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101090 discussions

Wanted: Tektronix 401x keycaps/keyboard (+ 4051 keycap)

by legalize＠xmission.com

I have a 4010 that is missing the keys '1', '3' and 'ESC'. The '1' key has a chipped mounting post for the keycap as well. I'm looking for replacement keycaps and/or a replacement keyboard. I also have a 4051 that is missing a single key off the numeric keypad on the right. It is labelled 'ENTER EXP'. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 5 months

PDP-8/E H724 power supply and serial interface

by pete＠dunnington.plus.com

I've taken my newly-acquired PDP-8/E apart to clean out the dust and disintegrated foam, but I've not powered it up yet. (In fact it's still in pieces while I sort out the foam). I'll be checking the capacitors before I go much further. Part of the reason for not powering it up is that it's a 110V version, and here in the UK my mains is 240V. Looking at the engineering drawings (on David Gesswein's site, and Highgate) for the H724 (110V) and H724A (240V) supplies, I see transformer taps shown for both voltages, and on the face of it, it should be very easy to convert. Just a matter of moving the connections from tags 6 and 9 of the relay (or "realy" as the schematic calls it :-)) Has anyone ever done this? Another question: There are four 1N4721 rectifier diodes used for the +8V and +15V supplies (two pairs for two full-wave rectified supplies). Someone before me has disconnected one end of one of them. Usually that's because it's gone short, but my meter says this one is OK. Any ideas why? I'm also lacking any serial interface for this machine. I do have some other spare boards; is anyone (especially in the UK) interested in a trade? -- Pete Peter Turnbull Network Manager University of York

17 years, 5 months

keypunch equip on govliquidation

by roger.holmes＠microspot.co.uk

From: Richard <legalize at xmission.com> > Subject: Re: keypunch equip on govliquidation > To: "General Discussion: On-Topic and Off-Topic Posts" > > In article <112020081326.28067.49256593000ACD3500006DA322218865869B0A02D29B9B0EBF9D0A050E039A089C at att.net > >, > shumaker at att.net writes: > >> large govliquidation lot auction opened today has two types of >> keypunch consoles > , one of which seems to be unused IBM equip. Photo shows it even > has some docum > entation. >> >> http://cgi.govliquidation.com/auction/view? >> id=2037010&categoryId=c7149 >> > > That looks like the kind of keypunch we had at the University of > Delaware > around 1979/1980. I remember using them to duplicate punched cards > just > for the purpose of making confetti :). The earlier pictures are .029 keypunches which look to be in great conditions. The next to last picture looks like a .026 keypunch but seems to have suffered a bit, but still good for spares. If only they weren't the wrong side of the Atlantic or cost a bit less to ship. Are they really saying the keypunches only cost them 100 dollars each new (400 for 4 and 200 for 2)?

17 years, 5 months

Seeking Proteon P4100+ router manuals

by james＠jdfogg.com

> >> I'm guessing Proteon was an independent company until > DEC bought >> them at some point? > > > >Did DEC ever buy Proteon? I was with DEC's network group > (NAC) >when we bought the rights to the Proteon code base > (or at least >some of it). > > That's how I remember it too. I was involved in that > handoff at the time. > > I may have left before it came to fruition, but I don't > remember that anything ever came of this. In other words, > DEC paid Proteon $1M or so, got a pile of source code, and > nothing was done with it. At some point Proteon became part of Ascend.

17 years, 5 months

Seeking Proteon P4100+ router manuals

by sellam＠vintagetech.com

I'm looking for a set of manuals for the Proteon P4100/P4100+/P4200 routers, circa 1989 or earlier. I'm guessing Proteon was an independent company until DEC bought them at some point? Just guessing. Anyway, if you've got a set of manuals I'd be interested in purchasing them from you. Please contact me directly if you have some. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 5 months

Nicolet manuals and software

by chrish＠precisionmetrology.com

Mr. Joe R., I am a manager for a calibration company and ran across your web page stating that you have several old Nicolet manuals. When I clicked on your link for them it told me that this was an invalid link. I am curious if you have a manual for a Nicolet Integra 20 Oscilloscope. I am looking for calibration information and having a hard time finding it online due to the age of this equipment. Can you help me out? My Regards, Chris Henley Lab Manager Precision Metrology, Inc. Phone: (414) 351-7420 Fax: (414) 351-7429 chrish at precisionmetrology.com

17 years, 5 months

computer graphics in the 1950s

by legalize＠xmission.com

What was the first machine to have some sort of graphical display (most likely oscilloscope style) driven by a computer? SAGE is the first one I can think of; I don't recall the predecessors at MIT having any sort of graphical display. Then, after the first machine, besides SAGE, what systems were utilizing graphic displays in the 1950s? Did the IBM commercial derivative of SAGE use any graphic displays? -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 5 months

anybody have any IBM 8525's?

by jlobocki＠gmail.com

hello, Im trying to find one of those all-in-one PS/2 computers that IBM had in the late 80s, some were under the "EDUQUEST" badging, but most were the all-in-one 8525, and for some reason those who are selling on ebay think they have one of the rarest machines in the world and charge as so, and it really makes me regret not grabbing one from the salvage pile when they dumped all the ones in 99 when i was in middle school. anyway, does anyone have one they are willing to part with, or know of a cheap source of them? thanks -Joe

17 years, 5 months

RS232 voltage level converter box

by mbbrutman-cctalk＠brutman.com

I came across something strange that I need some help with. Pictures are here: http://www.brutman.com/2008_1117_140718_RS232_conv_back.jpg http://www.brutman.com/2008_1117_140718_RS232_conv_top.jpg It looks like a converter box that takes TTL level serial signals and converts to RS232 levels, kind of like the MAXIM single chip solution except that it is using 1488 and 1489 chips. The problem is that it came with a PCjr, but it doesn't physically plug into a PCjr. The onboard serial port is only 16 pins, while the rectangular connector here is 20 pins. It physically doesn't work. Does anybody know another machine or card that might have used the 20 pin header for a serial port? I'm almost thinking that I'm missing another piece (a card internal to the machine) that the header goes to. Regards, Mike

17 years, 5 months

Seeking Proteon P4100+ router manuals

by james＠jdfogg.com

> I'm looking for a set of manuals for the Proteon > P4100/P4100+/P4200 routers, circa 1989 or earlier. I'm > guessing Proteon was an independent company until DEC > bought them at some point? Just guessing. Anyway, if > you've got a set of manuals I'd be interested in > purchasing them from you. > > Please contact me directly if you have some. Wow, there's a flashback. I was working for Proteon when these were developed. I helped prototype some of the boards. I used to work extensively with these post-Proteon and now remember almost nothing about them.

17 years, 5 months

Identifying Ultrix media

by oldcpu2＠rogerwilco.org

On 18 Nov 2008, Curtis H. Wilbar Jr. said: > While cleaning, I dug up some ULTRIX CDs I didn't know I had. > > Curious as to find out exactly what I have and if it is complete... > > [...] > > Does this mean I have Ultrix 4.2 for VAX and RISC, > Ultrix 3.1 for FAX and RISC, Ultrix 3.1 Update ? > What is Ultrix WS 2.0 (windowing system?) ? > > Trying to figure out what I have here and how complete/ > incomplete it is. I'm no expert, but I've done a little ULTRIX sleuthing myself over the last couple of years, learning more about ULTRIX and how to use it on my c. 1990 DECSystem 5400, which is RISC-based. From my experience, primarily with with ULTRIX 4.5, 4.3, and 4.2, I'd say that the 4.2 discs, one each for VAX and RISC, would be considered a 'complete set' for each architecture. The online documentation disc is probably a companion for either or both of these 4.2 install discs. I'm not acquainted with the earlier releases (though I'd like to be), but it would appear that the ULTRIX-32 V3.1 with UWS V2.2 should be considered complete (for both VAX and RISC) since you have both the ULTRIX OS + UWS on the one disc, which also looks to supersede the ULTRIX-32 V3.1-UWS V2.1 UPDATE disc. As for the V2.0, I have no idea if you have a complete ULTRIX + UWS package, or if it is just the UWS. - Jared

17 years, 5 months

What is this system?

by aek＠bitsavers.org

"Advanced Micro Computers Inc Microprocessor Development System 29/05" It is a multibus CP/M system for development of 2900 microcode. There were cards available for downloading of microcode to a target system, and a microassembler. docs under http://bitsavers.org/pdf/amd/amsys29 I have a bunch of docs scanned for this system, and the software. You're the first person I've heard about coming across one of these in a long time.

17 years, 5 months

Gould Concepts

by wdonzelli＠gmail.com

There are apparently some ex-Sikorsky Gould Concept superminis as a recycler in the Northeast available. The total weight of the few (three?) systems could be a ton and a half. Is there any interest? RCS/RI is going to pull the VAX 11/785 out of the pile. -- Will

17 years, 5 months

LIFE Magazine images

by silent700＠gmail.com

Google has archived the LIFE photo collection. There is much to be mined here, like this extremely serious business: http://images.google.com/hosted/life/f?q=ibm+source:life&imgurl=97ab81b6fc3…

17 years, 5 months

Offer: Creative Labs Sound Blaster Card "collection"

by wpileggi＠juno.com

It's the end of my fall clean-up, and I've decided to discontinue "collecting" Creative Labs Sound Blaster Cards any more; though the proper term might be "accumulate"... Roughly 1991-1997, ISA. [I have a bunch of PCI cards if you need them...] Been doing this for the last 10 years or so. I have a list of models and part numbers, please email me off-list request a copy. Anybody else 'collecting' Sound cards? I don't have a price, is there a market? I also have a list of VGA Video Cards/ISA/PCI/AGP...Bill KA3AIS ____________________________________________________________ Planning for retirement? Click for free information on 401(k) plans. http://thirdpartyoffers.juno.com/TGL2131/fc/PnY6rbt6R8Bo4vP30oTPJzrI7KVFmcj…

17 years, 5 months

AT&T 7300/3B1's (was: Re: Who is vintagecomputermuseum?)

by mtapley＠swri.edu

At 20:05 -0500 8/17/08, Dave wrote: > I have to agree there. And $500 for a 7300 is a tad on the high >side. I had three of them (two 3B1s and a 7300) and reluctantly >parted with one. I became much less reluctant when the guy offered >me $300. The first machine is one I will keep even if the prices go >sky high, as it was given to me years ago by a classiccmp member (hi >Mark!), although for the life of me I have no clue where the mouse went. > > Does anyone have disk images of the 7300/3B1 OS distribution? Hi Dave, but IIRC, I just put you in contact with Robert, who gave you one of his. Though he got some of his from me, so it may have been indirectly one of my machines... If it were mine, and I'd given it to you, I'd have no objection to your selling it for as much as you can possibly get for it. My theory is, the more value it acquires (by somebody paying for it) the less likely it will be to get scrapped, hence the more likely it'll be to be preserved. On the other hand, I *know* you are a knowledgeable collector and know which end of the soldering iron gets hot without having to grab it, so I'm happy it's in your hands. One reason for me to take this philosophy is that I don't have time to do myself the things I'd really like to do with my collection - like imaging floppies! I have 'em, but not imaged. They are in climate-controlled storage - that's the best I can say for myself. I'll hunt for mice. I don't think I kept a spare, but if I did, I'll let you know. -- - 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.

17 years, 5 months

differences SA1000, ST506

by lehmann＠ans-netz.de

Hi, I wonder if a ST506 drive can be used without problems on a SA1000 interface controller. The signals seems to be the same, but ST506 is working on a slightly higher transfer rate. Would it work with a 50 -> 34 pin adapter cable? Did even someone has experience in it? Seems hard to find SA1000 disk drives nowadays... -- Oliver Lehmann http://www.pofo.de/ http://wishlist.ans-netz.de/

17 years, 5 months

What is this system?

by roger.holmes＠microspot.co.uk

Now I have more space in my computer room my elder brother offered me two systems he picked up some years ago. I don't know much about either, but bitsavers has references to one, which is a Texas Instruments 990 with twin 8 inch floppies and a terminal. I have not tried powering it up yet and I dont have any boot disks but it looks interesting. It has a 12 or 13 slot chassis with most of the standard cards present except no printer card. Is this rare, can I get boot disks, would anyone want to buy it, what can I do with it? Much the same questions for the second system but also, what is it. It too has two 8 inch floppy drives, two volumes of manuals for Xenix but no floppies. It is marked "Advanced Micro Computers Inc Microprocessor Development System 29/05". There is a sticker saying Memec Systems Ltd. The front panel is divided into two, one says "Support processor" and the other "Microprogrammed system". Could this really be a proper microprogrammable system or is it just system using a microprocessor. Either way, which programming/microprogramming architecture is it? Any relation to the AMD 2900 bit slice chips? For a couple of months I wrote microcode back in about 1974 but not on this system.

17 years, 5 months

Model M - Type 7 cross

by dgriffi＠cs.csubak.edu

Would anyone here be interested in rallying for a ruggedised Type 7 keyboard? I'm thinking of something built like a Model M. -- 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?

17 years, 5 months

Microvax II chassis for trade

by rescue＠hawkmountain.net

js at cimmeri.com wrote: > *You've got a bare BA23 that you're looking to trade for the BA23's pedestal enclosure? > * No. I have a BA123 that I'm looking to trade for 'skins'? for a BA23. I have basically an 11/83 as removed from a 'small' rack such as this: http://hampage.hu/dr/kepek/H96XX.jpg And want to have it be like: http://hampage.hu/dr/kepek/ba23mvII.gif I'd imagine the BA23 as removed from the rack is what is at the core of the deskside/desktop BA23.... So, I'm looking to trade the BA123 for skins, or an empty desktop/deskside BA23. -- Curt > * > Is your 11/83 in a BA23 also? > > *Date: Tue, 18 Nov 2008 01:03:29 -0500 > From: "Curtis H. Wilbar Jr." <rescue at hawkmountain.net> > Subject: Microvax II chassis for trade > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Message-ID: <49225AB1.6060007 at hawkmountain.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > I have a Microvax II chassis (no qbus boards installed) that I've > decided I am not going to use. > > Would like to trade it for the plastic? deskside enclosure for > my PDP-11/83 (which came out of a rack). > > Anyone local to Sharon, MA (or Cambridge, MA) interested in > trading ? > > -- Curt

17 years, 5 months

Another NASA recovery story

by ken＠seefried.com

bfranchuk at jetnet.ab.ca wrote: > > And what was NASA doing for the last 30 years ???. Hubble. Galileo. Cassini. Chandra. Deep Impact. Swift. MRO. Spirit. Opportunity. Pheonix. Viking. Messenger. Lunar Prospector. NEAR. Spitzer. ISS. Ulysses. Voyager. Terra. > > It seems once MAN landed on the moon, NASA has been a complete > > flop Obviously. KJ

17 years, 5 months

NorPak???

by Reid.Allen＠eni.com

Norpak was a logic device that used only 'NOR' gates. It preceded the PLC concept. The gates were hardwired. Since any logic function can be created using negative Boolean operators (NOR or NAND) they were usable for solid state control systems in place of relays. We used a Norpak system at the San Francisco International Airport on a plane fueling system in the middle 1960s. They had 10 NOR gates per module, and we wired modules using something like #20 AWG wires with some kind of termination on the end that could be inserted into the Norpak units. One had to be very careful using the units because after the various functions and their arrangement had been designed there were often redundant gates in series that could be eliminated, but this caused transparency of design to be lost. I was working for the Standard Oil Company of California in those days down on 225 Bush Street. Reid C. Allen, P.E. Roberts & Schaefer 10150 South Centennial Parkway #400 Sandy, Utah 84070 Reid.Allen at eni.com Tel: 801.984.0900 Ext. 210 Fax: 801.984.0909 Cell: 801.634.5640 NOTICE: This e-mail message and all attachments transmitted with it are intended solely for the use of the addressee and may contain legally privileged and confidential information. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, copying, or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately by replying to this message and please delete it from your computer.

17 years, 5 months

Microvax II chassis for trade

by rescue＠hawkmountain.net

I have a Microvax II chassis (no qbus boards installed) that I've decided I am not going to use. Would like to trade it for the plastic? deskside enclosure for my PDP-11/83 (which came out of a rack). Anyone local to Sharon, MA (or Cambridge, MA) interested in trading ? -- Curt

17 years, 5 months

Identifying Ultrix media

by rescue＠hawkmountain.net

While cleaning, I dug up some ULTRIX CDs I didn't know I had. Curious as to find out exactly what I have and if it is complete... ULTRIX WS V2.0 (VAX) SUPPORTED/UNSUPPORTED February 1989 AG-ND76A-RE U-32 V3.1/UWS V2.2 (VAX/RISC) Supported/Unsupported Disc 1 of 1 January 1990 AG-PB5SA-RE ULTRIX-32 V3.1-UWS V2.1 (VX-RSC) UPD June 1989 AG-NJ50A-RE ULTRIX Online Documentation Library Diskc 1 of 1 December 1991 AG-PEZBH-RE ULTRIX and UWS V4.2 SUPP/UNSUPP (VAX) Includes Mandatory UPG Disc 1 of 1 June 1991 AG-ND76D-RE ULTRIX and UWS V4.2 SUPP/UNSUPP (RISC) Includes Mandatory UPG Disc 1 of 1 May 1991 AG-MM16F-RE Does this mean I have Ultrix 4.2 for VAX and RISC, Ultrix 3.1 for FAX and RISC, Ultrix 3.1 Update ? What is Ultrix WS 2.0 (windowing system?) ? Trying to figure out what I have here and how complete/ incomplete it is. Thanks, -- Curt

17 years, 5 months

govliquidation.com raises minimum bid from $50 to $150

by legalize＠xmission.com

Has anyone else noticed this? For all the items in Utah being auctioned, the minimum bid is now $150. That moves most of the stuff out of the bargain category, IMO. $150 for a 20 year old oscilloscope in unknown condition with no probes or manuals? I can do better on ebay. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 5 months

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