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  1. maceffects

    New CPU Accelerator options for 68K Macs?

    @Frobozz Would I buy one for $500, yes!  Do I have the skills needed to do much beyond basic PCB reverse engineering and assembly, no.  Would I be willing to do a Kickstarter in partnership with someone, yes.  My site gets 1000-3000 unique views per month.  Not tons of orders at all, but unlike...
  2. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @quorten I'm a late comer to the party so I'm not sure what existing information you have.  Can you repost so we can all have a fresh look?  I will admit right now that I'm an accountant not an electrical engineer so I'm best suited for grunt work rather than careful electrical analysis, but...
  3. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    I'd be in if we can get some others involved.  I believe @asicsolutions will be busy this weekend.  I am free except 5-9pm (CST) on Saturday. 
  4. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @Kai Robinson OK I got it use 2.54 pitch headers I bought mainly for the headers on the side as spacers to clear components.  Perfect!  I just wanted to make sure since I'd hate to spent a long time soldering dozens of 84-pin connectors, haha.  Let us know of those parts turn out to be genuine. 
  5. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @Kai Robinson are the pins going to be long enough or will I need a spacer?  Sorry for asking so many questions, I just want to have everything in place so I can solder it once it comes and send it off.
  6. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @Kai Robinson I have a friend who has a good one in their battery damaged logic board.  Are you sure a digital microscope will get the gates?  In any case, PM me where to send this one to decap and do die shots.  Unless, anyone has a dead one, which I've never seen.  I'd assume it would be...
  7. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    I'll ask around, it may be that I can find someone to do one or the other, but not both given that we aren't prepared to pay thousands.  That said, I'd even be willing to send a stock BBU for medium resultion pictures.  I'm not prepared to lose the Brainstorm for a crap decapping.  I'll ask one...
  8. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @techknight here is a cheap service in China: https://dirtypcbs.com/store/decap But, if I'm not mistaken, if we can't see the gates it doesn't serve much purpose. 
  9. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    This can definitely be done but if I'm not mistaken it will need a scanning electron microscope and then someone to decode what is found.  I work at part-time at a university and they don't even let me near the good toys like that...  Though if anyone has access and knowledge to do so, that...
  10. maceffects

    Duo type 3 battery

    I'm going to follow this thread as well.  I'm keenly interested in what replacements you'll find for my Color Duos. 
  11. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @Phipli this one has the 2.5 newest Firmware. So if I copy that it should be good. The PDS card looks really strange. I hope it’s though hole but it maybe well be SMD.  In any event I’m sure I can reverse engineer that part if anyone wants to tackle the BBU.    @quorten I must admit when...
  12. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @ScutBoy thank you so much for your help!  I’m happy to pay whatever the charge was. I’ll start work on the PDS first as I think that will be easiest. Meanwhile, I’m probing around China to see if someone is skilled enough to reverse engineer the BBU reasonably cheap.  I also found a nice stock...
  13. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    Thanks @Kai Robinson I'm hopeful that with your breakout someone can reverse engineer that and I'd clone the PDS 16mhz upgrade board.  I'd assume it needs a logic probe but that is, I'm afraid, outside the scope of my knowledge. 
  14. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    Our very own @ScutBoy happens to volunteer there and if the other individual doesn't snatch up this machine I'll see if he can help us out.  I think with the PLCC 84 breakout board designed by @Kai Robinson I'm building, it should be able to be cloned.  I suspect the PDS card is also part of the...
  15. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @Phipli I forgot about the Brainstorm!  That would be a brilliant thing to reverse engineer!  A bit out of my domain, and obtaining one would be very difficult.  Thanks for sharing. Update: I replied on the post to see if I can obtain that SE board so it can be reverse engineered.  I am already...
  16. maceffects

    Mac SE/30 PDS & Power Questions

    @Ariffer thanks for your encouragement.  It is still a work in process that will take a fair bit of time, but I have a really great FPGA guy who is making this project come to life.
  17. maceffects

    Do I need to replace my flyback?

    @JDW I actually explored the idea of making new cheap flyback transformers in a low quantity of 100 units.  Here is a thread where it is discussed more in detailed:  Long story short, it required too many custom parts that are no longer produced.  It could be done if additional parts were...
  18. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    For completeness here is a SE/30 board to compare (image credit @360alaska). 
  19. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    Oh, for the record the BBU applies to the SE not the SE/30.  Hopefully, it will still be of some use. I’d love for the ADB to be known as well one day. I plan on eventually doing a replica AEK with ADB/WiFi. 
  20. maceffects

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    @Kai Robinson thanks!  I’m going to order a few PCBs and parts so I can build a couple.  
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