Search results

  1. M

    FS: Radius Rocket Clone "Prototypes"

    That was already my plan :) For my personal IIfx build i'm working on I want a internally mounted SCSI drive for the rocket so I was always planning on adding a internal socket The SCSI booster I have for cloning is compatible with both the GAL and ASIC based stage 1 rockets, Both the GAL and...
  2. M

    Macintosh IIci 5V to GND resistance?

    Though I don't have a board to hand to measure a exact value I can also confirm sub 20ohms between 5V and GND is totally normal on the IIci. This threw me the first time I saw this but I have verified it against multiple boards and it's totally normal
  3. M

    FS: Radius Rocket Clone "Prototypes"

    You would think that, and that was my first idea however the way the rocket is designed it actually isn't. 72pin simms need 2 RAS signals (one per rank) and the rocket only generates one for all 8 30 pin simms which means only single rank simms would work, this isn't the end of the world however...
  4. M

    FS: Radius Rocket Clone "Prototypes"

    That's because it was a secret project...... :) Nah it's only because I find writing project threads quite tiring so tend not to do it these days, I did post some status updates both on here and 68k with pictures of the board while it was in progress I believe that is correct, at least I...
  5. M

    Macintosh IIci Logicboard recreation

    Personally I hand solder them, drag soldering the QFP's and soldering the PLCC's pin by pin. My experience is that trying to use a stencil and past generally creates more problems than it fixes I'm not sure where you would find generic stencils but if you want to go that route you could always...
  6. M

    Macintosh IIci Logicboard recreation

    For 5V all slots are just connected directly to the internal 5V plane in the PCB, there is no kind of current monitoring / limiting at all so you should be good to exceed the "rated" current if your PSU is capable of that. The only thing I would really be concerned about is what the current...
  7. M

    Just a few traces [ATTACH]

    Just a few traces
  8. M

    Reverse Engineering the Macintosh IIcx Logicboard

    Good question! The short answer is usually you don't, the IIcx is only a 4 layer board with the signals on the outside and power planes in the middle so you only really need to trace the outer layers, the power planes can just be traced out with a multimeter without too much work. Splits in the...
  9. M

    Thanks :) Your board is the newer and more common version that uses the custom ASIC, this one is...

    Thanks :) Your board is the newer and more common version that uses the custom ASIC, this one is the original model which uses lots of GAL's to do the same thing, as far as I am aware they are functionally identical otherwise
  10. M

    A new project.... [ATTACH]

    A new project....
  11. M

    Macintosh IIci Logicboard recreation

    Gerbers and schematic are now on GitHub https://github.com/max234252/Macintosh-IIci-Reloaded As with my other designs these are provided under a non-commercial licence but if you are a repairer and want to offer transplant services (or have any other commercial use in mind) please contact me...
  12. M

    Macintosh IIci Logicboard recreation

    Boards have arrived and been tested! These have a couple of modifications you may be able top see: There is now a ATX connector behind the NuBus slots for people who wish to replace the original PSU, just keep in mind this will prevent most full length NuBus cards being installed in the left...
  13. M

    More new shiny things: [ATTACH]

    More new shiny things:
  14. M

    Macintosh IIci Logicboard recreation

    Boards are on order! I have ordered 30 boards, all with the bottom side birdseed populated. Boards are purple with a ENIG finish The good news is that although the order as a hole was pretty expensive the per board cost is actually lower than I expected so it's looking like the final price will...
  15. M

    Revisions done, will give it one final once over tomorrow evening then send it to JLC :) [ATTACH]

    Revisions done, will give it one final once over tomorrow evening then send it to JLC :)
  16. M

    Recreateing the Apple TechStep

    Time for a update (And not just because there is a TD Livestream tomorrow and I want to show the new version off....) The most obvious difference is that the 18650 is gone from the keypad board which allows the keypad to be centred like the original unit, the 5v boost regulator has also been...
  17. M

    Macintosh IIci Logicboard recreation

    I was hoping to get these ordered this month but my projects budget ended up being eaten elsewhere All being good they will be sent off for production at the beginning of next month Once I have the boards and have verified the revised version is OK I'll contact everyone who has expressed interest
  18. M

    Macintosh IIci Logicboard recreation

    Shipping to the US form the UK is a bit pricey but not too bad I will be posting the design on github once this run is done and I have verified the revised board works fine (Very unlikley it won't but I always like to check before releasing a design into the wild) so if you do prefer to wait I'm...
  19. M

    Macintosh IIci Logicboard recreation

    Just been getting a feel for how many to order, Will proably be ordering the boards the next week :)
  20. M

    Macintosh IIci Logicboard recreation

    I haven't sent the boards off for production yet so I'll add you to the list :) I may also still have some IIcx boards, I'll have a look tomorrow and let you kow