Re: Kennedy 9800 - Power-up tips?

On 4/23/20 11:21 AM, Patrick Finnegan via cctalk wrote: As a minimal step, I might disconnect the PSU from the rest of the drive, and plug it in like that for a moment, but it's probably best to not run it without a load for very long. The 9800 is the 8" little brother to the 9000 tension arm

Re: Bob Davis and old computer stuff

On 4/25/20 8:28 AM, Chris Zach via cctalk wrote: Hi! Does anyone here remember Bob Davis? C There is also a sad story that his mother wouldn't let any of his collection be released though several people attempted to preserve his PERQ collection since his passing. I gave up trying a long ti

Re: Charles Lasner [Was: Re: LINC-8]

On 4/27/20 6:34 PM, Bill Degnan via cctalk wrote: He said he had his own OS that he wanted me to try out that wish has dragged on for decades I hope whoever ends up with his estate knows people are interested in P?S/8 http://www.vcfed.org/forum/showthread.php?49581-Some-P-S-8-files-have-appear

tape baking

https://www.morressier.com/article/towards-understanding-thermal-remediation-degraded-archival-reeltoreel-audio-tapes/5e736c6bcde2b641284abb13

Re: tape baking

On 4/28/20 3:56 AM, Al Kossow via cctalk wrote: https://www.morressier.com/article/towards-understanding-thermal-remediation-degraded-archival-reeltoreel-audio-tapes/5e736c6bcde2b641284abb13 https://listserv.loc.gov/cgi-bin/wa?A2=ARSCLIST;d144d59c.2004

Re: tape baking

On 4/28/20 11:47 AM, Chuck Guzis via cctalk wrote: For whatever it's worth Magnetic tape recovery people live in silos I doubt anyone at LoC has ever even heard of you or me, or that they will ever see the years of discussions we've had on this subject. I wonder if they he even talked to the

Re: tape baking

On 4/28/20 3:37 PM, Alan Perry via cctalk wrote: wiping the posts with acetone or wiping the tape with cyclomethicone? Should I be baking the tapes? If so, what is a safe way to bake QIC cartridges? I bake the carts with the bands removed and the covers off in a food dehydrator I also wrap

Re: IBM DCS/DCOS--how common?

On 4/28/20 5:53 PM, Chuck Guzis via cctalk wrote: This talk of old tape brings up a question that I wanted to ask the list. I've run into some tapes that say they were prepared on the IBM DCS setup (7044-coupled-to-7094) running DCOS. I confess to never having run into the 7044 in real life--it

Re: In search of Three Rivers PERQ 1 Keyboard

On 4/29/20 5:51 PM, null via cctalk wrote: • This is for use with an actual real PERQ 1 I'm hoping CZ finds some spares. I have a PERQ 1 w/o kb or monitor. I've been searching for replacements for over two decades. You can see my requests back in the comp.sys.perq archives.

Re: tape baking

On 4/29/20 10:01 PM, Curious Marc via cctalk wrote: Or replacing the posts with ones machined from Teflon or Delrin? The posts are staked in. You might be able to make tiny rollers to go over the pins Their working diameter isn't super critical

Re: In search of Three Rivers PERQ 1 Keyboard

On 4/30/20 2:44 AM, Chris Zach via cctalk wrote: what does it look like? https://en.wikipedia.org/wiki/PERQ

Re: In search of Three Rivers PERQ 1 Keyboard

On 4/30/20 8:11 AM, Al Kossow via cctalk wrote: On 4/30/20 2:44 AM, Chris Zach via cctalk wrote: what does it look like? https://en.wikipedia.org/wiki/PERQ or http://www.vintagecomputerexpo.com/2014/09/a-perq-in-time-saves-1.html or http://www.chiark.greenend.org.uk/~pmaydell/PERQ/ from

Re: In search of Three Rivers PERQ 1 Keyboard

On 4/30/20 2:55 PM, Josh Dersch wrote: It is, I refoamed mine for VCFPNW last year.  I can take internal pictures if it'd help anyone out. - Josh can you dump the firmware? or was that already done for the PERQ emulator? it should be some flavor of 8048

Re: In search of Three Rivers PERQ 1 Keyboard

On 4/30/20 4:21 PM, Al Kossow wrote: can you dump the firmware? or was that already done for the PERQ emulator? it should be some flavor of 8048 or not.. may be old enough to have been discrete

Re: Pdp cpus

On 5/2/20 5:10 PM, Kevin Lee via cctalk wrote: Interesting stuff https://github.com/1801BM1/cpu11 Eric Smith's work on the WD CP1600 chipset's various microcode https://github.com/brouhaha/lsi11uc https://github.com/brouhaha/cp16sim https://github.com/brouhaha/wd9000uc https://github.com/b

Re: MSV11-R doc needed

here is a picture of the board http://www.aceware.com.au/acms/ExpandThumbnail.asp?str640_480Image='images%2FInvent%2FGeneralRoboticsMSV_11R.jpg'

Re: ISO: Diablo 30 heads

On 5/12/20 6:10 AM, Jay Jaeger via cctalk wrote: I don't remember now if these parts I have were from drives originally on a DEC or DG system. The easy way to tell is the low density heads have metal instead of ceramic disks. If anyone has the older metal style, Carl Claunch is trying to fin

unibus scsi board

mislabeled as qbus https://www.ebay.com/itm/143603725400

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

They made their own, and it is very definitely a Japanese design You have to be careful with the motors, many are 220 though it looks like they are 100v in the pictures of that model on the web I went through the excercise of trying to find reader schematics a couple of years ago for Japanese

Re: PDF of FANUC TAPE READER A860-0056-T020 Manual Wtd.

On 5/12/20 1:42 PM, Bill Degnan wrote: Al, Here is the Ebay auction, I hope the manual is included assuming the 50-pin port is the output port. ? there isn't a manual shown the 50 pin connector is the I/O you can find descriptions of the pinout online from people making paper tape reader re

Re: ISO: Diablo 30 heads

i've uploaded what the high density heads look like to http://bitsavers.org/pdf/diablo/photos/heads

Re: ISO: Diablo 30 heads

On 5/14/20 7:43 AM, dwight via cctalk wrote: I wonder if a high density head could be used on a low density machine. I'd think the main difference would be track width. It wouldn't work well at all for interchange with a real IBM 1130 disk drive, which would be what Carl would need them for

Re: ISO: Diablo 30 heads

On 5/13/20 6:28 PM, Jay Jaeger via cctalk wrote: Carl, feel free to contact me off list. Has anyone heard anything from Carl? I'm a bit concerned since there have been no updates on his 1130 page for a while.

Re: Microsoft open sources GWBASIC

On 5/22/20 10:31 AM, Boris Gimbarzevsky via cctalk wrote: Recently found a movie Pirates of Silicon Valley which had some of early Microsoft history It is a work of fiction, and should be taken as such.

Early Nubus history

Did anyone ever do any research into the early history of Nubus, wrt Western Digital, TI or Steve Ward/MIT/Numachine?

Re: Early Nubus history

On 5/23/20 7:07 AM, Al Kossow via cctalk wrote: Did anyone ever do any research into the early history of Nubus, wrt Western Digital, TI or Steve Ward/MIT/Numachine? I was just thinking that it is interesting that WD is credited for inventing Qbus through the WD16 chipset and Nubus because

Re: TK50 cleaning and unloading issues, new thought:

On 5/23/20 9:16 AM, Chris Zach via cctalk wrote: try putting in a TK50 tape drive. no point, you're going to pull it out every time you try to read a tape to clean the head and tape path

Re: Microsoft open sources GWBASIC

You're right, but it contains the broad strokes of the story So did the TV series "Silicon Valley" and the book "Microserfs"

Re: Microsoft open sources GWBASIC

On 5/23/20 5:36 PM, ben via cctalk wrote: Runs... Ben. You can run, but we all will still think you're an idiot for these posts.

Re: TK50 cleaning and unloading issues, new thought:

On 5/23/20 5:58 PM, Chris Zach via cctalk wrote: Tapes are shedding that much yup, they are garbage. high probability that you will make the first pass across the tape and it will stick when it reverses direction for the second pass the only TK drive I will even use is the TZ30 1/2 height be

Re: Early Nubus history

On 5/24/20 8:20 AM, Michael Thompson via cctalk wrote: Ron Hochsprung(Apple) Ron was the senior engineer working on the Mac II with Mike Dewey. With 20/20 hindsight, the DIN connector should have been on the far end from the I/O fence on the Mac form-factor Nubus.

Re: Early Nubus history

On 5/24/20 8:34 AM, Al Kossow via cctalk wrote: On 5/24/20 8:20 AM, Michael Thompson via cctalk wrote:  Ron Hochsprung(Apple) Ron was the senior engineer working on the Mac II with Mike Dewey. With 20/20 hindsight, the DIN connector should have been on the far end from the I/O fence on the

Re: Early Nubus history

On 5/24/20 8:20 AM, Michael Thompson via cctalk wrote: George White went from MIT->Computer Automation->Western Digital->TI->Corollary->Intel. Corollary's cache technology was licensed by DEC and many others. So George would have been person connecting MIT WD and TI ..

Re: Microsoft open sources GWBASIC

On 5/25/20 11:51 AM, Adrian Graham via cctalk wrote: For proper niche see the RCA-1802 powered COMX-35. There is some talk of building a replica https://twitter.com/TubeTimeUS/status/1264585081659641857

Re: HP 9817 Usage

On 5/26/20 8:30 AM, TangentDelta via cctalk wrote: Hello! I have an HP 9817 and its accompanying 9133D disk drive unit. you may have more luck with HP questions at vinthp...@groups.io

Re: Microsoft open sources GWBASIC

Algol W was from Eroupe? Algol W was from Stanford, written by Wirth when he was there

Re: Microsoft open sources GWBASIC

On 5/26/20 6:39 PM, Al Kossow via cctalk wrote: Algol W was from Eroupe? Algol W was from Stanford, written by Wirth when he was there Actually, by Dick Sites http://bitsavers.org/pdf/stanford/cs_techReports/STAN-CS-71-230_Algol_W_Reference_Manual_Feb72.pdf

Re: Living Computer Museum

On 5/28/20 7:52 AM, William Donzelli via cctalk wrote: Dumpsters ain't cheap. s/Dumpsters/EWASTE disposal/

Re: VAX /785 docs

On 6/12/20 9:46 AM, Noel Chiappa via cctalk wrote: /785 docs are very rare (Bitsvers only has prints) so a VAX person should grab this and then scan them. done.. though I really shouldn't be spending money right now

Re: Apple 1

On 6/13/20 10:20 PM, jim stephens via cctalk wrote: Do they still have it? The Y-MP was replaced by a cray-ette in the early 90s In the end the main use for it was for doing backups with its tape robot

Re: Unknown Intel blinkenlight panel circa 1973

On 6/14/20 9:01 AM, Jon Elson via cctalk wrote: Any reason the picture is upside down?  Also, blurry, so it is hard to read the labels. I can't find the original eBay listing right now. The pictures were better on there

Aquarius (was Re: Apple 1)

On 6/14/20 9:36 PM, Cameron Kaiser via cctalk wrote: He didn't know of anyone doing much other with it either.__ I think it was bought before there was a unix type OS under the Macos. https://wiki.c2.com/?AppleCrayComputer They bought it to use to design the next Macintosh CPU I thought That

Re: : Unknown Intel blinkenlight panel circa 1973

On 6/15/20 3:40 AM, Dave Wade via cctalk wrote: Nice so appears to be 16-bit memory, with the ability to write either byte independently. The numbering on the address doesn't seem to match PDP-11 or DG NOVA . But the numbering doesn't seem to match. I wonder if some kind of mainframe... 16-

Future of cctalk/cctech

With Jay retiring, what are the hosting plans for these mailing lists?

Re: Future of cctalk/cctech

On 6/16/20 10:25 PM, Kevin Lee via cctalk wrote: Just keep the list here… sure. and when ezwind disappears?

Re: TU58 dump tool on Linux?

On 6/17/20 2:30 AM, Jan-Benedict Glaw via cctalk wrote: On Wed, 2020-06-17 10:29:08 +0200, Jan-Benedict Glaw via cctalk wrote: On Wed, 2020-06-10 21:06:40 +0200, Mattis Lind via cctalk wrote: Is there anyone that has already built a tool to dump TU58-tapes on a Linux machine? I have the dri

Re: Future of cctalk/cctech

I wonder what you don't like about "groups.io" Its pretty much a pure mailing list? Like all of the webby time-wasters, they don't have easy to mirror zipped archives, because they want to to spend time hovering around clicking on their sites. http://www.classiccmp.org/pipermail/cctalk/

Re: Future of cctalk/cctech

On 6/17/20 7:46 AM, John Foust via cctalk wrote: I'm most puzzled by the eager hosting volunteers who'd volunteer even before they have a full understanding of the job. The list is also something that has existed and will likely exist for decades, which is another reason not to trust an entit

Re: Future of cctalk/cctech

Images take up a lot of space and are best dealt with via links. Which rot over time. If you're going to create a permanent archive, you need to archive any attachments as well. http://www.vcfed.org/forum is a perfect example of messages full of link rot.

Re: Hercules SDLC/BSC interfacing project - want 3174-x1R

On 6/20/20 2:36 AM, Mattis Lind via cctalk wrote: If anyone has a type 1 3174 that does BSC and SDLC so I could test my stuff I would be very interested. Dave Wade just posted that he had some in the UK he was interested in getting rid of.

Re: VAX /785 docs

On 6/12/20 10:45 AM, Al Kossow via cctalk wrote: On 6/12/20 9:46 AM, Noel Chiappa via cctalk wrote: /785 docs are very rare (Bitsvers only has prints) so a VAX person should grab this and then scan them. done.. though I really shouldn't be spending money right now Just uploaded the

Re: FW: RSTS/E has just had its 50th Birthday...

This means RSTS/E, the Greatest Operating System ever, has just turned 50 years old. Now, we all need to dig out the "RSTS 50th birthday" paper from eons ago..

Re: Entrex 480 / Digital Computer Controls 116 in New Jersey.

On 7/8/20 9:28 AM, Mattis Lind via cctalk wrote: Not in best condition but probably worth rescuing. Maybe someone in NJ area that want it? Hopefully someone can get those Diablo 30s!

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

On 7/9/20 9:34 PM, Ian Finder via cctalk wrote: The correct SD-series replacement switch would be the 4B3A- It would be interesting to understand the failure mode. I wonder if they passivated the die correctly? 4B3A is a non-multiplexed contact closure type which is extremely difficult to f

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

On 7/10/20 9:45 AM, Al Kossow via cctalk wrote: 4B3A is a non-multiplexed contact closure type which is extremely difficult to find. Since it isn't very fancy, I wonder if you could make a new board with a modern Hall effect sensor? You just need a contact closure.

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

On 7/10/20 10:42 AM, Electronics Plus via cctech wrote: I have a number of keyboards with Micro Switch ST switches, but no SD. Does anyone still use old Memorex or Telex keyboards? YES! I have terminals w/o keyboards

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

What type of computer is your friend restoring? I don't think he wants to reveal that, and it shouldn't matter anyway. There are a couple of serious researchers out there who do useful work, here is what exists for the SD switch https://deskthority.net/wiki/Micro_Switch_SD_Series

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

On 7/10/20 2:14 PM, Al Kossow via cctalk wrote: There are a couple of serious researchers out there who do useful work, here is what exists for the SD switch https://deskthority.net/wiki/Micro_Switch_SD_Series the schematic of the 1660 microswitch keyboard can be found on page 235 of the

mid-80's DECUS newsletters and proceedings

I've started to scan a box of them that I've had sitting around since the 00's http://bitsavers.org/pdf/dec/decus/confProceedings/ I just uploaded the first one (Spring 1985)

Re: Getting files off a 7300--Mission accomplished

On 7/19/20 12:42 PM, Chris Zach via cctalk wrote: Now I have a big crate with "Convergent technologies" sitting in my truck, I'll have to figure that one out next. Also more Perq manuals and floppy disks. Probably a miniframe or mightyframe, considering the 7300 is a Convergent machine under

Re: Interested in Microport 286 System V?

On 7/20/20 9:43 AM, Cameron Kaiser via cctalk wrote: Hi, Warren. We've spoken a few times through the decades, but a have a friend with a delightful relic of PC Unix history: the original 286 UNIX port, well before SCO with Xenix. Bela is in Mountain View, CA so he's on the wrong continent for yo

T-11 evaluation module manual page A-92 added

fixed version at http://bitsavers.org/pdf/dec/pdp11/t11/EK-DCTEM-UG-001_DCT-EM_Users_Guide_Sep1983.pdf name changed to differentiate it from other copies on the web

Re: Comp.lang.forth: banned on google groups?

I wonder if it's time to set up some NNTP mirrors Usenet is a rotting corpse now. The right time to do this was decades ago now.

Re: paper tape archiving

On 7/29/20 2:14 PM, Bill Degnan via cctalk wrote: I am wondering if there any persons who have a systematic process they'd like to share for this kind of work. Find a program that will display and capture binary data on the platform, operating system and reader of your choice. Surprisingly,

Re: XX2247 Corporate Status

On 7/30/20 10:59 AM, Craig Ruff via cctech wrote: FYI: XX2247, LLC is now listed with a "delinquent" status by the Colorado Secretary of State's office due to a failure to file required reports back in 2018. That is not good. I hope Dave is OK. He lost his house in the big Colorado fires year

Burroughs L-series paper tapes

I've bought a small number of L-series tapes over the years that I finally read yesterday, mostly pass 1 and 2 of the assembler. Part numbers look like this. Oddly, they all seem to be wound backwards. The person-readable label is at the end, which will make it annoying to scan. 1-2101-049-01 1

Re: Burroughs L-series paper tapes

On 8/1/20 10:07 AM, Al Kossow via cctalk wrote: I've bought a small number of L-series tapes over the years that I finally read yesterday, mostly pass 1 and 2 of the assembler. finished scanning the labels. they are uploaded now to http://bitsavers.org/bits/Burroughs/L-Series

Re: Burroughs L-series paper tapes

On 8/1/20 3:04 PM, Mike Stein wrote: No descriptions? No idea which model L? Would be interesting to see the dumps, esp. the assembler. including cctlk, since that is where I posted the message pass 1 and 2 for the L-4000 and a combined SL5 tape marked "L8/L9"

Re: [GreenKeys] Omaha craigslist - Teletype RO printer - what model?

On 8/3/20 12:34 PM, John Foust via cctalk wrote: At 12:56 PM 8/3/2020, Nick England wrote: Looks interesting - I know nothing more https://omaha.craigslist.org/sys/d/omaha-heathkit-h19-terminal-vintage-ol

Re: [GreenKeys] Omaha craigslist - Teletype RO printer - what model?

On 8/3/20 1:36 PM, Al Kossow via cctalk wrote: model 37RO my mistake, it's a 33, 37 had a type block

Re: Burroughs L-series paper tapes

On 8/3/20 7:25 PM, Mike Stein via cctalk wrote: And what about your L9000 (or was it an 8000?) ? Did it also go to the LCM? Not many left, alas... we have an L-9000 https://www.computerhistory.org/collections/catalog/X1742.2001

Re: Burroughs L-series paper tapes

On 8/4/20 11:14 AM, Alan Frisbie via cctalk wrote: Al Kossow wrote: On 8/3/20 7:25 PM, Mike Stein via cctalk wrote: And what about your L9000 (or was it an 8000?) ? Did it also go to the LCM? Not many left, alas... we have an L-9000 https://www.computerhistory.org/collections/catalog/X174

RSTS Professional scans

almost finished with this http://bitsavers.org/pdf/dec/magazines/RSTS_Professional I'd like to gap-fill the rare RSTS Professional issues if anyone still has them. They are staple-bound so they can be scanned without removing a binding.

Re: Burroughs L-series paper tapes

On 8/6/20 1:07 PM, Stan Sieler via cctalk wrote: I was tempted...but it was a large machine, so I arranged for it to be given to the Computer History Museum (where I was, or became (timeline hazy) a senior docent). that is https://www.computerhistory.org/collections/catalog/X1742.2001

Re: weird rack unit

On 8/10/20 12:40 PM, Chuck Guzis via cctalk wrote: On 8/10/20 12:17 PM, Christian Kennedy via cctalk wrote: On 8/7/20 4:34 PM, Warner Losh via cctalk wrote: The OCO looks nice. Timing gear maybe? There was a discussion of this on the cctalk discord It was made for the USGS to study the e

Re: PDP-11 based Data Translation system on ebay

The only downside is the large quantity of non-DEC cards in there, which i’ve found to be rather difficult to find documentation for… I have a large collection of DSD documents on line. By the 80's DEC's storage devices were so inferior price/perfomance wise that there was a very large 3rd

Re: old data books?

On 8/23/20 6:29 AM, Matt Burke via cctalk wrote: You could check what's already available on bitsavers: I still have a few hundred data books scanned that I haven't converted to pdf yet. The biggest hole in the collection are Japanese parts, especially Fujitsu, before the mid-80's

Re: Looking for an IDE simulator

On 8/28/20 9:07 AM, Noel Chiappa via cctalk wrote: I've decided that I should see if there's an IDE emulator (using SD cards) available I could switch to. You may want to use PATA disk-on-module.

Re: Looking for an IDE simulator

On 8/28/20 9:07 AM, Noel Chiappa via cctalk wrote: After having a run of almost half a dozen IDE hard drive failures recently in a short period of time what brand/model drives have been failing?

Re: Looking for an IDE simulator

On 8/28/20 10:10 AM, Paul Koning via cctalk wrote: SD is a packet based storage device on a serial interconnect You really do need SMART monitoring on solid-state storage which may or may not exist in the adapters. SSDs will silently fail if they run out of sectors to write to. Also, I discove

Re: Seeking "MEGATEK" Sun 3/4 era (?) VME Graphics accelerator information and driver

On 9/13/20 2:48 PM, null via cctalk wrote: There is no terminal for it. Megatek started out making caligraphic displays for DG systems those evolved into the Wizzard series. I have one with a Unibus interface. They switched to raster in the late 70s eventually moving to standalone 3D color ra

Re: Seeking "MEGATEK" Sun 3/4 era (?) VME Graphics accelerator information and driver

On 9/13/20 3:44 PM, Al Kossow via cctalk wrote: Like all of the specialized 80's VME boards, it is going to be pretty much impossible to find software for them today. You'll note on bitsavers there is almost no documentation on 3rd party VME boards outside of Motorola. Th

Re: Care and feeding of some Lisp machines (TI Explorer and Xerox Star)

On 9/14/20 6:35 AM, Michael Engel via cctech wrote: Hi, for a planned exhibition, I am thinking of restoring two of the machines to working state again that are in storage here for decades: - A TI Explorer ("Sperry" labeled) and - A Xerox Star (no idea if ours actually ran Interlisp or one of

Re: Care and feeding of some Lisp machines (TI Explorer and Xerox Star)

On 9/14/20 9:00 AM, Josh Dersch via cctech wrote: One issue is weak picture tubes in the displays -- the monitors are powered on with the system and have no separate off switch, so they tended to get a lot of hours put on them. We had good luck with a tube rejuvenator on the one we restored at L

Re: Care and feeding of some Lisp machines (TI Explorer and Xerox Star)

On 9/14/20 9:00 AM, Josh Dersch via cctalk wrote: Media for the Explorer is another question that I'm hoping to answer soon. There are disk images from the Meroko emulator but my understanding is that they are incomplete. Bitsavers has QIC tape images but I have yet to try them. The interface

ISO Advantech Labtool-148C prgrammer wall wart specs

I just bought one of these thinking it ran off 110, but it uses a 3 pin wall wart. Does anyone have one of these and could tell me the voltages it supplies.

Re: ISO Advantech Labtool-148C prgrammer wall wart specs

On 9/15/20 7:39 AM, dwight wrote: It may be low voltage AC and ground or it may be +5V and a high voltage for programming and a return ground. You might look inside to see what the wires lead to. it is two DC voltages. I haven't traced out which one is 5v

Re: Old tape files needing review

On 9/14/20 1:25 PM, Chuck Guzis via cctalk wrote: Folks, I've got a fair amount of what would be classified as public domain tape data from old customer jobs wandering around. I don't have the time to peruse it in detail and was wondering if someone would like to take a stab at a sample and per

Re: ISO Advantech Labtool-148C prgrammer wall wart specs

On 9/15/20 11:24 AM, dwight wrote: I don't know the particular programmer's purpose you have. It is a 2000's era parallel programmer with downloadable FPGA configuration. I can trace it out and note the voltages on the filter caps as an estimate. I was just hoping someone could quickly tell me

Re: Care and feeding of some Lisp machines (TI Explorer and Xerox Star)

On 9/15/20 2:09 PM, Michael Engel via cctalk wrote: And what I thought were simple Tektronix vector terminals turned out to be two Tektronix 4404 machines and one 4406 - the 68010/020-based Smalltalk machines (which can also run Common Lisp). So more great stuff for our exhibition - and more m

Re: Care and feeding of some Lisp machines (TI Explorer and Xerox Star)

On 9/15/20 2:19 PM, Al Kossow via cctalk wrote: Please dump the firmware and image any floppies you have for this, especially the 020 version And take some internal/external pictures of the unit and the external disk box It should also be possible to image the hard disks, if they still work

Re: Care and feeding of some Lisp machines (TI Explorer and Xerox Star)

On 9/15/20 2:24 PM, Michael Engel via cctalk wrote: A simulator is in development. I found this web page by Seth Morabito: https://loomcom.com/blog/0120_the_next_emulator.html Is this the simulator that is under development? Best, Michael yes, one of them there is also a skeleton dr

Re: ISO Advantech Labtool-148C prgrammer wall wart specs

for the archives, the Labtool-148C wall wart is: +5V/1.5A ,+12V/1.5A it also has one of those funny 1/4" square usb looking connectors with the pins arranged in a equilateral triangle

Re: Notes on HP3000 WCS Microcode, Series 37 on ebay in Germany

On 9/16/20 5:30 AM, Rodney Brown via cctalk wrote: It's possible that one of the SYSWCS64 files may match the assembly listing on bitsavers, but that listing could allow guessing the architecture, assuming horizontal microcode and matching against the HP 3000 stack machine instruction set it imp

Re: 9 track tapes and block sizes

On 9/18/20 5:21 AM, Patrick Finnegan via cctalk wrote: I usually use tapeutils: https://github.com/brouhaha/tapeutils I should bug Eric about this, but the .tap files that library creates doesn't have the Supnik SIMH extensions I use it for all of the SCSI recoveries that I do on Linux machi

Re: 9 track tapes and block sizes

On 9/18/20 8:17 AM, Lars Brinkhoff wrote: I'm kind of maintaining that. where? Are you feeding the changes back to Eric or have you come up with your own no one knows about it except you version? the issues will be in the tap library from John Wilson

Re: 9 track tapes and block sizes

On 9/18/20 8:44 AM, Al Kossow via cctalk wrote: On 9/18/20 8:17 AM, Lars Brinkhoff wrote: I'm kind of maintaining that. where? Are you feeding the changes back to Eric or have you come up with your own no one knows about it except you version? the issues will be in the tap library

Interface Technology RS-432 manual

I don't remember if this was discussed here recently here or on the VCF site, I found one message here about it. Found the manual going through some test equipment manual boxes http://bitsavers.org/test_equipment/interfaceTechnology/Interface_Technology_RS-432_Microprocessor_Controlled_Data_and_

Re: Osborne 1 keyboard repair?

On 9/21/20 4:41 AM, Tom Hunter via cctalk wrote: I cleaned the now exposed membrane using Isopropyl alcohol - no change in resistance. https://deskthority.net/wiki/Membrane_keyboard#Spring_over_membrane you exposed the top of three sheets. the contamination/deformation is between the two oute

Re: To the 2901 bit slicers out there

On 12/28/17 12:43 AM, Holm Tiffe via cctalk wrote: > The Micorocode Assembler should be here: http://bitsavers.org/bits/AMD/AM29 manuals http://bitsavers.org/pdf/amd/amsys29/

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