test-drb

test-drb@ccmp.vtda.org

101090 discussions

by cctalk＠emailtoilet.com

Just received my latest eBay purchase. 5 3850 MSS cartridges. 3 of them had no tape inside. Just wondering why. Data destruction? Inquisitive previous owner? 1 of them has an opaque yellow shell instead of the smoked clear plastic. Possible CE cart? Has magic marker printing on it BAD MSS TAG I thought it took 2 of these carts to restore a 3330 disk. One of these carts has a label on it with 'Data Management Conference October 19-21, 1982 San Jose, California. Me thinks the cart was given out as a souvenir. I was also wondering what old mainframe magnetic media cost back in the day. 2311, 2314, 3330 packs. 2314 Data Cell and a 3850 MSS cartridge. And a 7340 tape cassette. I was on a business call to Yellow Cab in Chicago in the early 70's. We entered through the garage and there was a pile of 2311 packs there. They had just installed a 2314 system and the 2311 packs were being thrown out. I asked if I could have an old pack. I chose a yellow 3M pack. Still have it. :)

6 years, 2 months

UniBone (Linux-to-UNIBUS bridge) available

by j_hoppe＠t-online.de

Hi, After half a year I can dump out UniBones again. Seems I lost contact to several interested guys, hope this broadcast helps. Info: http://www.retrocmp.com/projects/unibone Conditions: http://www.retrocmp.com/projects/unibone/283-unibone-getting-one best regards, Joerg

6 years, 2 months

Naked Mini 73-53628 Information

by tangentdelta＠protonmail.com

Hello! I have a Naked Mini system that was used as the controller in a Linotype phototypesetting machine. From what I've been told, the Naked Mini CPU board is Nova compatible. I would like to use the CPU board in my own system, but I don't have enough information to do so. I haven't been able to find any documentation online that describes the backplane interface. I could reverse engineer the backplane using one of the RAM boards as reference, but if the information already exists it would save me a tremendous amount of time. Here is a gallery of the controller cage: https://imgur.com/a/LNkQisq Thanks.

6 years, 2 months

OT - FTGH - U-Matic Tapes

by Kevin＠RawFedDogs.net

On Sun, Jan 19, 2020 at 11:30:31PM +0000, Kevin Parker via cctalk wrote: > A we're all aware members on this list often dabble with other > technologies. In my very aggressive cleanup of my hobby space I came > across a number of U-Matic Video Tapes. If anyone is into this older > video technology and would like these 8 tapes please contact me off > list. (They are physically located in the south west of Victoria, > Australia) I'm interested in the technology, but I'm on the wrong side of the world to add these to my collection. I have a few U-Matic tapes, but haven't found a player yet. To make this slightly less off topic, three of the U-Matic tapes I have are in an SRA Computer Training Library boxed set containing: MVS Concepts and Facilities - Mini-Course 2 - Introduction to Job Processing MVS Concepts and Facilities - Mini-Course 5 - MVS System Programs MVS: JCL Coding - Mini-Course 11 - Requesting Space for DASD Data Sets I found them in my current employer's document library years ago. Any player(s) we had were long gone, so I've never seen them. -- Kevin http://www.RawFedDogs.net http://www.Lassie.xyz http://www.WacoAgilityGroup.org Bruceville, TX What's the definition of a legacy system? One that works! Errare humanum est, ignoscere caninum.

6 years, 2 months

Service manual for Panasonic LF-5010 WORM

by cclist＠sydex.com

I'm looking for a service manual for a Matsushita/Panasonic LF-5010 WORM drive. In particular, cleaning and an exploded parts diagram. TIA, Chuck

6 years, 2 months

Vintage HP test gear and other stuff at Anchor Electronics...

by lbickley＠bickleywest.com

Hi Dan, I sent the same message to the Bay Area Classic list and CCTALK. Folks from the Bay Area got photos. Don't know what happened to CCTALK... Lyle -- On Wed, 29 Jan 2020 13:51:06 -0500 Dan Veeneman <dan at decodesystems.com> wrote: > Hi Lyle, > > At least on the message I received from the list there were no attached > photographs. > > > Cheers, > > Dan > > > On 1/28/2020 7:02 PM, Lyle Bickley via cctalk wrote: > > I was browsing around in the back of Anchor Electronics a couple of days > > ago and came across some clean (but dusty) vintage HP test gear - and > > several very cool large variable resistors. I've attached some pictures of > > both. > > > > BTW: Those of us in Silicon Valley are fans of Anchor - because they carry > > lots of IC's, parts, connectors, etc. Their catalog can be downloaded here: > > https://anchor-electronics.com/ > > > > If you're interested in the HP test gear or large variable resistors > > contact Alicia - for parts, contact any staff member. > > > > Note: I receive NO financial benefit from this email and my only > > relationship with Anchor is as a long time customer. Phone: (408)727-3693 > > > > Best, > > Lyle -- 73 NM6Y Bickley Consulting West Inc. https://bickleywest.com "Black holes are where God is dividing by zero"

6 years, 2 months

UniBone: Linux-to-DEC-UNIBUS-bridge, year #1

by j_hoppe＠t-online.de

Hi Pontus, > This thread makes me very happy. > > I have a KS10 that I'm working on (quite slowly). The PSU is checked out > and working. Then console seems to work, I can deposit/examine to CRAM > and RAM. > > Next step will be to load micro code and I've been mentally preparing to > tackle an RH11 emulator for the Unibone. > > I'll buy one from Joerg as soon as the second batch is ready and me and > my KS10 will happily be guinea pigs. > > And if I can, I'll help with development. I now have UniBones ready to ship. More on PM, kind regards, Joerg

6 years, 2 months

Vintage HP test gear and other stuff at Anchor Electronics...

by lbickley＠bickleywest.com

I was browsing around in the back of Anchor Electronics a couple of days ago and came across some clean (but dusty) vintage HP test gear - and several very cool large variable resistors. I've attached some pictures of both. BTW: Those of us in Silicon Valley are fans of Anchor - because they carry lots of IC's, parts, connectors, etc. Their catalog can be downloaded here: https://anchor-electronics.com/ If you're interested in the HP test gear or large variable resistors contact Alicia - for parts, contact any staff member. Note: I receive NO financial benefit from this email and my only relationship with Anchor is as a long time customer. Phone: (408)727-3693 Best, Lyle -- 73 NM6Y Bickley Consulting West Inc. https://bickleywest.com "Black holes are where God is dividing by zero"

6 years, 3 months

IBM BSC CRC?

by mattislind＠gmail.com

Hello IBM BSC Experts! I am trying to figure out the CRC algorithm used by IBM BSC. I have tried a lot of different settings in crcreveng but not getting a match. I am pretty convinced that the CRC-16 used by IBM was 16 15 2 x + x + x + 1 This would give the polynomial 8005. Anyone against this statement? But what was the initial value? I have two actual messages from equipment employing IBM BSC: 32016CD90240404070032688 and 32016CD90240C84050030D28 >From this document ( http://bitsavers.trailing-edge.com/pdf/ibm/datacomm/GA27-3004-2_General_Inf… ) I get that the CRC calculation is reset on SOH (01h) or STX (02h) and accumulates until and including the ETX (03h). (excluding any SYN (32h) characters). I have tried crcreveng back and forth and I am not getting the CRC bytes right. I think I have tried most things, different bit order, different initial values. But nothing. I also tried the mode in crcreveng where it searches for matches but it always says "no models found". Maybe I am doing something wrong when using crcreveng? Any clues? Surely there are someone out there that has been around for some time and knows this, right? On the topic of crc reveng I tried to verify how it works by using some kind of known value: This article https://stackoverflow.com/questions/23638939/crc-16-ibm-reverse-lookup-in-c has a specific example where a certain data in (75h) with initial value 90f1h gives output 6390h. I tried to get crc reveng to do the same, but failed. There has to be some option I simply do not understand. I tried most combinations. /Mattis

6 years, 3 months

recovering data from old hard drive

by elson＠pico-systems.com

I have dug out an old SCSI hard drive from 1997 that may have some interesting stuff, most especially the source code for the SGI Iris flight sim demo. I have a Linux system with an Adaptec 2940 (aic7880) that has two connectors on it. It SEEMS from some probing that the 50-pin IDC connector on the top of the board is single-ended SCSI (it seems to have mostly grounds on one row of pins). Same for the drive, which is a Quantum ProDrive LPS. The drive spins up and does some seeking right after power-on, so it sounds like it is working. But, I can't seem to find that the drive is being recognized by the aic7xxx driver. So, looking at /proc/scsi/aic7xxx/## I see the device addresses all show just the negotiation settings, and /proc/scsi/scsi just shows my SATA devices but not the real SCSI ones. I have the right cable to plug my old HP scanner into the mounting plate Honda connector, and it shows up fine. I could try getting a Honda to IDC-50 cable, but I thought the IDC50 connector on the board edge OUGHT to work. Does anybody have any suggestions on what to try? Thanks, Jon

6 years, 3 months

KE11-A stuff

by jnc＠mercury.lcs.mit.edu

So I've decided to try and build up a KE11-A Extended Arithmetic Element. I have most of the boards (although I*m missing a M234 Register dual-width board, if anyone has one). The main thing I'm missing at this point is a backplane. I do have a BB11 (which came out of an old piece of data acquisition gear, or something like that) which I can wire up, but before I start on that I figured I'd ask and see if anyone has one they would be willing to part with. (Hah-hah!) If not, if someone does have one, even if you want to hang onto it, I'd really appreciate good photos of the pin side of the backplane, so I have a more detailed idea (than just the prints) on how the wiring goes. And speaking of the prints, although there are a scanned set online, they are pretty low-res, and some parts (e.g. the wire list, which was typical line printer output) are hard to read as a result. So a new scan would be really, really appreciated. Thanks (I hope)! Noel

6 years, 3 months

Unidentified peripheral in Tektronix PDP-11/20 system

by steven＠malikoff.com

I was idly browsing some old electronics magazines on archive.org and saw this Tektronix testing system from 1972 that clearly has an 11/20 and TU-56. Just curious as to what the piece of gear is sandwiched between the two. It sort of looks like a paper tape reader, but for the two white buttons or whatever they are at the lower right and the white bit at top right. It seems to be in a DEC bezel(?) It doesn't seem to match the bespoke Tek gear at right which looks quite different. I'm guessing it really is just a paper tape reader. http://www.surfacezero.com/g503/data/4173/Tektronix_S-3260_automated_test_s… Thanks in advance. Steve

6 years, 3 months

Assorted PCB ID?

by coryheisterkamp＠gmail.com

I found myself cleaning up the shop recently, and came across some vintage circuit boards I had stashed away 20 years ago. I?m curious if anyone can shed some light on what systems they originally went to. Here?s a link to the album?more info below. https://photos.app.goo.gl/amRmm5P8375js4o1A <https://photos.app.goo.gl/amRmm5P8375js4o1A> #1 Marked Aeronutronic Address Buffer D700909. Socketed transistors and test points along leading edge with ID tab visible when installed. #2 No name or brand marking, sides have cast aluminum rails and a clever locking mechanism. Transistors are 2N-167 in clips. #3 Marked 'Power Supply 1534 8253' 5-1-70, single-sided with edge connector. #4 Large card 11?x10?, Burroughs logo. Date stamp of Jun 1972. Not sure if someone has robbed some of the ICs or if this was optional population. #5 Small 3x4 card, single-sided but every hole has an unusual pressed-in and flow-soldered barrel. Relays are marked Blue Bead 26.5V. Looks early Japanese. 4 corner brackets have threads swaged-in for mounting. Thanks, Cory

6 years, 3 months

from Discord

by aek＠bitsavers.org

9:10 PM jwest and now the image of the classiccmp mailing list server should be back to where it was the day of the failure. As per above, no data lost except a handfull asking if the server was up.

6 years, 3 months

test test

by jwest＠classiccmp.org

test

6 years, 3 months

Interesting device on eBay -- CDC clock generator?

by cctalk＠harlie.org

The seller thinks this may be a drum memory, but it is clearly not. My guess is that it is some kind of clock generator. Anyone recognize this? https://www.ebay.com/itm/Vintage-Mainframe-Computer-Part-Drum-Memory-Contro…

6 years, 3 months

Scientific Data Systems Cards

by ryan＠diskfutility.com

Greetings all, I have a contact that has unearth a massive cache of Scientific Data Systems modules like the one pictured here in the Houston area: <https://i.imgur.com/m0l5IiB.jpg> If anyone has a need for these modules or can identify based on that photo which SDS mainframe let me know and I'll put you in touch with the owner. Best, Ryan

6 years, 3 months

Another old phart trying to clean out the house

by luigi30＠gmail.com

I?m a collector in the Chicago area. Whereabouts are you located? I can rope up a car to grab some stuff. Got any pictures of the piles? Sent from my iPhone

6 years, 3 months

LIF filesystem under linux

by svens＠stackframe.org

Hi list, is anyone aware of a LIF filesystem implementation for Linux? I'm aware of lifutils, but i'm looking for filesystem integration either via fuse or via in-kernel module. Haven't found anything on the internet. Thanks Sven

6 years, 3 months

formatting and checking floppy disks for bad sectors

by wdegroot＠ptd.net

i read / viewes a video on ormattinf a floppy with trk 0 bad i attempted to download the suggested utility bt it returned " filenot foiud: if there is sich a util, can you sedn me the file? it is annoying to have a kiooyt go bad te next tie it is used. sometimes in minutes. i am generaly working wit oder stuss on ss retirement.

6 years, 3 months

anyone heard from Cindy Croxton?

by aek＠bitsavers.org

I tried sending an email about a week ago after noticing https://elecshopper.com/ was "down for maintenance"

6 years, 3 months

VTech Laser 3000 / Dick Smith CAT composite video pinout

by pye＠mactec.com.au

Hi all. I know I could scope this out, but just wondering if anyone has the pinout for the VTech Laser 3000 / Dick Smith CAT (in Australia) composite video pinout. It?s not in the technical manual that I have, and can?t find it online. Thanks, Chris

6 years, 3 months

Anyone interested in ARCNET, Token Ring, FDDI, HIPPI, Strip network code?

by abs＠absd.org

NetBSD still has code for various interesting^W older network protocols such as ARCNET, Token Ring, FDDI, HIPPI, and Strip. The code is quite old and the drivers are not MP safe, so its being proposed that the code be dropped, with the understanding that if anyone wanted to step forward to update any of the drivers that would also be fine. Just in case anyone has the right kit and some itchy coding fingers :-p https://mail-index.netbsd.org/tech-net/2020/01/date1.html David

6 years, 3 months

Another old phart trying to clean out the house

by j＠ckrubin.us

I'm in the process of "cleansing" before putting our house on the market in the near future. I've been eBaying lots of things over the last couple of years (thanks to all here who have been good customers!) and have more to sell, but also lots of "stuff" with little or no market value that could be useful to people who build/repair/tinker with the old machines that we value. If there is anyone in the greater Chicago area (or anywhere else) who'd like to drive over and take away anything from a carton to a carload of old stuff, from docs to chips, please let me know. No inventory list, no shipping - just a walk-through and carry out. In another two weeks (end of January), I'll be trashing most of it. Reply to me directly (off list) if you want to come by. Jack

6 years, 3 months

pdp11 MicroPower/Pascal

by jacob.ritorto＠gmail.com

Hi, Would anyone still have a copy of latest pdp11 MicroPower/Pascal? I'm trying to have a retro programming contest / party at my house and want to feature Pascal along with Macro-11 and maybe c on a real 11/23 with RL02s under TSX. Hoping to hang like ten users at once on the 'ol girl and make 'em really feel the speed. I might let up a little and run the contest on my 11/73 with scsi if it's too terrible :) Anyway, looked around the net for hours and can't find a copy of MicroPower/Pascal, so if anyone can help, I'd be grateful. Found TSX-Plus, though! Big Thanks again to Lyle and whomever's running the classiccmp site these days! --jake

6 years, 3 months

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