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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!

      39510
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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.

      52997
      posts
  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.

      45881
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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!

      13029
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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.

      9855
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  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

      2671
      posts
    2. PCI Power Mac & Performa

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

      5881
      posts
    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…

      8965
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  6. Everything Else…

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

      Not really 68k Macs, but certainly Vintage!

      7388
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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
      posts
    4. Hacks & Development

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

      18535
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    5. Peripherals

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

      14523
      posts
  • Posts

    • Don't use cleaning disks on 400k or other single-sided drives or you'll damage/dislodge the pressure pad and render the drive unusable. The pressure pad is a little felt pad that, on the 400k Sony drives, is on the arm on the top of the drive directly above the head. This pad presses down on the disk surface to ensure full contact with the head. If this pad is missing, it will not generate enough pressure to properly read the disk and may scrape up the top of the disk causing a lot of debris to be generated. Cleaning these drives requires disassembly and manual cleaning of the head with a lint-free swab and special cleaning fluid, but you can get away with carefully using a cotton swab and 90% iso alcohol. 70% iso also works in a pinch. You'll also want to check that the pressure pad is still properly attached. If it isn't it may be in the drive somewhere.   Even though your disk media may not look bad, it may be heavily shedding particles and/or binder material all over the heads of your drives. I probably wouldn't try using it again.
    • @joethezombie Would love to be the first to purchase a 128MB set once you have them ready.  I have a bit of extra cash right now.
    • Progress...   I took the keyboard apart and found an interesting hack. The '*' key's stem was broken off, the keycap sitting in the broken switch with cleverly bent pins glued to the keycap keeping it there, a spring making the key feel like it worked but of course it did not! I did not have a spare salmon Alps switch but I did have a spare white one so easily fixed.   I designed and printed a plastic mount for the 5G SCSI HD I had in a drawer. The original drive works, the big drive will be faster. I am not sure if what came with the machine is original or not but the two mounting holes do not line up properly with the holes in the HD at all. The steel has a different look to it than all the other steel parts inside. A number stamped on the bottom is "805-5066-08". Right number, but ugly.   Also 3D printed a programmer's switch. They are not that expensive but shipping anything from USA to Australia right now, unless it is by expensive courier, takes about 10 weeks.   Then the Mouser order arrived and I replaced every electrolytic cap on the logic board, analog board and in the Astec power supply. Mac is happy, clean and the CRT display is rock solid.   Next I went to plug in my monitor to see just what the Radius card can do on a 21" CRT with my new HD15-15 adapter... and found that I bought the wrong adapter. I got HD15M to 15F, not HF15F to 15M. So if I ever need to plug an old Mac monitor into an old PC I'm sorted, but now I have to wait for my new, new HD15-15 adapter.  
    • @Trash80toHP_Mini  Not quite yet.  I do have three arcades:  Joust, Centipede, and Defender.  Pinballs are expensive and difficult to repair unless you know what you're doing.
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