test-drb

test-drb@ccmp.vtda.org

101090 discussions

by bqt＠softjar.se

"Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk> skrev: >> The 11/94 backplane shown in figure 1-2 in EK-PDP94-MG-001_Sep90.pdf >> shows a KDJ11-E M8981 in slot 1, an APS module M7914 >in slot 2, and >> slot 3 empty. Does anyone know for certain that this backplane it >> compatible with MSV11-J modules, and if >so in which slots they would >> go? > > We seem to have come down to one fudamental question. > That is to say whats the differnce between the backplane in an 11/84 and > that in an 11/94? > > I can confirm the actual systems were as stated above ie > KDJ11-E M8981 in slot 1 > APS module M7914 in slot 2 > Nothing in slot 3 > > So how can we tell if the first three slots in each type are compatible? Easy. By listening to me. :-) I have an 11/94 box, with an 11/84 CPU and PMI memory in it here, and running. It's the same backplanes, and the same Unibus map. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

19 years, 1 month

The Last of The Line

by bqt＠softjar.se

"Glen Slick" <glen.slick at gmail.com> skrev: > On 5/17/07, Rod Smallwood <RodSmallwood at mail.ediconsulting.co.uk> wrote: >> > OK we have a change >> > >>> > >PMI memory goes in slots 1 and 2, CPU goes in 3 >>> > >joe lang >> > >> > Rod >> > > > From my understanding of this after looking at various manuals this is > true for an 11/73 or 11/83 with an H9872 backplane in a BA23 box, but > not for an 11/84. Correct. So if people could stop assuming that an 11/84 have a q-bus, we would get a long way towards clearing this up. If people don't know about the 11/84 or 11/94, don't write answers based on your knowledge of the q-bus based KDJ11 setups. > Figure 8-6 in EK-PDP94-MG-001_Sep90.pdf shows a PDP-11/84-A backplane > with the MDM M7677 in the MDM slot, the KDJ11-BF M8190 in slot 1, a > MSV11-JB/JC M8637-BA/CA in slot 2, and a MLM load module M7556 in slot > 3. Not clear to me if the MLM in this case could be replaced by a > second MSV11-J. Yes. The MLM isn't really neccesary if you have one memory card in there either, if I remember right. But if you have two memory cards, you don't have any space left for the load module anyhow. > The 11/94 backplane shown in figure 1-2 in EK-PDP94-MG-001_Sep90.pdf > shows a KDJ11-E M8981 in slot 1, an APS module M7914 in slot 2, and > slot 3 empty. Does anyone know for certain that this backplane it > compatible with MSV11-J modules, and if so in which slots they would > go? It's the same backplane. I have an 11/94 box here with an 11/84 cpu and memory. Works just fine. Just wish I could land an 11/9x cpu as well. :-) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

19 years, 1 month

The Last of The Line

by bqt＠softjar.se

"Jerome H. Fine" <jhfinedp3k at compsys.to> skrev: >>Rod Smallwood wrote: >> >Now that makes a lot more sense. >> > >> >So PMI memory choice is: (2 Max) >> > >> >MSV11-JD M8637-D 1 MB ECC PDP-11/84 or PDP-11/83 >> >MSV11-JE M8637-E 2 MB ECC PDP-11/84 or PDP-11/83 >> > > Jerome Fine replies: > > I am not absolutely positive, BUT the probability is VERY > high that the above two PMI memory boards are ONLY for the > Qbus. I believe that you must use either the MSV11-JB or > the MSV11-JC within the PDP-11/84 system. Good catch! I didn't think of that one. Yes, you're right. In fact the -JD and -JE don't even claim to be PMI memory, but just plain Q-bus memory (according to the field guide). That's definitely not useful. You need the -JB or -JC. > It is probably confusing, but the CPU is the KDJ11-BF which > is used in BOTH the PDP-11/83 (which I have and the memory > used is the MSV11-JD or the MSV11-JE) and the PDP-11/84 > which you have. If you can find a KDJ11-BF along with two > MSV11-JC PMI memory boards, the cost will likely be much > less than a PDP-11/94 CPU. That is probably correct as well. The 11/9x cpu boards are scarce and expensive. The 11/8x cpu boards are more common and reasonably priced. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

19 years, 1 month

The Last of The Line

by RodSmallwood＠mail.ediconsulting.co.uk

Now that makes a lot more sense. So PMI memory choice is: (2 Max) MSV11-JD M8637-D 1 MB ECC PDP-11/84 or PDP-11/83 MSV11-JE M8637-E 2 MB ECC PDP-11/84 or PDP-11/83 The CPU choice is: Module Type Speed RAM ROM LTC SLU ------ ---- ----- --- --- --- --- M8190 KDJ11-B M8190-AD KDJ11-BA 18 M8190-AB KDJ11-BB 15 0 Y Yes 2 M8190-AC KDJ11-BD M8190-AZ KDJ11-BF 18 0 Y Yes 2 So..... 1. Plug in one or two memory cards. 2. Plug in a CPU card 3. Insert Bus Grant cards (Which end of the slot?) 4. Insert in Slot nine a M9302 UNIBUS TERMINATOR and a M9713 MIN. LOAD MODULE 5. Now we would have: Slot 1 M8190-Ax KDJ11-Bx 11/83 - 11/84 CPU Card Slot 2 M8637-X MSV11-Jx PMI Memory Slot 3 M8637-X MSV11-Jx PMI Memory Slot 4 M8191 KTJ11-B Unibus controller Slot 5 M7547 TUK50-BB Tape controller (Bus grant as well?) Slot 7 G7273 NPG and BUS Grant / Double Grant Slot 8 G7273 NPG and BUS Grant / Double Grant Slot 9 M9302 UNIBUS TERMINATOR Slot 9 M9713 MIN. LOAD MODULE 6. Connect up a terminal (I have several 420's) to the SLU connector. 7. Connect a TK50 drive (Which I have) to its controller. 8. Check for correct boot proms on the CPU card. 9. Switch on. Wait for smoke to clear. Look for output on the terminal. 10. Insert a bootable tape. (Which I don't have yet) All those in favor of this config say Aye! All those against email me quick, before I do anything dangerous!! Rod Smallwood -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Johnny Billquist Sent: 17 May 2007 10:07 To: cctalk at classiccmp.org Cc: Rod Smallwood Subject: Re: The Last of The Line "Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk> skrev: > Well I think I understand the list. > But for clarity's sake here's the problem again. > > 1. I have a number of PDP-11/94's > 2. The first three slots are Quad Qbus 3. The missing KDJ11-EB would > have been in slot one 4. Slot two has a M9714 ALT PWR FOR KDJ11-E in > it. > 5 Slot three is empty. > 6. Slot four is a Unibus slot and has a M8191 KTJ11-B Unibus > controller in it > 7 Slot five has a M7547 TUK50-BB Tape controller in it. > 8. Slot's Six,seven and eight are empty 9. Slot nine has a M9302 > (UNIBUS TERMINATOR) at one end and a M9713 (MIN. LOAD MODULE) at the > other. > > "Your mission Mr Phelps (Should you accept it) is to replace the > missing KDJ11-EB with the lowest cost plug in alternative that will run" > > The winner gets (for the cost of the shipping) a 11/94 system unit box > as described above. Sorry, but your options are very few. The first three slots of that backplane are not Q-bus, but a special adaptation of it for the PMI memory and nothing else. You cannot use Q-bus memory on it, and no other Q-bus options either (atleast according to the manuals, I haven't tried in real life. I could check out if any signals differ, if it were real important). Second, the Unibus adapter required some special signals from the CPU-board as well. Your options are basically the 11/8x and 11/9x CPU boards. No others will originate the signals for the Unibus adapter required. Memory wise only PMI memory boards will do. For an 11/94, all memory are on the CPU board, so for those, the two PMI slots should always be empty. To make the power supply happy, you normally have some bus loads on them. If you go for the 11/84 instead, you also need to find PMI memory boards. That's the CPU/memory part of your system. You then need to configure the Unibus correctly, which means you need unibus grant cards in theright place of all empty slots. You probably also want some disk controller in that system. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

19 years, 1 month

Re Last of the Line - The answer

by RodSmallwood＠mail.ediconsulting.co.uk

Thanks to Johnny Billquist our intrepid Swedish pdp-11 collector we now have an answer to the 11/94 problem. The answer is any M8190 CPU and any M8637 memory. CPU in Slot 1 Memory in Slot 2 and 3. So CPU's M8190 KDJ11-B M8190-AD KDJ11-BA M8190-AB KDJ11-BB M8190-AC KDJ11-BD M8190-AZ KDJ11 Memory MSV11-JD M8637-D 1 MB ECC PDP-11/84 or PDP-11/83 MSV11-JE M8637-E 2 MB ECC PDP-11/84 or PDP-11/83 Before I go to the dealers does anybody have any of these? Rod

19 years, 1 month

Computer stuff 1970's ish at Lucas Birmingham Gt King St ?

by RodSmallwood＠mail.ediconsulting.co.uk

Hi The Elliott core stores I worked on must have been the next generation. The electronics were in the two spaces either side of the core box. The boards were about a half to three quarters the size of those shown. The power supply was in the bottom of the cabinet and physically the same size as the store module. There was no monitor panel. The cabinet was full when there were four store modules and the psu present. I think the cabinets I knew were wider than those shown. Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Dave Caroline Sent: 19 May 2007 22:23 To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Computer stuff 1970's ish at Lucas Birmingham Gt King St ? > > http://www.patooie.com/temp/elliott_803_fixing_sm.jpg That looks fun, I wish the petrol wasnt so expensive at the moment or I'd be down there! > > ... and one of the two core cabs: > > http://www.patooie.com/temp/elliott_803_memory_cab_sm.jpg > > I believe our resident Elliott guy (and ex-Elliott engineer) said that > he used to service that very machine at Lucas which you linked to! Ah perhaps he could tell me more as all I have is that pic and some manuals 803 computer library of programmes volume 2 Programming the Elliott 402E electronic digital computer (did they have a 402E as well) TRM250 tape reader Cant remember if the manuals are from the same source (Lucas Archive when Gt King street was demolished) There were a number of early computing books that I got from there as well Dave Caroline

19 years, 1 month

ibm sys/34 (two) available in st. louis

by jwest＠classiccmp.org

Two running IBM sys/34 boxes, all peripherals, terminals, and docs included. Contact me off-list if there's interest. If no takers soon they will be scrapped. Jay West

19 years, 1 month

System/36 IPL Signon

by bear＠typewritten.org

Is there anybody on the list who knows the proper chant to appease a System/36 "IPL SIGN-ON" panel? I have zero experience with this, but I take it as a good sign that maybe security is disabled, as there's a user name field and no password field. I'm not too proud to accept a lot of handholding on this project. (@: FWIW it's a 5364 (the S/36 PC). Thanks! ok bear

19 years, 1 month

A little help w/shipping from the UK, please?

by ceby2＠csc.com

Richard, I've dealt with containerized shipping if that's a help. You can ping me off list and I can give you some pointers. But the level of effort is probably absurd for what you're attempting to achieve. Basically you just want to get quotes from ANC Express (now owned by FedEx) and ParcelPost, from the UK websites. They both do a roaring domestic surface trade, and have international shipping capabilities of course. Given the exchange rate, I hope you got a good deal, because the shipping is likely to seem expensive because we've gone from $1.70=?1 over the last two years to $2=?1. Best of luck anyway. Colin Eby ceby2 at csc.com

19 years, 1 month

A little help w/shipping from the UK, please?

by legalize＠xmission.com

I want to purchase this item from ebay 130113266639 and the seller quoted me this for shipping: "The total weight is 45kg! The cheapest freight I have found costs approx #200.00 (approx $400) with UPS. It would need to be shipped in 2 boxes. If you can find a cheaper shipping quote from London, UK, N10 3AB then you are welcome to arrange your own pickup by a delivery company from here if you win the auction." Any suggestions on a more cost effective way to ship this? I suspect the person got an air shipping quote and not something slower but less expensive. Any suggestions (URLs would be ideal) for better alternatives appreciated! -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 1 month

Friden Flexowriter

by aek＠bitsavers.org

> Wish me luck with this potential white elephant. If you decide not to restore it, CHM would be interested.

19 years, 1 month

A little help w/shipping from the UK, please?

by gtoal＠gtoal.com

Try an actual shipping company, the kind that load big wooden pallettes onto ships. I used one when I emigrated to the US 12 years ago and was surprised how reasonable it was, and I had *many* times more than just 45Kg... Only drawback, you often have to pick up from their docks yourself or you'll be charged a disproportionate delivery fee for the last 10 miles, with the driver expecting a serious tip for carrying the goods in. G

19 years, 1 month

OT? Freecycling Compaq Proliant 6500 - Milton Keynes, UK.

by classiccmp.org＠stellar.eclipse.co.uk

Not sure whether a 10-year-old quad Xeon is OT here or not - it's very late by the standards of many machines here, but I found it to have some "interestingness" value. Anyway this machine died on me recently and I don't have the heart to figure out what's wrong with it & get it going again. I offer it here first in case anyone local could use it (or the spares it constitutes), otherwise it'll go on the local freecycle. Stroller.

19 years, 1 month

The Last of The Line

by bqt＠softjar.se

Pete Turnbull <pete at dunnington.plus.com> skrev: > On 17/05/2007 21:51, Johnny Billquist wrote: >> > "Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk> skrev: > >>> >> Module Type Speed RAM ROM LTC SLU >>> >> ------ ---- ----- --- --- --- --- >>> >> M8190 KDJ11-B >>> >> M8190-AD KDJ11-BA 18 >>> >> M8190-AB KDJ11-BB 15 0 Y Yes >>> >> 2 >>> >> M8190-AC KDJ11-BD >>> >> M8190-AZ KDJ11-BF 18 0 Y Yes >>> >> 2 >> > >> > You need to check out if all of these really works in an 11/84. I don't >> > think they all do. Some had hardware bugs that meant they only work in >> > the 11/83 configuration. > > Are you sure about that? Early ones had hardware bugs that prevent them > working with an FPJ11 but I never heard of one not working in an 11/84. > In fact the buggy ones were often found in 11/84s. On the other hand > there are some PMI memories that only work in one machine flavour, but > the opposite way round to what you wrote: the MSV11-JB and -JC only work > in 11/84s; their ASICs aren't compatible with QBus systems. Not entirely sure. I got that from the field guide. If you look at the M8190 there, you'll see that the KDJ11-B is only used in the 11/84 (unibus only). The KDJ11-BA, -BB and -BD is marked as Q-bus only, and only 11/83. The KDJ11-BF is the final version, and is marked as working in both 11/83 and 11/84 (both Q-bus and Unibus). Of course there are other problems as well, such as the FPJ-11 socket on some versions, as well as speed. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

19 years, 1 month

The Last of The Line

by bqt＠softjar.se

joe lang <jclang at notms.net> skrev: > PMI memory goes in slots 1 and 2, CPU goes in 3 No. That's when you are on a q-bus. This is a Unibus box. Then the CPU goes into slot 1 and the memory cards goes into slots 2 and 3. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

19 years, 1 month

AT & T UNIX pc's

by chrism3667＠yahoo.com

I have a 7300. I've come to learn a bit about the 3B1, which could be considered the same thing (?). I have a load of disks and docs for the 7300?. Unfortunately they were all stored improperly and are worthless. Being I already have the media (and can prove it) I'd like to have working images of these disks. Anyone have a clue? My hard drive does work, but is a bit flakey maybe :( The thing is a pitn to open up :{ I'd be very interested to hear from humans who are knowledgeable of these units, and more so by those who are currently playing with them. ____________________________________________________________________________________Luggage? GPS? Comic books? Check out fitting gifts for grads at Yahoo! Search http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=bz

19 years, 1 month

The Last of The Line

by RodSmallwood＠mail.ediconsulting.co.uk

>The 11/94 backplane shown in figure 1-2 in EK-PDP94-MG-001_Sep90.pdf shows a KDJ11-E M8981 in slot 1, an APS module M7914 >in slot 2, and slot 3 empty. Does anyone know for certain that this backplane it compatible with MSV11-J modules, and if >so in which slots they would go? We seem to have come down to one fudamental question. That is to say whats the differnce between the backplane in an 11/84 and that in an 11/94? I can confirm the actual systems were as stated above ie KDJ11-E M8981 in slot 1 APS module M7914 in slot 2 Nothing in slot 3 So how can we tell if the first three slots in each type are compatible? Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Glen Slick Sent: 18 May 2007 20:43 To: General Discussion: On-Topic Posts Only Subject: Re: The Last of The Line On 5/17/07, Rod Smallwood <RodSmallwood at mail.ediconsulting.co.uk> wrote: > OK we have a change > > >PMI memory goes in slots 1 and 2, CPU goes in 3 joe lang > > Rod > >From my understanding of this after looking at various manuals this is true for an 11/73 or 11/83 with an H9872 backplane in a BA23 box, but not for an 11/84. Figure 8-6 in EK-PDP94-MG-001_Sep90.pdf shows a PDP-11/84-A backplane with the MDM M7677 in the MDM slot, the KDJ11-BF M8190 in slot 1, a MSV11-JB/JC M8637-BA/CA in slot 2, and a MLM load module M7556 in slot 3. Not clear to me if the MLM in this case could be replaced by a second MSV11-J. The 11/94 backplane shown in figure 1-2 in EK-PDP94-MG-001_Sep90.pdf shows a KDJ11-E M8981 in slot 1, an APS module M7914 in slot 2, and slot 3 empty. Does anyone know for certain that this backplane it compatible with MSV11-J modules, and if so in which slots they would go?

19 years, 1 month

govliq: 8 ADM-5 terminals (San Antonio, TX)

by legalize＠xmission.com

<http://cgi.govliquidation.com/auction/view?id=1229675&convertTo=USD> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 1 month

govliq: 130 reels of 9-track tape (Norfolk, VA)

by legalize＠xmission.com

<http://cgi.govliquidation.com/auction/view?id=1229530&convertTo=USD> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 1 month

freaky IBM terminal (eBay)

by chrism3667＠yahoo.com

http://cgi.ebay.com/IBM-5251-12-VINTAGE-IBM-TERMINAL-DISPLAY_W0QQitemZ14011… ____________________________________________________________________________________ Need Mail bonding? Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users. http://answers.yahoo.com/dir/?link=list&sid=396546091

19 years, 1 month

Hitachi 6809 Peach (Down Unda)

by chrism3667＠yahoo.com

http://cgi.ebay.com/HITACHI-PEACH-MB-6890-K-RARE-VINTAGE-COMPUTER-SYSTEM_W0… and so CoCo fans, you have a rival... ____________________________________________________________________________________Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online. http://smallbusiness.yahoo.com/webhosting

19 years, 1 month

interested in trading an IBM System 23/Datamaster for...

by chrism3667＠yahoo.com

...you tell me. It's not in the greatest cosmetic condition, but it worked (the last time I checked). It's very heavy. Shipping would be catastrophic... ____________________________________________________________________________________ Be a PS3 game guru. Get your game face on with the latest PS3 news and previews at Yahoo! Games. http://videogames.yahoo.com/platform?platform=120121

19 years, 1 month

The Last of The Line

by RodSmallwood＠mail.ediconsulting.co.uk

OK we have a change >PMI memory goes in slots 1 and 2, CPU goes in 3 >joe lang Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of joe lang Sent: 17 May 2007 21:35 To: On-Topic Posts Only Subject: Re: The Last of The Line Rod Smallwood wrote: >Now that makes a lot more sense. > >So PMI memory choice is: (2 Max) > >MSV11-JD M8637-D 1 MB ECC PDP-11/84 or PDP-11/83 >MSV11-JE M8637-E 2 MB ECC PDP-11/84 or PDP-11/83 > > >The CPU choice is: > >Module Type Speed RAM ROM LTC SLU >------ ---- ----- --- --- --- --- >M8190 KDJ11-B >M8190-AD KDJ11-BA 18 >M8190-AB KDJ11-BB 15 0 Y Yes >2 >M8190-AC KDJ11-BD >M8190-AZ KDJ11-BF 18 0 Y Yes >2 > >So..... > >1. Plug in one or two memory cards. > >2. Plug in a CPU card > >3. Insert Bus Grant cards (Which end of the slot?) > >4. Insert in Slot nine a M9302 UNIBUS TERMINATOR and a M9713 MIN. LOAD >MODULE > >5. Now we would have: > > Slot 1 M8190-Ax KDJ11-Bx 11/83 - 11/84 CPU Card > Slot 2 M8637-X MSV11-Jx PMI Memory > Slot 3 M8637-X MSV11-Jx PMI Memory > Slot 4 M8191 KTJ11-B Unibus controller > Slot 5 M7547 TUK50-BB Tape controller (Bus grant as >well?) > Slot 7 G7273 NPG and BUS Grant >/ Double Grant > Slot 8 G7273 NPG and BUS Grant >/ Double Grant > Slot 9 M9302 UNIBUS TERMINATOR > Slot 9 M9713 MIN. LOAD MODULE > > >6. Connect up a terminal (I have several 420's) to the SLU connector. > >7. Connect a TK50 drive (Which I have) to its controller. > >8. Check for correct boot proms on the CPU card. > >9. Switch on. Wait for smoke to clear. Look for output on the terminal. > >10. Insert a bootable tape. (Which I don't have yet) > > >All those in favor of this config say Aye! >All those against email me quick, before I do anything dangerous!! > >Rod Smallwood > > > > > >-----Original Message----- >From: cctech-bounces at classiccmp.org >[mailto:cctech-bounces at classiccmp.org] On Behalf Of Johnny Billquist >Sent: 17 May 2007 10:07 >To: cctalk at classiccmp.org >Cc: Rod Smallwood >Subject: Re: The Last of The Line > >"Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk> skrev: > > > >>Well I think I understand the list. >>But for clarity's sake here's the problem again. >> >>1. I have a number of PDP-11/94's >>2. The first three slots are Quad Qbus 3. The missing KDJ11-EB would >>have been in slot one 4. Slot two has a M9714 ALT PWR FOR KDJ11-E in >>it. >>5 Slot three is empty. >>6. Slot four is a Unibus slot and has a M8191 KTJ11-B Unibus >>controller in it >>7 Slot five has a M7547 TUK50-BB Tape controller in it. >>8. Slot's Six,seven and eight are empty 9. Slot nine has a M9302 >>(UNIBUS TERMINATOR) at one end and a M9713 (MIN. LOAD MODULE) at the >>other. >> >>"Your mission Mr Phelps (Should you accept it) is to replace the >>missing KDJ11-EB with the lowest cost plug in alternative that will >> >> >run" > > >>The winner gets (for the cost of the shipping) a 11/94 system unit box >> >> > > > >>as described above. >> >> > >Sorry, but your options are very few. > >The first three slots of that backplane are not Q-bus, but a special >adaptation of it for the PMI memory and nothing else. You cannot use >Q-bus memory on it, and no other Q-bus options either (atleast >according to the manuals, I haven't tried in real life. I could check >out if any signals differ, if it were real important). > >Second, the Unibus adapter required some special signals from the >CPU-board as well. > >Your options are basically the 11/8x and 11/9x CPU boards. No others >will originate the signals for the Unibus adapter required. Memory wise >only PMI memory boards will do. > >For an 11/94, all memory are on the CPU board, so for those, the two >PMI slots should always be empty. >To make the power supply happy, you normally have some bus loads on >them. > >If you go for the 11/84 instead, you also need to find PMI memory >boards. > >That's the CPU/memory part of your system. You then need to configure >the Unibus correctly, which means you need unibus grant cards in >theright place of all empty slots. You probably also want some disk >controller in that system. > > Johnny > > > PMI memory goes in slots 1 and 2, CPU goes in 3 joe lang

19 years, 1 month

AT & T UNIX pc's

by blstuart＠bellsouth.net

> I have a 7300. I've come to learn a bit about the 3B1, > which could be considered the same thing (?). Pretty much. Architecturally, they're the same. The usual distinction is the 3b1 has a "hump" to accomodate a physically larger disk drive. There has been a suggestion, though debated, that the 3b1 also has a beefier PS. > I have a load of disks and docs for the 7300?. > Unfortunately they were all stored improperly and are > worthless. Being I already have the media (and can > prove it) I'd like to have working images of these > disks. Anyone have a clue? That's a good question. Because they contained UNIX SYS V R2, most everyone was pretty careful about throwing around copies. So I don't know of any online images of them. Your best bet might be to find someone who has a set they'll send you, or perhaps a set they've backed up. In general, the first place to look is Peter da Silva's page: http://unixpc/taronga.com > My hard drive does work, but is a bit flakey maybe :( There's a classic issue of corrosion on the PS connector. That might be part of your problem. > The thing is a pitn to open up :{ It gets easier with practice. > I'd be very interested to hear from humans who are > knowledgeable of these units, and more so by those who > are currently playing with them. I used to do quite a lot with them, but haven't fired one up in probably 5 years. I used to maintain the archive that Peter maintains now. BLS

19 years, 1 month

Offtopic-ish: Classiccmpers in Yorkshire?

by gpearce＠curiousgroup.com

Hi folks, I'm going down to the Citro?n Car Club rally in Wetherby this weekend. I wondered if any classiccmpers fancied meeting up at some point. ISTR there's a few in that part of the world... Gordon

19 years, 1 month

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test-drb