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  1. alxlab

    Reverse Engineering the Macintosh IIcx Logicboard

    Dang man. You did that pretty fast. I actually have a bombed IIcx that this would actually be useful for. That would be quite the project to transfer all the good parts.
  2. alxlab

    Mod: Quadra 660AV 2 MB VRAM Upgrade

    Dude that's sick! I wonder if there's enough space between the boards VRAM chips to use a board with SOJ sockets on the bottom and the extra vram on the top. Would still need to solder some extra wires though. Three if I'm looking at the picture correctly, Alternatively would replacing the...
  3. alxlab

    XLR8 - Jumper Settings for a Power Computing 180C

    Yeah that's nice having the full chart. In the end I couldn't find my manual >.<
  4. alxlab

    WarpSE: 25 MHz 68HC000-based accelerator for Mac SE

    Maybe it would be possible to get a license since I found this page yesterday since I was curious: https://amitopia.com/free-68080-fpga-core-license-by-apollo-team-is-great/ Here's a forum post that goes into further detail about using their 68080...
  5. alxlab

    WarpSE: 25 MHz 68HC000-based accelerator for Mac SE

    Yeah actually talked about that at the beginning of this post but it's a whole other topic. Last news I read for PiStorm is that it was working except for SCSI. If I remember correctly, Zane's thoughts were some of the timings were probably off in the CPU emulation right now which is keeping it...
  6. alxlab

    Macintosh SE or SE/30 Fan Bracket

    Here's a fan bracket I made for the Macintosh SE or SE/30, It will work with the horizontal and vertical CRT neck boards. The fan is attached with standard fan screws so any 60mm fan that is 25mm thick or less should work. The bracket itself is attached using stand 6-32 screws commonly used for...
  7. alxlab

    Macintosh Portable RAM Expansion Card Reference Design

    Just added this to my Reference Design Library on github. Enjoys! Macintosh Portable RAM Expansion Card This is the Kicad 6 schematics and PCB with connector to serve as the basis to make a Macintosh Portable RAM expansion card. The PCB was designed based off the dimensions shown on page 450...
  8. alxlab

    Documentation for DB15 to VGA adapters

    The documentation you in github was very nice! Never seen it before. Yeah a version with just multisync would probably fit most people's needs nowadays. Was planning to make a pcb revision for just that as well. Easiest to make! Just to connectors! I still need to try portrait mode on my...
  9. alxlab

    Documentation for DB15 to VGA adapters

    @Melkhior Just in case you didn't see this as well: https://tinkerdifferent.com/threads/mac-db15-to-vga.449/ I actually made 3 new revisions of pcb. One is still all through-hole components with the diodes moved to the side for easier switch placement. The second is SOD-323 for the diodes and...
  10. alxlab

    Identifying and confirming fake 68040 CPUs (especially the L88M mask)

    Yeah really sucks that's there's a lot of fakes out there now. Bought from this seller on ebay: Basically I see it as a + if they're dirty and not cleaned. Higher chances that the're direct pulls that weren't tampered with. The one's I bought ended up being all XC. The print on something...
  11. alxlab

    SE-VGA

    Hey techav glad you decided to post here! I've been following this project and your accelerator project and their both awesome :) I had a question regarding screen mirroring on old BW Macs that isn't entirely related to your approach for mirroring but maybe you would have some thoughts on. I...
  12. alxlab

    XLR8 - Jumper Settings for a Power Computing 180C

    I'll try to go over to my parents to get my XLR8 Zif Carrier manual tonight.
  13. alxlab

    XLR8 - Jumper Settings for a Power Computing 180C

    Source: https://www.manualslib.com/manual/2066838/Xlr8-Mach-Speed-G3-Zif.html?page=2
  14. alxlab

    WarpSE: 25 MHz 68HC000-based accelerator for Mac SE

    The 68HC000 is a different model. It's actually used in the Macintosh Portable. No FPU or MMU. It has the same 32-bit capabilities as the original 68000. Here's the description from the MC68000 reference manual: "The primary benefit of the MC68HC000 is reduced power consumption. The device...
  15. alxlab

    WarpSE: 25 MHz 68HC000-based accelerator for Mac SE

    This is really exciting :) Really looking forward to possibly trying it out when ever it's ready to test.
  16. alxlab

    3.5" Hard Drive 50-pin SCSI Reference Design

    Yeah that was bit of a wild west for drive design back then. Thankfully they made standards over time.
  17. alxlab

    3.5" Hard Drive 50-pin SCSI Reference Design

    3.5" Hard Drive 50-pin SCSI Reference Design Here's the reference PCB and case designs for a 3.5" hard drive that's 50-pin SCSI. This can be used to have the 50-pin and power connectors in the exact same position as a standard 50-pin SCSI hard drive. The case also has the proper mounting holes...
  18. alxlab

    SuperDrive (floppy) maintenance

    Here's the gear @Stephen made https://www.shapeways.com/product/83RHF6KS2/premium-eject-floppy-drive-gear-x20?optionId=233884059&li=marketplace They are a lot cheaper than the Ebay ones. Some of the Ebay auctions are basically his model from Thingiverse sold at crazy prices. If you have an SLA...
  19. alxlab

    Add Thread Links to Photos displayed under "Latest Profile Posts"

    Yeah had the same initial reaction. Gotta click on the ... to actually expand the profile update. It would be a better user experience if the preview and ... would expand profile update.
  20. alxlab

    WarpSE: 25 MHz 68HC000-based accelerator for Mac SE

    Really coming along. The ESP32 just tucks in there neatly. They $3-4 should be that bad compared to the total cost of the whole thing right?