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  1. C

    What to do with a 68 K-based CPU board used in the 1990' for piloting a bank of modems.

    Looks like there isn't much on that board other than some serial chips, a RTC, RAM, ROMs and the CPU. It must have acted as a serial line peripheral controller for another computer, so the resources to use it directly as a SBC will be limited to that set of features. You'll have to reverse...
  2. C

    QProbe 2023

    Found a pair of MSV11-JE boards for a reasonable price and a 11/83 cabinet kit SLU to round things out.
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    QProbe 2023

    My 11/83 only has 3 MiB of Qbus memory unfortunately, I had an 11/73 M8192 CPU card in there originally and was lucky to get one of those NOS 11/83 CPU cards a while back and had an 18 MHz capable J11 chip to put into it. Everything I've read suggests it is possible to use both PMI and Qbus...
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    QProbe 2023

    The information linked in the original post describes the capabilities. You can set a raw monitor mode where the QBus signals are passed through to the LEDs, or attach logic probes to the QProbe board via headers.
  5. C

    QProbe 2023

    Ignore the fact it claims to be a Vax. Apparently I can't insert a movie here, this is a link to it on Google Drive: https://drive.google.com/file/d/1-aJ6GivDW9fMYw1dxd9Q_QGfPghAHAlp/view?usp=drive_link The roaring sound is mostly the forced air furnace, the vent is right below me taking the video.
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    QProbe 2023

    I finally finished the build and installation of my QProbe 2023 into my BA23 housed 11/83. Despite thinking I had been careful when installing the reset momentary switch, I managed to install it reversed and had to haul it out again to fix that. To help hold the LED panel sled in position, I...
  7. C

    DEC AXPvme questions

    Forgot to follow up years ago. It depends if the VxWorks image was configured to enable the command interpreter on a console port or not. If it does then the commands available depend on the VxWorks version and if the command interpreter(s) are compiled into the kernel image. For VxWorks 6.9...
  8. C

    Apple //gs restoration and AppleColor RGB (A2M6014X) monitor repair - advice very welcome!

    You could test the PS with dummy loads for a while while you have it apart.
  9. C

    Fit a printer to a vintage Varian Spectraa 10 plus Atomic absorption spectrophotometer

    I second this, I have one from the 90s that has been useful on a number of occasions. Of course if you need another piece of vintage equipment HP made a nice serial protocol analyzer series starting with the HP 4951A.
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    Vax 4000 Model 108 - console won't accept any input, reset of some sort possible ?

    Is this a system that if a video card was installed it might change the console settings to point to the graphic display and an attached keyboard? Does it have a way to reset the settings to default?
  11. C

    Former Alpha HPC TOP500 Cluster with Myricom Myrinet and Digital Unix / Tru64 -- any experiences here ???

    At NCAR we had a Cray T3D system that was more of an appendage to a Cray C90 system. https://www2.cisl.ucar.edu/ncar-supercomputing-history/t3d
  12. C

    Good inventory program to keep track of my DEC parts and stuff

    I know you are looking for already written, but Python + Sqlite3 are pretty simple to get going, you probably won't need anything fancy. Export/Import from CSV pretty easily and possibly Excel XLSX with openpyxl or something similar.
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    QProbe 2023

    How fun. Now to decide if my 11/83 in the BA-23 will fit the drive bay panel...
  14. C

    Unix printing problems

    Does the printer support raw ASCII text sent to it or does it want the print job sent in some other format? I guess you haven't told us what type of files you are trying to print.
  15. C

    About re-producing PDP-11/70

    Just procure a J-11 chip and build your system around that?
  16. C

    Kaiser & Damm Qbus memory management boards for PDP11??

    Do they only use the QBus for power? Doesn't look like many of the QBus signals are obviously connected in the pictures.
  17. C

    OS-9 on SWTPC?

    At least it was stable long enough for nikola-wan to fetch the files. For those who see this in the future you'll need to use the host name.
  18. C

    OS-9 on SWTPC?

    I just tried, it worked for me, ftp.dreesen.ch has address
  19. C

    211bsd games hack doesn't work?

    It behaves the same way for me, I've never actually tried playing it. The source and some readme files can be found in /usr/src/games/hack.
  20. C

    HP85 Thermal Printer question

    If you haven't found it yet, the https://groups.io/g/hpseries80 list has lots of information and people who are Series 80 enthusiasts.