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    1. The 68kMLA Forum Rules   (10119 visits to this link)

      To quote vintage Apple manuals: "Read Me First!"

  2. Community Connections

    1. General 68kMLA News & Stuff

      What's going down in the barracks.

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    2. Conquests

      Discuss your latest vintage Mac finds!

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    3. Trading Post

      Feel free to trade all of your Mac goodies here with all honest intentions. The website provider assumes NO liability, so buyer beware! Please see this topic for more information.

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  3. Projects & Hosted Forums

    1. RetroChallenge

      What can you do given only one month and strictly "retro" hardware? Find out with RetroChallenge!
      http://retrochallenge.org/

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    2. 68kMLA Wiki

      The creation and maintenance of the 68kMLA's information repository.
      http://68kmla.org/wiki/

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  4. 68k Model Forums

    1. Compact Mac

      Macintosh, 512k, SE, etc.

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    2. Mac II, Quadra & Centris

      Just think, having a Quadra 950 in 1992 would be like having a Mac Pro today… except with more slots, more expandability, and on-board SCSI!

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    3. 68k LC & Performa

      Ah, the consumer computers!

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    4. 68k PowerBook

      From the Portable to the 190cs.

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  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

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    2. PCI Power Mac & Performa

      The PPC comes of age and adopts the industry standard expansion slot.

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    3. G3/G4/G5 Power Mac, iMac & eMac

      From the Beige G3 to the quad-core G5, via various iMacs!

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    4. PPC PowerBook & iBook

      All that power in a laptop? Never…

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  6. Everything Else…

    1. Apple I, ][, /// & Lisa

      Not really 68k Macs, but certainly Vintage!

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    2. Newton

      The best PDA ever finally gets its own forum!

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    3. Software

      Includes system stuff, productivity, emulation, design, and games for pre-OS X Macs!

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    4. Hacks & Development

      Yes, it's back! Hardware hacks/modifications and software development for Mac OS.

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    5. Peripherals

      Anything you can hook up to your Mac or stuff into it as an interface!

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  • Posts

    • Yes in 2012, but to be honest very few services were still available at that date.   Yes again:   https://medium.com/@cq94/re-creation-annuaire-electronique-minitel-fb59a843e86c   Even using the real thing   https://www.journaldulapin.com/2017/09/24/serveur-minitel/   The Minitel was said to have been an inspiration for the Macintosh (the CRT is the same size, casing has a proper handle and vents are all around)   I have got a Djinn by the way, cute but useless...
    • I mean that looks kind of like a common mode filter thing, but what on earth is the earth wire also doing wound around it?
    • the green is the ground wire which in your case is connected directly  
    • Yeah, GEMDOS already does this.  It's one of the things I was planning to fix.  It also hardcodes the hard disc to use FAT12 which is perhaps also not ideal.   I was slightly afraid this was going to be the answer.  Oh well, time to learn!
    • Following the SE/30 schematics it should be possible to implement the same simple logic into the Mac II logicboard. The independent RAS lines going to the SIMMs originate from the same two RAS signals coming out of the GLU gate array just like the SE/30.   Everything that should need to be done on the Mac II is grabbing those signals somewhere from the logicboard and feed them into a GAL:   -R/W - UG7 17/GLU 52/ -RAS.A - GLU 78/UH14 2&4 -RAS.B - GLU 79/UH14 6&8 -CAS.LL - GLU 80/UH14 11 (original) or 5 (buffered) (all the CAS signals should be the same, otherwise the SE/30 approach would not work and it's using the same GLU gate array)   Then we remove R19 and R23 on the back of the logicboard to cut the traces between the buffer UG7 and the /WE pins on the SIMM sockets. We will have to inject our new /WE signal either into two vias next to the battery or next to UG7 where the two resistors have been before.   In the GAL we just make sure /WE to the SIMMs only gets activated when the accompanying RAS signal is active and keep it latched as long as RAS is there, no matter what R/W is doing from then on.   This hack is completely reversible, just remove the wires you tapped into places and solder the two resistors back on. I am going to try this on a Mac II logicboard I just got after I finish recapping it and will report back.
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