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  1. Important Information

    1. The 68kMLA Forum Rules   (10106 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!

      2671
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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!

      13720
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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!

      1066
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    3. Software

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

      17461
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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!

      14523
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  • Posts

    • The problem with the SIMM expanders is that you're increasing the number of power-sucking chips by a quite a bit in addition to increasing electrical loads on the memory circuits. I wouldn't likely use them outside of a PC since they often have more power to spare and are more tolerant of weird memory configurations. Plus they're really tall so wouldn't fit well in a compact Mac or most of the II series or similar machines with limited RAM clearance. That said, I got a set of 72-pin SIMM-to-168-pin DIMM expanders in a box of random stuff once. Never tried to use them but they may work in old PCs that can use unbuffered EDO DRAM DIMMS.   Since some people are working on remanufacturing SE/30 boards anyway it shouldn't be too difficult to reshuffle some wires to accommodate 72-pin SIMM sockets in place of the 30s. Maybe flip the ROM SIMM 90 degrees and scooch the FPU over a little? Or maybe just use 4 72-pin sockets instead of 8 to keep things mostly in their original orientations? 4 sockets will still yield 128MB. 
    • Can you tell just by the serial number if an Apple Lisa mouse was made for the Lisa 1 or was made during it’s time? They’re probably all look the same for all versions of Lisa but I just want to know. 
    • The paths open up in AI9, but the nice type devolves into simple paths. This is doable, below is only a screen shot. Components and connectors on yours are missing, bitmap overlays? line weights and colors are easily fixed. Which pages line up in what order to left and right of this page?       Three layers showing control signals on one layer with data and address buses on the other two for viewing individually might be helpful?
    • Made a major purchase that I wanted ever since I first heard about the 550c from the Cult of Mac book years ago -   I picked up a Powerbook 550c with the box and manuals for a grayscale 520 for $350 shipped from Japan.   It had some minor cosmetic damage to the screen from a leaking PRAM battery ("vinegar syndrome"), unfortunately, but otherwise is in pretty great shape! Already upgraded it to 40MB of RAM and the original 750 MB HD works great.    
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