test-drb

test-drb@ccmp.vtda.org

101090 discussions

Fire-Sale PDP-11 update (and request for parts)

by jfoust＠threedee.com

At 12:41 AM 12/5/2020, Josh Dersch via cctalk wrote: >Thought you folks might be interested in a quick update on my folly here. > >At the beginning of November I drove down to the bay area to pick up the >two fire-damaged PDP-11 systems -- a PDP-11/70 and a PDP-11/45. (I also >made a few other stops and got a few other items, but that's not what I'm >here to talk about...) Darn, I thought you'd tell some other tales of what Dale had in his warehouse. - John

5 years, 4 months

[cctalk] WTD - Jupiter Ace plastic rivets

by w9gb＠icloud.com

Phil - Search for Push-In Rivets (plastic, nylon, etc.). Two of the largest mfg. of plastic Push Rivets are just east (Richco, River Forest, IL) and north (Fastex, Des Plaines, IL) of me. Both have been acquired by larger conglomerates. ? Richco (River Forest) was bought by Essentra Components (UK) in December 2011. https://www.essentracomponents.com/en-us/s/push-in-rivets Global HQ for Essentra is in your neighborhood (Ask for Samples). Langford Locks Kidlington, Oxon, OX5 1HX United Kingdom Tel: +44 (0) 1865 844572 Fax: +44 (0) 1865 844488 orders at essentracomponents.co.uk www.essentracomponents.com/en-gb ==== ITW/Fastex : Push Rivets (Des Plaines, IL) acquired by Illinois Tool Works (ITW). https://www.itw-fastex.com/rivets.html == greg, Chicago === Date: Fri, 4 Dec 2020 02:20:55 +0000 From: Philip Pemberton <classiccmp at philpem.me.uk> To: cctalk at classiccmp.org Subject: WTD - Jupiter Ace plastic rivets Has anyone got a couple of the white plastic rivets which are used to hold the Jupiter Ace case together? They consist of a 4-point clawed rivet of about 5mm long, and a pin which pushes down the centre to open it out. I need five of them ideally - but even two or three would get the case buttoned up, if not perfectly. I've checked the local plastic supplier catalogues and haven't found anything which quite matches up. Cheers, -- Phil. philpem at philpem.me.uk https://www.philpem.me.uk/ Sent from iPad Pro

5 years, 4 months

Taking apart a Perq

by cz＠alembic.crystel.com

So I'm getting into the "I can see the box" layers in the excavation project, and I have a question: I've got a box that may be a Perq, and a printer that may be a Perq printer. The printer looks like an old Laserjet I, and the box is metal, 3ish feet tall, and has what looks like a 10 inch hard disk inside. Problem is I won't be able to get it up the steps. (Where have I heard that before). So how much can one take a Perq box apart to make it as light as possible? Is it simple to get the drive out? Power supply in there somewhere? How about the card cage? Pics at: https://i.imgur.com/ohuohvC.jpg https://i.imgur.com/81him0F.jpg

5 years, 4 months

Looking for Hazeltine 2000 keyboard

by dfnr2＠yahoo.com

Hello, I just picked up a Hazeltine 2000c? terminal without the keyboard.? If anybody might happen to have (or know of) a spare Hazeltine 2000 keyboard, I would be very interested.? I realize it's a long shot. The keyboard is a standard ASCII keyboard, with several extra function keys and lights, so I'm pretty sure I can whip up a replacement, but the whole point is to recapture the original look and feel.? Back in the '70s, Memphis State (Now U of M) had a few of these terminals, and a great many Hazeltine 1500 terminals.? I've been hunting for a Hazeltine 2000 for ages.? It would be awesome to have one up and running. Dave

5 years, 4 months

Votrax Type N Talk or PSS, Intextalker, Microvox

by robert.stek＠gmail.com

If anyone knows of an available unit (at considerably less than the $500 one on eBay), please let me know. I actually have one SC-01-A and would even take a unit missing the Votrax chip - I understand some units were scavenged for the chip for several video arcade machines which used them.

5 years, 4 months

Apple IIe case screws

by mokuba＠gmail.com

Does anyone know the size/threading of these? I've been searching high and low and haven't been able to find any approximate or otherwise specs (they use captive clips, so close is OK) - i've found the PSU mounting screw sizes and sourced those though. -- Gary G. Sparkes Jr. KB3HAG

5 years, 4 months

Boot Roms for MRV11-C

by dj.taylor4＠comcast.net

The boot roms for the MXV11-B multifunction board can be used in the MRV11-D general purpose ROM q-bus board.? Neat if you want to put together a small system. I have a MRV11-C board and it differs from the MRV11-D board primarily in the ROM sockets, 24 pin on the MRV11-C and 28 pin on the MRV11-D so I can't use the MXV11-B ROM's directly. Can the MXV11-B ROM set be adapted for the MRV11-C board?? If not, what can you use as a bootstrap ROM set on the MRV11-C? Doug

5 years, 4 months

Radio Shack 8MB hard disk for Model II

by spacewar＠gmail.com

I had occasion to look at the service manual for the Radio Shack 26-4150 8MB hard disk which was used with the Model II (and potentially could be used on 12, 16, 16B or 6000). Note that this drive is not compatible with the Model I, 3, or 4, and the cable wiring between the computer and the controller (inside the drive box) is entirely different than what was used on the later 5, 12, 15, 35, and 70 MB drives. The Model II host adapter for the 8MB drive thus is only useful with the 8MB drive, and vice versa. There were later Model II host adapters that could be used with the 12, 15, 35, and 70 MB drives, which were also useful on the Model I, 3, and 4. Anyhow, I discovered that according to the documentation, the 8 bit data bus between the host interface and controller uses 8T26 bidirectional buffers at each end, which are rated to sink up to 24 mA, but the schematics show that Radio Shack put 220/330 ohm terminators on the data bus lines at BOTH ends of the cable! That requires the 8T26 to sink as much as 55 mA, which means that its logic zero output voltage is likely to exceed its normal rating. At the very least, this will result in reduced noise immunity. I don't have an 8MB host interface or drive in hand to confirm, but the photos I've found online do show the resistor networks on both ends. The controller (inside the drive box) is a modified version of a WD1000, configured for use with the 8-inch SA1004 drive, which operates at 4.34 Mbps, NOT 5.00 Mbps like 5 1/4" drives. Aside from that, it has a different host pinout than a normal WD1000 (or than the later Tandy controllers), and has extra circuitry for dealing with write protection. Electrically, the host interface is otherwise the same as the WD1000. Normally the data bus for the WD1000 would only be single-terminated at the controller end. That is in fact what Radio Shack did on all of the later host adapters.

5 years, 4 months

Anyone want some LMI Lisp Machine tapes?

by lproven＠gmail.com

https://www.ebay.de/itm/254795423667 ?1 ? LISP MACHINE INC 1/2" Reel Tapes Anyone who opens this auction will know what this is - and how unique these tapes are. The lot is consisting of 13 tapes, which are labeled as follows: LMI FORTRAN 77 #1352-0000 LMI Release 2.0 two tapes LMI Boot / SDU 3.14 #3143-0000 Rev A LMI REL 3.1 Patch Tape 1600BPI 30. SEP 1987 LMI CS Tape Experimental 6. AUG 1987 LMI UCODE 1599 11 FEB 1987 LMI RELEASE 2.0 Diagnostics #1022-0000 LMI LISP SOURCE LMI Release 3.0 LISP System 3.205 Microcode 1593 plus four unlabeled tapes plus two loose tape label, not assignable to the tapes unlabled The tapes were not tested for readability by me and will be sold as is. Shipment world wide, please ask for shipment costs - additional insurance cost might be apply. ? -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053

5 years, 4 months

Dec ultrix 32 reference books for sale

by lyokoboy0＠gmail.com

I have a bankers box worth of dec ultrix 32 reference manuals in grey dec binders. Im looking to sell the box of books for a few $ plus the cost of shipping. Hoping to find these books a good home. --Devin D.

5 years, 4 months

Heathkit H89A (was accidentally circuit cellar...)

by shumaker＠att.net

Thanks!?? No clue which of us were first but if the museum is interested, I will pass. Steve Shumaker On 11/30/2020 12:42 PM, Tom Uban via cctech wrote: > Valparaiso, IN. > On 11/29/20 4:21 PM, s shumaker via cctalk wrote: >> where are you? >> >> Steve >> >> >> On 11/29/2020 9:37 AM, Tom Uban via cctalk wrote: >>> I'm sorting through my stuff and have Heathkit H89A computer. Last time I messed (20 years ago) it >>> showed signs of life, but was not fully functional. I do have a manual for it. >>> Pics upon request. >>> Any interest? >>> >>> --tom >>> >>>

5 years, 4 months

VMS on x86-64/ARM/RISC-V? - was Re: Microvax 3100 VMS 7.3 password reset

by camiel.vanderhoeven＠vmssoftware.com

On 11/14/20, 1:49 AM, "cctech on behalf of Adam Thornton via cctech" <cctech-bounces at classiccmp.org on behalf of cctech at classiccmp.org> wrote: > I mean obviously the NEXT thing to do is start bugging VSI for ARM support?given that the OS runs on VAX, Alpha, Itanic, and x86_64, how much really crucial and hard-to-port assembly can be left in it??and given the way datacenters are trending, it might not even be a commercially stupid move. I want to run VMS on my phone (or my next Mac). Doesn?t everyone? Hi Adam, Possible architectures beyond x86 we're keeping an eye on are ARM and RISC-V, but they'll need to start doing a lot better in the datacenter before it'll be worth our while. So far, ARM in the datacenter hasn't taken off the way many predicted it would. One thing I'm better at than crystal ball gazing though, is I can give you an idea of how much hard-to-port assembly is left, since I wrote most of the x86 assembly code in it :-) With the port to x86, we made a conscious effort to minimize the amount of code written in assembly; so at this point, it's pretty much limited to code where (a) we can't use the stack, or we need to manipulate the stack pointer in a non-standard way; (b) we need to use a special instruction that we don't have a compiler builtin for (these are mostly cases where an instruction is only used in one place); and (c) code that needs to mix calling standards - i.e. the code shims necessary to interact with the UEFI firmeware. Category (a) is obviously the more interesting one, and that includes things like code that is responsible for switching between VMS' four modes (kernel, executive, supervisor, and user mode), and context switching for the schedulers (OS scheduler, kernel process scheduler, and POSIX threads scheduler). The OS scheduler is a good example of our effort to eliminate assembly code. On VAX, Alpha, and Itanium, the scheduler loop and the idle loop (which performs maintenance tasks such as dirty page zeroing) were written in assembly, and re-written with each port. For x86, I rewrote these in C, using small assembly helper routines only in the critical parts where it couldn't be avoided. In total, there are 30 modules that were written in x86-64 assembly. I'd classify 10 of those are trivial, 16 as average, and 4 as complicated and difficult. The complicated and difficult category contains code responsible for dispatching system services, handling interrupts and exceptions, delivering ASTs. As much design and work was involved in those assembly modules though, a whole lot of x86-specific work was done for the MACRO-32 compiler. MACRO-32 originated as the VAX assembler, and while it is a compiler on other architectures, it is still much like an assembler, and specific translations from the VAX instruction set to the target architecture need to be made. The MACRO-32 compiler talks to the LLVM code generator backend at a lower, more instruction-centric level than the compilers for higher languages, and this work is very x86-64 specific. Given that about 1/3 of the OS is written in MACRO-32, we won't get rid of MACRO-32 code in the OS any time soon. (The other 2/3rds are written in BLISS and C) Also, in the C, Bliss, and MACRO-32 code, lots of conditionalizations are made on architecture. Certain things are done differently on Alpha than they are on Itanium, and on x86 we sometimes do things the way we did them on Alpha, sometimes the way we did them on Itanium, and sometimes we need to come up with an x86-specific way. So, the port to x86 has made a future port to ARM or RISC-V easier; particularly by moving to the LLVM code generator backend, and by figuring out how to run a four-mode OS on a two-mode architecture without sacrificing the benefits of running in four modes; but it has by no means made it trivial. Camiel

5 years, 4 months

DEC PDP-8/E wanted - still looking

by ccth6600＠gmail.com

Tom Uban fully built "Spare Time Gizmos" SBC6120 based computer complete with front-panel and IO board is on its way to me. :-) I am still looking to buy one of the following PDP-8 models: PDP-8/F PDP-8/E PDP-8/L PDP-8/I PDP-8/M Dave, Chris, Paul and Robert I am looking forward to getting more details >from you. I am happy to pay a reasonable price for the right PDP-8, so a seller won't be disappointed. Thanks and best regards Tom Hunter

5 years, 4 months

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

by keith＠saracom.com

Hi Liam, As stated in my OP, I was using Windows 10 and USB adapters. I used Rufus, Active Disk Image, and Macrium Reflect programs to copy it an image file and then back to the CF. They are supposed to create exact images of the drives but I think they do not. Of course it could be something with my CF to USB adapter. As far as errors, as stated in my OP, "Since the voicemail card is running headless, I can't see the error messages." The only way I know of a successful boot, is one LED turns green and then I can call in to the VoiceMail card. I am going to try a Linux machine and DD next. > ------------------------------ > > Message: 5 > Date: Fri, 27 Nov 2020 16:12:39 +0100 > From: Liam Proven <lproven at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone > issues > Message-ID: > <CAMTenCFACtaGvYBp3cowxhWjestSyBmeyUx=8RXjJ8er3O__-w at mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > On Fri, 27 Nov 2020 at 01:32, keith--- via cctalk <cctalk at classiccmp.org> wrote: > >> I have tried to copy it to an industrial CF >> card but no luck. I have used Rufus, Active Disk Image, and Macrium >> Reflect. > > First question: how did you try to copy it? > > You've not given us anywhere near enough info to try to troubleshoot the issue. > > ? What did you connect it to? > ? How did you connect it? > ? What did you try to copy it onto? > ? Partitioned how? > ? Formatted with what FS, using what tool? > ? What OSes did you try? > ? What errors did you get?

5 years, 4 months

ISO earl TI DSP kits

by aek＠bitsavers.org

CHM doesn't seem to have much early DSP stuff in the collection Does anyone have any of the TMS32010/20/30 or C1x/2x/3x hw/sw kicking around? Other than the docs I've scanned there doesn't seem to be much on the web either.

5 years, 4 months

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

by keith＠saracom.com

Hi Chris, I will give Linux and DD a try. I do have an USB to 2.5 inch IDE adapter. thanks Keith On 2020-11-28 13:00, cctech-request at classiccmp.org wrote: > The way I would do that is to use a Linux / unix machine and one of the > cheap ebay usb to ide adapters, then use dd to image the whole drive > to a file. That should copy block, including the boot block and > partition table. Use the reverse process to image the file back to > another drive... > > Chris

5 years, 4 months

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone, issues

by syseng＠gfsys.co.uk

The way I would do that is to use a Linux / unix machine and one of the cheap ebay usb to ide adapters, then use dd to image the whole drive to a file. That should copy block, including the boot block and partition table. Use the reverse process to image the file back to another drive... Chris

5 years, 4 months

OSM Zeus 4 Computer

by g-wright＠att.net

Over the years I have requested help on a Zues 4 I have here but only ran into a dead end street.It would error on boot. Today I booted it up and is came up? for some odd reason..? OSM Computer Corp.? Multi-User System.? 4.01/4.00? 01-19-1983? Muse 04.50 running I still can't find much on The OS. looks a little like MPM? Dir lists what looks like CPM/MPM type files. I do see PIP listed but would like to get a Back UP if possible.? Not sure how log the Drive will Keep working. Any manuals or the like out there on the OS? "muse" Or the computer Here is a Picture of one? http://computersheds.uk/fixed_pages/osm_zeus_4.html Thanks,? Jerry

5 years, 4 months

NEC NEAX IVS2 PBX with NEAXMAIL AD-8 - hard drive clone issues

by keith＠saracom.com

Hi Everyone, Not a classic computer but has a 386 embedded in it for the voice mail. I rescued it from work. We had it rung for 20 years straight. The voice mail (AD-8) is basically a 386 running MS-DOS 6.22. So my concern is the hard drive. It is the original 2.5 inch IDE IBM Travelstar 6 GB drive. It has bee running for 20 years except for a handful of extended power outages. Hence while it is working now, I don't have too much hope for the future. The PBX had its on battery backup and also was always connected to a UPS. I have tried to copy it to an industrial CF card but no luck. I have used Rufus, Active Disk Image, and Macrium Reflect. I don't have my older PCs up and running at the moment, hence I have been trying with a Window's 10 machine and USB adapters to no avail. Since the voicemail card is running headless, I can't see the error messages. There is a serial port but but I have figured out the settings yet. Any suggestions? Do I need to get a DOS machine running to do this? And yes, I really don't need the voicemail working, nor do I need a PBX in my house but why not?

5 years, 4 months

[TUHS] Seeking wisdom from Unix Greybeards

by erc＠pobox.com

You could write something in C using curses/ncurses (which will do the ANSI sequences for you automatically).

5 years, 4 months

[TUHS] Seeking wisdom from Unix Greybeards

by steffen＠sdaoden.eu

Grant Taylor wrote in <9c1595cc-54a1-8af9-0c2d-083cb04dd97c at spamtrap.tnetconsulting.net>: |Hi, | |As I find myself starting yet another project that that wants to use |ANSI control sequences for colorization of text, I find myself -- yet |again -- wondering if there is a better way to generate the output from |the code in a way that respects TERMinal capabilites. | |Is there a better / different control sequence that I can ~> should use |for colorizing / stylizing output that will account for the differences |in capabilities between a VT100 and XTerm? | |Can I wrap things that I output so that I don't send color control |sequences to a TERMinal that doesn't support them? color_init() { [ -n "${NOCOLOUR}" ] && return [ -n "${MAILX_CC_TEST_NO_COLOUR}" ] && return # We do not want color for "make test > .LOG"! if (command -v stty && command -v tput) >/dev/null 2>&1 && (<&1 >/dev/null stty -a) 2>/dev/null; then { sgr0=`tput sgr0`; } 2>/dev/null [ $? -eq 0 ] || return { saf1=`tput setaf 1`; } 2>/dev/null [ $? -eq 0 ] || return { saf2=`tput setaf 2`; } 2>/dev/null [ $? -eq 0 ] || return { saf3=`tput setaf 3`; } 2>/dev/null [ $? -eq 0 ] || return { b=`tput bold`; } 2>/dev/null [ $? -eq 0 ] || return COLOR_ERR_ON=${saf1}${b} COLOR_ERR_OFF=${sgr0} COLOR_WARN_ON=${saf3}${b} COLOR_WARN_OFF=${sgr0} COLOR_OK_ON=${saf2} COLOR_OK_OFF=${sgr0} unset saf1 saf2 saf3 b fi } Is what i use for a make system. --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt)

5 years, 4 months

[TUHS] Seeking wisdom from Unix Greybeards

by lm＠mcvoy.com

man 1 tput is what I use. On Wed, Nov 25, 2020 at 10:14:55AM -0700, Grant Taylor via TUHS wrote: > Hi, > > As I find myself starting yet another project that that wants to use ANSI > control sequences for colorization of text, I find myself -- yet again -- > wondering if there is a better way to generate the output from the code in a > way that respects TERMinal capabilites. > > Is there a better / different control sequence that I can ~> should use for > colorizing / stylizing output that will account for the differences in > capabilities between a VT100 and XTerm? > > Can I wrap things that I output so that I don't send color control sequences > to a TERMinal that doesn't support them? > > > > -- > Grant. . . . > unix || die > -- --- Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm

5 years, 5 months

Fortran IV V2.5 for RT-11

by mattislind＠gmail.com

I found a three RX01 disk set for a Fortran IV system V2.5 for RT-11. I dumped the contents and it is available here: https://drive.google.com/file/d/12VXh4wk3Zo_fSGRtLPHwrJg6ui3pwVd-/view?usp=…

5 years, 5 months

DEC PDP-8/E wanted

by ccth6600＠gmail.com

I know it is the year 2020 but nevertheless what are my chances of finding a complete and repairable DEC PDP-8/E or as a second choice a PDP-8/I ? Is there any hope or should I be just content with my SIMH based PiDP-8/I? Thanks Tom Hunter

5 years, 5 months

LCD screen repair

by trash80＠internode.on.net

Hi folks - be grateful for a little advice please. Some time I rescued an Apple Power Mac G4 (it's a beautiful machine, not that I'm a big Mac person, and I can't believe someone was going to toss it) - powers up OK but looks like it just needs a new battery as its not holding date and time. Anyway the other day I was cleaning up in my collection facility and dropped the monitor - I wasn't quick enough to save it from hitting a metal object just under the bench and as chance would have it of course this happened screen side. Its put a gouge in the surface of the screen - link to photos below. http://koken.advancedimaging.com.au/index.php?/albums/apple-screen/ Now I believe it is possibly repairable but the are many kits and methods out the all claiming some success. I figure I'm only going to get one shot at this so would appreciate any advice from anyone who may have effected such a repair before. Thank you. Kevin Parker <https://t.sidekickopen76.com/s1t/o/5/f18dQhb0S7n28cFFdQW752kH81jkhdLW1_k-L- 1qZM43W3s0v_y2M0f8BF4c2NfHml5Hf6Bq4h603?si=8000000004908274&pi=2139d449-dcd9 -4daf-91a4-c2defc817fd5>

5 years, 5 months

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