- 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 months

1
0
0 0

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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 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, 2 months

5
14
0 0

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, 2 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, 2 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, 2 months

3
2
0 0

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, 2 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, 2 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, 2 months

1
0
0 0

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, 2 months

1
0
0 0

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, 2 months

1
0
0 0

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, 2 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, 2 months

2
1
0 0

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, 2 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, 2 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, 2 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, 2 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, 2 months

1
0
0 0

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, 2 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, 2 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, 2 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, 2 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, 2 months

1
0
0 0

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, 2 months

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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, 2 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, 2 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, 2 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, 2 months

13
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