etc don't seem to care. Yes, that is a spec'ed item delay after index. The cheap fix, delay index about 95% of one revolution, fakes it into thinking it occured earlier. >The 765 and the 8272 are essentially the same chip. They use an external No the ARE the same chip, at one point NEC made them for Intel. >data separator circuit, and in most PC disk controllers this is >configured for DD operation only. If there's the well-known 9216 8 pin data >separator chip, you might be able to get that to run in single-density >mode (Inverting the MFM select output of the 8272 and feeding it to pin 5 >(cut the track that grounds this pin of course) of the 9216 often works >for _reading_. Writing involves modifying the write precompensation circuit. Depends on the precomp needed. for single density it's fairly lax, for DD that might require tweeking or not. >If the data separator is several smaller chips (like the original IBM FDC >card), it's a lot more work. If you have the drawings, it may be easier. Many more parameters are alterable that way. >I think the 37C65 should work in single density mode, but it's a long >time since I read the datasheet. It will do single and double 8", unless the board compromized and used a half speed clock. >And my experience of other disk controller chips (UMC, etc) is that while >they may be documented as working in SD mode, they don't. At least not >reliably. It's a setup and config issue. Allison

25 years, 1 month

2
1
0 0

FREE AMIGA MAGAZINES

by sheldon＠ameritech.net

Claude, I'm interested in the last couple of AmigaWorld issues to complete my collection, March 1995-onward. Thanks, --Sheldon

25 years, 1 month

3
2
0 0

ldb4401 can be replaced by .....?

by General＠cyber.net.pk

dear sir please address the issue regards nasir

25 years, 1 month

3
2
0 0

VCF East 1.0 - July 28/29 in Marlborough, Massachusetts!

by mcguire＠neurotica.com

I'll be there, barring any catastrophe. -Dave McGuire On May 14, Cini, Richard wrote: > Who's going to VCF East?? I was toying around with going and wanted to see > who from the list would be there. > > Rich > > > -----Original Message----- > From: Vintage Computer Festival [mailto:vcf@siconic.com] > Sent: Wednesday, May 09, 2001 12:46 AM > To: Classic Computers Mailing List > Subject: VCF East 1.0 - July 28/29 in Marlborough, Massachusetts! > > > > It's finally official! > > VCF East 1.0 > July 28-29, 2001 > 10am to 5pm daily > Best Western Royal Plaza Hotel and Trade Center > Marlborough, Massachusetts > > Admission > > $10 daily at the door > > Speakers > > Want to give a talk at VCF East 1.0? E-mail me at <sellam(a)vintage.org>. > > > Exhibitors > > Sign-up your exhibit at http://www.vintage.org/2001/east/exhibit.php3 > > > Vendors > > Want to sell vintage computer stuff at VCF East 1.0? Contact me at > <vendor(a)vintage.org>. > > > More info to come soon, including updated VCF East 1.0 web pages with > speaker schedule, exhibits and more! > > Sellam Ismail Vintage Computer > Festival > ---------------------------------------------------------------------------- > -- > International Man of Intrigue and Danger > http://www.vintage.org

25 years, 1 month

1
0
0 0

Vintageness ( was Re: Serious Request For Moderation (On

by xds_sigma7＠hotmail.com

The DN10000 is the bit-slice implementation of the RISC chip Apollo designed.. Here's a note from a computer architecture site: PRISM (3-wide LIW), 1988 - Barry Flahive, Rick Bahr, and John Yates John Yates contributed the multi-issue idea. PRISM was a 3-wide machine -- in each successive clock tick, you could do a floating-point add, a floating-point multiply, and an integer operation (typically a LOAD, for instance of two floating point registers). Perfectly balanced for single-precision Linpack or FFT. DN10000 - the first (and last) model, 54 MIPS, 36 megaflops in 1989. Paul Mageau and Andy Milia were chiefly responsible for the memory system. Doug Voorhies, Olin Lathrop, and Dave Kirk were chiefly responsible for the graphics system. Therefore, the DN10000 is the bit-slice implementation of PRISM... A bunch of the stuff in PRISM went into PA-RISC 1.1, I believe... The date for PA-RISC 1.0 is 1987, don't know now of any machines besides one model of 3000 that use it... _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 1 month

1
0
0 0

FREE AMIGA MAGAZINES : 1989-1995 Amiga World, .info, Amigo Times, Amiga Transactor...many, or to reclycling they go

by claudew＠videotron.ca

Hi all from Montreal. Big piles of Amiga mags. Donated from frequent collection contributor (ex local DEC employee). Mostly Amiga World 1989 - 1995. A few .info, Amigo Times, Transactor, Amazing Amiga etc...All great shape. Sorry no time to list issues here. Not even time to go through them...Perhaps you are looking to complete some years or whatever. Ask for issues, Ill get back to you quick, I check email often. Free for just shipping You can ask for one (cheap to ship) or some....or all of them ($$$ to ship...) Please hurry cause these will go in recycling bin in a few days. This is not a trade - these are offered free....but you can always remember me now or in the future....I collect mostly "home" micros 197x-198x 8 and 16 bits...some machines rare here in Montreal...and common in US... Thanks Claude http://computer_collector.tripod.com

25 years, 1 month

3
2
0 0

Vintageness

by mmcfadden＠cmh.edu

My opinion on the value of old items is that they were created for a task, they performed the task and then survived to the present. For example I am thrilled when I can hold and read a rare book that was read by somebody 400 years ago. I'm seeing the same information that they saw, I'm reading the same words. Some of the books aren't event that old, I have read first edition science fiction books from the 1930's. Seeing an old computer gives me the same thrill, the Smithsonian has examples of computers on display that I can remember using 20-30 years ago. Maybe it's nostalgia for my youth. I think the real reason is that there was a great promise that computers offered to solve problems never before solved. Now we are numbed by the rapid progress and "noise level". There are games, media, and information that comes at us in an avalanche and we filter out the value of most of it. The Apollo era computers and hardware now seem so simple almost antique, yet at the time they did the job and were examples of the level of sophistication that could be achieved. Mike mmcfadden(a)cmh.edu

25 years, 1 month

1
0
0 0

PDP-11/70 boards available

by norm.anheier＠pnl.gov

I have some PDP-11/70 boards available. The board numbers are: M8123 M8164 M8136 M8135 M8142 M7984 Please contact me if you can use any of these. Thanks Norm

25 years, 1 month

1
0
0 0

ID this Intel Power Supply

by rigdonj＠intellistar.net

I went scrounging this weekend and found an Intel power supply. It's a stand alone uinit that runs on 115 or 230 volts AC and it has two output connectors. They look like Molex connectors but they're bigger than the ones used in the PCs. Each connector has nine pins and puts out 5 VDC@8A and + & - 12 VDC @ .5 A. The box is about a foot long and 6 inches wide and about 5 inches tall. The ends are white and the sides and top are made of perforated metal painted black. The Intel part number is 108399-003. Does anyone know what this is for? Joe

25 years, 1 month

1
0
0 0

RISC6000 7007 POWERportable N40

by oliv555＠arrl.net

Saw this thread some months back but did'nt have an N40 then. Now I've picked up a couple at auction and having the same problem, namely systems come up to a login prompt and I don't have account/password. The original poster was able to work around by reloading the OS. But since I dont have the AIX3.2 distro it comes back to the original question, how to get into single user mode/root to be able to open a new user account? I've googled the net but little is out there about the N40. I'm a AIX/unix newbie so any pointers would be appreciated. Thanks - nick oliviero

25 years, 1 month

1
0
0 0

FT: Rare Amiga serial cables

by cmcmanis＠mcmanis.com

I just ran across my missing three serial cables that I got originally with my Commodore 8 port serial card for the A2000. These have a DB25 on one end and a 8 pin mini-DIN on the other. The A2000 w/ its card are gone, but the cables were left behind. So if you got one of these cards and are missing the cables this is a really great opportunity. Also found an AREXX book for the Amiga. Will include it if desired. They are available for trade for any DEC Q-bus or MicroVAX stuff. --Chuck

25 years, 1 month

2
1
0 0

Vintageness ( was Re: Serious Request For Moderation (On

by xds_sigma7＠hotmail.com

Yes, HP bought Apollo in 1989, solely for their RISC technology, which they added to their RISC chip and caused it to become much better than before... *Drools over thought of owning a 4 processor DN10000* Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 1 month

2
1
0 0

Vintageness ( was Re: Serious Request For Moderation (On

by ajp166＠bellatlantic.net

From: Bill Pechter <pechter(a)bg-tc-ppp1366.monmouth.com> >Personally, I think DEC pretty much invented the workstation... >Actually GT40's were pretty much early cad stations for pc cad >(Racal-Redac) had some pretty good software on them. > >Wasn't the PDP1 pretty much an engineering workstation with Vector >(rather than raster) based CRT. Yep and most of the later machines also had similar display systems or better. >Apollo and Sun were pretty much an alternative to the higher >priced Vaxes with add-on graphics like the VSV11 unit. Untill DEC caught on then the workation wars were on. Allison

25 years, 1 month

2
1
0 0

gimpy (not broken) PSU

by ajp166＠bellatlantic.net

From: Demon02554(a)aol.com <Demon02554(a)aol.com> >ok...this one is weird it is a standard PSU in a 486 Compaq that i just dug up outta my dads storage... it will start up only if i disconnect it from everything... when i connect it to the motherboard and only the motherboard then it will start for a few seconds, then die...and even if i disconnect everything from it after that it won't start back up... before i go through and test every connection does anyone have any suggestions as to what is wrong with this thing? the PSU is dead or very dying. repair or replace. Allison

25 years, 1 month

1
0
0 0

Vintageness ( was Re: Serious Request For Moderation (On

by xds_sigma7＠hotmail.com

Well if the existence of reproductions means the Mona Lisa isn't rare, then you miss the whole point... Along the lines of what Jeff said, I would add that any moron can make a reproduction of the Mona Lisa, but could you create it, from scratch, with actual paint/canvas/etc., use the same style as Da Vinci, and end up with the same result? I highly doubt it. Now you may be an extremely accomplished painter or something, I don't mean to assume you've never painted or anything, but I have personal experience with what it is like to try to paint in the same style as one the masters, and let me tell you, it is *very* difficult.. I tried to paint like Monet, and I really didn't come very close to his style at all. However, I did gain a new appreciation for the level of skill he must have had in order to paint in such a way. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 1 month

2
1
0 0

P/OS Reinstallation

by dittman＠dittman.net

I downloaded the DECUS P/OS distribution. I did a FULL reinstallation but I can't remember the proper way to install the extra items from the rest of the floppies (I'm talking about the 21 floppies in the 177 set). I tried to install a couple of them by using the install option from Environmental Services but I get an error that some of the files must be installed system-wide and to contact the system administrator. I've set the default account to be SYSTEM but that didn't help. -- Eric Dittman dittman(a)dittman.net

25 years, 1 month

1
0
0 0

DRV11-WA info

by xds_sigma7＠hotmail.com

BAR register? What does the qbus have to do with a Browning Automatic Rifle??? _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 1 month

4
3
0 0

The XeroX-Files (can anyone ID these machines?)

by Innfogra＠aol.com

The purple is a Xerox 6085 and the white one is a 8010. Nice machines. You need the matching monitor and keyboard. The 6085 monitor has two cables on it and a power cord. This along with the Xerox makes them easy to identify. You need the monitor and keyboard to make either the 6085s and 8010s to work. The 8010 keyboard is fat and the 6085 is thin and has a 6 or 8 pin RJ type connector. IIRC both have either 8 or 10 large function keys at the top. Both systems are worth saving. I think I have a set of Viewpoint 2 for the 6085s (5 1/4" disks) in storage. I keep hoping I will find another myself. Paxton Portland, OR

25 years, 1 month

1
0
0 0

Power supply question

by ajp166＠bellatlantic.net

From: Ken Seefried <ken(a)seefried.com> >Forgive me if this is a silly question; it never got covered in my digital >electronics classes :-). > >Is a modern switching power supply a suitable replacement for an ancient >(and dead) linear power supply in a classic computer (PDP-11, FWIW)? First switch mode vs linear only covers HOW the regulation is obtained in a power supply unit. Most of the DEC PDP-11s had switch mode supplies especially the Qbus PDP-11s though many of the later Unibus systems did as well. The problem using a PC supply is that DEC supplies provide DCok and BeventL (line time clock) to name a few signals plus the +12 and -12 power may exceed most PC PSUs. the later is something for a case by case study. I have used a 200W PC supply (it was handy) to run a 12 slot H9281-AC with 10 cards in it. I had to supply DCok and Bevent-L, it was otherwise ok. Allison

25 years, 1 month

2
1
0 0

Power supply question

by ken＠seefried.com

Forgive me if this is a silly question; it never got covered in my digital electronics classes :-). Is a modern switching power supply a suitable replacement for an ancient (and dead) linear power supply in a classic computer (PDP-11, FWIW)? Ken

25 years, 1 month

3
3
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