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

4 PDP-11's found (plus RK05's) and VAX 7000 !

by msokolov＠ivan.Harhan.ORG

Fred N. van Kempen <waltje(a)pdp11.nl> wrote: > > Noone wants the boards ??? > Nope. I do! Though I won't be able to do much with a VAX 7000 because of how DEC mucked up its architecture unfortunately (using an Alpha bus in a VAX etc.), I would be interested in any and all XMI and/or VAXBI boards. MS

22 years, 7 months

2
1
0 0

Cromemco SCC Eproms

by rmu_scada＠yahoo.com

>On Jan 20, 14:23, Joe Abbott wrote: >> Does anyone have images of Rom 0 and Rom 1 for >>Cromemco SCC S100 single board Z80 computer? after which, Pete wrote: >I'm very disappointed to find my SCC's single EPROM appears to be >something the previous owner made for his own purposes -- it only has >36 bytes of code in it. Sorry, Joe. I guess this one was bought >without the monitor/BASIC ROMs, which were optional. Just my luck! Thanks anyway, Pete. Hopefully someone out there will be able to help. I'd bet yours contains the code to disable the onboard roms and jump to the floppy boot rom. My System Zero manual mentions this and lists the asm code as well as a hardware mod. Might be why there doesn't seem to be many of these roms around. Joe __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes http://hotjobs.sweepstakes.yahoo.com/signingbonus

22 years, 7 months

1
0
0 0

What is this? Hitachi board and IC

by rigdonj＠cfl.rr.com

I found this in a pile of scrap boards the other day. <http://www.classiccmp.org/hp/misc/hitachi.jpg>. It looks like it might be some kind of evaluation board. Does anyone know exactly what it is? It has the Hitachi logo on it along with the number H40LCEV00/133. The ZIF socket contained the IC at the bottom. It's a Hitachi HD44857E. I haven't been able to find out what it is either. Joe

22 years, 7 months

1
0
0 0

Iomec disc drive?

by aek＠spies.com

> I don't have a reference for exactly "DT uL909759" -- I'm in the process of scanning the 1969 f data book and have finished the logic part. The scan will be up at www.bitsavers.org/pdf/fairchild/_dataBooks later today.

22 years, 7 months

5
8
0 0

Data 1/0 Expansion Ram Board?

by rigdonj＠cfl.rr.com

Found this today. It's about 6 1/2" x 7" and has 8 30 pin SIMM sockets and a 60 pin ribbon cable header on it. It's marked 701-2214-001. Does anyone know which Data I/O machine it's for? Joe

22 years, 7 months

2
4
0 0

Advice on using SVGA monitor on SGI?

by rigdonj＠cfl.rr.com

I have a SGI Indigo and Indigo II along with a pile of Sun stuff. I'm wondering if I can replace all the funky monitors with one modern multisync SVGA monitor. Anybody know of any reason that this won't work, or have any recommendations about what kind of video adapter I need or where to get one? (13W3 to SVGA). Joe

22 years, 7 months

8
9
0 0

M7891 switch settings? (unibus)

by brad＠heeltoe.com

Does anyone have a manual for an M7891 (128kx18 MOS memory)? What at the switch settings? or more specifically, what do the 9 pos & 4 pos switches do? (address, no doubt) I have one which shows a red light when I try to read/write from the console odt. I just want to make sure the switches aren't set incorrectly before I declare it broken. And are their any prints on the net? (I couldn't find any) thanks! -brad

22 years, 7 months

2
2
0 0

Data I/O System 19

by aek＠spies.com

>Ok, who was it that said they had information on >one of these? www.bitsavers.org/pdf/dataIO

22 years, 7 months

1
0
0 0

Modern Tube computing

by dwight.elvey＠amd.com

Hi Actually the thought of a tube based computing isn't all that far fetched. I read an article about creating tiny tube circuits that use emission form a tiny nano wires end to create free electrons that can then be used for things like gates or flipflops. The voltages and power levels are quite small. Still, I find it hard to see how even a small tube can work faster than a 90 nm transistor. The biggest speed issue we have today is the external wiring and not the gate speeds. Dwight

22 years, 7 months

2
1
0 0

Cromemco SCC Eproms

by pete＠dunnington.u-net.com

On Jan 20, 14:23, Joe Abbott wrote: > Does anyone have images of Rom 0 and Rom 1 for > Cromemco SCC S100 single board Z80 computer? I'm very disappointed to find my SCC's single EPROM appears to be something the previous owner made for his own purposes -- it only has 36 bytes of code in it. Sorry, Joe. I guess this one was bought without the monitor/BASIC ROMs, which were optional. So now we both want an MCB-416 EPROM set (or images). On the plus side, I've found a 4FDC floppy controller manual (and a couple of 16FDC manuals). I'd like to get the 4FDC manual scaneed. Could anyone in the UK do this for us? It's 46 8.5" x 11" pages, plus one double size schematic. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
0
0 0

Modern Tube computing

by dwight.elvey＠amd.com

>From: "R. D. Davis" <rdd(a)rddavis.org> > >Quothe John Lawson, from writings of Tue, Jan 20, 2004 at 03:55:27PM -0500: >> And no one has had the utter madness to suggest a replica of the Mark I >> or II relay machine..... or the SSEC.... or any of the Bell System relay >> computers.... > >Relays don't normally glow, alas, but they do make nice sounds. > >My preference is for a digital computer using water instead of >electricity, but no one's mentioned one of those yet. > Hi Actually I've given quite a bit a thought about making a computer that uses marbles instead of electricity or water. You'd put a bucket of marbles at the top and turn the crank. Gravity would bring the mrbles to the bottom where one could scoop them up and recycle. Dwight

22 years, 7 months

4
4
0 0

Advice on electrostatic deflection CRT ?

by melamy＠earthlink.net

forgive any inaccuracies to those who may know better (or can remember better...)... what you will be interested in finding out is the deflection per inch voltage required for the beam deflection. I seem to remember ranges of 10-50 volts per inch. You will need to know the filament voltage of course and its amperage. What I don't recall is what the necessary acceleration element voltages were. The grid was used to control the beam brightness with a greater negative voltage with regards to the other elements dimming the beam (I think). The electrostatic plates should have the beam in center with zero volts and then deflection is accomplished by positive and negative voltages. If you can not find precise data then you can find the full deflection voltage by experiment once you have a center beam. I suspect that the long tube should give you a more sensitive tube in that the deflection voltage may be on the low end of the range. best regards, Steve Thatcher Original Message: ----------------- From: Tom Uban uban(a)ubanproductions.com Date: Wed, 21 Jan 2004 09:50:46 -0600 To: cctalk(a)classiccmp.org Subject: Advice on electrostatic deflection CRT ? Hello, I have what I believe is a custom CRT. It has a 12" round face, is approximately 20" long, and uses electrostatic deflection. It was manufactured by Thomas Electronics Inc. in Wayne NJ and is hand marked as model number 12E35P31, 12-2-78. I am hoping to put this CRT into service and need to come up with a set of specifications which will likely work with it. What other physical information do I need to take from the CRT in order to help determine the specifications? Any suggestions for creating the power supply and deflection drive electronics are welcome. Thanks! --tom -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ .

22 years, 7 months

3
2
0 0

M7891 switch settings? (univus)

by aek＠spies.com

www.bitsavers.org/pdf/dec/pdp11/MP00672_MS11L_engDrw.pdf

22 years, 7 months

1
0
0 0

power cord for 11/34?

by pete＠dunnington.u-net.com

On Jan 21, 11:56, Brad Parker wrote: > > The end of the power cord is snipped off this 11/34a I have in front of > me... > > It has a blue wire, a brown wire and a green striped wire. > > I'm assuming the green striped is ground. Brown hot and blue neutral? > > (I think this is a standard, but I shy away from voltages above 48vdc :-) That is indeed the standard in Europe. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
0
0 0

4 PDP-11's found (plus RK05's) and VAX 7000 !

by msokolov＠ivan.Harhan.ORG

Fred N. van Kempen <waltje(a)pdp11.nl> wrote: > Nobody wanted the VAX 7000, so I'll try to take some pictures of it, > before it visits the Evil Melter. Well, if no one can take the whole machine, can you at least pull all XMI (and VAXBI if any) cards out of it before it's melted down? I would want those, and would even be willing to pay for them (depending on what it has, if any). MS

22 years, 7 months

1
0
0 0

Advice on electrostatic deflection CRT ?

by dwight.elvey＠amd.com

Hi He can most likely test it out by jumpering it into an oscilliscope. Most use electrostatic deflection. Dwight >From: "melamy(a)earthlink.net" <melamy(a)earthlink.net> > >forgive any inaccuracies to those who may know better (or can remember >better...)... > >what you will be interested in finding out is the deflection per inch >voltage required for the beam deflection. I seem to remember ranges of >10-50 volts per inch. You will need to know the filament voltage of course >and its amperage. What I don't recall is what the necessary acceleration >element voltages were. The grid was used to control the beam brightness >with a greater negative voltage with regards to the other elements dimming >the beam (I think). The electrostatic plates should have the beam in center >with zero volts and then deflection is accomplished by positive and >negative voltages. If you can not find precise data then you can find the >full deflection voltage by experiment once you have a center beam. I >suspect that the long tube should give you a more sensitive tube in that >the deflection voltage may be on the low end of the range. > >best regards, Steve Thatcher > > >Original Message: >----------------- >From: Tom Uban uban(a)ubanproductions.com >Date: Wed, 21 Jan 2004 09:50:46 -0600 >To: cctalk(a)classiccmp.org >Subject: Advice on electrostatic deflection CRT ? > > >Hello, > >I have what I believe is a custom CRT. It has a 12" round face, is >approximately 20" long, and uses electrostatic deflection. It was >manufactured by Thomas Electronics Inc. in Wayne NJ and is hand >marked as model number 12E35P31, 12-2-78. > >I am hoping to put this CRT into service and need to come up with a >set of specifications which will likely work with it. What other >physical information do I need to take from the CRT in order to >help determine the specifications? > >Any suggestions for creating the power supply and deflection drive >electronics are welcome. > >Thanks! > >--tom > > >-------------------------------------------------------------------- >mail2web - Check your email from the web at >http://mail2web.com/ . > > > >

22 years, 7 months

1
0
0 0

neat 20 year birthday of the mac page! http://www.digibarn.com/stories/mac20/index.html

by esharpe＠uswest.net

http://www.digibarn.com/stories/mac20/index.html

22 years, 7 months

1
0
0 0

FF: IBM Displaywrite 5, and CA Supercalc 5

by julesrichardsonuk＠yahoo.co.uk

Any takers for these before they go to landfill? Both are boxed with manuals and 3.5" media. Cambridge, UK... as y'all know :) cheers Jules

22 years, 7 months

1
0
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Fujitsu M2294p drives & interfaces

by ken＠seefried.com

From: "Pierre Gebhardt" <cheri-post(a)web.de> >...but what interface describes the "p" at the end of the model >description ? IPI? Lack of doco on the net makes me think it might be some sort of custom OEM interface, however. >Somewhere in the Internet it says that B stands for SCSI-4000, but what >is SCSI-4000 exactly ? Longshot: Perhaps that refers to the Adaptec ACB-4000 interface in some way. It's an proto-SCSI to MFM adapter. Ken

22 years, 7 months

1
0
0 0

Switch specs for Compupro/Godbout Econoram XIII

by dwight.elvey＠amd.com

Hi Frank Good to here from you. It sounds like I have a XIIIA even though the silk screen doesn't say so, the switch configuration matches. I'll see if this brings the boards to life. Dwight >From: "Frank McConnell" <fmc(a)reanimators.org> > >Dwight K. Elvey wrote: >> Anyone have the switch specs for this board? > >XIII or XIIIA? In either case, yes. > ---snip---

22 years, 7 months

1
0
0 0

Televideo 950 and DEC VT-100 keyboard photos wanted

by TRASH3＠splab.cas.neu.edu

I have a clean vt-100 terminal and keyboard. I can try to scan it, but you will have to live with the yellow numbers on the blank spot where an Id is found, and the VAR sticky label on it. Let me know if you don't find something else suitable joe heck

22 years, 7 months

2
1
0 0

Economical international freight

by wmaddox＠pacbell.net

I have located several vintage minicomputers that I would like to add to my collection, being offered for a quite reasonable price. Unfortunately, they are currently located in the UK. Shipping for a CPU that I estimate weighs between 25 and 30kg via UPS or Federal Express works out to about US $250. If I go that route, I'll be paying 3/4 of the total cost of the deal on freight, for a one-week delivery time via air. Let's say that I'm perfectly happy to wait a month or two for the machines to arrive slowly on a boat. What options are available? I'd be interested in hearing anyone's experiences in getting large heavy items shipped overseas as economically as possible. Thanks, --Bill

22 years, 7 months

2
1
0 0

Fujitsu M2294p drives & interfaces

by cheri-post＠web.de

Hi guys, on ebay Germany, a Fujitsu M2294p drive is being sold. http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=3268253232&category=42794… The thing is that I can't figure out what interface it has. E stands for ESDI S(A) for SCSI B for SCSI-4000 ...but what interface describes the "p" at the end of the model description ? By the way, a Fujitsu M2235B found his way into my collection. Somewhere in the Internet it says that B stands for SCSI-4000, but what is SCSI-4000 exactly ? Any kind of industrial SCSI-interface ? I've never seen one before. Thanks in advance for your hints. Pierre ______________________________________________________________________________ Erdbeben im Iran: Zehntausende Kinder brauchen Hilfe. UNICEF hilft den Kindern - helfen Sie mit! https://www.unicef.de/spe/spe_03.php

22 years, 7 months

2
1
0 0

Advice on electrostatic deflection CRT ?

by uban＠ubanproductions.com

Hello, I have what I believe is a custom CRT. It has a 12" round face, is approximately 20" long, and uses electrostatic deflection. It was manufactured by Thomas Electronics Inc. in Wayne NJ and is hand marked as model number 12E35P31, 12-2-78. I am hoping to put this CRT into service and need to come up with a set of specifications which will likely work with it. What other physical information do I need to take from the CRT in order to help determine the specifications? Any suggestions for creating the power supply and deflection drive electronics are welcome. Thanks! --tom

22 years, 7 months

1
0
0 0

Odd PDP-11 tape related question

by healyzh＠aracnet.com

I've got a TPC image, that was originally from a MM: drive, and I've written it back out to a MU: drive (4mm in this case). I'm just trying to read the tape, I'm not trying to do anything fancy like boot from it. Is there any reason that I should have trouble doing this? Zane -- -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast | | | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

22 years, 7 months

5
14
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ATR-8000 & other miscellania acquired today

by damosan＠comcast.net

> Much more difficult to use? Yea, that DIR command is *complicated*. You have to view it in the context of the standard Atari DOS commands of the time. CPM was loads more difficult than the standard Atari DOS command set -- if you could even call it a command set. :) --- Damo

22 years, 7 months

1
0
0 0

Data 1/0 Expansion Ram Board?

by aek＠spies.com

It's marked 701-2214-001. Does anyone know which Data I/O machine it's for? -- A Unisite

22 years, 7 months

3
2
0 0

Apple RGB monitor

by aw288＠osfn.org

I have an AppleColor RGB monitor taking up space. This is the 12" (or so) tube used with the IIgs, and connects to the machine with the Dmumble cable (I can't remember how many pins - might be 15). This worked last time I tried it out, about two months ago. Anyone need it (with the cable) for a big five bucks? Shipping from 10512. William Donzelli aw288(a)osfn.org

22 years, 7 months

3
2
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TE16 capstan roller is very sticky -- what to do?

by GOOI＠oce.nl

Hi all, I saw on eBay an auction for one TE16 tape drive capstan wheel. I have two TE16's in my collection (www.pdp-11.nl) and when I moved them to my new museum (check "The making of ..." link), I noticed that one capstan is orange colored and has white mold stips on it, and the other capstan is black colored and is very sticky ... :-( I have read about went-goo capstans of the TU58 recently. Should I go for the auction? The problem is that this is a short term solution, and just for *one* of my tape drives. Is there an other option, preferably a better one to solve the capstan problems? tnx, - Henk, PA8PDP

22 years, 7 months

1
0
0 0

ot: adf scanners

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

A bit ago there was some chat about ADF scanners, and cheap sources. Just spotted a raft of second user HP ADF scanners at one of my occasional suppliers. At prices from ?35 (+ Carriage + VAT, min order ?70 so you could get a couple of PCs to go with it..) they seem fairly reasonable. I've had good experiences with their after sales service too. They mostly do ex-corporate stuff, so have lots of older PeeCee and similar server kit available should you want anything along that line. http://161.58.154.50/cgi-bin/osa/ViewPage.cgi?templateName=category.htx&cat… (or if that's too long, www.concordeuk.com click "online auction" then "online store") no affiliation, just a customer. Rob

22 years, 7 months

1
0
0 0

Cromemco SCC Eproms

by pete＠dunnington.u-net.com

On Jan 20, 14:23, Joe Abbott wrote: > Does anyone have images of Rom 0 and Rom 1 for > Cromemco SCC S100 single board Z80 computer? My > manual states first half of Rom 0 contains monitor > progrom and remaining Rom 0 and Rom 1 contain 3k Basic > Interpreter. Source code or hex listing would be OK > too. I believe Eproms were part no. MCB-416 and they > are 2716s. I have a Cromemco SCC, but I'm afraid mine only has the first EPROM (yes, it's an NEC 2716). I can dump the data from that. It seems I also want the second half. Anyone else got it? -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
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the museum was just given a nice IBM PC that is a luggable need ads and info!

by esharpe＠uswest.net

the museum was just given a nice IBM PC that is a luggable... sort of like a compact! have not seen many of these... are they scarce? would like to find any advertising material or manuals etc that would complement it in the IBM display... had not really planned on having each and every model on display but this is kinda cute... let us know if you have any related or scans of related stuff! Thanks Ed Sharpe archivist for SMECC Please check our web site at http://www.smecc.org to see other engineering fields, communications and computation stuff we buy, and by all means when in Arizona drop in and see us. address: coury house / smecc 5802 w palmaire ave glendale az 85301

22 years, 7 months

1
0
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In Memoriam...James M. Early

by esharpe＠uswest.net

see more at the home page www.smecc.org In Memoriam...James M. Early Jim was a friend of the museum and a mentor to me during the formation of it back in the days it occupied some shared space with Computer Exchange Inc. in the old industrial part on Desert Cove in Phoenix Arizona. Jim wrote several articles and spent extensive time editing on Volume #2 and #3 of "VINTAGE ELECTRICS. His background at Bell Laboratories proved invaluable when we cataloged some of the more obscure artifacts in the K. D. Smith Collection. K. D. Was his first supervisor at Bell Laboratories. His words always possessed wisdom and humor, Jim we will miss hearing you... -Ed Sharpe, Archivist for SMECC Thanks Ed Sharpe archivist for SMECC Please check our web site at http://www.smecc.org to see other engineering fields, communications and computation stuff we buy, and by all means when in Arizona drop in and see us. address: coury house / smecc 5802 w palmaire ave glendale az 85301

22 years, 7 months

1
0
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Aquarius II on eBay didn't sell at over $400

by jrkeys＠concentric.net

Check it out http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2779174663

22 years, 7 months

9
15
0 0

Switch specs for Compupro/Godbout Econoram XIII

by dwight.elvey＠amd.com

Hi Anyone have the switch specs for this board? Thanks Dwight

22 years, 7 months

2
1
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Foothill College ham swap on TV

by vcf＠siconic.com

I'm watching this program called Mythbusters on the Discovery Channel where they examine various contemporary myths or urban legends and either debunk or confirm them. The first was various myths about microwave ovens. They actually perform the various myths (putting in a spoon, fork, aluminum/aluminium foil) on camera in a sort of scientific way. The second myth is Lucille Ball recounting how the fillings in her teeth caused her to pick up radio signals from a local radio studio. So to test this, they needed to build a radio transmitter. They showed the team heading over to Foothill College (local Silicon Valley college) for the famous 2nd Saturday of the month ham swap. They even described it as "legendary" (it is). They showed various scenes of scrounging and some of the nerds there and one was even someone I know(!) (It was Barry Tuttleman for you locals) Kinda cool. -- 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 ]

22 years, 7 months

1
0
0 0

Free To a good home.

by cvisors＠carnagevisors.net

Hi, I have an Commodore 128D that I have had for about 5 years or so, that I have done absolutly nothing with, and I would love if there was some one, who would like it. the only issue is that it would be pickup only, and I am in Melbourne, Australia. Benjamin

22 years, 7 months

1
0
0 0

"ON-TV"......

by erich＠langrafix.net

Dear Dan Veeneman, Do you have any old "ONTV" boxes (descramblers/receivers) that you'd like to sell -- I'm a young collector of odd media from my youth and I'd really love to get a hold of one of these things to put on top of my TV. Thanks in advance! Eric www.langrafix.com 773.486.9673 I found you here from an "ONTV" search on google: http://www.classiccmp.org/pipermail/cctalk/2002-June/002738.html

22 years, 7 months

1
0
0 0

Digital 'Hierach Storage Contrller' HSC70 - What is it?

by jplist＠kiwigeek.com

There's one of these puppies on eBay right now, I spotted it in my wanderings, and out of curiousity I went to look it up on Google - and didn't find much at all to explain WHAT the thing actually is. I find "Hierach Storage Controller" and something about it being a "Mass storage controller" - but not much more. It's a hell of a best for being an overblown HBA... What is it really? Whats this about a hierachy? :P Thanks folks; The ever curious JP

22 years, 7 months

2
1
0 0

DEC MINC-11 question

by Steven_R_Hutchins＠Raytheon.com

It looks like docs are for a MINC -11 to me , ....Docs match what I have. JP Hindin <jplist(a)kiwigeek.c To: Al Kossow <aek(a)spies.com> om> cc: classiccmp(a)classiccmp.org Sent by: Subject: Re: DEC MINC-11 question cctech-bounces@cla ssiccmp.org 01/19/2004 07:26 PM Please respond to "General Discussion: On-Topic Posts Only" On Mon, 19 Jan 2004, Al Kossow wrote: > The engr drawings for the MINC are up now at > www.bitsavers.org/pdf/dec/qbus/MP00652_MNC11engrDrw_1978.pdf They are? Sure looks like a 404 to me. -JP

22 years, 7 months

1
0
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DEC MINC-11 question

by Steven_R_Hutchins＠Raytheon.com

The doc's are very useful. Thanks. I have checked the power supply,it's OK. The docs are for original MINC-11. I have one with different CPU and memory ( dual Qbus cards ). Do you know where to find docs on KDF11-A (M8106)and MSV11-MB (M7506)? Tomorrow I should start looking for clock activity on some of the cards. I see a used KDF11-A at DCP in Melbourne, FL. for $66....if I go for the shotgun method of troubleshooting.;-((( >The engr drawings for the MINC are up now at >www.bitsavers.org/pdf/dec/qbus/MP00652_MNC11engrDrw_1978.pdf Hutch

22 years, 7 months

1
0
0 0

paging: Bruce Lane

by rigdonj＠cfl.rr.com

Anybody know what has happened to Bruce Lane? I've tried both of his E-mail addresses and both messages bounced. Joe

22 years, 7 months

3
2
0 0

Advice on using SVGA monitor on SGI?

by pete＠dunnington.u-net.com

On Jan 20, 20:18, Jules Richardson wrote: > On Tue, 2004-01-20 at 19:42, meltie wrote: > > On Tuesday 20 Jan 2004 12:40 pm, Jules Richardson wrote: > > 17" Iiyama Vision Masters that'll multisync up to an SGI with BNCs? > > Never tried them with an SGI, but the spec on them is pretty good - > 27-92KHz horizontal, 50-160Hz vertical, and a 160MHz bandwidth. > check university newsgroups, or local usenet groups for your area. I've > seen several crop up around here (Cambridge) in the past. A friend of mine at work has two spare SGI 17" monitors that were used with Indigos, and coincidentally he asked me this afternoon if I wanted them. He's going to chuck them if no-one does. Are these any good to you? -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
0
0 0

Identity of DEC BC20K Cable

by pete＠dunnington.u-net.com

On Jan 20, 10:02, Cynde Moya wrote: > Can anyone tell me what the BC20K is used on? According to one of my DEC optons and modules microfiche, it's a PCL11-B Y Cable. Another one says it's a TDM Bus Node Cable, 10', which fits. I'd guess it's a ribbon cable, since all the other BC20x cables are. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
0
0 0

Replacement for HP 9122C - any comments?

by john_a_s2004＠hotmail.com

Hi, The 9122C was made by HP as a HP-IB floppy drive using the SS-80 protocol (AFAIK). (I have a 9122D which I think has the same specs running on my HP-85 / HP-87 set-up using the EMS ROM). Anyway, I came across the following on Google: http://www.isa-j.co.jp/NEW/english/HP-IB/p_hpib_b.html Company claims to be making a compatible drive, but the rest of the site is in Chinese writing so I couldn't find a price. Has anyone come across this drive, or know of any other compatible drives? It's not that the 9122 series is that rare, but a modern equivalent (especially one with a 1G hard drive!) certainly is an attractive option for those still using Series 80 and other HP-IB machines 'for real' rather than tinkering with them like me. Regards, John (UK)

22 years, 7 months

1
0
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DEC systems for sale by dealer in Florida

by vcf＠siconic.com

I just found this whilst doing a mostly unrelated search: http://www.4cheapparts.com/cgi-bin/checkitout/checkitout.cgi?networkpSTORE:… If I'm reading this right, these guys have: (1) PDP 11/23 @ US$695 (1) VAX 11/730 @ US$995 (3) VAX 11/750 @ US$295 each (2) PDP 11/84 @ US$1,307.12 each ...and a plethora of other DEC gear. There's also some HP1000 series peripherals and lots of other stuff. Might be worth looking into. -- 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 ]

22 years, 7 months

8
9
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ECMA 46 tape standard

by aek＠spies.com

> I've been asked about a quarter-inch tape standard from 1976, called ECMA-46 0Bh X3.55-1982, X3.56-1986, ECMA-46, ISO 4057-1979 >from the scsi spec.. There is a copy of X3.56-1977 hiding in the back of a quantex tape drive manual that I scanned this morning. This is one of the original 1/4" tape formats, for a drive with a fixed position four-track head stack (the norm prior to what became the QIC11 moving head 4 track standard) The scan is here: www.bitsavers.org/pdf/quantex/TM1001_650_Jul81.pdf the spec is appendix A

22 years, 7 months

1
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Cromemco SCC Eproms

by rmu_scada＠yahoo.com

Does anyone have images of Rom 0 and Rom 1 for Cromemco SCC S100 single board Z80 computer? My manual states first half of Rom 0 contains monitor progrom and remaining Rom 0 and Rom 1 contain 3k Basic Interpreter. Source code or hex listing would be OK too. I believe Eproms were part no. MCB-416 and they are 2716s. Thanks in advance, Joe A __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes http://hotjobs.sweepstakes.yahoo.com/signingbonus

22 years, 7 months

1
0
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Kaypro II's

by eric＠rothfus.com

We're lucky here in Austin, TX to have the Goodwill Computer Store. They often get old classics from people and sell them for non-ePay-like prices. I was just there today, and they had 3 Kaypro II machines for $20 per machine. On a scale of 1 to 10, they were quality 5, 6, & 7 or so. Alas, no software... but it beats $50-$100 deals on ePay.

22 years, 7 months

1
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brew-your-own-unibus boards?

by brad＠heeltoe.com

der Mouse wrote: ... >Once, years ago, I was involved in building a designed-on-the-spot Qbus >board. Which raises a question I've been meaning to ask. Has anyone made their own unibus boards? Is this fool-hearty? I have half a mind to look over the "IDE for Soviet unibus" zip file I found and make my own uniboard board with a modern day CPLD and IDE interface. How crazy is that? I have 4-8 layer PCB's fabricated regularly and have a reasonable CAD setup to do that, so design, layout & fabrication is not a problem, nor is TTL design (heh, especially at unibus speeds :-) And I write VHDL for CPLD's all the time and program them. Seems like a 4 layer board with gold fingers would work - the few boards I've handled seemed pretty thick, however. I'm guessing the thickness needs to be correct. I have not (yet) looked at a unibus card schematic - would be it hard to create a bus master IDE interface? Is a unibus controller a relatively straight forward TTL design ? I should probably ask on the PUP list also, but I thougth I'd see if anyone here has opinions. And, if I did manage to create a realiable IDE interface, would anyone else want one? (I realize cost would be the overriding factor - believe it or not on small runs like I do the PCB is by far the most expensive part) -brad

22 years, 7 months

13
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brew-your-own-unibus boards?

by mouse＠Rodents.Montreal.QC.CA

> For me, at least, the hard part of designing a modern Qbus and/or > Unibus interface would be what to select for bus drivers. Well, for Qbus...there's an appendix in the KA630 document that's titled "Q22-Bus Specification". Based on that: >From the looks of it, for a driver you can use almost any open-collector TTL output - at least, a quick look at the specs doesn't reveal anything that stands out as incompatible. The receivers are a bit more interesting. The spec says that their threshold must be between 1.3 and 1.7 volts and that their high-level input current must be no greater than 80?A; it fails to give any limits on how much current they source into a low-level input, though there surely must be such a limit. Are there any bus receiver chips that have a reference-voltage pin, which could be connected to (say) 1.5V? Basically, a bunch of specialized voltage comparators? Personally, I'd be tempted to just use TTL and see if it works (LSTTL, probably, since that sources less current into low-level inputs). But of course "it works for me" isn't good enough if you're designing for other people's use. /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

22 years, 7 months

3
3
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brew-your-own-unibus boards?

by msokolov＠ivan.Harhan.ORG

Ethan Dicks <dickset(a)amanda.spole.gov> wrote: > Yes, but some devices are not so old and _do_ use ASICs. There are some > peripherals that came out at the same time as the 11/20 (~1970) that > they are made up of several square feet of TTL/Linear chips. Well, what I meant was that UNIBUS and Q-bus were designed to be implementable without ASICS using only discrete logic, and the simpler devices were implemented that way. > Unibus? 8640, 8641, 340, 8881, DC013 (custom DEC chip) > Qbus? DC003, DC004, DC005, DC006, DC010, 74LS240, 8837, 8838 > > In other words, with few exceptions, *not* ordinary TTL chips (though ISTR > one of their busses used hand-selected 7438s chosen for low (1uA?) leakage. Hmm, 74LS240 for Q-bus? It's just a standard three-state TTL inverting buffer, isn't it? For driver, receiver, or both? > designed-as-such bus drivers/receivers from companies like > National Semiconductor. Does NS still make them? MS

22 years, 7 months

3
2
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IBM PS/2 Model L40 SX

by witchy＠binarydinosaurs.co.uk

Quick question, What would folks here be prepared to pay for this machine, particularly as it's boxed and never been used? It went into the workshop to have a hard drive fitted shortly after being bought in 1992 or thereabouts and for whatever reason it sat on a shelf forever thereafter. Or is the general concensus 'oh it's just a 386SX PC running DOS 5' Pix at http://www.binarydinosaurs.co.uk/ebay/ibm/ibm.php cheers -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 7 months

5
6
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IBM 519 Punch and 083 Sorter

by vcf＠siconic.com

Only $5,500 and $4,500 respectively! What a bargain! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3072636290&category=294 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3072636344&category=294 -- 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 ]

22 years, 7 months

3
2
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Qube (warner Amex)

by CBurroughs＠aol.com

Hello Friend, I actually have an old Qube box in my closet. The weird thing is that it doesn't work on any other cable systems, except the old qube system. My unit used to work when we had the qube system. Once they shut off Qube, the unit no longer works. I remember these things from when I was a kid, that is why I have kept it. You know much about how they work? I would like to get this one to work. I have opened the unit, but see nothing wrong that would cause it to power up and then the display goes dead. Glad to see someone has the same interest in these old things

22 years, 7 months

3
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Identity of DEC BC20K Cable

by CyndeM＠vulcan.com

Can anyone tell me what the BC20K is used on? Thanks Cynde Cynde Moya, MLIS Archives Cataloguer Vulcan Inc. www.vulcan.com Office Tel. 206-223-4901 Mobile Tel. 206.369.3205 Fax. 206-223-4207

22 years, 7 months

1
0
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System programmers vs. administrators

by india_50＠yahoo.com

Hmm, well u know what, the system programmers i guess use the right side of their brain, while the admins use their left. i guess, as an admin, u need to look at individual problems and try to solve them with a more logical and rational approach while, a programmer would have to use his creativity, and intuition to be able to "design" programs/SWs. and, i'm neither of them, so no bias here!!! what do u think, curt??? > > > >Message: 1 Date: Fri, 16 Jan 2004 22:17:33 -0800 From: Ernest <ernestls(a)comcast.net> Subject: System programmers vs. administrators To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Message-ID: <1074320253.1586.16.camel@ernest> Content-Type: text/plain I was having a discussion with a friend earlier tonight about programming, and how I've never been the least bit interested in learning how to program -I'm convinced that I have a mental block against it, or something like that. As the discussion progressed, we decided that there are two types of advanced computer users -system programmers and system administrators. That in itself is debatable but where our discussion became bogged down was when we tried to decide which user was left brain, and which was right brain. We started by agreeing that programmers are artists, while the administrators are more scientific. But then, as we talked, we decided that you could make the same arguement for each side. So, I thought I would throw the discussion out here, and see what you guys think. Assuming that there really are two types of computer users -programmers and administrators- which side is left brain thinking, and which is right brain thinking? I pulled the following off some psycho-babble website: Experimentation has shown that the two different sides, or hemispheres, of the brain are responsible for different manners of thinking. The following table illustrates the differences between left-brain and right-brain thinking: Left Brain: Logical Sequential Rational Analytical Objective Looks at parts Right Brain: Random Intuitive Holistic Synthesizing Subjective Looks at wholes Most individuals have a distinct preference for one of these styles of thinking. Some, however, are more whole-brained and equally adept at both modes. In general, schools tend to favor left-brain modes of thinking, while downplaying the right-brain ones. Left-brain scholastic subjects focus on logical thinking, analysis, and accuracy. Right-brained subjects, on the other hand, focus on aesthetics, feeling, and creativity. ------------------------------ Message: 2 Date: Sat, 17 Jan 2004 12:19:54 -0500 From: "Curt vendel" <curt(a)atarimuseum.com> Subject: Re: Re: Apple 'Star Trek'? To: <freddyboomboom(a)comcast.net>, "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Message-ID: <000601c3dd1e$211f6990$1a02a8c0@starship1> Content-Type: text/plain; charset="iso-8859-1" Hmmmm.... D/L'ing now... curious to check this out :-) I have a Mac OS X 10.2 Server running in my office, so I'm curious to see how these interact... Curt ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html

22 years, 7 months

2
1
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pcb mount 2.5mm power socket

by witchy＠binarydinosaurs.co.uk

Hi folks, Has anyone got a spare 2.5mm 12V DC power socket that's PCB mounted? The one I'm replacing looks exactly like these: http://tinyurl.com/2mhkr http://tinyurl.com/3gtau I can only get 'em in packs of 10 and I don't really want to buy 10! Cheers all! -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 7 months

1
0
0 0

brew-your-own-unibus boards?

by Lee.Davison＠merlincommunications.com

> The receivers are a bit more interesting. The spec says that their > threshold must be between 1.3 and 1.7 volts and that their high-level > input current must be no greater than 80?A; > Are there any bus receiver chips that have a reference-voltage pin, > which could be connected to (say) 1.5V? You can use open drain CMOS buffers/inverters in this way by setting the supply volts to give the desired ViH point (check the data sheet but ViH * 2 is about right). The outputs are at least TTL volts tolerant used like this. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 7 months

1
0
0 0

Reply-To:

by Lee.Davison＠merlincommunications.com

> I also can't be the only Outlook 2000 user here, can I? You're not, I'm stuck with it here at work. Anyone want to check my message to see if the redundant "Reply-To:" is there > I wonder how..... I don't, because fixing software here has become a summary dismissal offence. 8^(= Cheers, Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 7 months

2
1
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Aquarius II on eBay didn't sell at over $400

by pete＠dunnington.u-net.com

On Jan 20, 0:54, Witchy wrote: > Bearing in mind a lot of mailing software ignores the 'from' field and > instead uses the 'reply-to' field instead. Well, OK, for USENET anyway :) Well, anything that replies is *supposed* to ignore the "From:" field *if* (and only if) there is a "Reply-To:". The "From:" is mandatory, the "Reply-To:" is optional. There are some other headers that may be involved but only for errors and control messages. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
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Aquarius II on eBay didn't sell at over $400

by pete＠dunnington.u-net.com

On Jan 20, 0:34, Jules Richardson wrote: > Well hang on.. surely it's legal protocol-wise for witchy to put the > reply-to field in the header for email that he sends, even though the > from: field is also present and valid? The "Reply-To:" field is supposed to override the "From:" field, and although the standard doesn't expressly forbid setting both the same, it makes it clear that there is no point unless they're different. > Isn't it a little quirky for the list software to append to any existing > reply-to field rather than overwriting it? (which for a mailing list > might seem more sensible). Not really, the standard implies that appending is correct behaviour, in case replies direct to the originator should not go to the originator's address as given in the "From:" field (eg suppose Witchy sent a message from somewhere other than his normal address, or a machine that didn't have a valid address; the "From:" would show the not-normal point of origin, the "Reply-to: would show his normal address). -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
0
0 0

brew-your-own-unibus boards?

by pete＠dunnington.u-net.com

On Jan 19, 16:24, Brad Parker wrote: > > der Mouse wrote: > ... > >Once, years ago, I was involved in building a designed-on-the-spot Qbus > >board. > > Which raises a question I've been meaning to ask. [...] > Seems like a 4 layer board with gold fingers would work - the few boards > I've handled seemed pretty thick, however. I'm guessing the thickness > needs to be correct. Small variations shouldn't matter. I've not noticed any Unibus boards being abnormally thick. > I have not (yet) looked at a unibus card schematic - would be it hard to > create a bus master IDE interface? > > Is a unibus controller a relatively straight forward TTL design ? Dunno about the DMA -- probably not hard -- but the rest is straightforward. > And, if I did manage to create a realiable IDE interface, would anyone > else want one? For low enough cost, yes, me! -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

3
4
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Aquarius II on eBay didn't sell at over $400

by pete＠dunnington.u-net.com

On Jan 19, 23:03, Witchy wrote: > > It *is* your mailer. It appears to be putting an unneccessary > > "Reply-to:" header in, and when the list software sets its "Reply-To:", > > it gets concatenated to yours instead of replacing it: > > I know microsloth stuff has a mind of its own, but if I've not changed > anything since well before pre-upgrade days and both my 'from' and > 'reply-to' addresses are the same what more can I do? But you don't need a "Reply-to:" if it's the same as the "From:" and it shouldn't really be there unless it's diifferent. > I'll have a nose through the options, but I doubt 'include from AND reply-to > address when replying to mails' is in there. It's microsloth, what more can > I say :) :-) I'm fairly sure there's a way to tell it not to include the "Reply-to:". I'll ask the M$ people at work. -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

1
0
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DEC VT520 terminals: $25 on VCM

by vcf＠siconic.com

I've listed (3) DEC VT520 terminals on the Vintage Computer Marketplace. Search for items #372-374. I'm asking $25 each. These are fantastic multi-purpose terminals. Check out the listing descriptions for more information. -- 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 ]

22 years, 7 months

1
0
0 0

Estimated Value of an ASR-33....

by david＠dynamicconcepts.us

Looking for peoples estimate of the value of an ASR-33 with working paper tape reader/punch (and of course keyboard/print), modem is quite optional. I am starting to search for one to add to my collection and am not sure what price range is reasonable these days.... Also if anyone has one that they want to sell (especially if located in North East US), please contact me directly. David Corbin dvcorbin(a)optonline.net

22 years, 7 months

2
1
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1959 Brainiac K-30 listed on ebay

by lsprung＠optonline.net

If you need one for your collection, I thought someone might find this listing of interest. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2781740056 If anyone has any other Berkeley Enterprise items for sale, please let me know. I would also like to purchase a number of other early computer artifacts. Any suggestions besides ebay? Can I submit a "want list" to this group? Thank you for your time.

22 years, 7 months

3
3
0 0

Datapoint and ARCNET

by vcf＠siconic.com

I was searching around the net for information on Datapoint the other day and came across information on ARCNET. I never realized ARCNET was still in wide use today. There is even a 100Mbit version of ARCNET over RG58(!) Check out the links below for more interesting reading and history of ARCNET: http://www.tcpmag.com/archives/article.asp?EditorialsID=58 http://www.arcnet.com/abtarc.htm -- 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 ]

22 years, 7 months

1
0
0 0

Old no-name laptop, anyone interested?

by charlesmorris＠direcway.com

I have a working "no-name" laptop (it doesn't seem to have a brand name, just "Notebook Computer" on the label) made around 1991. It's a 486-66 with a whopping 8Mb RAM, 540 Mb hard drive, color LCD screen, and a PCMCIA 33.6k modem card. It's running Win95 (albeit slowly). It works just fine for email and word processing but bogs down trying to run Web browsers (not sure if more RAM can be added or not). The battery pack won't hold a charge for more than a day or so, and the CMOS battery is dead, but aside from that everything works fine. I just bought a more modern Dell used laptop so I no longer need this "classic" ;) Is anyone interested in purchasing it cheap? Make me an offer... thanks Charles

22 years, 7 months

1
0
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DEC MINC-11 question

by aek＠spies.com

The engr drawings for the MINC are up now at www.bitsavers.org/pdf/dec/qbus/MP00652_MNC11engrDrw_1978.pdf

22 years, 7 months

2
2
0 0

brew-your-own-unibus boards?

by chrisc＠addpower.com

And, if I did manage to create a realiable IDE interface, would anyone else want one? If it came in a qbus version, I'd take one...or two. :)

22 years, 7 months

1
0
0 0

'not well' Osborne 1 mk 2

by witchy＠binarydinosaurs.co.uk

Just a quickie folks, Does anyone have the power cable pinouts for the Osborne 1 motherboard? Got one here from Kevan that doesn't boot at all - consistent garbage on the nice'n'bright screen. Before I start further messing with the beast I want to make sure it's getting enough juice. Suppose I can always check the CPU and RAM chips for +5V couldn't I - it's been powered up in this condition in the past so I'm not going to do any more damage to it :) Got to dig out my hot glue gun too - in their infinite wisdom they've glued the mountings for one of the daughterboards onto the motherboard :-/ Cheers! -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 7 months

5
15
0 0

stuff destined for trash, speak up if wanted

by jwest＠classiccmp.org

Finally cleaning out around the house, started with the PeeCee junk. It's in a pile next to the trash, let me know if anyone needs any of this, quick, I want it gone! Cost = Shipping (shipping included) :) All these are ide hard drives, most all western digital caviars, a couple quantum & fuji five 2.0gb two 2.1gb three 2.5gb five 1.6gb (figured some might want these for SBC6120 projects, probably 95% of these drives work, one or two may be bad) CTS 212AH modem - didn't know if this might be old enough to be collectable Mitsumi CD with non-ide interface card Several quad speed ide cd's a 5.25 1.2mb floppy drive Many misc cards that go in 486 type systems - serial/parallel I/O cards, sound cards, modems, etc.

22 years, 7 months

9
14
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MSCP Spec questions

by pete＠dunnington.u-net.com

On Jan 19, 9:14, Patrick Finnegan wrote: > So, is there a document anywhere that explains the 'programmatic' > interface to MSCP-type controllers (or for any particular controllers)? > And I'm looking for disk MSCP not TMSCP. Basically, I'd like something > that explains the registers, command packets, etc. for hardware like a > RQDX3 or KDA50 or... > > Any help is greatly appreciated. I tried with little luck on google > last night to find thist kind of stuff. What you need is the "UDA50 Prograsmmer's Doc. Kit", QP-905-GZ. It's not really UDA50-specific; I last used it to figure out what was wrong with the DU: driver in RT-11 5.01, such that it wouldn't work with an RQDX3 (DEC didn't follow their own protocol properly, was the answer, and the bug happened to get past an RQDX1 but not some other controllers). Mine is labelled "First Edition April 1982" and consists of: AA-L619A-TK Ver.1.2 MSCP Basic Disk Functions Manual (approx 170pp) AA-L620A-TK Storage System Diagnostics and Utility Protocol ( 46pp) AA-L621A-TK Storage System Unibus Port Description (58pp) The first deals with MSCP itself; gives an overview, a bit about the comms side of it, algorithms, message formats, and a subset of commands for disks. The second deals with DUP, which is what's used for diagnostics and formatting. The last is about the port driver, which you can think of as the layer under the class driver (MSCP/DUP). Has the MSCP patent expired, or do you still need to license it? And can you get copies from DEC/Compaq/HP, and if not, do they come under the permission DEC gave to make copies? -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

2
1
0 0

PUTR, port?

by jwest＠classiccmp.org

Any thought been given to porting PUTR to FreeBSD/Linux/Unix??? Was hoping to use it but really don't want to install a dos partition on my Unix PC. Other solutions out there? Jay

22 years, 7 months

4
3
0 0

EPROM eraser needed

by jack.rubin＠ameritech.net

Anybody have a spare eprom eraser for sale? Don't need anything fancy. Please reply direct, since I'm on the Digest mailer. Thanks. Jack

22 years, 7 months

3
2
0 0

MSCP Spec questions

by pat＠computer-refuge.org

So, is there a document anywhere that explains the 'programmatic' interface to MSCP-type controllers (or for any particular controllers)? And I'm looking for disk MSCP not TMSCP. Basically, I'd like something that explains the registers, command packets, etc. for hardware like a RQDX3 or KDA50 or... Any help is greatly appreciated. I tried with little luck on google last night to find thist kind of stuff. Pat -- Purdue University ITAP/RCS Information Technology at Purdue Research Computing and Storage http://www.itap.purdue.edu/rcs/

22 years, 7 months

3
3
0 0

Oldest Working PC?

by r_a_feldman＠hotmail.com

>From The Register: "Intel and HP find oldest working PC" (http://www.theregister.com/content/67/34933.html) "Dutch company PHI DATA yesterday received a € 18,000 prize from Intel, HP and Dutch IT weekly Computable for still owning and operating a vintage IBM 5160 (Intel 8088) computer from 1983. PHI Data uses the IBM to test matrix printers. It is now officialy the oldest obsolete-yet-active PC in the Low Countries." <snip> "When Dell ran a contest in the USA back in 1999 for the oldest small-business PC still in use, the winner was the Altair 8800b. Still running a 1960 Digital PDP-1 to do your maths? Let us know." I suspect that a number on this list can do better. Bob _________________________________________________________________ There are now three new levels of MSN Hotmail Extra Storage! Learn more. http://join.msn.com/?pgmarket=en-us&page=hotmail/es2&ST=1

22 years, 7 months

10
9
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Emulators of Classic Computers

by india_50＠yahoo.com

Message: 14 Date: Fri, 16 Jan 2004 22:15:27 -0700 From: ben franchuk <bfranchuk(a)jetnet.ab.ca> Subject: Re: Emulators of Classic Computers To: General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org> Message-ID: <4008C4EF.10003(a)jetnet.ab.ca> Content-Type: text/plain; charset=us-ascii; format=flowed Sean 'Captain Napalm' Conner wrote: > It was thus said that the Great Tony Duell once stated: > >>Steve Ciarcia's bomebrew computers (he did several -- I remember an 8088 >>system in 5 chips, a sort-of PC compatible, a Z8 board without even >>thinking about it) were based on microprocessors. But I do remember a >>Byte article on making a homebrew CPU (from TTL). I think it was called >>'EGO', and hung off a Tandy 2000. > > > I remember that. I still have the Byte magazines the EGO appeared in. > Neat CPU, made for floating point operations if I recall. > > -spc (Fondly remembers bytes from the mid 80s ... ) But it was micro programed with EPROMS. Nice idea. Ben. hey, can u also fwd me a copy of the 'EGO' article ur talking about. plss....... i need it desperately........... pls...... subs here ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html

22 years, 7 months

7
8
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DEC MINC-11 question

by TRASH3＠splab.cas.neu.edu

If I remember correctly, the MINC-11 is just a Q-bus machine with extra analog/digital I/O for laboratory work. The standard serial I/O on every DEC machine I've used has been just 3-wire (recieve,transmit, ground), XON/XOFF, 9600 baud, no parity, 8 bits. You can use Hyperterm IF you set it up for software handshaking. If you forget to change it, then the default is hardware handshaking and hyperterm will appear hung. the m8012 (BDV-11) has two switches on the edge, halt enable and restart. Halt enable is used to put it into ODT. Lights: The green led is power ok. if all 4 red leds are on, then the system is hung; halt switch or power up mode wrong. At least that is the message in the interfaces handbook. Make sure your VT102 is not in local mode, they like to switch to that sometimes. Joe Heck

22 years, 7 months

1
0
0 0

DEC MINC-11 question

by Steven_R_Hutchins＠raytheon.com

Thanks, seems like when I turned the intensity up on the CIT-101 video terminal the error was "checksum error NVR 00" and the error was there, even with the MINC-23 off. NVRAM in the terminal must be bad. I replaced the C.ITOH model CIT-101 video terminal with a DIGITAL VT-102, I get the flashing cursor in the upper left hand corner of the VT-102 with no errors in NVRAM , but the terminal does not talk to the MINC-23. I am not familiar with how the MINC communicates to the terminal. I have baud rate on VT-102 set at 9600 for both RX and TX. I do not see even an echo on my keystrokes on the VT-102. I have no docs on the terminal or the MINC. Can I use a PC running hyperterm or procomm to talk with the MINC? The M8012 boot card has 5 LEDs, red,green,red,red,red and all of them are continuously illuminated. What are the functions assigned for these LEDs? Hutch ard(a)p850ug1.demon. co.uk (Tony Duell) To: cctalk(a)classiccmp.org Sent by: cc: cctech-bounces@cla Subject: Re: DEC MINC-11 question ssiccmp.org 01/16/2004 06:26 PM Please respond to "General Discussion: On-Topic Posts Only" > > > > > > Classic comp lister's, > > I have MINC-11 ( seems to be a MINC-23 in a MINC-11 box) with the The field upgrade from MINC-11 to MINC-23 was basically just swapping the CPU card. Sounds like somebody (not DEC failed circus?) did this and didn't change the nameplate. > following: > It only has these cards inside: > M8186 CPU > M7506 MEM > M8029 RX02 DISK CONT > M7954 IEEE CONT > M8043 4510 MUX Card > M8012 Boot Card > > This was a working unit until recently when I consistantly get > "checksum error KVR 00" on bootup. That doesn't sound like a DEC bootstrap message. Are you sure it's coming >from the MINC and not from whatever you're using as a terminal? -tony

22 years, 7 months

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EPROM eraser needed

by dwight.elvey＠amd.com

>From: "John lambert" <cncmedic(a)sbcglobal.net> > >JACK --- CHEAP QUICK EPROM ERASER-- > SANYO DENKI GERMICIDAL ULTRAVIOLET LAMP > NO. G6T5 WITH ADVANCE TRANSFORMER CO. NO. LC-4-8-C >BALLAST 120 V. AN FS-4 FLOURESENT STARTER. A >RECEPTACLE TIMER TO CONTROL LENGTH OF TIME LAMP IS ON. >MOUNT LAMP 2.5 CM ABOVE PROMS LOCATION IN AN ENCLOSED >LIFT LID BOX. A LIMIT SWITCH ON THE LID TO SHUT LAMP >OFF WHEN LIFTED. SAFETY MEASURE THAT LAMP WILL BURN >YOUR RETINA'S. JACK AT ESHOP. Hi Actually it doesn't hurt your retina, it damages your cornea. This frequency of uv doesn't penetrate very far into the eye. This means that extra care is needed since it isn't just a matter of looking at the light. Any direct path from the lamp to the surface of your eye can cause damage. Most reflected uv light is attenuated quite a bit and is not as dangerous but one should still design their box to avoid reflective surfaces like aluminum. Even though 90% or so is lost, these lights are intense. Cardboard or conductive foam has about 0% reflections. One can get an idea of the reflected quantity by placing a piece of 'T'shirt near. It will glow if hit by the uv. Dwight

22 years, 7 months

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Digi Comp 1 still open on eBay

by jrkeys＠concentric.net

Someone is selling a Digi Comp 1 on eBay right now it's at $100 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3169710286

22 years, 7 months

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stuff destined for trash, speak up if wanted (more)

by msokolov＠ivan.Harhan.ORG

Jay West <jwest(a)classiccmp.org> wrote: > Also have a bunch of old pc monitors that will be hitting the trash, > not gonna post those! If there are any original IBM (not clone) VGA monitors or cards, I would be very interested, so don't trash those please! MS

22 years, 7 months

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Wyse 9000?

by stevew＠ka6s.com

Has anyone seen or do they HAVE the Wyse 9000 multiprocessor chassis? This was a machine built by Wyse around 1990 that was based on Sequent's bus technology that was a multi-processor system based on 386's or 486's running Sys V? Steve Wilson

22 years, 7 months

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Emulators of Classic Computers

by aek＠spies.com

OK, using a 1 million gate FPGA to replace a 7400 is overkill, but it would work -- Not if the FPGA isn't 5v tolerant. It isn't very likely that a device produced in five years will be useful as a replacement for 7400 series logic, much less in 50. We've left the days of logic level compatibility behind us unfortunately. 3.3v logic is even disappearing pretty quickly now, and that didn't last a decade.

22 years, 7 months

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Estimated Value of an ASR-33....

by dvcorbin＠optonline.net

Looking for peoples estimate of the value of an ASR-33 with working paper tape reader/punch (and of course keyboard/print), modem is quite optional. I am starting to search for one to add to my collection and am not sure what price range is reasonable these days.... Also if anyone has one that they want to sell (especially if located in North East US), please contact me directly. David Corbin dvcorbin(a)optonline.net

22 years, 7 months

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ASR-33 Value....

by david＠dynamicconcepts.us

Looking for peoples estimate of the value of an ASR-33 with working paper tape reader/punch (and of course keyboard/print), modem is quite optional. I am starting to search for one to add to my collection and am not sure what price range is reasonable these days.... Also if anyone has one that they want to sell (especially if located in North East US), please contact me directly. David Corbin dvcorbin(a)optonline.net

22 years, 7 months

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Foam replacement options

by rcini＠optonline.net

I pulled out my Model 100 the other day and discovered that the foam in the hard case has begun to disintegrate. The hard case is the Radio Shack original-issue hard case, so the foam is a pretty big size. I'm sure that others have experienced this already and I was searching for replacement options that didn't involve gluing together small pieces of foam to fit the case. Any thoughts? Has anyone found a foam supplier that can do small quantities? Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

22 years, 7 months

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RA81 spindle sensor

by julesrichardsonuk＠yahoo.co.uk

Ok, we took the HDA out of one of the RA81 drives yesterday. The bearings seem good - no excessive play - and we think the motor capacitor is fine. Some wear on the motor + HDA spindle pulleys, but the drive belt has a huge amount of grip so I don't think there's any belt slip problems. The front panel lights just indicate a "spin error", whilst the logic board status LEDs indicate a code of 01 - pointing at the spindle sensor. I made sure this was dust-free, but still no joy, so either it has gone bad or there's a fault with the logic board bolted to the top of the HDA itself (sensor seems more likely as we have two drives giving the same symptoms) The sensor appears to be optical in nature - with four wires (red, black, yellow and white). So: 1) Anyone know the connections to the device? If so we'll stick the output side on a 'scope next weekend and see if it outputs anything (of course we have no working unit to see what the waveform *should* look like, grr) 2) There are a couple of unknown-status RL01 and RL02 drives in store. Long shot, but anyone know if they use the same sensor in any part of their mechanism so we can do a temporary part swap with a (hopefully good) unit? 3) Anyone have a RA81 HDA in the UK that's suffered a head crash or other destruction and may yield a working sensor for us? :-) cheers Jules

22 years, 7 months

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Odd PDP-11 tape related question

by bqt＠update.uu.se

On Thu, 15 Jan 2004 "Zane H. Healy" <healyzh(a)aracnet.com> wrote: > > I just decided to test a TLZ06 on my system, and it don't want to > > work. I normally play with an Exabyte 8200, and that works just fine. > > (This on a 11/84 with a CMD controller) > > I managed to dig up a TZ30 and a couple TK50's last night, though I didn't > get a chance to try it. If an Exabyte 8200 works just fine, I think I might > try the Exabyte 8500, as I can hook it up to my PDP-11/23+ fairly easy > (hooking an external drive up to my /73 as I mentioned would require > rewiring the SCSI Bus). I just wish I'd thought to dig out a couple 8mm > tapes while I was digging. The 8500 should work fine as well, according to documentation I have. > BTW, what do you mean by "didn't want to work". Do you mean that it wouldn't > work at all with your PDP-11/84 and CMD controller? The TLZ06 works just > fine on my PDP-11/73 with Viking controller. It's just with RSTS/E ANSI > tapes that I seem to be having a problem. I just tried with RSX, using BRU, DMP and INI. With DMP I tried a tape I wrote on another machine with tar. I got some funny error. I can send you the RSX error log of the occasion, if that makes you happy. Both BRU and INI will create small blocks. Btw, I also created small blocks on the NetBSD machine I have a DDS drive on, and it went just fine there. But I did notice that someone else said that the TLZ06 will not like DDS2 tapes, which is what I had. The NetBSD box appearantly have a DDS2 drive... (since it works fine) Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

22 years, 7 months

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Field trip :)

by witchy＠binarydinosaurs.co.uk

Hi folks, Just thought I'd report in after an excellent couple of days on the vintage trail! Yesterday gave me a genuine MicroVAX I with a fully stuffed backplane I haven't investigated yet, though there's definitely the 2-card CPU, memory, RQDX disk controller (for the RD52) installed and a 4-line serial option which will probably be a DHV11. I'll find out tomorrow. The system came with a Tektronix 4019 colour display which is the biggest monitor (physically) I've ever laid eyes on I think, complete with keyboard and drawing tablet. Not sure what I'm going to do with it as yet - it's got to be a 19" screen! Apparently the RD52 has some sort of CAD package installed so I'll find out hopefully once the machine's stabilised itself to the house temperature. Also in the bundle was a boxful of Tangerine Microtan 65 bits including the machine itself (with TANEX expansion) in a lovely home-made wooden box, what looks suspiciously like an Apple ][ keyboard, full documentation and the first 30 or so issues of the Tangerine User Group magazine. More on that later. There's a handful of DEC cards too: M7944 x2 - 4K RAM M7680/M7681 - RK05 control cards M7258 - LP11 driver M7860 - DR11 driver as well as a 4-slot self-contained backplane containing: M7270 - KD11-HA LSI 11/2 CPU M7944 x2 - 4K RAM M8027 - LPV11 driver. Also several copies of the MicroVAX II diagnostic kit on RX50 and RX33 floppies as well as (I think) most of VMS V5 on RX50. I don't think there's enough disks for it to be a complete set :-/ Today brought a couple of visits, one to see Nick Toop who some of you may know was involved with many early UK home computing projects including the Science of Cambridge MK14 (supporting hardware), Acorn Atom (designer) and the should-have-been-venerable Enterprise 64 (graphics chip and supporting hardware). Lovely bloke - he sorted out my 'suspect' Atom and brought it back to life! Excellent. Second visit was to help Kevan Heydon of this 'ere list empty some of his garage with Jules Richardson, so new museum additions are a cased Ohio Superboard II (with docs), Memotech RS128 with FDX floppy subsystem (yay!), boxed NeXT Station (double yay!), 2nd Microtan 65 with extended backplane and more cards, and a CST Thor - Sinclair QL that's been massively expanded and recased. Thanks Kevan :) Faaaaaaantastic! Now where is it all going to go.... -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 7 months

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Anyone know if this story is true?

by brad＠heeltoe.com

Anyone know if this story is true? http://www.phonehelp.com/p-1-50.htm (story about bell labs experiment where handset cords are made shorter and shorter and help desk calls are monitored to find 'knee' in help call curve to use as optimal length of handset cords) certainly a little off topic - if there is a better place/list someone can suggest I'm all ears. (alt.bell-labs.stories? :-) I'm pretty gullible, so I believed it the first time I read it. I ran into it again recently at this URL... -brad

22 years, 7 months

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Emulation (Was: Emulators of Classic Computers)

by d_cymbal＠hotmail.com

All this talk about emulators has got my juices flowing again. I use emulators alot, and have always been fascinated with machine emulation. It's always been a desire of mine to code up an emulator of my own for some box but I've never been confident enough in either my coding chops or understanding of really low-level machine details to think I could pull it off (I am an application programmer by day and have done little serious system-level and below coding). Recently I've been toying with maybe trying to do something, but where to start? I picked a candidate like the Visual 1050 because my first thought was "there's alot of free existing, debugged code that can be utilized" i.e. no need to write a Z80 or 6502 core as there are quality ones available. Being a cpm machine would appear to be another plus in this area. And, I like this machine and I don't believe there is an existing emulator for it. Now the part that I'm hoping someone who has written an emulator can shed some light on: how much machine docs/specs does one need to hope to have a fair shot at pulling this off successfully? For example, I'm pretty sure that there must be some 6502 ROM code somewhere in that box that provide graphic routines services. If you had a listing of this I'm sure that you'd be that further ahead towards your goal. Or even if you knew where it was mapping into memory you could at least dump it and disassemble it. Thing is, all the docs I have are user guide/usage type things which obviously do not go into these sort of technical details. I'm sure there are those that could reverse engineer the entire machine soup-to-nuts but it certainly seems like that is trying to find the needle in the haystack (which is maybe some of the fun?). Comments?

22 years, 7 months

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why ?

by mcwood＠t-online.de

Hi, Why should I spend $333 for one 9-track tape ? http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=2779754108&category=4193 Best Regards, Marc

22 years, 7 months

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Stuff available, some free

by r_beaudry＠hotmail.com

Hello all, I have the following items available. If you want one, send me an email OFF-LIST, and include your ZIP code (for shipping quotes). I'll take emails until Wednesday morning to be fair to all. I will use my patented name-in-a-hat method to resolve multiple people wanting the same items. I will contact all winners on Wednesday afternoon. Thanks! - (*FREE* + shipping) Wilson SX-503 Disk Exerciser. Good photo at http://www.wilsonlabs.com/testers/sx530p.htm. According to the website this item tests SMD Interface Disk Drives. It's about the width of an IBM PC case, but a little shorter, and a little thicker. I guesstimate somewhere around 25lbs or so in weight. Lights up when plugged in, but I have no manual, so I cannot test. Comes with all cables seen in the photo. As a bonus, it has a "Property of U.S Gov't DOT/FAA" sticker on it :-) - (*FREE* + shipping) - Paper trays for an HP LaserJet III (no idea if they'll fit other LaserJets)... 3 Letter, 1 Envelope, 1 Legal. All are working, but very worn and used. - (*FREE* + shipping) - Tecmar expansion chassis for IBM PC. Adds 7 8-bit slots. Comes with card and cables that go in the PC. Case has some scratches and light surface rust. About the size and shape of a PC case, and weighs a ton!! Never powered it up, so it's untested and as-is. No manuals... - (*FREE* + shipping) - Two font cartridges for HP LaserJet III (no idea if they'll work in other LaserJets) "Persuasive Presentations" and "Polished Worksheets" - ($5.00 + shipping) - Pacific Page PE Postscript Emulation Cartridge for HP LaserJet. Working condition. Label on back says "010570 REV G. VERSION 4.1" and "IIP Single Slot; IID/III/IIID Left Slot" - ($20.00 + shipping) - Intel series 310 Multibus I chassis. Picture at http://www.northwesttechnical.com/multibus/chassis/syp310.jpg No drives, no cards. Just chassis, power supply, backplane. Powered up at last use, about a year ago. About the size of an IBM PC case, and quite heavy. That's it for now ... If nobody wants them, they get trashed... Rich B.

22 years, 7 months

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Foam replacement options

by pete＠dunnington.u-net.com

On Jan 18, 10:01, Richard A. Cini wrote: > I pulled out my Model 100 the other day and discovered that the foam in the > hard case has begun to disintegrate. The hard case is the Radio Shack > original-issue hard case, so the foam is a pretty big size. > > I'm sure that others have experienced this already and I was searching for > replacement options that didn't involve gluing together small pieces of foam > to fit the case. Is this foam for dust filtering? Or thin foam for holding boards in place? Or thick foam for cushioning against shock? For the first, I use the filter material sold for cooker hoods/extractors. It's cheap, available in many hardware stores and kitchen suppliers, and doesn't impede the air flow too much. It can also be pulled apart to get a half-thickness. For the other two, I go to the nearest upholstery shop, or any place that repairs furniture or car seats. They sell various densities and thicknesses, often cut to size, or in standard small quantities (like 15" or 18" square). -- Pete Peter Turnbull Network Manager University of York

22 years, 7 months

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PDP11/24 & 3 RK07 on UK ebay

by stanb＠dial.pipex.com

Hi, There's a PDP11/34, three RK07s and 20+ platters on uk ebay right now. I don't have the space or any way of transporting it so I won't be bidding, but hopefully there's someone who'll appreciate it. Starting bid is 500 gbp. 14 hrs left...no bids so far. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3070793388&category=14… -- Cheers, Stan Barr stanb(a)dial.pipex.com The future was never like this!

22 years, 7 months

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Foam replacement options

by r.mueller＠fz-juelich.de

There is some hidden wisdom here! There are several plastics used for making foam. One of these is polyurethane, others are polypropylene and polyethylene. I have often thought that manufacturers who put high valued goods in polyurethane should be responsible for the repairs even after 30 years; this stuff is often terrible, turning to either dust or paste, neither of which is good for a camera or a computer. The paste variety is very hard to completely remove. Conversely, those camping mats can be made of PP or PE, which I have never seen undergoing the transformation into a viscous liquid. You computer should still be clean after you pass it on to the next generation. Bob Message: 5 Date: Sun, 18 Jan 2004 17:49:35 +0000 (GMT) From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: Foam replacement options To: cctalk(a)classiccmp.org Message-ID: <m1AiH3K-000J2AC@p850ug1> Content-Type: text/plain > > I pulled out my Model 100 the other day and discovered that the foam in the > hard case has begun to disintegrate. The hard case is the Radio Shack > original-issue hard case, so the foam is a pretty big size. A tip I got from Amateur Photographer magazine, relating to foam for camera cases, was to use a camper's sleeping mat. They're fairly hard foam, about 1cm thick, and are larger than any carrying case I've ever seen :-). And they're not too expensive. Dunno if this would work for the M100 case, but it might be worth a try. -tony .

22 years, 7 months

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Kaypro II's available

by doc＠mdrconsult.com

Was at the local thrift tonight and there are 4 apparently intact Kaypro II units there. They want $20 each, and do not dicker. I'd be willing to schlep them and ship them for a modest honorarium. I don't know anything at all about Kaypros, and really don't care to learn, so ALL I'll check for is huge dings in the box, obviously hosed keyboards, and cracked screen. The thrift doesn't allow testing, either. Reply off-list, please. Doc

22 years, 7 months

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