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

by COURYHOUSE＠aol.com

ok! I knew they came 'toggless' but never saw one... mine had / has togs! I still have a m or an f up in my study ( I forget which...) been up on a shelf for 20 years probably should give it to the SMECC to go with the other 8's I gave them. I am going to make a point of getting the 8s out of oe of the other buildings and brig it to the display area ( and get the s/n to add to a s/n register or we can start a s/n register. Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 6/8/2015 2:54:34 P.M. US Mountain Standard Time, nf6x at nf6x.net writes: > On Jun 8, 2015, at 14:52 , Mark J. Blair <nf6x at nf6x.net> wrote: > > >> On Jun 8, 2015, at 14:00 , COURYHOUSE at aol.com wrote: >> >> I have seen M with all toggles... > > I've seen one in my machine room, right next to my VAX. :) Oh, and I should have mentioned that it was removed from some sort of CNC stitching machine, which is the sort of application where a no-toggle-switches panel seems more appropriate to me. -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

11 years, 2 months

2
1
0 0

Front Panel Update

by COURYHOUSE＠aol.com

I will have to dig out he small computer handbook from the Dec section at smecc library and study up on it again! the brain cells are foggy! another nice go with to display with 8s is the DEC logic trainer We somehow ended up with a few of these... one goes next to a 8 the other in toys robots and trainers display and one for offsite which leaves one extra for trade! In a message dated 6/8/2015 2:20:24 P.M. US Mountain Standard Time, bqt at update.uu.se writes: Not so much "serial bus" as just "serial". Everything is serial in the machine, as far as I understand. Not sure how much of a bus it got. Johnny On 2015-06-08 22:59, COURYHOUSE at aol.com wrote: > yea... poor 8 s was 20 microsecond cycle time.... > the S stood for serial buss as I remember it. > Ed# _www.smecc.org_ (http://www.smecc.org) > > > In a message dated 6/8/2015 1:09:31 P.M. US Mountain Standard Time, > pontus at Update.UU.SE writes: > > Quite rare the PDP-8 faq says 1024 made. And given how slow it > was, I suppose people didn't hold on to it. > > /P > > On Mon, Jun 08, 2015 at 12:26:07PM -0700, couryhouse wrote: >> >> >> 8s is rare?? We have one. Is there a an registry? Ed# smecc.org >> >> >> Sent from my Verizon Wireless 4G LTE smartphone >> >> -------- Original message -------- >> From: ben <bfranchuk at jetnet.ab.ca> >> Date: 06/08/2015 12:05 PM (GMT-07:00) >> To: cctalk at classiccmp.org >> Subject: Re: Front Panel Update >> >> On 6/8/2015 12:28 PM, Rod Smallwood wrote: >>> Theres an 8/f which replaced the 8/e and has a similar front panel with >>> extra markings >>> The 8/m - OEM no front panel >>> The 8/I has different front panel >>> The 8/A is a totally different box altogether >>> >>> The 8/e was the big seller with thousands shipped >>> >> The 8/s was a small seller with 10's of computers shipped. >> I got to play with both. >> Ben. >> >> -- 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

11 years, 2 months

1
0
0 0

Front Panel Update

by COURYHOUSE＠aol.com

I have seen M with all toggles... In a message dated 6/8/2015 12:16:57 P.M. US Mountain Standard Time, kylevowen at gmail.com writes: On Jun 8, 2015 2:28 PM, "Rod Smallwood" <rodsmallwood52 at btinternet.com> wrote: > > Theres an 8/f which replaced the 8/e and has a similar front panel with extra markings > The 8/m - OEM no front panel > The 8/I has different front panel > The 8/A is a totally different box altogether > > The 8/e was the big seller with thousands shipped > > The 8/M came both with or without a front panel. I've got both, with the front panel-less version connected (on occasion) to the front panel version as an expansion box. 8/F is identical except for color. There was a memory expansion box for the 8/L that is reminiscent of the front panel-less 8/M, though it has four field switches on the front and no key switch (the 8/M just had a key switch and a SW switch). Kyle

11 years, 2 months

2
2
0 0

Front Panel Update

by COURYHOUSE＠aol.com

yea... poor 8 s was 20 microsecond cycle time.... the S stood for serial buss as I remember it. Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 6/8/2015 1:09:31 P.M. US Mountain Standard Time, pontus at Update.UU.SE writes: Quite rare the PDP-8 faq says 1024 made. And given how slow it was, I suppose people didn't hold on to it. /P On Mon, Jun 08, 2015 at 12:26:07PM -0700, couryhouse wrote: > > > 8s is rare?? We have one. Is there a an registry? Ed# smecc.org > > > Sent from my Verizon Wireless 4G LTE smartphone > > -------- Original message -------- > From: ben <bfranchuk at jetnet.ab.ca> > Date: 06/08/2015 12:05 PM (GMT-07:00) > To: cctalk at classiccmp.org > Subject: Re: Front Panel Update > > On 6/8/2015 12:28 PM, Rod Smallwood wrote: > > Theres an 8/f which replaced the 8/e and has a similar front panel with > > extra markings > > The 8/m - OEM no front panel > > The 8/I has different front panel > > The 8/A is a totally different box altogether > > > > The 8/e was the big seller with thousands shipped > > > The 8/s was a small seller with 10's of computers shipped. > I got to play with both. > Ben. > >

11 years, 2 months

2
1
0 0

Amstrad CPC 464

by terry＠webweavers.co.nz

For any on the list that might be interested... The colourful Amstrad CPC 464. The latest in my stash/hoard/collection to get the YouTube treatment. http://youtu.be/rOuPuE194fo Terry (Tez)

11 years, 2 months

2
2
0 0

DEC cartridge ID & ARTIFACS 440

by hilpert＠cs.ubc.ca

Does anyone recognise these DEC cartridges?: http://www3.telus.net/~bhilpert/tmp/deccartridge.jpg Any details or knowledge of what systems they may have been used with? They're definitely digital, note the logo on the nearer one on the right. I can't recall ever having seen them. They're associated in this instance with 80s-era biomed analysis. Also, anyone know what processor may have been used in a Becton Dickinson ARTIFACS 440 cell-sorting (FACS) rack? We're speculating there may be an embedded LSI-11. Rob and I are assessing some surplus/scrap equipment for rescue but haven't been on site yet.

11 years, 2 months

16
36
1 0

PDP-8/e front panels.

by jnc＠mercury.lcs.mit.edu

> From: Rod Smallwood > I have recently produced a number of high quality custom PDP8/e front > panels. They are full size reproductions of the original. The > production methods are exactly as used in circa 1971. First, my sincere congratulations! This is a real contribution, and I doubt it was trivial to accomplish. > I'll also instigate another batch of ten. .. If I get orders for more > than ten then I'll bump up the second batch size accordingly. These sound so cool I'm tempted to buy one, even though I don't even own a PDP-8! :-) > If there is a demand I'll do other 8's or 11's front panels that use > the same plexiglas and silk screen technique. Someone mentioned -12's and -15's? I don't (yet) need any -11 ones, although at some point, I might need an 11/20 one (I have a line on an 11/20 that spent a lot of time outside, so its front panel is sadly very faded). The thing we really need to find now is a source for the special switches that DEC used in the front panels of the machines of this generation. Electrically, they are just standard SPDT switches (usually two-position, although for some - e.g. Deposit/Start - they are momentary-contact spring-loaded); the real issue is the mechanical fastening, which uses a special front plate (albeit on a standard micro-switch body). I have a number of different ones in my machines, from various manufacturers, but I have had no luck tracking down new ones through the part numbers on them (they seem to be DEC part numbers, or adaptions thereof). I have asked a number of people, but nobody seems to have spares/extras. Anyone know of a source? Noel

11 years, 2 months

5
5
0 0

Need Dos bootable 5 1/4" floppy with binary or hex editor

by jws＠jwsss.com

I just got a Compaq Portable 3 (286). I need to edit the contents of what will be the C drive when dos boots, though it probably doesn't have a file system on it. Anyway i'll need to boot up from a floppy because it has a pick r83 system on the C drive. Not sure what the system is, so fdisk and some simple tools like that would be nice too. Anyway any help would be appreciated. I'm searching for someone local with 5 1/4" floppies and blanks I can use, but if one has a disk i can get from someone I'd be glad to send compensation. For Pick folks (Mr. F15) I don't know the sysprog password, and need to null it out. I may pull the drive from another system I have that I do know the passwords for, but this new system I just got is working, and I'd like to log in and see what this system has and back it up. Pleasantly surprised it has an AST 6pack in the expansion (included) in the kit. thanks Jim

11 years, 2 months

4
4
0 0

Hercules Graphic Station (HG1024) drivers or utility disks?

by cctalk＠fahimi.net

Hello All, My googlefu has failed me in trying to locate actual drivers for download for this card. This was a TIGA (34010) based card w/ built in VGA (so no pass through) with 1MB of VRAM and 2MB of DRAM. I believe there were DOS utilities, Windows 3.x drivers, and SW specific drivers (e.g. AutoCAD). OS/2 or NT drivers would be fantastic but I doubt they are out there. TIA! -Ali

11 years, 2 months

2
4
0 0

Improved MSV11-P FMPS

by jnc＠mercury.lcs.mit.edu

So I have a busted MSV11-P, and I needed the FMPS to work on it. There is one online, but on my computers, it was extremely faint, and very hard (almost impossible) to read. So I have worked on it some, and I have a new version here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/MP01239_MSV11-P.pdf which I feel is much more legigible, and is also a lot smaller (3.5MB instead of 36MB). The default page size is quite small (I have no idea why, I didn't do the re-conversion to PDF, I don't have Acrobat), but if you blow it up to about 300%, it still has good resolution at that point, and it's quite readable - all the signal names, pin numbers, package numbers, etc are quite legible. It doesn't have as much resolution hidden away as the original, but for most purposes, it seems quite acceptable (in fact, more so in some ways, given the increased legibility). I was interested in producing something readable, and easier to manage, and I think this new version succeeds at both. For those who are interested in the details of what I did (because I've seen other FMPS scans with this issue, and it might help someone down the road), after first saving all the pages as individual images (like I said, I don't have Acrobat, so whatever I did had to be done with something else - and I'm not sure Acrobat can do what needed to be done to make them legible, anyway), I started out by trying to simply increase the contrast. That didn't do anything (at least, with my image tool). Looking at the page images under magnification, I discovered why: the areas of ink (lines, letters etc) were actually (in the scanned image) a stipple of white and black pixels, which together produced the (un-readable) light gray printing of the original. So the contrast enhancement knob didn't do anything - each individual pixel was already quite light, or dark. So I used something called an averaging tool (which takes small groups of pixels, and averages them together), with a small averaging box size (I used 2x2), which converted the ink areas to a uniform grey; I could then use contrast enhancement to bring the printing up. I then reduced most pages to 40% of the original size, since the originals were scanned at 600 dpi, in 8-bit/pixel grayscale, and were pretty huge. (I didn't go that far on a few pages - the PCB images - which could use the higher resolution. Also, if you want the full resolution, the original scan is of course still available.) In addition to making the images smaller, this actually increased the crispness of the printing, since the reduction sampling process got rid of a lot of the jaggedness that the previous steps had left. I finally converted the resulting images from 8-bit/pixel grayscale to 1-bit/pixel black-and-white; on inspection of the two side-by-side, this lost a tiny bit of definition, but I felt that the reduction in size was worth it, plus to which my image tool has compression for 1-bit/pixel B+W TIFFs, but not for 8-bit/pixel grayscale TIFFs, so I won doubly on the size. Noel

11 years, 2 months

1
0
0 0

DHCP on VMS/VAX

by isking＠uw.edu

Hi folks, ISTR that DHCP was introduced in TCPIP-5.1, which was included on the 7.3 hobbyist CD. But I have a 7.2 CD?. I've installed VMS on SIMH on a G4 iBook (because I can), but then I remembered (yet again) that 7.2 doesn't have DHCP, which is a pain with a laptop on WiFi. So I'm hoping to find either (a) the kit to install TCPIP-5.1 or (b) a 7.3 ISO image on a big enough pipe for FTP. :-) Can anyone help? Oh, and if you're looking for 7.2 (VAX) I have that?. Thanks! -- Ian -- Ian S. King, MSIS, MSCS, Ph.D. Candidate The Information School <http://ischool.uw.edu> Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org> Value Sensitive Design Research Lab <http://vsdesign.org> University of Washington There is an old Vulcan saying: "Only Nixon could go to China."

11 years, 2 months

3
4
0 0

EK-LESIB-TM KLESI-B Adapter Technical Manual

by bob＠jfcl.com

Does anyone have a copy of this document? It's not on Manx and I don't think it's on bitsavers, so it's a long shot but I have to ask. If someone has a printed copy and is willing to loan it or sell it, I'll be happy to scan it and submit it to the archives. Thanks, Bob

11 years, 2 months

1
0
0 0

DEC Runoff to any modern format conversion - MORE INFO

by johnwallace4＠yahoo.co.uk

[massive snippages for brevity] Apologies if this is a daft question badly presented: has anybody mentioned, or better still looked at, DSRPLUS for this picture yet? I did have a quick look but may have missed it. It is, as the name suggests, intended as a bigger better version of DEC/DIGITAL Standard Runoff. Some variants of DSRPLUS are available through VMS freeware (some, e.g. freeware V6 and V7, appear to be available online and working). DSRPLUS might even already be available on one of the general-access VMS systems, for anyone who can't install it locally. It gets better too: a web search for "dsrplus documentation" (ie where is the DSRPLUS manual) doesn't quickly find a DSRPLUS manual but does quickly find a Bitsavers copy of the HSC50 User Guide, whose frontmatter says "This document was generated using DSRPLUS." Could be coincidence, but for someone looking for MSCP specs... Apologies if I'm in the wrong tree. Have a lot of fun.

11 years, 2 months

2
1
0 0

Looking for PDF files of The Computer Journal

by computerdoc＠sc.rr.com

Hi Everyone, I am looking for pdf files for the Computer Journal. There is a series of articles on designing microprocessors I'd like to someday read about. Any ideas where they may be located? Kip Koon <mailto:computerdoc at sc.rr.com> computerdoc at sc.rr.com <http://www.cocopedia.com/wiki/index.php/Kip_Koon> http://www.cocopedia.com/wiki/index.php/Kip_Koon

11 years, 2 months

3
2
0 0

PDP-12 Restoration at the RICM

by michael.99.thompson＠gmail.com

W contacted David Tumey about Teletype hammers. He will send us some as a donation. We put some heat-shrink tubing on to stop further damage. Warren repaired and tested the M706 Teletype receiver. We put it back in the PDP-12 and put the borrowed M706 back in the PDP-8/I. The donor brought another M706/M707 pair, so we tested them and then installed them. We have two working serial ports in the PDP-12. Warren is making an Arduino based programmable baud rate generator for this system. We ran more diags. The 8/I Instruction Test #1 & #2, and the random JMP, JMP-JMS, ISZ tests work OK. The LINC Tape-Quickie test and the Memory Address test fail after running OK for a few minutes. We tested all of the G221 Memory Selectors, and they are OK, so the memory address decoding is probably working OK. This may be a case where the processor is sometimes doing the wrong thing when comparing numbers, and the rest of the hardware is actually OK. Debugging this will be the project for next week. The donor dropped off more documentation, spare parts, LINC tapes containing the DIAL operating system, and an RK05 disk pack that likely contains OS/8. We will make image copies of the LINC tapes and the disk pack. -- Michael Thompson

11 years, 2 months

1
0
0 0

DEC Runoff to any modern format conversion - MORE INFO

by t.gardner＠computer.org

Hi Thanks for all the ideas. Apparently there is nothing off the shelf; I have sent copies of one of the two manuals to three of us who indicated they would try something and will be happy to do the same for anyone else. AFAIK, DEC RUNOFF is only similar to other runoffs in that it uses a period "." at the beginning of a line to designate a command. Most . commands span the single line but some have multi-line and/or multi file implications. E.g. Something like .HL 1 Overview of MSCP Subsystem Converts to <h1 style="text-align:left;"> Overview of MSCP Subsystem</h1> Most of the conversions are obvious but some are a bit more complex, in particular the .require command which apparently assembles the chapter files into a book. .referencepoint command which is some form of anchor, perhaps for an index since so far it always seems to follow a HL command so maybe .HL 1 Overview of MSCP Subsystem .referencepoint overvw_mscp_sub Converts to <h1 name="overvw_mscp_sub" ID="overvw_mscp_sub" style="text-align:left; "> Overview of MSCP Subsystem</h1> With the ID being called from a Table Of Contents built to include the full name and page number It looks like a multipass converter would be the way to go. Anyhow this is a bit beyond my current coding skill but if anyone else wants to try a converter I'd like to work with them Tom -----Original Message----- From: Tom Gardner [mailto:t.gardner at computer.org] Sent: Thursday, June 04, 2015 10:47 AM To: cctalk at classiccmp.org Subject: DEC Runoff to any modern format conversion or DEC MSCP protocol specs Hi I have multiple DEC Runoff (.rno extension) files for the manual on DEC's MSCP protocol. I'd like to convert them to a modern format. The manual is dated circa 1992 incorporating ecos thru MSCP23-4 and is revision 2.4 (or later) of MSCP. What appears to be an early version (Apr 1982 rev 1.2) is at <http://www.textfiles.com/bitsavers/pdf/dec/disc/UDA50/AA-L619A-TK_MSCP_basF n> http://www.textfiles.com/bitsavers/pdf/dec/disc/UDA50/AA-L619A-TK_MSCP_basFn s_82.pdf I've searched for a convertor without much luck, there is a VMS Pascal converter at <https://www.ctan.org/tex-archive/support/rnototex> https://www.ctan.org/tex-archive/support/rnototex which converts to LaTex which can then be converted to pdf, but I don't have any DEC equipment. Anyone know of a converter or perhaps other already converted manuals at other revision levels (e.g. rev 1.2 at link above)? If not, anyone running VMS Pascal or OpenVMS v6.1 (or later) willing to try a conversion to LaTex? DECs Runoff is a markup language that sort of looks like an early HTML, so I suppose I could try a grep conversion to HTML, or just strip out the markup. Any other ideas? Tom

11 years, 2 months

6
7
0 0

Troubleshooting a N* Advantage

by snhirsch＠gmail.com

My Advantage decided to stop booting from floppy disks (the only media it is capable of booting). At first it threw random disk errors, then progressed to the point where I get an immediate "Hardware Failure" diagnostic on screen at power up. If I reset and hit 'Enter' it starts the disk drive comes right back with a "?" prompt and LOAD SYSTEM. I've checked the obvious: - Power supply voltages are good - Pulled, cleaned leads and re-seated 52 very tarnished 4116s - Cleaned and reseated all other socketed parts. A lot does seem to be working. Display is fine. I can enter the mini-monitor and poke around. Keyboard is being read properly. I accidentally found an undocumented diagnostic (enter mini-monitor with Ctrl-C and enter 'A'). This displays the disk controller status registers. The only activity is the sector mark pulse, so something is responding to disk data. Any advice from other Advantage owners or those familiar with the beast would be appreciated. Interesting data point: I replaced the 8035 slave processor with a newer 8035 from the parts bin and none of the I/O operations it manages worked at all - no keyboard no disk activity. Is there perhaps something special about the older part? I'm not aware of any major differences in this part through the years, but you never know. --

11 years, 2 months

1
1
0 0

PDP-8/e front panels.

by rodsmallwood52＠btinternet.com

Hi Guys Thanks for all of the enquiries for panels. I have ten in total. One I have here (as in photo) and the other nine are in the drying rack at the silk screeners. My photo does not do them justice. The screening is a lot sharper and clearer. On Monday I'll go and get the rest of them (10mins down the road) and sort out shipping. I'll let one of the nine go to each of the first nine firm orders. Please send your order to me at rodsmallwood52 at btinternet.com. I'll respond with the total inc. shipping. Payment will be by PayPal. and I'll ship on receipt of payment in full. I'll also instigate another batch of ten. The plexiglas suppliers size the panel and do all the cutouts. They then ship direct to the silkscreeners who are (very) local to me. Total time to second batch availability circa 7-10 (business) days. If I get orders for more than ten then I'll bump up the second batch size accordingly. If there is a demand I'll do other 8's or 11's front panels that use the same plexiglas and silk screen technique. R & D (maybe ware) 8/e bezel in cast resin 8/e programmers console PCB ( If I can solve the problem of the Stackpole switches availability.) 8/e Microprocessor PCB addon to run an 8/e simulator with serial i/o to a terminal. Rod Smallwood

11 years, 2 months

3
2
0 0

PDP8/e front panels.

by rodsmallwood52＠btinternet.com

Hi All I have recently produced a number of high quality custom PDP8/e front panels. They are full size reproductions of the original. The production methods are exactly as used in circa 1971. They are not photographs. The front has the two colours plus the white each done with its own silk screen and the back has the intense black with the clear circular areas for the lamps to shine through. The inks were matched and made to order. The acrylic blanks with the cutouts for the keys were also a custom order. I did the artwork, The four screens were made and the printing done by two young ladies with very good graphic arts skills at 'Squegee & Ink Ltd' local to me here in Newbury UK. I have some photos but they do not do justice to the pin sharp lines and intense colours. The panel fits the bezel and the switches on the key + lamps board line up. I have a few to sell and can do more if needed. Due to the custom production they will not be low cost ($95.00 + shipping from UK) If you are interested I'll send you a picture. My photo skills are not that good. Rod Smallwood

11 years, 2 months

6
7
0 0

VMS EXCHANGE format for VAX console media

by nf6x＠nf6x.net

I have a copy of an 11/730 console tape which I have been told is in EXCHANGE format as created by the CONSCOPY utility. Can any of the VMS experts here help this VMS noob learn how to translate that into a raw block-level image of the corresponding TU58 tape, which I might be able to use with a TU58 emulator? I see that the EXCHANGE image is 512 bytes longer than a full TU58 tape. Could it be as simple as chopping off the first or last 512 bytes? I'm not quite at the point yet where I know what a console tape ought to look like in a hex editor, so I can't clearly see whether that might work yet. I'm presently starting to work on getting some version of VMS running on an emulated 11/780 under simh. So with any luck, I may have a functioning VMS environment before too long, even though I haven't managed to boot up my real 11/730 yet. My end goal is to use that console tape image with some TU58 emulator to boot up my real VAX. I have some original console tapes for it, but they no longer seem to be readable. I did get my machine to examine one of them quite a bit before deciding it wasn't suitable, so maybe there is still some recoverable data on those tapes... but none of them seem to be sufficiently error-free to boot my machine. I'm presently working on booting it from a downloaded console tape image, but getting tu58em and my 11/730 to like each other is still an ongoing project. Once I get there, I think that this EXCHANGE format image that I have is the same console tape version as my unreadable real tapes, and newer than the other downloaded image that I'm presently trying to use, so it would be nice to be able to get it into a format that I can use directly. Thanks in advance for any clues! -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

11 years, 2 months

4
5
0 0

pdp8/e /f /m Omnibus legenda available

by simski＠dds.nl

Hello all, As part of my effort to resurrect our lately broken pdp8/f, I've made a nice drawing of the connector lugs of an omnibus card with its signals next to it. Both sides are done together on one page. any comments are welcome link: https://hack42.nl/wiki/Bestand:Omnibus_legenda.pdf -- Met vriendelijke Groet, Simon Claessen drukknop.nl

11 years, 2 months

3
4
0 0

Holy mother of pearl. 25000 for an 026

by jws＠jwsss.com

This seems excessive, to say the least. RARE-VINTAGE-IBM-26-INTERPRETING-CARD-PUNCH-OWN-A-PIECE-OF-HISTORY http://www.ebay.com/itm/161725243156 but it's rare.

11 years, 2 months

10
11
0 0

what happened to the atrificial 8 E panel with the 6100 built to it?

by COURYHOUSE＠aol.com

what happened to the artificial 8 E panel with the 6100 microprocessor board built to it? are these still being made? Thanks Ed# _www.smnecc.org_ (http://www.smnecc.org)

11 years, 2 months

1
0
0 0

DEC Runoff to any modern format conversion or DEC MSCP protocol specs

by t.gardner＠computer.org

Hi I have multiple DEC Runoff (.rno extension) files for the manual on DEC's MSCP protocol. I'd like to convert them to a modern format. The manual is dated circa 1992 incorporating ecos thru MSCP23-4 and is revision 2.4 (or later) of MSCP. What appears to be an early version (Apr 1982 rev 1.2) is at http://www.textfiles.com/bitsavers/pdf/dec/disc/UDA50/AA-L619A-TK_MSCP_basFn s_82.pdf I've searched for a convertor without much luck, there is a VMS Pascal converter at https://www.ctan.org/tex-archive/support/rnototex which converts to LaTex which can then be converted to pdf, but I don't have any DEC equipment. Anyone know of a converter or perhaps other already converted manuals at other revision levels (e.g. rev 1.2 at link above)? If not, anyone running VMS Pascal or OpenVMS v6.1 (or later) willing to try a conversion to LaTex? DECs Runoff is a markup language that sort of looks like an early HTML, so I suppose I could try a grep conversion to HTML, or just strip out the markup. Any other ideas? Tom

11 years, 2 months

10
14
0 0

Distribution panels (cab kits) for DZV11/DZQ11

by jnc＠mercury.lcs.mit.edu

> From: Glen Slick > There is this distribution panel on eBay at the moment, but I think > this might be the H3173-A version for the M3104 DHV11 / M3107 DHQ11 Yes, it is - I got several of those from him, but he only had one of the DZV11/DZQ11 ones (which are, simply by looking at them, indistinquishable >from the DHV11/DHQ11 ones - one has to look at the part numbers to distinguish them, they are so similar - well, to be hyper-precise, there are two variants of the DHV11/DHQ11 one, one with the Berg on the side, and one with the one of the top, and it's the latter which is visually almost identical). > The 70-19964-00 distribution panels I have for the M7957 DZV11 / M3106 > DZQ11 have arrows screened on to the front of the panels between the > DB25 connectors. (I'm not sure what the arrow is supposed to indicate). Which way around to install them, or which port is #0, would be my guess. I've seen a similar arrow on the dist panel for the DLV11-J (which also comes in two distinct variants). Noel

11 years, 2 months

1
0
0 0

PDP-11/44 M7098 ECO #7?

by mattislind＠gmail.com

I have been given a PDP-11/44 and I was running through all sorts of diagnostics to check out the machine. It seems to work fine except for the trap test KKABD1 which fails at 23252. It passes an earlier version of the same trap test. The listing (thank you J?rg) is at: ftp://u58104846-pub:open4you@ ftp.j-hoppe.de/fichescanner/bw/gh/AH-F623D-MC__KD11-Z__11-44_TRAPS__CKKABD0__(C)79-82.pdf It tells me that my M7098 board is missing ECO #7. Anyone knows of a list of ECOs for the PDP-11/44. I think I have searched everywhere I can think of but haven't found it.

11 years, 2 months

1
0
0 0

PDP-12 Restoration at the RICM

by michael.99.thompson＠gmail.com

> > Date: Mon, 1 Jun 2015 09:33:26 +0100 > From: "Robert Jarratt" <robert.jarratt at ntlworld.com> > Subject: RE: PDP-12 Restoration at the RICM > > Yes, the new rubber hammers are available from David Tumey. I think he > wants > about $7 for 10 of them. I have a supply of them here in the UK for anyone > that needs any. > > Regards > > Rob > Thanks Rob. I sent him an email and asked about the hammer, and a source for paper and ribbons. The platen is hard as a rock, so we will need to do something about that too. -- Michael Thompson

11 years, 2 months

4
4
0 0

Two more P112 kits left

by dave＠661.org

I have two more P112 kits left. One is a board with parts. The other adds an old SCSI enclosure. Once these are gone, it'll be a long time before I offer complete kits again. The price is $190 for the kit alone and $210 for the kit with chassis (shipped in the US). The chassis is identical to the blue sparkly one seen at https://www.flickr.com/photos/32548582 at N02/sets/72157649945208099 except it's beige. -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

11 years, 2 months

1
0
0 0

Epson QX10 Plus in Holland MI- With original boxes

by slandon110＠gmail.com

Found this on craigslist tonight.. Someone near by go get it http://holland.craigslist.org/sys/5047257113.html

11 years, 2 months

1
0
0 0

Distribution panels (cab kits) for DZV11/DZQ11

by jnc＠mercury.lcs.mit.edu

Hi, all, I'm looking for distribution panels (cab kits) for DZV11s/DZQ11s - or that wierd cable with the DB25 connectors on one end which substitutes for a cab kit, the BC11U - for the DZV11/DZQ11. (The part number for the distribution panel is 70-19964-00.) (I'm pretty sure the cabkit, which is technically for the DZQ11, will also work with the DZV11, since they are documented as both using the BC11U cable.) I don't have to have the cable (which is a BC05L-xx, which I'm pretty sure is the vanilla 40-pin cable), since I'm set up to make them, although if the panel comes with one, that's fine, of course. Anyone know of a source for any? I looked online, none on eBay, Google showed one dealer with one, but they wanted like $50 each. Noel

11 years, 2 months

2
1
0 0

8-bit Computer TV Channel Use

by nf6x＠nf6x.net

> On May 21, 2015, at 12:11 , John Foust <jfoust at threedee.com> wrote: > > At 03:03 PM 5/19/2015, Mark J. Blair wrote: >> I've been brainstorming about hypothetical hardware for converting video from vintage 8-bit computers to drive modern monitors well, with support for all of the dirty tricks like color aliasing that many of them used. > > Hasn't this list discussed existing devices that work for this task? > They're aimed at the game console market. I don't recall a previous discussion of that, but my lack of recollection certainly doesn't mean that it never happened. It's been mentioned recently on various retrocomputing podcasts that many (most? all?) of the existing solutions out there work poorly with some vintage computers, particularly the Apple II. It was mentioned in passing on Open Apple #43 in the discussion of LCD panels suitable for an Apple II GS laptop conversion, and specifically discussed on RCR #100 in the Host's Topic segment as something lacking in the market (links below). Maybe there are good solutions that just aren't well-known in those circles? If so, I'd like to hear about them. I'm also very interested in learning about specific instances of "computer X worked poorly with adapter/display Y, and it failed in this particular way". While I recall hearing multiple mentions of this sort of trouble in general, I'd like to hear of specific examples of how specific combinations failed, i.e. "monitor Y couldn't sync to video from computer X", "adapter Y generates monochrome output instead of deliberately aliased colors from computer X", etc. http://www.open-apple.net/2015/01/22/open-apple-43-january-2015-happy-new-y… http://rcrpodcast.com/episodes/2015/5/10/rcr-episode-100.html -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

11 years, 2 months

14
52
0 0

Datasaab D12

by pontus＠Update.UU.SE

Hi Yesterday I picked up a Datasaab D12. Which I didn't know existed until then. Pictures here: http://imgur.com/a/vPTZw It's a small desktop computer intended for small business accounting and invoicing. It's built arround an intel 4004 and has room for expansion cards for memory and "customer roms". The service guide mentions a "two level" environment with a "basic" level and a "customer program" level. I'm hoping it means there is a Basic interpreter but I'm not convinced. The manual also mentions a "D12 assembler" as the develoment environment. It's apparently a subsystem that comes in a nice attache case: http://imgur.com/QQUrcGh It's actually made by Facit and may go under that name. Does anyone know more or have manuals? Regards, Pontus.

11 years, 2 months

2
2
0 0

Panaplex display history

by jules.richardson99＠gmail.com

JOOI, does anyone know when Panaplex 7-segment displays started going the way of the dodo, to be replaced with LED displays (and, on the back of that, what were the advantages of a Panaplex-type display over an LED one?) I just saved a few boards from a dumpster with such displays on (they're actually Beckman ones, not Burroughs), but I was a little surprised to see IC dates into 1981; I thought by then things had moved over to LED. I'm almost certain that they're from old gas pumps - maybe the displays are just more readable in bright sunlight than LED? (there's a sticker on one of the PSU boards with a 'shipping date' in 1999) cheers Jules

11 years, 2 months

9
26
0 0

PDP-12 Restoration at the RICM

by michael.99.thompson＠gmail.com

We spent Friday and Saturday debugging the PDP-12. We replaced a bad SN7400 driver chip and three bad bulbs in the front panel. We can now trust what we see on the front panel for debugging information. We tried some of the PDP-8 and LINC instructions and noticed that some of the bits in the Instruction Register were stuck on. We swapped the two M216 (six flip-flops in three SN7474 ICs) flip-chips that make up the IR and the stuck bits moved. We replaced the broken M216 with a spare, and now all of the IR bits work correctly. With a working IR, we found that lots of the PDP-8 instructions, and many of the LINC instructions now work. We can turn the relays on and off and make noises through the speaker. During other DEC restorations we have replaced LOTs of SN7474 ICs. We pulled all of the M216 flip-chips and ran them in Warren's tester. We found and replaced another bad M216, the one in slot E8 that controls the core memory states. Now core memory works! We went through the troubleshooting guide in Maintenance Volume-II. It has a procedure for doing a quick test of core memory that revealed a problem in the upper addresses. From looking at the prints it had to be one of two G221 flip-chips. We swapped in a spare and found that the one in slot C09 was bad. Now all of the first 4k of memory works. There is a problem with any PDP-8 instruction that has an address in the lower 9 bits. All 12 bits of the instruction are used, so it makes a mess. Debugging that issue will be the next project. -- Michael Thompson

11 years, 2 months

9
10
0 0

Apple I gets tossed out for recycling

by tom_a_sparks＠yahoo.com.au

Have people seen the news a Apple I gets tossed out for recycling the recycler is going to give her $100,000 half of the $200,000 <http://www.engadget.com/2015/05/31/apple-i-tossed-out-for-recycling/> <http://www.theguardian.com/technology/2015/may/31/apple-1-steve-wozniak-rec…> -- tom sparks x86? We ain't got no x86. We don't need no stinking x86!

11 years, 2 months

1
0
0 0

PDP 11/44 for sale

by rdooley＠shaw.ca

I have been on this list for a long time as a reader and wanted to give the list a heads up on this system before doing anything else in case somebody wants it and can pick it up. -- Cabinet 1: Quickware Engineering QED-95 CPU replacement 2- TU-58 tape drives Cabinet 2: BA11-KW RX02 floppies Cabinet 3: 2- RL02 disk drives 1-MDI 76-contains 1 Maxtor XT8760EM 760 Meg HD Cabinet 4: 2-RL02 disk drives 1-MDI 276-contains two Maxtor XT8760EM 760 Meg HDs I am asking US$3000.00 for the four cabinets. I can't guarantee anything but it was turned off working fine. The buyer would have the option of buying up to 18 RL02K-DC data carts for US$25 each Shipping is probably not an option they are about 300lbs + each I am located in Kelowna BC Canada about 3hrs north of Spokane Washington.. Preference would have to go to someone that could come and get it. Pictures are here http://photoshare.shaw.ca/view/32499942349-1432868285-94725/0 Rod Rdooley at shaw dot ca

11 years, 2 months

7
7
0 0

Franklin Ace 1000

by sales＠elecplus.com

Looks kind of like Apple II, but bigger. Hasd 1 external 5.25" diskette drive. Missing one keycap (the letter F). Make an offer, I can ship it. Totally untested J Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls

11 years, 2 months

2
1
0 0

Apple-1 doh!

by chrise＠pobox.com

http://in.reuters.com/article/2015/05/31/usa-california-computer-idINL1N0YM… May 31 (Reuters) - A $100,000 check is waiting for a mystery woman who donated a rare Apple 1 computer to a Silicon Valley recycling firm. CleanBayArea in Milpitas, California, is trying to track down a woman in her 60s who dropped off some electronic goods in April, when she was cleaning out the garage after her husband died. In one of the boxes, buried under worthless keyboards, personal computer pieces and wires, was a 1976 Apple 1, a groundbreaking home computer. Apple co-founder Steve Wozniak designed and hand-built the computers and sold them for $666.66 each. Only a few dozen are known still to exist. [...] -- Chris Elmquist

11 years, 2 months

1
0
0 0

Looking for a Northstar S-100 Double Density Controller

by spereira1952＠comcast.net

I'm looking for a Northstar double density floppy disk controller. The double density controller will be marked as MDS-ADx. I have seen pictures of this board marked as MDS-AD and MDS-AD3, but I'm not certain how many different versions there may be out there. Obviously, I would greatly prefer to know that the board is operational prior to shipping. Please let me know if you might have a spare or unused board that you would part with for a reasonable price plus shipping. Thanks! -- Stephen M. Pereira Bedford, NH 03110 KB1SXE

11 years, 2 months

1
0
0 0

UA11 "Unibus Analyzer" Wanted

by pbirkel＠gmail.com

I didn't discover this wonderful project from Guy until *after* he had moved. And while he _may_ have a few boards left, they're still buried somewhere in his amazing collection of "materiel" :->. As I need to learn/work my way through various Unibus systems/scenarios ... starting with self-education ... I'd very much like to acquire one of these beasties. Does anyone have a UA11 PCB, kit, or completed board, with which they'd be willing to part? A good home with a friendly family is guaranteed! Many Thanks, paul

11 years, 2 months

1
0
0 0

Intel absolute object file format specification

by spacewar＠gmail.com

Various Intel manual reference an "MCS 80/85 absolute object file formats" manual, order number 9800183B. Does anyone have this? Note that this is a pure binary format, not the well-known "Intel Hex" format.

11 years, 2 months

2
1
0 0

IBM System/34 available in sweden

by pontus＠Update.UU.SE

Hi I was just offered an IBM System/34. It's not my thing and I thought there might be some international interest even. Documentation and software included. Contact me for details. /P

11 years, 2 months

1
0
0 0

Intel DEBUG-86 listing?

by spacewar＠gmail.com

Did Intel ever publish a listing of DEBUG-86, as they did of their Series II monitor for the 8080/8085?

11 years, 2 months

1
0
0 0

Bitcoining on a 1401

by marc.verdiell＠gmail.com

We do have two 1401s, and on a good day, they both work. No working 360s. But even if we could have the two 1401's talk to each other, it would still take about the age of the universe to mine a block. This is about the worst machine for scientific calculation, as it does BCD, character by character arithmetic, in a serial fashion, one BCD digit at a time. Hardware multiplication is an optional add-on feature on these machines (which we have)! So no, you can never mine a real block in time with a 1401, or even a million of them. But that you could implement and run the algorithm is just a testament that the fundamentals of computing haven't changed, doubled with a vivid demonstration of the mind-boggling effects of Moore's Law over one generation. And having old hardware tackle modern tasks is just plain fun. And, lest I forget, a credit to the skill, talent and humor of our vintage programmer extraordinaire Ken, who joined us recently. Marc Message: 13 Date: Thu, 28 May 2015 12:31:57 -0700 From: Brent Hilpert <hilpert at cs.ubc.ca> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Bitcoining on a 1401 Message-ID: <4B9B7085-C29F-4987-893F-FB397DFFC903 at cs.ubc.ca> Content-Type: text/plain; charset=us-ascii On 2015-May-28, at 11:12 AM, Fred Cisin wrote: >>> Is the bitcoin output anywhere close to enough to pay for the costs of >>> running a 1401? >> On Thu, 28 May 2015, emanuel stiebler wrote: >> Probably not. Quoting the web page: >> " ... but so slowly it would take more than the lifetime of the universe to successfully mine a block " >> ;-) > > Excellent! > Does anybody have enough 1401s to run them in parallel to speed up the process?

11 years, 2 months

2
1
0 0

OT: Looking for the Tek 465 of Logic Analysers

by marc.verdiell＠gmail.com

I'd suggest to go for the king of the hill at the time, and get an HP 16xx (163x, 165x, 166x, 167x) for all-in-ones or the 16500 if you like to modularize yourself, although tis latter one is much harder to put together since you have to get the frame, the plug ins, the software, etc... On the 16yx, the higher the y number, the better the machine (i.e faster, better screens, more memory). They are widely available, starting at below $100 for the earlier machines, and up to $300-$400 for the later ones. I'd recommend to have at least one that has a hard disk, so you don't have to find or make an old LIF floppy to boot from. As always the rub is the pods/probes. I had to complete my set separately, but they are also widely available. This is a relatively small amount to pay for what these machines actually are. The later ones have the inverse assembler for the 68000. I got the luxury one, a 1670G with the pattern generator (which I haven't found an excuse to use yet). Here it is at work: http://youtu.be/X_6limxLZ_k Sent from my iPad > On May 29, 2015, at 12:00 PM, cctalk-request at classiccmp.org wrote: > > Message: 20 > Date: Thu, 28 May 2015 22:53:07 -0400 > From: Ken Seefried <seefriek at gmail.com> > To: cctalk at classiccmp.org > Subject: OT: Looking for the Tek 465 of Logic Analysers > Message-ID: > <CAOrcWjx8hKjDDgcLyvzSbrotk8QmgBSf2KVnzbmSjpQrzzFKwg at mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > Maybe only semi-OT. I'm working on a couple of classiccmp-ish projects > (6303, 6309 and 68030) and I find the trusty old Tek 465 o-scope is no > longer compensating for my lack of design skill (or I'm getting better at > hiding bugs in my designs, depending how you look at it). I'm looking for > a recommendation for a logic analyzer. Considering my very modest design > constraints, I'm thinking: > > - Suitable for 50MHz designs (really more like <16MHz, but you never know) > - 32 channels would be nice, ~128 probably perfect, less...you know...do > what you gotta do... > - No weird technologies in the design (all TTL/CMOS logic) > - I'm willing to spend a few $$ to get decent kit, but need to spend closer > to 465 money than TLA7012 money > - Decent analytics, hopefully more than "here's your traces...good luck" > - Ease of finding complete kit; nothing worse than dropping a dime on what > looks like a good deal only to find you're missing the unobtanium cable, or > the software disk that the vendor will be more than happy to provide you > only under a cripplingly expensive support contract.

11 years, 2 months

2
1
0 0

Bitcoining on a 1401

by commodorejohn＠gmail.com

> The article mentions the CHM has two 1401s functioning, but I guess halving the time won't help much. Au contraire! Running two of them means it would take only more than *half* the lifetime of the universe, which means you still have *less* than half the lifetime of the universe left to enjoy it!

11 years, 2 months

2
1
0 0

Possible large stash of equipment in California estate

by r_a_feldman＠hotmail.com

The following message was posted on the Large Format Photography Forum, to which I subscribe: <quote> A good friend's widow has computer junk. He was a computer tech. A huge room stacked floor to ceiling with racks loaded with obsolete computers & stuff. Any idea what sort of reclycers she could contact which might be interested in offering her some $$ (which she could really use) for it? </quote> The poster of the note lives in the San Joaquin Valley, California, so I am guessing the widow lives nearby. I have urged the poster to get a list together and post it here, but is there anyone who could help them out? If so, send me an email directly to r(underscore)a(underscore)feldman(at)Hotmail.com and I will try to connect you with the poster (I do not have his email yet). Bob Feldman

11 years, 2 months

1
0
0 0

Bitcoining on a 1401

by jws＠jwsss.com

I saw this article over on the Hercules group, and was amused. http://www.righto.com/2015/05/bitcoin-mining-on-55-year-old-ibm-1401.html Thanks Jim

11 years, 2 months

10
11
0 0

The old Monroe 10 calculator

by sales＠elecplus.com

Not sure if this is old enough to count? Warranty expiration date on the back is 5-20-1975 J Comes with cassette tape. No AC adapter to test it. If interested, make offer. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls

11 years, 2 months

1
0
0 0

Looking for the Tek 465 of Logic Analysers

by seefriek＠gmail.com

From: tony duell <ard at p850ug1.demon.co.uk> >> - No weird technologies in the design (all TTL/CMOS logic) > >That is going to be a problem. AFAIK no 'serious' logic analyser was all >TTL or (high speed) CMOS. If you are looking for one that is mostly/all >standard logic, I think you have to consider ECL here. I meant I'm not using any weird technology in *my* designs. Sorry if that wasn't clear. I'm not particularly concerned about what the LA is built from. KJ

11 years, 2 months

5
5
0 0

Dec pdp 11/44 for sale

by rdooley＠shaw.ca

I have been on this list for a long time as a reader and wanted to give the list a heads up on this system before doing anything else in case somebody wants it and can pick it up. -- Cabinet 1: Quickware Engineering QED-95 CPU replacement 2- TU-58 tape drives Cabinet 2: BA11-KW RX02 floppies Cabinet 3: 2- RL02 disk drives 1-MDI 76-contains 1 Maxtor XT8760EM 760 Meg HD Cabinet 4: 2-RL02 disk drives 1-MDI 276-contains two Maxtor XT8760EM 760 Meg HDs I am asking US$3000.00 for the four cabinets. I can't guarantee anything but it was turned off working fine. The buyer would have the option of buying up to 18 RL02K-DC data carts for US$25 each Shipping is probably not an option they are about 300lbs + each I am located in Kelowna BC Canada about 3hrs north of Spokane Washington.. Preference would have to go to someone that could come and get it. Pictures are here http://photoshare.shaw.ca/view/32499942349-1432868285-94725/0 Rod Rdooley at shaw dot ca

11 years, 2 months

1
0
0 0

Wanted: stand for NeXT monitor

by COURYHOUSE＠aol.com

we have one of the NeXT cube looking computer, a monitor and a NeXT laser printer. looking for an archive stash of advertising lit. and graphics we can use to build a display around this hardware. Suggestions? Thanks Ed Sharpe _www.smecc.org_ (http://www.smecc.org) In a message dated 5/29/2015 8:23:20 A.M. US Mountain Standard Time, aperry at snowmoose.com writes: I am running OPENSTEP on an Axil 320 (SPARCstation 20 clone) with 416M of memory and a 60MHz SuperSPARC processor (sadly OPENSTEP (at least the version that I have) only supports one of the two processors in the system). The system runs OPENSTEP very well. alan On 5/28/15 8:20 AM, Sean Caron wrote: > It was always my experience ... I think NeXTstep had a reputation of being > a little balky on the proprietary NeXT hardware. I am fortunate to have a > decent swath of their product line ... an original '030 Cube, a Color slab > and a Turbo Color slab and even on the Turbo slab with 32 megs RAM and a > 7200 RPM drive, NS 3.3 gets laggy. > > Slow as it is, the entire package has certainly got some class and it's > something to revel at, of course. > > Can you even run Openstep on the NeXT proprietary hardware? The performance > must be awful... I halfway thought NS 3.3 was the last revision they would > run ... 3.3 should be pretty common in the wild because NeXT was giving it > away for free with a valid NeXT serial number about 15 years ago as a Y2K > mitigation strategy :O I run 3.3 on all my NeXTs, even the '030 Cube. > > If you really want to see NeXTstep 3.3 fly, people say it's great on the HP > 9000/712 :O > > Best, > > Sean > > > On Wed, May 27, 2015 at 1:54 AM, Brian Archer <archer174 at gmail.com> wrote: > >> I think you'll find the best upgrade for it besides the RAM is a faster >> hard drive. Also I wouldn't go higher than nextstep 3.3. Blackhole ( >> http://www.blackholeinc.com) is your best bet for the stand. If this is >> the >> one from eBay, would you mind sharing more details/pics of that next logo >> motherboard box? I've never seen one before. >> >> Thanks, >> Brian Archer >> >> On Tue, May 26, 2015 at 12:42 AM, Steven Stengel <tosteve at yahoo.com> >> wrote: >> >>> Just acquired a NeXT 68040 cube computer. It's way cool, but the >>> responsiveness is unimpressive - I'd call it pokey. >>> >>> All 16 RAM slots are full for 16MB, but sixteen 4MB RAM sticks may help >>> the speed. >>> >>> It has an internal HD, as well as the magneto-optical drive. >>> >>> One things it's missing is the monitor stand - does anyone have a spare >>> stand for a NeXT N4000A monochrome monitor? >>> >>> Thanks- >>> Steve. >>> >>> >>> >>> >

11 years, 2 months

1
0
0 0

OT: Looking for the Tek 465 of Logic Analysers

by seefriek＠gmail.com

Maybe only semi-OT. I'm working on a couple of classiccmp-ish projects (6303, 6309 and 68030) and I find the trusty old Tek 465 o-scope is no longer compensating for my lack of design skill (or I'm getting better at hiding bugs in my designs, depending how you look at it). I'm looking for a recommendation for a logic analyzer. Considering my very modest design constraints, I'm thinking: - Suitable for 50MHz designs (really more like <16MHz, but you never know) - 32 channels would be nice, ~128 probably perfect, less...you know...do what you gotta do... - No weird technologies in the design (all TTL/CMOS logic) - I'm willing to spend a few $$ to get decent kit, but need to spend closer to 465 money than TLA7012 money - Decent analytics, hopefully more than "here's your traces...good luck" - Ease of finding complete kit; nothing worse than dropping a dime on what looks like a good deal only to find you're missing the unobtanium cable, or the software disk that the vendor will be more than happy to provide you only under a cripplingly expensive support contract. A brief cruse of ePay didn't turn up much Tek/HP/Agilent older-generation kit that looked like it fit the budget, but I'm not entirely sure I know what I'm looking at. I know there's a general allergy to anything USB around here, and worse Windows-based USB software, but there is tons of USB-based stuff that looked like a possibility for those who are willing to hold their nose. So have the USB logic analyzers achieved Willem levels of usefulness (which one?), or is there a must-have Tek 465 moral equivalent I need to be looking for? KJ

11 years, 2 months

4
3
0 0

Looking for the Tek 465 of Logic Analysers

by jnc＠mercury.lcs.mit.edu

> From: Jon Elson > On 05/28/2015 09:53 PM, Ken Seefried wrote: >> Ease of finding complete kit; nothing worse than dropping a dime on >> what looks like a good deal only to find you're missing the unobtanium >> cable > The Tek 1240 should work. I can second that. I recently bought a flock of them (for spares/parts for the first one I bought), because they were so cheap on eBay - several I got for $25 + shipping. Most of the ones I bought came without probes, etc, but I managed to round up a very complete set of stuff without spending too much money. Tek documentation is incredibly thorough, and easy to obtain; and they are very easy to work on (in terms of accessability, etc). Etc, etc, etc. The speeds/etc you are looking for are within their range. When filled with 4 16-channel data acquisition cards, you get 64 channels. They seem to have quite powerful triggering/etc capabilities, and they are easy to use/control. The only possible issue (for some people) is that the memories aren't large (although you can chain identical DACs together to get slightly longer memories). And I'll echo Tony's comments - ECL is pretty much de rigeur, and as for making your own probes, fuhgeddaboutit; the 1240's probe pods (there are two kinds, TTL-only, and 'pick a voltage') contain giant custom chips. Noel

11 years, 2 months

1
0
0 0

PDP-12 Restoration at the RICM

by michael.99.thompson＠gmail.com

The RICM is restoring a PDP-12. This system was manufactured in December of 1972, so it is very late in the life of the PDP-12. The Priority Interrupt and the Data Multiplexer are hardwired in two extra columns in the processor chassis. These options were in separate chassis in earlier models. It came with an Omnibus expansion chassis that connects to the Posibus from the PDP-12. The LP01, RK05, and PC04 controllers are in the Omnibus chassis. The VR14 and TU56 controllers are in the processor chassis. We got the LP01 too. The donor did a great job of preserving the machine, and has all of the original documentation and software. The processor and RK8-F prints are newer than what I can find on the Web, so I will scan them and send the PDFs to Bitsavers. Yesterday we reformed the caps in the power supply and powered it on for the first time in 24 years. It is going to need some debugging, but it does show some signs of life. The CRT in the VR14 -- Michael Thompson

11 years, 2 months

9
11
0 0

Sorry if I haven't back to you...

by shadoooo＠gmail.com

Hello Paul, good luck for your surgery! I hope there's nothing too bad. As for the "business", I sent you more emails in the last months, unfortunately no answer at all... maybe I went direct to spam? :( Anyway, when you are back good, please let me know something. Thanks Andrea

11 years, 2 months

2
1
0 0

Old HP test equipment power connectors...

by jules.richardson99＠gmail.com

... the style of AC power connector having three 1/8" diameter pins in parallel on 5/16" spacing, with the center pin offset by 1/16" from the outer two, and the rubber molding around the pins having rounded ends. Is there an official/common name for such a connector so that I can try and lay my hands on some more power cables? Fluke used it too (and Moseley, but I believe they were just HP by another name anyway). I've also seen the same pin size/layout on desktop calculators, albeit with more squarish ends to the rubber molding (in fact the single cable in my possession is a calculator one, which I modified to fit the rounded-end profile) (while I'm at it, is there a classiccmp-type list equivalent for old test gear?) cheers Jules

11 years, 2 months

15
31
0 0

Testing floppy drives

by alexandre.tabajara＠gmail.com

Howdy guys, greetings (as always) from Brazil! :o) I'm in a repairing spree! Got 5 (!) CP-500 (Brazilian TRS-80/III clone) to repair. All of them with single/double sided floppy drives, and the whole nine yards. Since it is not pratical to test all these drives on CP500, is there a good software solution I can use on a PC for floppy drive testing? Something that makes repairing easier? Long time I don't get so many drives to repair/refurbish/align Thanks Alexandre --- Enviado do meu Apple IIGS (pq eu sou chique) Meu site: http://www.tabalabs.com.br Meu blog: http://tabajara-labs.blogspot.com

11 years, 2 months

5
5
0 0

Storage Replicator/Volume Replicator Software

by lbickley＠bickleywest.com

Hi All, I'm looking for an old (before 3/2000) copy of Veritas* Systems "Storage Replicator" for Windows or "Volume Replicator" for Solaris. This is for business purposes - so there's a "bounty" available :) Cheers, Lyle * Later sold to Symantec -- Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

11 years, 2 months

2
1
0 0

more old stuff decmates

by COURYHOUSE＠aol.com

Cindy ( or other folk)of you run across another decmate let me know any mores of them special preference to the one in the vt52 case! Ed Sharpe archivist for SMECC _www.smecc.org_ (http://www.smecc.org) In a message dated 5/27/2015 11:32:15 A.M. US Mountain Standard Time, sales at elecplus.com writes:

11 years, 2 months

2
1
0 0

S-100 hardware tech in Phila Area for temp assignment

by billdeg＠buzz1.com

I have some S-100 hardware that I need to work through for retail sale, more than I can do myself given my current schedule. If you're located in the Philadelphia/Baltimore area AND available to work on-site (Landenberg, PA) for a full day or two, contact me off list for details. People with prior experience in electronics, in particular S-100 hardware, preferred. Please advise your availability and any other concerns/questions. Vintagecomputer.net/contact.cfm Bill

11 years, 2 months

1
0
0 0

The small HP stuff

by sales＠elecplus.com

9121 9123 9114 98700 98710 I can tell you the first 3 all used to work, but I do not have keyboards and monitors here to test now. I know nothing about the last 2, except they say MAD BUS on the back. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls

11 years, 2 months

1
0
0 0

more old stuff

by sales＠elecplus.com

DEC Mate II with butterfly floppies A set of 8" floppy drives for a Display Writer A KayPro II and a KayPro II 2 DEC power supplies for mainframes? PN 874-D Several 80386? Compaq luggables Some small OLD HP boxes, will list PN if anyone is interested. I will prob be next week before I can ship these. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls

11 years, 2 months

3
4
0 0

Old HP test equipment power connectors

by marc.verdiell＠gmail.com

Sorry use this link instead. I bought them, they are great and new indeed: http://www.ebay.com/itm/261713737185 >From: Kyle Owen <kylevowen at gmail.com> >Yes, there does appear to be a name for them: the 163 connector. >http://www.cs.ubc.ca/~hilpert/e/powerConn/index.html >Big thanks to our own Brent Hilpert for the great reference! >Kyle

11 years, 2 months

1
0
0 0

Old HP test equipment power connectors...

by marc.verdiell＠gmail.com

I get mine from this vendor on eBay. Very reasonably priced and the one I got were indeed like new; http://www.ebay.com/itm/261713737185?_trksid=p2057872.m2749.l2649&ssPageNam e=STRK%3AMEBIDX%3AIT - Marc >On 05/26/2015 09:27 PM, Kyle Owen wrote: >>Yes, there does appear to be a name for them: the 163 connector. >> >>http://www.cs.ubc.ca/~hilpert/e/powerConn/index.html

11 years, 2 months

1
0
0 0

asking for pickup help

by jwest＠classiccmp.org

Are there any collectors around Larose, Louisiana that might be able to pick up something "relatively smallish" and ship? I'd be happy to compensate/trade. whatever you wish! Best, J

11 years, 2 months

1
0
0 0

Equip available - Flagstaff Eng. external 8" floppy, Xerox 820-II (Wichita, Ks)

by microfilm＠microfilm.kscoxmail.com

A few weeks ago, I posted a list of equipment for sale, and on that list was an external 8" floppy drive built (or at least, sold) by Flagstaff Engineering. I've finally found the interface card, so now the whole shebang is available. Card, cable, and drive. Also, I have two Xerox 820-II CP/M computers, with keyboards. I have one dual external 8" floppy for the 820-II's (not on per). I can ship the Flagstaff drive, but I'm not sure how to go about shipping the 820's. They are available in Wichita, Ks. --Shaun Microfilm Services, Inc. 316-269-2203

11 years, 2 months

1
0
0 0

Sorry if I haven't back to you...

by useddec＠gmail.com

There are several members I was supposed to check on item and I have dropped the ball on a few. I rely greatly on high school students to do a lot of things I can't do myself anymore, and they have had proms and plays the last few weeks and finals this week. I am going in for another surgery next week and will be able to check email late in the week. I'll be pretty much out of commission for the summer, but they'll be able to take care of most shipping. So, if I dropped the ball on anything, please BUG ME ! I'll reply to emails ASAP, but please, no phone calls next week.

11 years, 2 months

2
1
0 0

RDI PowerLite 110 and OpenStep - watchdog-reset

by ian.finder＠gmail.com

Hi folks, So I recently made a very poor trade for an RDI PowerLite 110 under the assumption that it could run NeXTstep or OpenStep, as allegedly RDI supplied the PowerLite with this OS in some configurations. The PowerLite is essentially an SS5 in a chunky, ugly laptop. When I boot the OpenStep and NeXTstep installers however, at the second stage loader I get a "watchdog-reset" message from OBP. Ultimately it's the same issue as discussed here: http://www.nextcomputers.org/forums/viewtopic.php?t=3153&sid=b8cb75adb72457… Any hope in getting this to run? Any ideas out there? Or am I stuck with a fat ugly wannabe SparcBook 3? (I have a few of the 3GX/3TX family which seem like far nicer machines, the only reason I wanted this RDI P.O.S. Is the weitek framebuffer in the SparcBooks isn't supported by OS/NS, but the CG6 in the RDI supposedly is. What a garbage machine RDI produced with this one... Thanks, - Ian

11 years, 2 months

3
2
0 0

Hawk Disk Drive

by bpettitx＠comcast.net

Jim wrote: From: jwsmobile <jws at jwsss.com> Subject: GE disk drives on ebay, one badged Datacraft GE-14-Hawk-Drive-23991-47d266933G3 http://www.ebay.com/itm/261895292646 One of these systems really appears to be a CDC drive, but the other one is badged Datacraft 5208, and doesn't look familiar. Any idea on what it is? Looks like something that would fit a collection of storage devices as a unique item, given that it is 14" removable. This page implies it is a CDC drive, but I've not seen one with the front this one has. http://www.mfarris.com/pack/datacraft.html thanks Jim --------------------------------------------------------------------- Couldn't view the item on eBay - got the message that it was removed. However the page you sent for Datacraft 4441 shows it to be a CDC Hawk drive. The 9425 was first made by NCR. It moved from California to Oklahoma when CPI and MPI were formed. The early version 9425 Cartridge Disk Drive was not a good product. It was re-engineered into the 9427H, code named Hawk. Both were 5MB fixed, 5MB removeable cartridge. Available as a rack mount or stand alone cabinet. There were 4 different types of plug in interfaces available. As near as I can remember, there were around 350 different configurations in production. Most were variations on the color(s) of the skins. But there were also options for sector count, power supplies, front name plate, terminators, cables, etc. Without the original configuration data, it is hard to look at a Hawk and tell what was in it and who was the OEM customer. Customer base was like a who's who of 1970s - minicomputers to early microcomputers. There were even a few S-100 controllers for it There was a 2 disk fixed only version called the Falcon. Really brings back the memories. Billy

11 years, 2 months

2
1
0 0

Tadpole UNIX: TP-IX

by plamenspam＠afterpeople.com

Hello, Does anyone has TP-IX/68k or TP-IX/88k tapes or preinstalled disk? I have a bunch of 68k based TP32, found the documentation and original EPROM. And another board TP-880 which can run even more exotic release TP-IX/88k. Thanks, Plamen

11 years, 2 months

1
0
0 0

Convergent board is claimed

by sales＠elecplus.com

Thanks for the fast responses J I will let the list know if more interesting stuff pops up. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-792-3400 phone sales at elecplus.com AOL IM elcpls

11 years, 2 months

1
0
0 0

IBM 5110 Emulator in JavaScript

by norbert_kehrer＠yahoo.de

I ported Christian Corti's great IBM 5110 emulator to JavaScript, so you can work with an emulated IBM 5110 directly in your (HTML5-capable) web browser. There are still some bugs in it, disk and tape support are still missing, and I could not test it with a non-German keyboard layout. I nonetheless wanted to share the WIP version to give you a first impression. You can try it out and write some small BASIC or APL programs at http://members.aon.at/nkehrer Greetings Norbert

11 years, 2 months

2
1
0 0

Convergent Mighty 2 CPU board

by sales＠elecplus.com

PN 60-00694, date code 8908. Does this interest anyone? About 16 inches by 22 inches, looks to be in good shape. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-792-3400 phone sales at elecplus.com AOL IM elcpls

11 years, 2 months

1
0
0 0

Framebuffer driver for RDI BriteLite IPX?

by michael.99.thompson＠gmail.com

> > Date: Sun, 24 May 2015 19:16:53 -0700 > From: Josh Dersch <derschjo at gmail.com> > Subject: Framebuffer driver for RDI BriteLite IPX? > > Hi all -- > > Sent this query to the Rescue list last week, no bites. Any Sun > fanatics here have any ideas? (Linux/OpenBSD appear to support it, but > I'd rather keep the OS vintage-appropriate. For some reason...) > > Got myself an RDI BriteLite IPX; a "laptop" (a generous description) > based around a stock SPARCStation IPX motherboard with a very large > laptop-style enclosure around it, a 640x480 active-matrix LCD (very > pretty) and a gigantic lead-acid battery. It has a handle, so it's > portable! > > Anyway -- I have it up and running and I have SunOS 4.1.4 installed on a > fresh hard disk (the original drive was long gone when I got it). > Unfortunately, the LCD framebuffer is unrecognized by SunOS; it > identifies itself as cgRDI and it's a custom SBUS board that drives the > 640x480 LCD. > > From what I've been able to dig up this driver was packaged as "RDIlcd" > by RDI but I can't find it, of course. Anyone happen to have this > archived somewhere? Any other ideas? > > Thanks, > Josh > I have IPC, IPX, and LX based BriteLites. I believe that I have the SunOS driver files, I just need to find them.

11 years, 2 months

2
1
0 0

GE disk drives on ebay, one badged Datacraft

by jws＠jwsss.com

GE-14-Hawk-Drive-23991-47d266933G3 http://www.ebay.com/itm/261895292646 One of these systems really appears to be a CDC drive, but the other one is badged Datacraft 5208, and doesn't look familiar. Any idea on what it is? Looks like something that would fit a collection of storage devices as a unique item, given that it is 14" removable. This page implies it is a CDC drive, but I've not seen one with the front this one has. http://www.mfarris.com/pack/datacraft.html thanks Jim

11 years, 2 months

1
0
0 0

Framebuffer driver for RDI BriteLite IPX?

by derschjo＠gmail.com

Hi all -- Sent this query to the Rescue list last week, no bites. Any Sun fanatics here have any ideas? (Linux/OpenBSD appear to support it, but I'd rather keep the OS vintage-appropriate. For some reason...) Got myself an RDI BriteLite IPX; a "laptop" (a generous description) based around a stock SPARCStation IPX motherboard with a very large laptop-style enclosure around it, a 640x480 active-matrix LCD (very pretty) and a gigantic lead-acid battery. It has a handle, so it's portable! Anyway -- I have it up and running and I have SunOS 4.1.4 installed on a fresh hard disk (the original drive was long gone when I got it). Unfortunately, the LCD framebuffer is unrecognized by SunOS; it identifies itself as cgRDI and it's a custom SBUS board that drives the 640x480 LCD. From what I've been able to dig up this driver was packaged as "RDIlcd" by RDI but I can't find it, of course. Anyone happen to have this archived somewhere? Any other ideas? Thanks, Josh

11 years, 2 months

1
0
0 0

Online Access to Running AOS/VS Offered

by steve＠stephenmerrony.co.uk

I've had a lot of help from all over the world getting my Data General MV/2500 up and running, so it's time to give a little back... I am now able to provide on-line access to my operational MV/2500 DC to individuals who make reasonable requests for it. Currently the machine is running AOS/VS 7.70 and has little other than the base software installed, although most of the NADGUG library contents is available. I am not willing to run the MV/2500 24x7, so operational times will be by mutual agreement. I strongly suggest using DasherQ to connect. Access is via telnet provided by a Raspberry Pi acting as a serial-to-network gateway to real serial ports (I don't have TCP/IP on the machine yet). If anyone would like access to the machine please email me stating why you would like access (even if it is just for nostalgia!) and what time zone you are in. Steve -- /Stephen Merrony Email: steve at stephenmerrony.co.uk http://www.stephenmerrony.co.uk/dg/

11 years, 2 months

2
1
0 0

Memory options for an HP 1000 (HP 21MX / 2112A)

by marc.verdiell＠gmail.com

Yes I was asking myself the same question, and your answers continue to help a lot. I think I should retrace the path of technology evolution. Start getting it up with paper tape tests and BCS. That probably means working mostly in assembly and getting to know the most basic level of the machine. Which is just about what the doctor prescribed. Then add the mag tape for which I have the tape and the cards. I got a 7900 disk though (with cables and power supply, but no interface cards to go with it!). I'd love to get that one going later on. Then it would make sense to have the bigger memory to run disk based OS systems. So 7900 interface card and memory are definitely on my hunt list... By the way I also have a punched card reader which I just restored. Documation ML600, but the exact same model that HP re-branded I believe. Do you know which interface cards I need to connect it to the HP-1000? I suppose one of the 16 bit IO ones with a driver to go with it? Sorry to keep picking your brain, but that is so much more efficient than trying to piece it together (usually wrong at first) from an disorganized pile of documentation! Marc From: "J. David Bryan" <jdbryan at acm.org> >> So I might be in the hunt for the cards or alternate solutions you >> mentioned. >I'd suggest that the question to answer first is whether you want to expend >the effort and expense to gather the moderate amount of additional hardware >necessary to run one of the more advanced disc-based OS versions that can >use DMS. Note that the design of the memory mapping hardware in the 1000 >requires explicit software support (i.e., programming of the DMS hardware) >in order to use more than 32KW of memory. Earlier OSes that did not >support DMS will simply ignore all memory in the machine over 32K, even >when DMS is present. >With the hardware you have, you can run a paper-tape based OS, such as BCS >(the Basic Control System) in 24K. BCS is fairly primitive, but it does >offer an assembler, FORTRAN IV, and ALGOL compilers, and paper-tape BASIC >interpreters were also available (from the user contributed library). >The hardware requirements for running the disc-based RTEs are listed on >these HP Computer Museum pages: > http://www.hpmuseum.net/display_item.php?sw=565 > http://www.hpmuseum.net/display_item.php?sw=566 > -- Dave

11 years, 2 months

2
1
0 0

Monitor wanted (was Re: 8-bit Computer TV Channel Use)

by spacewar＠gmail.com

On Sat, May 23, 2015 at 9:36 AM, Fred Cisin <cisin at xenosoft.com> wrote: > Would you like some of the REAL monitors? They will do all sorts of bizarre I'd like some of the REAL monitors, such as an NEC Multisync 3, that can do VGA *and* NTSC-rate analog RGB. At some point the monitor companies stopped bothering to make them handle horizontal scan rates below 30 kHz.

11 years, 2 months

3
3
0 0

More HP-1000 Parts - Get 'em while they last!

by hpfparts＠yahoo.com

I recently posted reference to a page on my personal web site listing HP-1000 assets for sale. There was a flurry of interest. As of this afternoon, the last of a half-dozen boxes were shipped to the new owners of many of these items. Thank you to everyone for their interest and thank you for your patience. Several individuals have expressed interest in acquiring more parts. The good news is that I still have items left. The bad news is that the 256k and 128K memory boards, +True In/Out, Term, Timebase, Error Correct, FPP Arith, and FPP control cards are all gone. So consider this fair warning: If there is something else you need to restore your system or to build a reserve of spares, now is the time to grab it before it's gone, too. The inventory sheets have been updated on my site to reflect what is left. Some items are being offered piece-by-piece, some I'd prefer to sell as a set. Details are on my site. www.hpfriedrichs.com/hpfparts/hpfparts.htm 73, Pete AC7ZL

11 years, 2 months

1
0
0 0

Logic Analyzer software for the HP 10342B pre-processor

by marc.verdiell＠gmail.com

>From: Mike Loewen <mloewen at cpumagic.scol.pa.us> > Is it on this disk? > http://www.keysight.com/main/software.jspx?ckey=sw574&lc=eng&cc=US&nid=-5369 02556.536879990&id=sw574 No, but a generous member of this list sent me the files off line. Is this a helpful group or what. I am all set. Marc

11 years, 2 months

1
0
0 0

54 TK50 tapes on eBay

by Arno_1983＠gmx.de

Johnny Billquist <bqt at update.uu.se> wrote: > The TK50 normally do not gum up. There are two problems with them, and > those problems have been around since day 1. > The first one is that the heads get dirty. Cleaning with isopropanol or > similar with a lint-free pad solves that just fine. > The second problem is that the tape pickup gets unhinged. Remove the > covers and then you can fix that easily. So much for "YMMV": jkunz and I must have had some really bad tapes back then at the VCFe a couple of years ago. When we tried to read them (in a TK70, I think - does that make the difference?), they slowed down the mechanism, produced a squealing sound and stuck to the head to the point where in some cases the tape (carrier) broke in some cases. We did clean the head and tape guide parts with IPA several times only to get the same problem again. I'm sure he can elaborate a bit more about the tapes and the equipment used but I think I have it mostly correct. So Long, Arno

11 years, 2 months

9
14
0 0

Sanyo Denki 1402-B2 (paper tape drive)

by tdk.knight＠gmail.com

anyone know how to hook these up? has controllers to talk to a Shibaura VMC-45 with a Tosnuc 600 control picked it up for 50 bucks in near mint condition localy this week and i'd like to hook it up to my laptop to back up every tape i got at this time

11 years, 2 months

1
1
0 0

Seeking keyboard for Compaq Portable

by dave＠661.org

Does anyone here have a spare keyboard for a Compaq Portable? -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

11 years, 2 months

3
3
0 0

HP 9144A and three QIC tapes available for free

by p.gebhardt＠ymail.com

Hi list, 3 years ago, I picked up an HP 9144A QIC tape drive with HP-IB interface. It came with three 16-track QIC tape drives. I never found the time to connect it to my HP 9000-300 and realized that I will probably never make use of it, which is why I'd like to give it to some other collector's hands who is interested. I powered up the drive for 2 hours, no smoke, the fan was running as expected. Nothing else tested. Picture of the actual three tapes which come with the drive: http://www.digitalheritage.de/OTHER/20141223_155006_tn.JPG I forgot to take pictures of the drive, but will do it, as soon as I can access it next week again. In the mean time, here is another one of the tape drive (not mine): http://www.hpmuseum.net/display_item.php?hw=257 The drive weights 9kg (20 lbs). First come, first serve. Drive and tapes are for free. You have to pay shipping costs or come to pick it up. Location is Bonn, Germany. Kind regards, Pierre ------------------------------------------------------------------------------- Pierre's collection of classic computers moved to: http://www.digitalheritage.de

11 years, 2 months

2
1
0 0

network event

by jwest＠classiccmp.org

Yesterday afternoon we had a "network event" on our storage network. Traffic was flowing, but with severe drops in connections. We believe we have most - but not all - resolved at this point. Unfortunately, in the thick of battle production machines come first so classiccmp server sat down for a while and was just brought back up. Apologies for the inconvenience.. Going to sleep now. J

11 years, 2 months

4
4
0 0

Looking for RL11 (Unibus RL02 controller)

by derschjo＠gmail.com

I've been using my lone RL02 with my QBus systems, I'd love to be able to use it with my 11/34 as well. (If anyone has a spare RL02 *drive* I'd be interested as well...) I have various DEC stuff for trade, drop me a line if you have one going spare. Thanks! Josh

11 years, 2 months

1
0
0 0

Memory options for an HP 1000 (HP 21MX / 2112A)

by marc.verdiell＠gmail.com

Dave, Super useful info again. In the meantime the machine has arrived, in very good shape. I'll post pictures when I have time tomorrow, and a video hopefully. I took a quick look inside to confirm - there is a DCPC and a MEM protect card - Memory controller is an older 2102A - Three are three 8k 2102A memory boards - No MEM card in slot 112 - Under the processor board there is a screwed on card, which seems to have ROM on it. Microcode I presume, but I don't know if that's the one you were talking about. I'll post photos to confirm The IO cards and the paper tape reader / punch that came with it suggest that it was configured with a paper tape reader, a paper tape punch, a mag tape and a TTY interface. A plausible story is that this was an early machine setup for paper tape and TTY and didn't have extended memory. The early 2102A controller fits that picture well. So I might be in the hunt for the cards or alternate solutions you mentioned. Marc From: "J. David Bryan" <jdbryan at acm.org> On Tuesday, May 19, 2015 at 23:12, Marc Verdiell wrote: > Thanks, very useful info, and the manual is indeed what I was missing. You're welcome. > But now where to find the DMS, with two cards in particular, that's > not going easy to find both that match... First, are you sure that the machine does not have DMS installed? It was a very common option that became standard later on, as all versions of the RTE operating system after RTE-II (circa 1976) required it. Second, if the machine originally came with DMS but was stripped for resale, then possibly only the MEM card (in slot 112) was removed. The firmware card is screwed onto the CPU board on the underside of the machine and is only accessible if the bottom cover is removed. So maybe it was overlooked, and the availability of MEM cards is likely to be reasonable, as the same card (but with different firmware) was used in the E/F-Series machines. Third, if the machine has neither DMS part, then indeed finding an M-Series DMS firmware card might be difficult. However, DMS firmware was also included with the later M-Series Fast FORTRAN Processor firmware (product number 12977B). Again, the FFP was a common option, and availability of that card might be better than the older standalone DMS firmware card. Fourth, if you can find a standalone MEM card, the M-Series DMS/FFP firmware source is part of the HP 1000 Software Collection on Bitsavers, so you could burn the required firmware PROMs and install them on a 12791A Firmware Expansion Module card, which plugs into the I/O backplane and cables to the CPU board. Both the FEM and the MEM were used on E/F-Series machines, so availability should be reasonable. Finally, the simplest HP operating system that used DMS (RTE-III) had additional hardware requirements: a Memory Protect card, a Dual-Channel Port Controller (i.e., DMA) card, one of several console I/O cards, a Time- Base Generator (i.e., clock) card, and either an HP 7900A or 7905/06/20/25A hard drive and its associated I/O interface(s). The latter may be the most difficult and expensive part. You can avoid the hard drive and use Ansgar Kueckes' HPDrive emulator with an HP-IB I/O card, but that requires RTE-IVB as the minimum OS, which requires at least 96KW of memory (128KW if you want to do anything other than boot the system :-). MP and DCPC also were exceedingly common options, so I'd be surprised if your system didn't contain them, unless they've been stripped out for resale. Without DMS, you're limited to 32KW. In that, you could run (with some additional hardware, most notably an HP hard drive) DOS-III or RTE-II. Without a hard drive, you'd be limited to running one of several paper tape or mag tape-based HP OSes. There are third-party OSes that run on the 1000, but I know nothing about them. At least software is no problem; virtually everything that HP developed for the 2116/2100/1000 machines is available via the Bitsavers collection. -- Dave

11 years, 2 months

2
1
0 0

8-bit Computer TV Channel Use

by nf6x＠nf6x.net

I've been brainstorming about hypothetical hardware for converting video from vintage 8-bit computers to drive modern monitors well, with support for all of the dirty tricks like color aliasing that many of them used. One of the things I would like to understand is the range of RF frequencies used by the machines that connected to ordinary televisions. My old Color Computer used US VHF channels 3 or 4 for NTSC video. I found a reference to the ZX Spectrum using UK UHF channel 35 for PAL video. What other channels were used all over the world by 8-bit home computers (and video games, too, I suppose), and which TV standards were used with them?

11 years, 3 months

7
15
0 0

Wanted: ASM-48 for Intellec MDS-2

by mainpatents＠gmail.com

That just sounds wrong to me applying +25v to do a read/verify. You're misinterpreting the datasheets. Richard

11 years, 3 months

3
4
0 0

hp 1820-7730 datasheet? HP-PB J2146A LAN interface, SOT23 part missing

by Arno_1983＠gmx.de

Hello Folks, with a bunch of HP 9000 equipment, I received a HP-PB "802.3 10Mbps LAN" card that was missing the 10base2 BNC connector and the SOT23 SMD part directly behind it. No idea why and by whom they were removed. A BNC socket was easily found in one of my parts bins, but what about the SMD component? My first idea was this might just be some sort of transient protection device (I've seen a really old ISA NIC fitted with a neon bulb next to the BNC for that purpose!) but there probably is a bit more to it, as pin 1 connects to BNC Center and to pin 7 on the PHY (U18, NatSemi SS9130AP also HP house-marked as 1820-7730), pin 2 is BNC shield/ground *and pin 3 goes to pin 5 on the PHY*. Unfortunately I was not able to find a datasheet for the PHY that would probably give an example circuit - can anyone please either point me to that or, if they have an example of that card available, look up the marking of that SOT23 device for me? Card would be for my HP9000-K100 PA-RISC, for which I'm also looking for one of the graphic options. One keeps popping up in the US 'bay but the (commercial) seller wants real money for it - add S&H to old europe and it's waaay out of my confortable range. Thanks in advance, Arno

11 years, 3 months

1
0
0 0

Reading/Verifying the Intel 8041A

by mainpatents＠gmail.com

The Intel AFN-00188B Datasheets for 8041A/8741A specify that EA max is 24.5V. The verify mode for "PROM/ROM" holds EA high at 23V. The 8048/8748 Datasheets say EA is 32V for 8748 Verify but need only be +12V for 8048. Richard

11 years, 3 months

3
2
0 0

New PDP 11/44 pics, interior card cage

by billdeg＠buzz1.com

I mentioned earlier I had an ebay auction running for an 11/44 and there were questions about the interior card cage. I uploaded new pics. Here is what I could discern from the photos I took of the interior card cage's cards M7856 M7819 M7814 M7258 M7258 M7258 M7297 / M7298 M9202 M7295 ?? ?? M7819 When I posted the original listing I assumed incorrectly that all of the computer cards were in the 11/44 and the internal cage was for the few backup tape drive interface connectors. Apparently I was way off. The new pics help explain what the 11/44 was doing before being taken out of service.. Ebay: 271869650084 (ends later today) new pics: vintagecomputer.net/digital/PDP11-44_2nd/

11 years, 3 months

2
1
0 0

More stuff that can't be shipped

by jnc＠mercury.lcs.mit.edu

> From: Cindy Croxton > Piles of OLD DEC stuff Like what? Like most people on this list, I'm far enough away that I can't just drive over (especially on such little notice), but if there's something good there, perhaps a local DEC collector can help, or I could pay someone to go get it. But without having _some_ idea what's there.... Any cables? (Those seem to usually be in short supply.) Any chance of some pictures, if you have no idea what's what? Noel

11 years, 3 months

2
1
0 0

More stuff that can't be shipped

by sales＠elecplus.com

Couple of Kaypro ( and 2 and a II) Several old 80386? Compaq luggables A supersonic testing machine of some sort A Sperry mainframe? Size of washing machine A plotter with only 10 hours on it A DG Pent Pro server An OLD HP emulator with LOTS of thick SCSI type cables Piles of OLD DEC stuff Plotters, HP, new in box, 6 or 8 pens, I forget which, IBM badged Lots of other old things, like the computers and terminals in the Halt TV show NIB but very old network stuff No way to ship, someone please bring wallet and truck/trailer J Must be gone by Monday. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-792-3400 phone sales at elecplus.com AOL IM elcpls

11 years, 3 months

2
1
0 0

the 2 old original IBM machines

by sales＠elecplus.com

8088 computers, one has 2 floppies, 1 has 1 floppy and 1 hdd. Both fully tested and functional. No keyboards now, but there is an original IBM mono monitor, and the printer. I do NOT want to ship; these will not survive UPS very well. We are about 1 hour from San Antonio. Make a good offer, take them home. Lots of software to go with these. Must be gone before Monday. I will be at the warehouse all weekend. Also 2 NIB 14" amber VGA monitors. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-792-3400 phone sales at elecplus.com AOL IM elcpls

11 years, 3 months

2
1
0 0

An 80286 motherboard, NIB

by sales＠elecplus.com

Found another goodie, saved from the scrapper. VLSI high performance Baby AT Turbo mainboard 12 MHZ Zero-Wait Up to 4MB DRAM 6x16-bit and 2x8-bit ISA slots Will require a separate hard/floppy controller, video card, memory, CPU, and 80287 if you want one. Supports 360kb, 1.2MB, 720KB, and 1.44MB floppies Includes manual. Note: this motherboard does NOT have slots for 30-pin or 72-pin memory. They all need to be socketed chips, which I do NOT have. Make an offer, take it home! I also have new hard/floppies controllers, still in the box. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-792-3400 phone sales at elecplus.com AOL IM elcpls

11 years, 3 months

1
0
0 0

Interactive Baseball/Don Daglow

by cclist＠sydex.com

WikiP under the "PDP-10" subject claims that Don Daglow wrote the first computer baseball game in 1971. I don't think that this is accurate; do any old CDC-ers out there remember the BAT PP program on every CE's MACE deadstart tape? I believe that it preceded Daglow's game by a couple of years. I know this may chafe some of the DECfans out there, but I think the claim is simply not accurate. --Chuck

11 years, 3 months

1
0
0 0

Memory options for an HP 1000 (HP 21MX / 2112A)

by marc.verdiell＠gmail.com

Thanks, very useful info, and the manual is indeed what I was missing. But now where to find the DMS, with two cards in particular, that's not going easy to find both that match... >> ...the recently posted IO manual says it can support ... up to >> 1.28M. >From: "J. David Bryan" <jdbryan at acm.org> >That's correct, although the machine must be equipped with the Dynamic >Mapping System (DMS) in order to access more than 32KW. For the 2112, DMS >is product number 12976A. It consists of a card (the HP 12731A Memory >Expansion Module) that plugs into slot 112 in the front card cage) and >another card that contains microcode that implements the DMS instructions; >the latter mounts to the main CPU board at the bottom of the chassis... >The "Standard Performance Memory >Systems Installation and Service Manual" (5955-4310 April 1979) details the >requirements; it's available from Bitsavers in the "1000" subdirectory. > -- Dave

11 years, 3 months

3
2
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