test-drb

test-drb@ccmp.vtda.org

101090 discussions

by bill.gunshannon＠hotmail.com

Well, I was finally able to get a PMI memory board to expand my 11/93 to the full 4 Meg. (Thanks Paul!) I thought it would be as simple as configuring what bank I wanted it to fill and inserting it (in front of the CPU). Sadly, that didn't work. First problem is the only document i could find is not for the actual version of the board I have. It has the same switch sets so I tried it anyway. Set it to be in the upper 2Meg and gave it the next CSR after the on board memory. No luck. 11/93 still reports 1024KWords and the Map command shows neither the additional memory or the second memory CSR. Anybody have any experience with this? Is there a switch I have to change on the CPU module to make it recognize the additional external memory? IS there something about PMI that I am missing? Any advice gratefully appreciated. bill

7 years, 2 months

Latest additions to Sellam's sale list

by sellam.ismail＠gmail.com

Happy Spring, fellers! Here is the latest batch of goodies for your perusing pleasure: Amiga 3000-25/50 Commodore 1902A Monitor Daystar Digital Turbo 601 Accelerator Radius Precision Color Pro 24XK Accelerated 24-bit Graphics I/F Atari Mega ST4 Atari Mega ST Keyboard (American) HP Plotter Pens 0.3mm - 5 pen BLACK Pack (Paper) HP Plotter Pens 0.3mm - 5 pen BLUE Pack (Paper) HP Plotter Pens 0.3mm - 5 pen PURPLE Pack (Paper) HP Plotter Pens 0.3mm - 5 pen ORANGE Pack (Paper) HP Plotter Pens 0.3mm - 5 pen RED Pack (Paper) HP Plotter Pens 0.3mm - Multi-Color Custom Pack (Paper) HP Plotter Pens 0.6mm - 5 pen GREEN Pack (Transparency) HP Plotter Pens 0.6mm - 5 pen BLUE Pack (Transparency) HP Plotter Pens 0.6mm - 5 pen RED Pack (Transparency) HP Plotter Pens 0.6mm - 5 pen PURPLE Pack (Transparency) HP Plotter Pens 0.6mm - 5 pen Multi-Color Pack (Transparency) HP Plotter Pens 0.7mm - 5 pen BLACK Pack (Paper) HP Plotter Pens 0.7mm - 5 pen GREEN Pack (Paper) HP Plotter Pens 0.7mm - 5 pen BLUE Pack (Paper) HP Plotter Pens 0.7mm - 5 pen PURPLE Pack (Paper) HP Plotter Pens 0.7mm - 5 pen RED Pack (Paper) IBM PCjr with IBM PCjr Carrying Case IBM Terminal Controller Port Box IBM PS/1 Consultant Atari 520ST Atari Portfolio Technical Reference Guide HP 9815 Hayes Smartmodem 1200 Hayes Smartmodem 2400 Hayes Smartmodem OPTIMA 2400 Iomega PC800B SCSI Controller Star Micronics NX-1000 Multi-font Printer Disk interface bus monitor Electrohome TTL Color Interface Navarone Commodore 64 carthridge port expander Practical Peripherals Pocket FAX/Modem Apple StyleWriter II Sun Microsystems SPARCstation 1 Sun Microsystems SPARCstation Prototype Links to information on these items and more can be found here: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… Photos on the latest posted items will be available later this evening. You may always inquire if you require more information on a particular item. Per standard procedure, please contact me directly via e-mail to make an offer on a particular item. Thanks! Sellam

7 years, 2 months

Digital Standard Mumps

by bill.gunshannon＠hotmail.com

Does anyone know what the current status of this might be? I am fairly certain Mentec didn't get this and I am not sure anyone did. Did it merely die when everyone thought Mumps was on the down hill slide? Was it ever really a DEC product or was it something DEC picked up along the way after Mass General let it out of its cage? bill

7 years, 2 months

PDP-11/83 w/FPU?

by jnc＠mercury.lcs.mit.edu

> From: Allison > Experience is that an 11/23 or 23+ will run V6 as mine does. What changes did you make to get it to run? (I assume the stock binary wouldn't run.) Noel

7 years, 2 months

PDP-11/83 w/FPU?

by jnc＠mercury.lcs.mit.edu

> From: W2HX > i have a few CPUs available to me, a 11/23+, an 11/73 and I also have > available to me an 11/83 > I would like to try to run as many different OS's as may interest me, > including some unixes as possible (bsd...etc). Early Unixes in general will run on those machines - but not straight off the tape (since they didn't exist then, and have quirks which aren't supported). I've brought up V6 on a /23 (which must have the KTF11-A MMU chip); here: http://gunkies.org/wiki/Running_UNIX_V6_on_an_-11/23 are instructions on exactly what (minor) changes need to be made for it to run. The /73 and /83 should be subsets of that, although you'll want to start with m45.s, because those machines support the split-I-D MMU of the -11/45. (A /23 Unix binary would boot/run on them, if you don't feel like doing a special one for them.) I haven't yet tried V6 on them; if you want me to, and do a writeup, let me know. The /73 and /83 have LTC registers, so on those you won't need the LTC hack. Also, you may know this already, but if not, note that the /83 is a PMI: http://gunkies.org/wiki/Private_Memory_Interconnect machine, and _MUST_ be plugged into a Q/CD backplane _only_; plugging into a standard Q/Q backplane will _damage_ it. > would I see any improvement in performance with the FPU compared to > without it? Or does the application running need to be something like > fortran to see any perceivable difference? As someone noted, the /73 and /83 implement thefloating point instructions in microcode, so the code can't tell if the optional FPJ11 FP hardware accelerator is plugged in or not. In general, only on applications (the language is not relevant) which are heavy users of FP would you see any difference. On the /23, with no KEF11-A FPU chip plugged in, there are no floating point instructions at all, so any application which tries to use them will blow out (although under V6 there's an emulator); see here: http://gunkies.org/wiki/Setting_up_UNIX_-_Sixth_Edition and search for 'floating point' to see discussion of it). > From: Ethan Dicks > v5, v6, and v7 UNIX shouldn't require any sort of math hardware. Don't know v5/v7 in detail, but AFAIK that's accurate. V6 can _support_ FP hardware on machines which have it, and is otherwised prepared to emulate those instructions (see above). > From: Paul Koning > I think that was typically called "EAE" (extended arithmetic element), > a Unibus peripheral that implemented integer mul/div ... It only > applies to 11/20 and 11/05 since all the other machines have the > relevant instructions built into the CPU. Also the -11/04 and -11/03 were both missing the EIS; the former could use the EAE, for the latter the optional KEV11-A or KEV11-B microcode chips both provide it. > From: Josh Dersch > The EAE was also an option on the 11/40. Technically, on any UNIBUS machine; on the /40, the EIS (added instructions, not the device model of the EAE) was available via an optional board in the CPU. Noel

7 years, 2 months

Plane of core memory

by blstuart＠bellsouth.net

On Thu, 4/18/19, dwight via cctalk <cctalk at classiccmp.org> wrote: > My understanding was that the mercury delay lines > needed periodic repairs ( not sure what the cause > was but mercury does dissolve into many metals ). > If I were going to make a delay line memory, I'd go with > the magnetostrictive. These are practical to make. One just > needs a little ingenuity and a spool of piano wire. > Dwight Or still do a fluid one, but take Turing's suggestion and use gin as the medium. BLS

7 years, 2 months

PDP-11/83 w/FPU?

by w2hx＠w2hx.com

?Hi friends. I am putting together a PDP-11 set up. i have a few CPUs available to me, a 11/23+, an 11/73 and I also have available to me an 11/83, M8190-AE . I would like to try to run as many different OS's as may interest me, including some unixes as possible (bsd...etc). My question is, are there any OSes that need the floating point option? Another question is, would I see any improvement in performance with the FPU compared to without it? Or does the application running need to be something like fortran to see any perceivable difference? Thanks

7 years, 2 months

Testing...

by cctalk＠gtaylor.tnetconsulting.net

...cctalk digest mark as read. -- Grant. . . . unix || die

7 years, 2 months

Pleas ID this IBM system....

by h.j.stegeman＠hccnet.nl

Hi William, I contacted the seller and asked for the docs. He returned some pics with a pile of BBB's. Regards Henk www.ibmsystem3.nl

7 years, 2 months

ATEX PDP-11 For Sale in Houston

by tsraguso＠gmail.com

I am selling an Atex PDP-11/34. The computer has: J11 CPU, 11 MB RAM, 2 BA11-LE expansion chassis, a second backplane, an SMD disk controller and LAN hardware. Items are all untested, sold as-is. Local pickup is preferred, but I will consider shipping freight. Please make an offer on the whole machine, or any piece of it.

7 years, 2 months

Adding floppy drives to my PDP-11?

by jnc＠mercury.lcs.mit.edu

> From: Charles Morris > it appears that the RXV21 will only work with an RX02 drive... So an RX02 can be jumpered to work with the non-DMA RXV11; but the DMA RXV21 can't be configured to work with an RX01. Which of these two is a more interesting/useful thing to be able to do? People at MIT used to theorize the existence of a virulent biological virus, 'Honeywell Brain Damage'; I wonder if there's a DEC mutation? > Just wondering what my options are for hooking up any kind of floppy > drives. I could sell the RXV21 and buy/trade for an RXV11 (M7946) > instead Those used to be fairly common on eBay for not many dineros; I only see one moderately expensive one at the moment, though. I'd definitely go this way, though - maybe Paul A has one available? Noel

7 years, 2 months

Dilog CQ1610 switch settings?

by charlesmorris800＠centurytel.net

I have a Dilog CQ-1610 serial line card (16 ports!) that I'd either like to sell, or at least put it in my backplane and play with it since I have a copy of TSX+ :) But I can't find any info, especially the DIP switch settings. All I see is "emulates a Unibus DH-11" but that is not even close for hardware/layout. Any thoughts? thanks Charles

7 years, 2 months

"arx-149" computer. .. what Is?

by couryhouse＠aol.com

It is in a? metal? suitcase appears? to? be? military analog? computer Ed! In a message dated 4/15/2019 11:52:41 AM US Mountain Standard Time, cctalk at classiccmp.org writes: On 4/14/2019 5:44 PM, Sam O'nella via cctalk wrote: > Is there a specific reference you have for this? > > Sent from my Apple /////c > >> On Apr 14, 2019, at 2:16 AM, ED SHARPE via cctalk <cctalk at classiccmp.org> wrote: >> >> "arx-149"? computer. .. what Is?thanks ed# > I'd like to know too. I never could quite understand just what Marvin The Martian said. " The *** 32 * **** um *space ** xx ** later *, :)

7 years, 2 months

"arx-149" computer. .. what Is?

by couryhouse＠aol.com

"arx-149" ? computer. .. what Is?thanks ed#

7 years, 2 months

DELQA?

by aaron＠aaronsplace.co.uk

Unsurprisingly the DEQNA card in my PDP-11/73 is quite unstable and results in 2.11BSD panicing. Is there anything that can be done about this? Other than unplugging it that is... I don't think there very much broadcast traffic making its way to the PDP. It's usually when I'm transferring files. If not, does anyone have a DELQA card they would be willing to part with (preferably in the UK) for a sensible price? Thanks, Aaron. -- Aaron Jackson - M6PIU Researcher at University of Nottingham http://aaronsplace.co.uk/

7 years, 2 months

FS: Qbus serial line cards

by charlesmorris800＠centurytel.net

I ran this ad back in 2015, will try again :) I was going through my board collection and found three PDP-11 boards I've never used in years and don't see a foreseeable need. No idea of condition, but they're visually clean and neat, stored in antistatic bags. The serial cards came out of my working 11/23+ but I've not tested them (since I already have a 16-line card and only 2 terminals). I have (one each): M7957 DZV11 Quad height 4-line serial card M8053 DMV11 "Microprogram Control" synchronous controller card (looks like it was intended for networking with 56k modems) Dilog CQ1610 16-line serial card. Make any reasonable offers. + shipping from US zip 65775. thanks Charles

7 years, 2 months

Adding floppy drives to my PDP-11?

by charlesmorris800＠centurytel.net

I have a PDP-11/23+ with two RL02's in a corporate cabinet but no floppy drives. Also an RXV21 (M8029) card. My PDP-8/A has RX01 drives, and I was hoping just to run the cable over to the -11 when I wanted to use floppies on it. But after some searching, it appears that the RXV21 will only work with an RX02 drive... Just wondering what my options are for hooking up any kind of floppy drives. I could sell the RXV21 and buy/trade for an RXV11 (M7946) instead, to use with the RX01 in the other rack. Or look for an RX02 that won't break the bank - but that won't fit in the corporate cabinet. I do have another cabinet but it's got other rack-mount gear in it at the moment. What about smaller drives (RX50? RX33?)... can those be interfaced to the 11/23+ Qbus? Other thoughts? thanks Charles

7 years, 2 months

Interesting article in Spectrum about IBM's System/360

by ce.murillosanchez＠gmail.com

Building the System/360 Mainframe Nearly Destroyed IBM https://spectrum.ieee.org/tech-history/silicon-revolution/building-the-syst…

7 years, 2 months

Daisywhell typewriter emulating a TTY

by couryhouse＠aol.com

I? remember? in '79? ?a? KSR? Diablo? was? ?the? dream? KSR? printing? terminal? and? ?cost? like? ?3? grand? Oh? how? we? used? to? dream of having one of these? back then! We? do have? one in the museum's? collection...? although? ?have not attempted to power up? to use. Ed# In a message dated 4/10/2019 8:40:58 AM US Mountain Standard Time, cctalk at classiccmp.org writes: On 4/10/19 8:16 AM, Jon Elson via cctalk wrote: > On 04/10/2019 03:38 AM, GerardCJAT via cctalk wrote: >> I would like to emulate a TTY, using a daisywheel typewriter. >> > Well, there are Qume and Diablo.? Diablo was bought by Xerox, so some of > them carry that label. > Most of the stand-alone versions had serial (RS-232) ASCII interface. I've given a couple of the Diablo KSRs (that's what the Hitypes with the keyboard were known as).? I didn't care for them much--no immediacy of sound and keypress--the two seem unrelated. Daisywheel printers are incredibly difficult to get rid of--nobody wants to pay shipping.? I got rid of the last one by throwing in a complete system with it.? Still have a NEC Spinwriter mouldering away. --Chuck

7 years, 2 months

Control Console, but not PDP-10

by dr＠birkel.org

The PDP-10 Control Console sold for $3,650.00. Amazing! Now consider a DSKY. Currently at $27,500.00. Auction estimate: $60,000+ Great provenance! ?The DSKY that saved Apollo 14.? https://www.rrauction.com/bidtracker_detail.cfm?IN=5222 -----

7 years, 2 months

TeleVideo's MmmOST

by pat＠vax11.net

I've been adding a few more blog posts, and put up the first one on what (to me) makes TeleVideo actually interesting - their MmmOST client/server operating system. I hope to get more up soon, but I have a (somewhat lengthy) introduction based on what I've been able to learn about MmmOST: https://worldofvax.blogspot.com/2019/04/televideo-systems-part-v-mmmost.html I'm still looking for TS-800A's and TS-806/816's if anyone has some laying around. It'd be informative to get a real MmmOST service processor up and running. Pat

7 years, 2 months

Daisywhell typewriter emulating a TTY

by mark＠markesystems.com

On 4/10/19 8:16 AM, Jon Elson via cctalk wrote: > On 04/10/2019 03:38 AM, GerardCJAT via cctalk wrote: >> I would like to emulate a TTY, using a daisywheel typewriter. >> > Well, there are Qume and Diablo.? Diablo was bought by Xerox, so some of > them carry that label. > Most of the stand-alone versions had serial (RS-232) ASCII interface. The Diablo was the first one I thought of. I had one for some time, and it was very reliable and produced high quality output. Also much faster than the Teletype, and faster also than the TermiNet 300 I had at the same time. There's currently one on eBay: https://www.ebay.com/itm/263756218024 ~~ Mark Moulding

7 years, 2 months

Daisywheel typewriter emulating a TTY

by james＠attfield.co.uk

>> Date: Wed, 10 Apr 2019 10:38:00 +0200 >> From: "GerardCJAT" <gerardcjat at free.fr> >> To: <cctech at classiccmp.org>, <cctalk at classiccmp.org> >> >> I would like to emulate a TTY, using a daisywheel typewriter. >> One immediately think : " Find an IBM Selectric, a Friden flexowriter or a like " >> But NO, I want something less complex, mechanical wise. >> That's why I want to investigate on daisywheel typewriters. >> I am aware of IBM Actionwriter and Triumph/Adler/Royal Gabriele 9009 that can be used >> as a printer with a dedicated interface BUT that is one way only : Printer only ! >> From my investigation, **** so far ***, KEYBOARD does not send ( upload ? ) any signals. >> ( or a special command code is required ?? ) >> Any suggestion for "others" daisywhell typewriters that could do >> OR someone already went this way ? >> OR any documentation ( even user's manual ) on the dedicated interface : >> ( IF 600 Computer Interface for Triumph/Adler/Royal Gabriele 9009 ) >> ( ???name??? for IBM Actionwriter ) I immediately thought - any reason a Diablo 1650 wouldn't do?

7 years, 2 months

Daisywhell typewriter emulating a TTY

by gerardcjat＠free.fr

I would like to emulate a TTY, using a daisywheel typewriter. One immediately think : " Find an IBM Selectric, a Friden flexowriter or a like " But NO, I want something less complex, mechanical wise. That's why I want to investigate on daisywheel typewriters. I am aware of IBM Actionwriter and Triumph/Adler/Royal Gabriele 9009 that can be used as a printer with a dedicated interface BUT that is one way only : Printer only ! >From my investigation, **** so far ***, KEYBOARD does not send ( upload ? ) any signals. ( or a special command code is required ?? ) Any suggestion for "others" daisywhell typewriters that could do OR someone already went this way ? OR any documentation ( even user's manual ) on the dedicated interface : ( IF 600 Computer Interface for Triumph/Adler/Royal Gabriele 9009 ) ( ???name??? for IBM Actionwriter )

7 years, 2 months

by cctalk＠ibm51xx.net

I rescued a LaserJet 4+ printer that I have been trying to restore. Initially everything seemed ok and it seemed as if there may be just a bit of an issue with paper pickup which I attributed to old paper in the tray. However, soon I started getting the accordion paper jam which led me to replacing all the rollers including the transfer roller. Now the paper flows freely! However, I am having a new problem with printing. When I print, the first 5-10 pages initially come out blank. The printer does not produce any errors or error codes. The blank pages are warm (not hot though) as expected out of a LJ. After closer inspection it seems that the pages are printed SUPER light and gradually get darker the more I use the printer continuously. Eventually the printer starts printing continuous crisp black pages like new. This is a whole page phenomenon (i.e. not gaps, missing areas, etc.). A picture of the effect can be seen on VFC at: www.vcfed.org/forum/attachment.php?attachmentid=52120&d=1554074105 Sorry for the poor quality picture. Things I have checked/tried: 1. Using a brand new NOS toner (according to HP toner does not go bad as long as it was sealed - which this was) 2. Swapping the new transfer roller for the old one - same problem, I have to print out a bunch of pages until the printer starts acting normally. 3. I have checked the HV and an image is being transferred to the drum on the toner cartridge. 4. A visual inspection of the fuser shows it to be ok. Obviously this is happening printing demo pages so it has nothing to do with computer, OS, SW, drivers, etc. Anybody run into this before? Any ideas/suggestions. My Google fu turned up a bunch of discussions on the laser door not being aligned correctly but that would seem to be a more permanent issue i.e. unless you fixed the door no pages should print ever. Mine gets better on its own after a number of pages are printed. Plus the door and spring are fine - I checked them just in case. I tried posting on FixYourOwnPrinter.com but for whatever reason the site was not accepting the question. Any other forums you guys would recommend? TIA! -Ali

7 years, 2 months

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