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  1. Important Information

    1. The 68kMLA Forum Rules   (8863 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.

      43690
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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!

      12520
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    3. 68k LC & Performa

      Ah, the consumer computers!

      7569
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    4. 68k PowerBook

      From the Portable to the 190cs.

      9181
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  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

      2597
      posts
    2. PCI Power Mac & Performa

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

      5804
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    3. G3/G4/G5 Power Mac, iMac & eMac

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

      13451
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    4. PPC PowerBook & iBook

      All that power in a laptop? Never…

      8811
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  6. Everything Else…

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

      Not really 68k Macs, but certainly Vintage!

      6990
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    2. Newton

      The best PDA ever finally gets its own forum!

      1019
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    3. Software

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

      17021
      posts
    4. Hacks & Development

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

      17643
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    5. Peripherals

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

      13952
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  • Posts

    • It's a beauty. I'm afraid I've fried something delicate though. 
    • Hard to say without knowing what disk you are talking about. Any picture ? Brand ?
    • Simply put: I know that Classic Rev, A and Rev. B boards are not compatible with the two different earlier and later style CRTs. The Classic II I picked up is a later model that has a B board. I figured only the connector was different. Turns out that is not the case: about four capacitors are of different values, and some of those are not even the same listed number. For instance, CL1 on a Rev. A board is 10 µf, 50 V, whereas on the Rev. B it is 1000 µf, 25 V. Big difference, not just beefier component. CP31 from a Rev. A...doesn't even exist on a Rev. B. These are just two examples. I had no idea they were that different.   As an aside question, those film capacitors, CL6 and I believe CL7...anyone know their values? I get no hits from the writing on them and am not sure if they need to be replaced (my ESR meter is useless if I don't know what the ideal value is).
    • Your 400k disk probably lacks boot blocks.  To write boot blocks to it, you need to copy the System file from a bootable disk onto that disk.  I’m not sure if System 7.1 will do that for a 400k disk (it may .... I’m just not sure).  However, you can almost certainly start your SE/30 with a System 6 boot floppy, copy a System file onto your 400k disk, then boot into your System 7.1 HD and copy all the files you want over.  Your 400k disk should then boot fine (not on the SE/30, obviously....).   Nice treatment from dog_cow here:  https://macgui.com/news/article.php?t=463
    • I have an original 400k Write/Paint Guided Tour disk.  I ended up formatting it after copying its contents to me SE/30's hard drive to test a 400k drive I just received.  The disk reads, writes just fine but once I copied the original contents back to the drive it will no longer boot.  Yes, I formatted it as single sided.     Does the original system suitcase need to be blessed?  How does one go about that on a system 7.1 machine?   Thanks!
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