Search results

  • Board Nominations
    Nominations have now closed and the results are available here.
  • Hey Guest, MARCHintosh 2026 is upon us. Check out community projects, join GlobalTalk, and have fun!
  1. L

    How Does One Explain The Difference In The Size & RAM Usage Of Modern Operating Systems?

    Some legitimate causes of bloat: more pixels and colors. Icons and graphics are a lot bigger and there are more of them. There are often multiple resolutions now and they're all true color and often with alpha channels. For example, video RAM used for the whole screen on a Mac Classic is under...
  2. L

    Surprise haul

    I left the house to pick up a Powerbook G4 off Craigslist and stumbled onto a treasure trove of old stuff from a friend's garage. The headliner is a Lisa with a Profile drive: We couldn't find the top case for the Profile drive nor the cable and controller card, yet. The Lisa mouse was also...
  3. L

    BlueSCSI Toolbox

    I thought I saw that in git already. It probably doesn't work but it looks like somebody started down that path
  4. L

    iMac G4 Appreciation Thread

    A quick glance through everymac.com suggests that the lamp shades only supported VGA output, so you'd need an active (read: expensive) VGA to DVI(or HDMI) convertor to then feed into the DVI to ADC adapter.
  5. L

    BlueSCSI v2 Pico - Low cost, open hardware, fast SCSI device!

    Awesome I just spent some time perusing the code to see how you guys are making use of the RP2040 PIOs, because what better way to spend an evening. I gotta say, that is a very nice and approachable codebase. Everything is clean and clear, even the PIO code which such a different paradigm from...
  6. L

    Fast EtherNet NIC on FireWire interface? Possible, Practical, Silly Notion?

    Apple has their IP over Firewire protocol support but I don't remember if classic MacOS supported it. If it does then it's kinda already done, you just have to tether to a newer Mac.
  7. L

    Weird storage issue

    oh, that probably should have been `100%` instead of `limits`. It might work better when booted into Sorbet. I think I did my restore from Leopard instead of Tiger so it might have worked better for me.
  8. L

    Weird storage issue

    Hmm, it didn't resize the filesystem when after it restored the image, odd.. Try a: diskutil resizeVolume "/Volumes/Sorbet Leopard R15" limits in terminal
  9. L

    [Help Needed] My work on an Apple Studio Display M7768 (The Transparent ADC CRT)

    Hmm, I wonder if the init code could be divined by examining the ROM of an compatible video card using something like https://github.com/openbios/fcode-utils . The ROM might define a set of DDC/I2C OpenFirmware commands that then might be possible to look at what data they're called with.
  10. L

    Reproducing the Lisa 2 Card Stack: The CPU Card

    I've got some simpler code that should do the black and white classic Mac mode (512x342) that you an use as a reference. I found the PicoVGA code hard to follow because of the complexity of handling multiple modes and color depths. https://github.com/crackmonkey/macvid There are basic...
  11. L

    Christmas Buffet Foods

    In Arizona we make them very similar except with beef.
  12. L

    What are these plastic bits from?

    Picking through an old tool briefcase a former coworker left behind I found these bits of plastic in a baggie. I suspect they're from an old compact Mac, but which one/ones? I'm gonna make a 3d model of the buttons before I do anything else with them.
  13. L

    misshapen CRT image

    I'm looking for some wisdom from those who have meddled in the dark arts of CRT repair. I've got an Osborne 1 with a Nuevo 80 column card but the CRT is a little off. It works, but once it gets past mid-screen the CRT seem to rush to finish the frame as evidenced by the small "Insert disk" line...
  14. L

    Any idea what this is?

    Hmm, definitely not repetitive enough to be a RAM array. I'm gonna go with a paleolithic ancestor to modern FPGAs, where the "field programable" part means soldering all those jumper wires between different logic gates.
  15. L

    Asante MC3NB Rev G Nubus NIC - getting 10Base-T working

    A guess would be that it's auto-detecting the coax connection. You'll just have to rewire everything to thin net ;) It's not clear how the auto-detection logic works, and there aren't any suspicious aluminum electrolytic capacitors in sight. Maybe one of those ceramic disc or tantalum caps...
  16. L

    Please Help Us to Restore the Vintage Computing Federation’s IBM 1130

    Neat. Has anyone made videos going over the history and use of these beasts?
  17. L

    Osborne 1 Bluetooth keyboard

    I got my first attempt at PCB designing back from PCBWay and it mostly works! I just submitted a V2 design to be made after realizing the unreliable behavior on one column of keys was because the Feather I'm using has the voltage from the LiPo socket routed there so you can monitor it, but in a...
  18. L

    Macintosh II - SE/30 ROM Documentation Project

    The GitHub app really smooths things out for people not used to dealing with Git every day. Another thought for this information is an address snooper. For machines using ROM SIMMs it seems easy enough to get the address of the code being run, maybe you can do the same by clipping into ROM...
  19. L

    Analog board (video) testing without logic board

    Nice. Looks like they used the BeagleBone's PRU which is similar but more capable than the Pico's PIOs. Pi Pico's are about the only Pi's you can regularly get your hands on right now, I have two on a USPS truck out for delivery today.