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

WTD: Sun Voyager bag, BeBox front plastics + IO Card

by ethan＠757.org

Just two random pieces that I've been after for my collection: #1. Sun Voyager tote bag. The bag the computer goes into. #2. BeBox front plastic part, and the IO board for a BeBox. Have a dual 66Mhz that is case, PSU and mobo only. Would like to complete it. Thanks. -- Ethan O'Toole

9 years, 9 months

1
0
0 0

Seeking docs and schematic for Novation CAT modem

by COURYHOUSE＠aol.com

Joe - is that the direct connect one of the acoustic coupler? I any event SMECC would love a copy to for our files at the museum here. A side issue there was a Novation coupler - modem... a white one that the phone would sit on. with coupler cups to the side. Does anyone have any photos, advertising, etc etc... on this ? Thanks Ed # _www.smecc.org_ (http://www.smecc.org) In a message dated 9/13/2016 3:32:00 P.M. US Mountain Standard Time, fast79ta at yahoo.com writes: On 9/13/2016 1:58 PM, Ethan Dicks wrote: > Hi, All, > > Good seeing many of you at VCF-midwest. One of my scores was an > Atari-badged Novation CAT modem. Digging around for any docs, what > I'm mostly finding is lots of info about Novations Apple II products, > and scant mention with thumbnail pictures of the original CAT acoustic > coupler, that and dozens of sites copying the Wikipedia article. > > Anyone have any CAT info? I can reverse-engineer the schematic, but > if that's already been done, no reason for me to redocument the wheel. > I know it wants a 20VAC 400mA PSU, but I want to check how strict that > is (i.e., 18VAC @ 500mA or 24 VAC @ 350 mA, for example, which may be > easier to find than an unregulated 20VAC PSU). > > I would love to play with a CBM 8010 (since I have so many PETs) but I > do happen to have a couple of IEEE-488 to RS-232 devices, which will > work fine with this Atari 830/Novation CAT. > > -ethan I have the manual for a 103/212 smart cat modem. PN 490418-1/490521-1. Circa 1982 Is that what you need? Cheers, Joe

9 years, 9 months

1
0
0 0

HP 7970B/E Tape Unit manual available

by COURYHOUSE＠aol.com

Al - I have had them with 7 and with 9 but never lucky enough to get the dual headed one... yea... well worth putting online. do you have a link to any sales info on this? I used to hear of these but never laid eyes on one. Ed# In a message dated 9/22/2016 10:32:09 A.M. US Mountain Standard Time, aek at bitsavers.org writes: I'm trying to decide if I want to attempt getting my 7970 with a dual 7/9 track head running this year.

9 years, 9 months

2
1
0 0

Short test programs for pdp 11/34

by lyokoboy0＠gmail.com

Hello, made some progress with the pdp 11/34 I picked up a while back. Managed to repair the faulty power supply. I am in the process of trying to get a minimal configuration of the machine up and running. I am looking for a short program to key in to try and test the functionality of the cpu. Is there anywhere aside from the DEC manuals I could go to get a quick idea of how to operate the front panel? The manual is very in depth, however i am looking for sort of a quick start guide to get started pretty quickly. Any site with info on how to operate the front panel or some quick short programs i can key in would be of interest. I almost have the whole machine put back together on my desk, if all goes well and it runs as expected, i want to post back with some nice orderly pictures of it in the rack next to all the drives and the tape Drive. Progress overall with the whole machine has been slow going, the machine came with a heap of rsx 11 disk packs and tapes, however I am not to the point where i can use them just yet. Ive been kinda itching to see whats on those tapes, hopefully soon. --Devin

9 years, 9 months

3
3
0 0

Decoding kryoflux stream for HP9895A

by denise.devries＠flinders.edu.au

Based on the decoding suggested by Christian, I am plodding on but no success so far. I am not 100% sure that this is M2FM. >I'd still like to get a 9885/9895/7902 M2FM flux-transition disk >image, if anyone has one handy that they'd be willing to share. I will send the image stream to Eric Denise ________________________________ Dr Denise de Vries BCompInfSc, BSc(Hons), PhD, MACS Lecturer Computer Archaeology Laboratory School of Computer Science, Engineering and Mathematics Tonsley Building 1 Flinders University South Road Tonsley 5042 GPO Box 2100 Adelaide SA 5001 Ph: +61 8 8201 3639 | Fax: +61 8 8201 3602 Room T1 3.24 - Tonsley 1 Building www.flinders.edu.au/people/denise.devries CRICOS Provider Number: 00114A This email and any attachments may be confidential. If you are not the intended recipient, please inform the sender by reply email and delete all copies of this message.

9 years, 9 months

1
0
0 0

StorageTek 2920 9-track manual or instructions wanted

by axelsson＠acc.umu.se

Hi all, I have a Norsk Data ND110324 9-track drive which is a rebranded StorageTek 2920 with SCSI interface. So far I have only found a single manual for it, a quick guide card of 10 pages. Is there a manual out there which describes the unit a bit more in depth, like setting the SCSI address, diagnostic program codes, service, technical specifications and so on. So far I have got it to load a tape automatically and detect the recording density. Next step is to get it to talk to a linux-computer for imaging some old tapes. Thanks in advance, G?ran

9 years, 9 months

6
11
0 0

Tektronix 4051 repair.

by mattislind＠gmail.com

I took a look at the Tektronix 4051 that we got a few years back. After checking the PSU I turned it on and it seemed to start up fine. The machine responded well to the keypresses but it was hardly readable on the screen. Anyone that can give advice on what is wrong and how to deal with it. The text on the screen is very faint and many characters are scrambled as if the beam was moving when the points where plotted. When typing there is a flash of the beam which is then stored as the scrambled text. http://i.imgur.com/iQhQW67.jpg It probably reads "SYNTAX ERROR" something on the screen. My experience with DVST device is minimal. I used an old Philips storage oscilloscope many years ago but I don't remember the screen to be this dull. It seems like the storage system is not at full output. Unfortunately I am not getting a good understanding on how the DVST system works from reading the service manual. What is the purpose of the timers for cursor and character intensity? I am about to check all the voltages related to the display mentioned in the calibration section of the manual, but just in case someone directly recognize what kind of problem there is I would be much interested. /Mattis

9 years, 9 months

6
11
0 0

Short test programs for pdp 11/34

by jnc＠mercury.lcs.mit.edu

> From: Devin Davison > I am looking for a short program to key in to try and test the > functionality of the cpu. "BRANCH ." is always a good one - 0777. If that runs, much of the CPU is functional, and any errors found from there should be pretty easy to track down. > Is there anywhere aside from the DEC manuals I could go to get a quick > idea of how to operate the front panel? The manual is very in depth, > however i am looking for sort of a quick start guide to get started > pretty quickly. I'm assuming you have the 'Programmer's Front Console', the one with the 0-7 number keys, etc? If you have the simple one, instead, that uses a program in ROM to drive the console serial line, and most of the CPU has to be running to use that. The Programmer's Console is pretty simple. Key in the address, hit "LAD" (Load Address), and then you can read ("EXAM"), store ("DEP" - after entering the number you want deposit), or start the CPU running at that address (hold down "CNRTL" and "START"). Hitting "EXAM" multiple times examines successive locations - "DIS AD" will show you how far it has gotten. If the CPU is running ("RUN" light is on), pressing down "CNRTL" and "HLT/SS" will halt it. Load, deposit, etc don't work unless the CPU is halted. Noel

9 years, 9 months

1
0
0 0

Signetics PLS173 PLA fuse numbering?

by glen.slick＠gmail.com

A Signetics PLS173 PLA has a total of 2178 programmable fuses: (32 AND gates for logic terms plus 10 AND gates for control terms) times (24 true/complement inputs plus 20 true/complement inputs/outputs) = 1848 fuses (10 OR gates) times (32 AND gates logic term outputs) = 320 fuses 10 fuses for true/complement output selection For reference see the PLS173 FPLA Logic Diagram on page 5-70 (page 242 of the PDF) of the Signetics PLD Data Manual 1987 http://www.bitsavers.org/_dataBooks/1987_Signetics_pldData.pdf The question is for anyone here that knows: How are these fuses in the FPLA Logic Diagram numbered as they would be in a JEDEC fuse map file used to program a device, or when read back from a device? I can't find that information anywhere. If I read a PLS173 device into a JEDEC fuse map it should be trivial to generate the logic equations by hand if the fuse numbering is known, which is what I want to do.

9 years, 9 months

3
3
0 0

Free manuals...

by lbickley＠bickleywest.com

I'm cleaning out my library of manuals and books I no longer need and before I recycle these particular IBM manuals, I thought someone on cctalk might find them useful. They are free for the shipping and packaging cost - local pickup gets priority ;) 1) "RS/6000 Diagnostic Information for Multiple Bus Systems" (Version 5.100) 2) "RS/6000 Adapters, Devices and Cable Information for Multiple Bus Systems" 3) Large 8.5" X 11" "Systems Network Architecture, Reference Summary" (Updated to 2/4/86). Includes "IBM Synchronous Data Link Control General Information" manual. 4) 8.5" X 11: "Systems Network Architecture, Transaction Programmer's Reference Manual for LU Type 6.2" Cheers, Lyle -- 73 AF6WS Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

9 years, 9 months

3
3
0 0

Michael Holley

by david＠thecoolbears.org

I'm not sure that I'm comfortable asking this, but here goes.... I ran into the famous Michael Holley (www.swtpc.com) at VCF West and had a pleasant conversation. I've emailed him several times at the address on his web page, but haven't had a reply. I'm wondering if he ever hangs out on cctech and if not, if there is someone that knows of a different email and could let him know that I would like to chat with him.

9 years, 9 months

1
0
0 0

Looking for a MXV11 board (QBus)

by azd30＠telus.net

Hi, As per the subject, I'm wondering if anyone has a spare MXV11 that they would be willing to part with. It's going in 2x4 (H9281) enclosure, where I'm currently losing two slots to a mem card and a DLV11-J. I would prefer the -BF version, so I can run either my 11/23 or the 11/73 processor card in there, but the -A version will do in a pinch. Boot ROM's would also be nice, but not a hard requirement... Please let me know off-list. I am in the Pacific Northwest if that makes a difference to anyone... cheers -- alex

9 years, 9 months

1
0
0 0

ISO: VAXBI hardware

by derschjo＠gmail.com

Hi all -- I have a VAX 8250 I'm bringing up and I'd like to track down an Ethernet adapter, this would be the T1034 (DEBNT). There are a few on eBay, but none include the cabling and bulkhead, which would be nice to have. I'm also looking for a T1010 (BI to Unibus adapter), as the one in my system is shot (and given the lack of documentation, I doubt I'm going to be able to fix it). Also -- any suggestions for mass storage? I have a KDB50 (T1002, T1003 set), but SDI drives are getting harder to find. I assume VAXBI SCSI adapters are even more scarce than their Unibus counterparts.... Thanks as always, Josh

9 years, 9 months

3
3
0 0

DEC 3000 Model 400 Alpha Workstation

by rlloken＠telus.net

Gentlemen, I was rooting through the morgue this morning looking for a cable to revive my AlphaServer 4100 when I stumbled over my long moribund DEC 3000. This machine was retired because some of the memory failed and, although it is too large and heavy to ship, there are a lot of parts and accessories that may be of use including the strange little cable that had a connector block for the mouse and keyboard and an adaptor that I obtained from DEC which allows you to use a VGA monitor instead of the original Trinitron with its array of BNC cables. I also have an array of documentation and (good grief!) the original mouse. Anybody want any DEC 3000 parts? Or a couple of ES45 CPU cards? I have two those also. -- Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those Athabasca University : tuques we wear, our Athabasca, Alberta Canada : heads are naked!" ** rlloken at telus.net ** : - Arthur Black

9 years, 9 months

1
0
0 0

Third release of the HP 3000 Series III simulator

by jdbryan＠acm.org

The third release of the HP 3000 Series III simulator is now available from the Computer History Simulation Project (SIMH) site: https://github.com/simh/simh This release adds the cold dump facility. Entering the DUMP command simulates pressing the ENABLE and DUMP front panel buttons. The contents of main memory are written to an attached magnetic tape in a format suitable for analyzing with the DPAN4 program provided with MPE. The new SET CPU DUMPDEV and SET CPU DUMPCTL options specify the default device number and control byte for the dump. Also, the user may simulate a system power loss with the POWER FAIL command and resume powered operation with the POWER RESTORE command. The SET CPU ARS/NOARS command determines whether or not MPE automatically restarts when power is restored. The full set of new features is listed in the release notes that accompany the simulator source files. In addition, an updated HP 3000 Simulator User's Guide that covers the new commands is provided in Microsoft Word format with the source download and also as a PDF file at: http://alum.mit.edu/www/jdbryan/hp3000_doc.pdf The preconfigured MPE-V/R disc image available from Bitsavers: http://www.bitsavers.org/bits/HP/HP_3000/ ...was not changed for this release. -- Dave

9 years, 9 months

1
0
0 0

Hazeltine Esprit III manual

by aek＠bitsavers.org

Just noticed this. Did anyone on the list buy it? http://www.ebay.com/itm/221674855740

9 years, 9 months

1
0
0 0

DEC F-11 (Fonz) processor ceramic chip carriers (PDP-11) on eBay

by scott.l.baker＠gmail.com

http://www.ebay.com/itm/191974796676?ssPageName=STRK:MESELX:IT&_trksid=p398…

9 years, 9 months

4
3
0 0

Need help: DSD-440 with unresponsive formatter/control board

by jrw＠lolqb.us

So the DSD-440 I got at VCF is completely unresponsive. All of the LEDs are on and never go out, which is bizarre - they are supposed to go out in 1/10 of a second after power on. I tried disconnecting everything but power to the card, and it still lights all LEDs. No jumpers that I could find are in the wrong spot, but many are seemingly undocumented ( I looked in both the 1981 user manual and 1984 service manual on Bitsavers). The drive just spins and does nothing else. Altering the switches on the control board do nothing to change the state of the LEDs. I measured voltages at the power supply, and they seem to be within spec according to the manual. Are there any other things I can try before I start digging into things on a component level?

9 years, 9 months

2
5
0 0

Value of 7-track TU10

by michael.99.thompson＠gmail.com

> From: jnc at mercury.lcs.mit.edu > Subject: Value of 7-track TU10 > > So what do people think the (monetary) value of a 7-track TU10 master drive > is? I have no idea what these older vacuum-column drives are worth - don't > recall ever seeing on for sale. This one is in good condition, and has all its > Flip Chips. The 7-track is a plus in some ways (rarer), and negative in > others (can't read old 9-track tapes, which are probably more common than > 7-track). > > Noel Noel, The TU10 would be a great addition to the PDP-9 at the RICM. The RICM is a 501(c)(3) entity so you get a tax deduction for a donation.

9 years, 9 months

1
0
0 0

VCFMW 11

by jwest＠classiccmp.org

I just wanted to say a huge thanks to Jason and crew for putting on an incredible event last weekend. Last year was fantastic, and this year the bar was raised again in every area. To my eye, attendance was up this year yet again. There was plenty of rich toasty mini goodness, including a Prime 5300 and a Vax 6000 - and a bevy of pdp8 and pdp11 displays. The touch screen 11/70? Front panel connected to emulation was awesome! Someone was displaying some of Rod's front panels. incredible work Rod! The auction had far more goodies this year, including plenty of "big iron" that I'm sure is getting new blood into the hobby. The speakers also took things up a notch, I can't wait to see the roster for next year. I was pretty focused on Dennis's Prime the whole show, so I didn't get to really go around to every exhibit. I'm sure I missed some quality displays. I saw new people actively getting into the hobby, and I noticed quite a few listmembers and irc #classiccmp peeps that had never been to vcfmw before showed up this year. The larger space (and other amenities) over the previous venue were fully used. We may need even more space next year. It was an incredible show, of course I will be there next year, and hats off to Jason for all the hard work he put in to making it a success. Best, J

9 years, 9 months

3
2
0 0

Value of 7-track TU10

by jnc＠mercury.lcs.mit.edu

> From: Paul Anderson > A 9 can be converted to a 7 with a head change and I thing a board > change or removal. Yeah, the M768 module contains configurable diode arrays to control certain operational delays, which are different between the two - one can either change out the M768, or modify the existing one by adding/removing jumpers. > I recall having a TU10 7 track here somewhere. If it turns up, maybe someone with a 9-track drive could convert it to 7-track. Noel

9 years, 9 months

1
0
0 0

Value of 7-track TU10

by jnc＠mercury.lcs.mit.edu

> From: William Degnan > I found the doc somewhere months ago sorry I can't remember where. I > will upload to my site if I get a free moment and it's still on my > computer. Thanks; that would be great. I already did find online the TU10 Maintenance Manual (EK-TU10-MM-007), the TU10M Master System Manual (DEC-00-TU10M-D), and the TU10 Engineering Drawings, so we're pretty well set for these drives, but it would be good to have DEC-00-TU10S-DC too. > $2000 if clean. Wow. I saw a pair of H960's, a pair of CDC 92185 tape drives, 3 Fuji MiniEagles and an 11/23 go for $1.5K on eBait recently: http://www.ebay.com/itm/161928600660 Now, those are streaming drives, not vacuum column, but still - why is the TU10 worth so much more? > Master unit double that price. I find this even harder to understand. The only difference between the two is that the Master has 7 dual Flip Chips (M640, M891, M7673, M7672, M892, M895, M7671) and 3 single Flip Chips (M100, M896, M958) that the Slave doesn't have. (The backplane is, as far as I can tell, wired for both - the wire list given in the prints is for the master, and I don't see a second Slave-only wire-list. Yes, perhaps some early Slave drives had a Slave-only backplane, but that's just a guess. If someone who has a Slave drive can check their backplane to see if slots 6-15 are wired, that would be very useful to know.) Yes, the full set of 10 Flips Chips would be hard to find, but I have a hard time seeing them being worth $200 each... Noel

9 years, 9 months

2
1
0 0

Value of 7-track TU10

by jnc＠mercury.lcs.mit.edu

So what do people think the (monetary) value of a 7-track TU10 master drive is? I have no idea what these older vacuum-column drives are worth - don't recall ever seeing on for sale. This one is in good condition, and has all its Flip Chips. The 7-track is a plus in some ways (rarer), and negative in others (can't read old 9-track tapes, which are probably more common than 7-track). Noel

9 years, 9 months

6
6
0 0

Reminder: VCF Berlin, 1–3 October 2016

by stueberahoo＠yahoo.de

Hi list, VCF Berlin[0] is coming soon! We'll have a day open only for participants and other collectors on Saturday, 1st of October. On Sunday, 2nd and Monday, 3rd of October we'll be open to the general public (3rd of October is a holiday in Germany). Entry is free on all days. Apart from exhibitions there will be lectures, soldering workshops, a chiptune party and many other things. Come and visit us! Sorry this reminder is so late, I was hoping for the English version of the website to get updated, which hasn't happened yet. Please refer to a translation[1] of the German version for more information instead. Although all but one talk will be given in German, most of the exhibitors can speak English, so VCFB is worth a visit even if you don't speak any German. In case you need somewhere to stay, we can probably find a place for you. Hope to see you at VCFB! Best, Anke [0] http://vcfb.de/2016/index.html.en [1] https://translate.google.com/translate?sl=de&tl=en&hl=en&ie=UTF-8&u= http://vcfb.de/2016/index.html

9 years, 9 months

1
0
0 0

Value of 7-track TU10

by jnc＠mercury.lcs.mit.edu

> From: Doug Ingraham > Put it up on EBAY with an unrealistic reserve ... What controller do > you have for it? None. I don't own either the drive, or a controller for it. Noel

9 years, 9 months

2
1
0 0

Value of 7-track TU10

by jnc＠mercury.lcs.mit.edu

> From: William Degnan >> a 7-track TU10 master > What is the model number of the TU10? The serial number plate just says "TU10"; and it's not in its original DEC rack, so any label/plate there is no longer available. But the front door says "TU10 7 CHANNEL", and the head shows 7 tracks (since someone might have changed the head, and not been able to replace the door). > The presence of the TU10M label along with a separate TU10 label plate > means the tape has the the master transport unit installed. I prefer to actually check the Flip Chips, since one ought to do that anyway to make sure they are all there (hence my previous description of it as a "TU10 master drive ... [which] has all its Flip Chips"). (There's a list here: http://gunkies.org/wiki/TU10 including locations, if anyone ever needs it.) > Hopefully this will compare with the unit you're interested in and > assist with your assessment. I am perfectly capable of assessing the technical situation from the technical documentation (which is available), and have already done so. What I really need is some idea of its value (I haven't a clue). I am aware that its exact configuration and condition will affect the value, but I thought "a 7-track TU10 master drive .. in good condition, [with] all its Flip Chips" would be enough to get to the ball-park. > See DEC-00-TU10S-DC I had previously looked online for that, but was unable to find a copy. Can you point me at one? Thanks. > more diffs 7 vs, 9 track AFAICT, the only significant difference is the head; the Flip Chip suite is the same for both, since the per-channel boards are all 9-track, and simply leave the last two bits disconnected when used with a 7-track head (see e.g. drawing # TU10-0-09, note "9 Track Only"). Of course, the drive has to be able to say (to the controller) whether it's a 7-track or 9-track. Drawing # TU10-0-07 shows (center) an incoming signal on pin AJ1 of the M514 board (slot 21) called "7 CH", that signal is intended to ground the input, so there's a jumper to ground on the backplane to indicate 7/9 (A21C2, per the MM, Appendix A.5). Noel

9 years, 9 months

1
0
0 0

Value of 7-track TU10

by jnc＠mercury.lcs.mit.edu

> From: William Degnan >> the (monetary) value of a 7-track TU10 master drive ^^^^^^ > Is there a thread with more details? No. > I assume this is a master drive See above. > the cards installed indicate whether it came from a pdp 8/9/10/11. AFAIK, all PDP-10 TU10's are Slaves. TU10's used on an -11 need a Master and Slaves, I don't know if the ones for an -8 are the same. The TU10 prints don't seem to indicate that there is more than one type of Slaveax, and similarly for the Masters - there is just the one type of each. This one is from an -11, though. > How is the power supply? No idea. And no idea about the condition of the motors, compressor, etc, etc, etc. Like I said, this one "is in good condition", from a purely external inspection. Noel

9 years, 9 months

1
0
0 0

Linux at 25

by c.murray.mccullough＠gmail.com

Linux at 25 - created 25 years ago. Has it changed computing or is it 'better' than WIN or MacOS? Not really part of classic computing world but nonetheless it can be used today in emulators. ( I use it for ADAM emulating. ) Happy computing! Murray :)

9 years, 9 months

13
17
0 0

pictures of IBM 6110344 and 6110345

by sales＠elecplus.com

I am getting 3 of these ready for sale, and all but 1 of the online pics I see of the boards do NOT have a PA3 or a NumLock key. Does anyone here have a good high res pic of these 2 complete keyboards, so that I can know what is supposed to be on there? Many thanks! Cindy Croxton

9 years, 9 months

2
2
0 0

G4 cube (was Re: 68K Macs with MacOS 7.5 still in production use...)

by rlloken＠telus.net

On Mon, 12 Sep 2016, Al Kossow wrote: > Put it this way. The product manager for the cube was the first person > I know of who had one as a kleenex dispenser. It was a failed industrial > design experiment that never should have shipped and even he felt that > way. And now they have the mac pro which looks like a very elegant $3,000.00 can of tomato juice. Not much changes. Meanwhile, I am on my second mac Mini (third if you count my wife's) because i really like the mac mini so I probably would have bought the cube if I had been in the market for a mac at that time. -- Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those Athabasca University : tuques we wear, our Athabasca, Alberta Canada : heads are naked!" ** rlloken at telus.net ** : - Arthur Black

9 years, 9 months

27
77
0 0

PDP-8 core memory problems.

by anders＠abc80.net

> So what are the other options? > * Trying to repair the unit. Every plane is soldered together with the ones > nearby to convey the X/Y signals. This can probably be undone with a > patience and soldering braid. But what are the chance that the X/Y wires > gets lose then? Are those soldered or welded into place? > > Then it would be quite tricky to just identify where it is actually broken. > Any ideas for how to do this? A microscope of course. Any other ideas? > Applying an electrical field between the wire and something else and try to > detect it? A stereoscopic microscope and a lot of patience is a good staring point. > Repair. If the wire is broken in the mat it is probably not to difficult to > pull out the broken parts. But then the new wire has to be spliced in. What > is t he best technique to do that? > How to push in the new wire in the matrix? I now that Anders was able to do > this with a broken X-wire in a PDP-8/L stack. I used a pair of tweezers to push the new thread in, one core at a time. You should try to change as small part as possible. I just changed the thread thru the first 64 cores, then I joined the two threads together in the middle of the core plan. I then used nail polish as an isolatur. I didn't thought I had something to lose to try to repair the existing core stack. Without it the computer is really not working at all. I'll think you should try to repair it. Start to bring out the core stack and then turn it around for a while until you are brave enough. I found some pictures on stacks to the 8/L in pieces before I started on the internet, that helped me to understand what I had to master. /Anders

9 years, 9 months

3
2
0 0

DEC 871 / 874 power controller engineering drawings?

by mattislind＠gmail.com

Is there engineering drawings online for the DEC 871 or 874 power controllers? I have one with a failed solid state relay and I cannot figure out the spec. One is an Opto-Film OFA-2402H and the other is a CLARE 203A05A3A But I cannot find a data sheet for any of those. Does anyone know a compatible replacement device? The pinout is not something I can find amongst the ones at Mouser. /Mattis

9 years, 9 months

2
2
0 0

VCFMW 11

by marvin＠west.net

I am finally getting recovered from my trip to VCFMW... the 2-day (basically non-stop) drive each way was somewhat taxing. And I too wanted to say thanks to everyone who attended along with Jason and crew who made it happen. This was my first VCFMW and the spirit and camaraderie at the whole event reminded me very much of the early VCF events. It was a pleasant surprise to find it a lot larger than what I expected. I got the opportunity to renew old acquaintances, put faces with people I only knew by name, and make a number of new friends. The big bonus for me was reducing the amount of unneeded "stuff" and having the trip pay for itself! (It could have all disappeared and would not have made a dent it the stuff here at the house.) And like Jay, I already have my reservations in for next year. Many thanks to everyone who attended and made it happen!!! Marvin, KE6HTS > Date: Sun, 18 Sep 2016 11:17:52 -0500 From: "Jay West" > <jwest at classiccmp.org> > > I just wanted to say a huge thanks to Jason and crew for putting on > an incredible event last weekend. Last year was fantastic, and this > year the bar was raised again in every area.

9 years, 9 months

1
0
0 0

Compaq Systempro processor board repair

by frankielombos＠gmail.com

Hi, Is the topic still active?

9 years, 9 months

1
0
0 0

Meaning of "architecture width" - Re: 68K Macs with MacOS 7.5 still in production use...

by jnc＠mercury.lcs.mit.edu

> From: Guy Sotomayor Jr > Why? What does the width of the ALU have to do with the "bitness" of > the architecture? If the programmer's view is 8-bits .., what does it > matter (other than performance) what the width of the internal data > paths or ALU are? > It's interesting from an implementation point of view but not really > anything else. What he said (and others made the same point). When talking about processors, "Architecture" = 'what the programmer sees'. > From: Fred Cisin > There are more than a hundred different parameters involved. There is > no definitive agreement as to which parameter is to be used for the > classification, nor even which parameterS. ... a product that has one > classification by one parameter, and a different classification by > another parameter, there will be disputed classifications, since > different parameters are more or less important to each viewer. And this too. (Which is why, for the 68K, I listed several of the main user-visible parameters, and noted that they were all 32 bits.) Noel

9 years, 9 months

1
0
0 0

interesting ... look at both these HP desktops - style come to the comput...

by COURYHOUSE＠aol.com

Christian, Thanks for those links1 Yes the packard bell wegge corner computer I actually need one of those for a display here.... ed sharpe archivist for smecc _www.smecc.org_ (http://www.smecc.org) In a message dated 9/17/2016 8:25:46 A.M. US Mountain Standard Time, captainkirk359 at gmail.com writes: On 17 September 2016 at 01:38, <COURYHOUSE at aol.com> wrote: > look at both these HP desktops - style come to the computer! > If we're going to talk about "modern" computers... I'd like to direct the list to these YouTube videos by Clint, of the Lazy Game Reviews channel (is he on this list?): "Strangest Computer Designs of the '90s": <https://youtu.be/rqyoO4eajXo> "Strangest Computer Designs of the 2000s": <https://youtu.be/fQEOvLeLfTw> There's also actual classic computer stuff on his channel too. Here's an example of him talking about his IBM 5160 PC/XT: <https://youtu.be/VfvGS7qJr4M> Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.

9 years, 9 months

1
0
0 0

interesting ... look at both these HP desktops - style come to the computer!

by COURYHOUSE＠aol.com

look at both these HP desktops - style come to the computer! http://www8.hp.com/us/en/campaigns/elite-slice/overview.html http://store.hp.com/us/en/ContentView?storeId=10151&catalogId=10051&langId=- 1&eSpotName=pavilionwave Ed# _www.smecc.org_ (http://www.smecc.org/)

9 years, 9 months

2
1
0 0

Anyone have any info on a Tektronix X221CHT?

by ethan.dicks＠gmail.com

Hi, All, I unearthed what appears to be a Tektronix X terminal, marked on the bottom: MODEL: X221CHT SERIAL: <serial number> LAN: 08 00 11 <xx> <xx> <xx> KEY: <17 digit alphanumeric> The connectors on the back are: 8-pin DIN marked +5VDC/+12VDC PS/2 Mouse PS/2 Keyboard 15-pin VGA 2x DE9-M serial "RJ45" Ethernet 10Base2 BNC several empty rectangular openings presumable for expansion mods Inside is: Sonic-T DP83934CVUL-25 TI TLC34076-135FN Video SRAM LSI LR33020MC-25 "GRAPHX PROC" Tektronix 160-9461-00 29F010 FLASH EEPROM 2x 72-pin SIMM sockets with on SIMM installed, appears to be 4MB Chip dates are frequently last 60 days of 1996. Two minor SOIC parts have the newest visible date code, 9701. I do not have the PSU for it and have not tried powering it on. I can probably solder some wires to the back of the PCB to feed it +12V and +5V, but I'm a little surprised to find zero information on the web searching for variants of the vendor and model number. Anyone here have any info? If it is an X terminal, it's probably a brick without a somewhat sizable tftp area for it to slurp up. Thanks for any tips, comments or pointers. -ethan

9 years, 9 months

3
3
0 0

TMB11 drawings?

by jnc＠mercury.lcs.mit.edu

> I'll put together a brief page on the Computer History wiki containing > all i've gleaned covering the TM11/TMA11/TMB11 http://gunkies.org/wiki/TM11_magtape_controller Noel

9 years, 9 months

1
0
0 0

TMB11 drawings?

by jnc＠mercury.lcs.mit.edu

> From: Al Kossow > done. Thanks! I've spent a while poring over them, and I can report that the tape interface on the TMA11 and TMB11 is exactly identical. (Oddly enough, there are very minor differences between those of the TM11 and TMA11. Go figure.) So I expect that report of a TU10 plugged into a TMB11 is accurate. I've also compared the TM11 and TMA11, and they have the ssme complement of Flip Chips, with one exception: the TMA11 adds an M7854 "OPI/BTE Detector" - not sure what that might be. It does not seem to be, as I had guessed, for support of 1600 bpi, because the TMA11 only supports 800. I'll put together a brief page on the Computer History wiki containing all i've gleaned covering the TM11/TMA11/TMB11 (pinouts of the drive cable, Flip Chip backplane chart, etc). Noel

9 years, 9 months

1
0
0 0

2.11BSD Device Names

by david＠thecoolbears.org

For 2.11BSD on the PDP-11, in the stand alone utilities that are found on the installation tape, the storage devices are named: dn(x,y,z) where dn is the mnemonic for the driver, x is the controller number, y is the unit number and z is the partition on the unit. So the first partition on the first drive on the first MSCP controller is ra(0,0,0). It's fairly easy form the install tape to disklabel and mkfs a drive on a second controller. Once UNIX is running, things change. The devices in /dev are named ra0 for the first unit on the first controller, ra1 for the second unit on the first controller and etc. I don't see a way in the naming convention to identify other controllers. My question is, what is the device name in /dev for the first drive on the second controller?

9 years, 9 months

3
4
0 0

Meaning of "architecture width" - Re: 68K Macs with MacOS 7.5 still in production use...

by iamcamiel＠gmail.com

Op 15 sep. 2016 11:57 p.m. schreef "Toby Thain" <toby at telegraphics.com.au>: > > On 2016-09-15 2:38 PM, Noel Chiappa wrote: >> >> > From: Chuck Guzis >> >> > Call it anything you want, but we know what Motorola called it. >> >> The _first implementation_ may have been 16-bit, but I am in no doubt >> whatsover (having written a lot of assembler code for the 68K family) >> that the _architecture_ was 32-bit: >> >> - 32-bit registers >> - many operations (arithmetical, logical, etc) defined for that length >> - 32-bit addresses > > > GPR width, being the visible programmer model, is the most common and convenient definition of "architecture" I've come across. But there's no reason we can't just say the *visible* architecture is 32 bit (which it is), but the "internal" architecture is sort of 16. Afaik, the term computer architecture was coined for the IBM 360, which was a 32-bit architecture, with 8, 16, 32, and 64 bit implementations. The term architecture specifically refers to what the programmer sees, not to the specifics of an implementation. Camiel

9 years, 9 months

2
1
0 0

Need help with DSD-440 QBus Controller

by jrw＠lolqb.us

Hi folks, I recently acquired a DSD-440 drive and purchased its accompanying controller on ebay. The controller is configured at defaults according to the manual on Bitsavers. However, unless it is on the bus by itself after the RAM cards, it halts the CPU at location 270. Here are the 4 card configurations I tried, < or > denotes direction of serpentine QBus: Doesn't work: 1 CPU - CPU - CPU - CPU > 2 RAM - RAM - RAM - RAM < 3 RAM - RAM - RAM - RAM > 4 RAM - RAM - RAM - RAM < 5 RAM - RAM - RAM - RAM > 6 DSD - DSD - RAM - RAM < 7 UC07-UC07- --DEQNA-- > 8 --- - --- - --- - --- - --- < 9 --- - --- - --- - --- - --- > OR 1 CPU - CPU - CPU - CPU > 2 RAM - RAM - RAM - RAM < 3 RAM - RAM - RAM - RAM > 4 RAM - RAM - RAM - RAM < 5 RAM - RAM - RAM - RAM > 6 RAM - RAM - --- - --- < 7 DSD - DSD - --- - --- > 8 UC07-UC07- --DEQNA-- < 9 --- - --- - --- - --- - --- > Works (or at least leaves the CPU in the "RUN" state): 1 CPU - CPU - CPU - CPU > 2 RAM - RAM - RAM - RAM < 3 RAM - RAM - RAM - RAM > 4 RAM - RAM - RAM - RAM < 5 RAM - RAM - RAM - RAM > 6 DSD - DSD - RAM - RAM < 7 --- - --- - --- - --- - --- > 8 --- - --- - --- - --- - --- < 9 --- - --- - --- - --- - --- > OR 1 CPU - CPU - CPU - CPU > 2 RAM - RAM - RAM - RAM < 3 RAM - RAM - RAM - RAM > 4 RAM - RAM - RAM - RAM < 5 RAM - RAM - RAM - RAM > 6 RAM - RAM - --- - --- < 7 DSD - DSD - --- - --- > 8 --- - --- - --- - --- - --- < 9 --- - --- - --- - --- - --- > The card says (C)1978 Data Systems Design on it, and the latest manual is (C)1980 - which makes me concerned this is an 18-bit only QBus card. I have not yet tried attaching the drive box to the card, thinking it would at least see the controller without hanging. The box isn't yet clean and ready to go. Any help with this card would be appreciated. Am I doing something wrong, or is this just a bad card? Thanks Julian

9 years, 9 months

2
2
0 0

TMB11 drawings?

by jnc＠mercury.lcs.mit.edu

> From: Al Kossow > http://www.computerhistory.org/collections/catalog/102753063 Ah, excellent! Any chance those can be scanned at some point? (No rush, I'm not about to start working with one instantly - too much else backed up in the queue! :-) >> I saw some queries about whether a TU10 could be connected to a TMB11. >> The answer is apparently 'yes', for two reasons: >> First, I found docs on a thing called a TMA11 (apparently intermediate >> between the TM11 and TMB11), and one version of the docmentation about >> it talks about the TMA11 and the TU10, but another version talks about >> the TMA11 and the TS03. So, by transitivity, if the TU10 works with a >> TMA11, and a TMA11 works with a TS03, and the TS03 works with a TMB11, >> the TMB11 must work with a TU10... >> Second, I have a report of a TU10 found plugged into a TMB11 in a >> retired computer. > the TMB11 is a special widget for the small Kennedy 7" 800bpi tape drive That's the TS03, right? Anyway, there are indications (above) that it will also work with a TU10. If the TMB11 prints get scanned in, I can take a look them, and see what gives. Further (third) clue: the TMB11 Ops manual says "The TS03 tape transport operates at only one density (800 bpi) and iin only one mode of operation (9 track). The TMB11 is capable of other densities and can operate in the 7-track .. modes." I expect this is to support these modes in the TU10... I originally thought the TB11 was TS03-specific, but after reviewing all the above, I have changed my mind. Having the drawings would be great; I could check them out to confirm that it really can drive a TU10. > we do have the TMA11 drwngs Also excellent! The TM11 ones are online, but not (AFAIK) the TMA11. So if that could get done at some point, too... :-) The two are very similar (a 19" rack backplane full of smaller FLIP CHIPs), so it's not like the RK11-C -> RK11-D, where they re-implemented it to make it cheaper. I'm _guessing_ the latter one can handle 1600 bpi, or some such, but with the prints, the difference could be confirmed. > From: Henk Gooijen > IIRC, I have the printset of the TMB11 and ISTR it is one inch thick! Hmm. No idea why - it's only a quad card and a hex card and 4 smaller standard UNIBUS FLIP CHIPs (M105, M7821, etc). Hard to see that generating 1" of paper (even with the wire list for the custom backplane - a hex-high system unit). Maybe that set includes the TS03 drawings too? Noel

9 years, 9 months

2
2
0 0

TMB11 drawings?

by jnc＠mercury.lcs.mit.edu

Does anyone know of the whereabouts of a set of engineering drawings for the TMB11 (also a Technical Manual, although that's more of a luxury)? All I could find on it, online, was the Operator's Manual. Noel PS: In an older thread on TU10's/TM11's here: http://www.classiccmp.org/pipermail/cctalk/2015-September/011810.html I saw some queries about whether a TU10 could be connected to a TMB11. The answer is apparently 'yes', for two reasons: First, I found docs on a thing called a TMA11 (apparently intermediate between the TM11 and TMB11), and one version of the docmentation about it talks about the TMA11 and the TU10, but another version talks about the TMA11 and the TS03. So, by transitivity, if the TU10 works with a TMA11, and a TMA11 works with a TS03, and the TS03 works with a TMB11, the TMB11 must work with a TU10... Second, I have a report of a TU10 found plugged into a TMB11 in a retired computer.

9 years, 9 months

3
4
0 0

68K Macs with MacOS 7.5 still in production use...

by lproven＠gmail.com

http://arstechnica.com/civis/viewtopic.php?p=30456459#p30456459 Found via: http://arstechnica.com/apple/2016/09/an-os-9-odyssey-why-do-some-mac-users-… -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Cell/Mobiles: +44 7939-087884 (UK) ? +420 702 829 053 (?R)

9 years, 9 months

8
13
0 0

More Weird Stuff

by cmhanson＠eschatologist.net

There were a couple more MIPS workstations (with MIPS property tags) at Weird Stuff a couple days ago. Two 3xxx-series and an R/12. Also a bunch of DEC stuff including a VT240 base and several keyboards. -- Chris Sent from my iPhone

9 years, 9 months

3
2
0 0

Tips for getting to CHM from SJC airport without a car?

by barythrin＠gmail.com

A bit off topic other than tips for anyone else trying to travel cheaply. I have a trip to California in a month although the final destination isn't San Jose. I can fly in to SJC and Google is sounding like I might be able to get a few bus hops from the airport and find my way there? Any tips, tricks or warnings? *(more off-topic below, feel free to stop above for helping anyone venture around to CHM). No idea if I'm testing my luck neighborhood wise and debating taking a bus or train from Mountain view to Pasadena after my free day. Feel free to email me offline if this is too far from list interest. Mostly if anyone was to benefit it would be what's the cheapest route to spend a day at the CHM and then return to the airport again. - John

9 years, 9 months

3
2
0 0

Ill-considered complaints [was: RE: early networking (was Re: G4 cube (was Re: 68K Macs with MacOS 7.5 still in production use...))]

by RichA＠LivingComputerMuseum.org

From: Dale H. Cook Sent: Wednesday, September 14, 2016 9:52 AM > Please do not change the subject line in a thread. The subject line of > this thread has been changed twice since it began as "68K Macs with MacOS > 7.5 still in production use..." When you change a subject line the header > information concerning the subject is unchanged, and that is what the > list archives and some email clients go by. There are now three threads > concerning different subjects archived as one thread at classiccmp.org. > If you want to change a subject please start a new thread, and if you > wish you can give the new thread a subject line such as "New Subject (was > Old Subject)" to reflect its origin. Actually, Mr. Cook, the standard for the last 35 years or so has been to change the subject line, with the old subject in SQUARE BRACKETS with the characters "was: " prepended. Any decent newsreader or threading mail reader knows how to deal with that, and threading is unbroken. What was broken in the messages about which you complain is the substitution of parentheses () for brackets []. See the subject line on this message for an example. Rich Rich Alderson Vintage Computing Sr. Systems Engineer Living Computer Museum 2245 1st Avenue S Seattle, WA 98134 mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

9 years, 9 months

7
6
0 0

Subjects, Topics and Threading

by classiccmp＠crash.com

On 09/14/16 09:52, Dale H. Cook wrote: > > Please do not change the subject line in a thread. The subject line > of this thread has been changed twice since it began as "68K Macs > with MacOS 7.5 still in production use..." When you change a subject > line the header information concerning the subject is unchanged, > and that is what the list archives and some email clients go by. > There are now three threads concerning different subjects archived > as one thread at classiccmp.org. And what's so horrible about that? I miss entire conversations because somebody starts discussing something I *would* find interesting under a misleading Subject: and never changes it. Oh well - people will do what they do, thank goodness for search... How do you justify making everybody conform to your preferred behavior? Even though I did what you wanted in this reply/new topic. ;) But now nobody can see what I didn't quote from your original message without going off and running a search - isn't that annoying too? --S.

9 years, 9 months

8
10
0 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb