Jump to content


  1. Important Information

    1. The 68kMLA Forum Rules   (10257 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.

    2. Conquests

      Discuss your latest vintage Mac finds!

    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.

  3. Projects & Hosted Forums

    1. RetroChallenge

      What can you do given only one month and strictly "retro" hardware? Find out with RetroChallenge!

    2. 68kMLA Wiki

      The creation and maintenance of the 68kMLA's information repository.

  4. 68k Model Forums

    1. Compact Mac

      Macintosh, 512k, SE, etc.

    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!

    3. 68k LC & Performa

      Ah, the consumer computers!

    4. 68k PowerBook

      From the Portable to the 190cs.

  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

    2. PCI Power Mac & Performa

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

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

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

    4. PPC PowerBook & iBook

      All that power in a laptop? Never…

  6. Everything Else…

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

      Not really 68k Macs, but certainly Vintage!

    2. Newton

      The best PDA ever finally gets its own forum!

    3. Software

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

    4. Hacks & Development

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

    5. Peripherals

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

  • Posts

    • I've noticed the note #4 at page 1 erroneously says "RDB" instead of "ADB".   Now that I'm getting more into redrawing the Macintosh SE MLB schematics, I'm also looking to the redrawn SE/30 MLB schematics for reference.  Though the original SE/30 scans are not nearly as illegible or as incomplete as the SE MLB schematics, looks like there are still a number of small fact/quality checks and improvements remaining.  I might see what I can do to carefully eye through it the way I've done for the only page of the SE MLB schematics that is scanned, as in any case it would be a good learning experience for me too.   As a side note, I've noticed that @uniserver also happens to have some redrawn SE/30 schematics on his personal website that have purportedly been around for much longer.  It requires payment through PayPal, though, and I'd guess his way of running the site requires him to manually send an E-mail to you after the payment is received, which may not be guaranteed if he's no longer very active with his site.  Also, It's been years since he's last been on 68kMLA.   Has anyone ever bought/used Uniserver's schematics?  I'm curious to hear what you thought about them.
    • Two sets of four please! Thank you for building this. 
    • Okay, I'm getting you now. I also talked to my brother-in-law who is an Engineer, and he helped me understand some of the principles at work here.   When I put my meter on the resistor and the ground pin, my meter was completing the circuit, not the LED, which is why there was minimal current, and why I was getting the 5V reading. I get what you're saying about the LED opening the circuit.   So I am quite confident now that the problem is with the LED. I will try just resoldering this one in case it's a bad connection, otherwise I'm off to go find some other mice to see if I can find a donor LED that is the same as this one... Hopefully Apple was using some standard parts in these mice that are common to other mice from that era.   Thank you for all your guidance, @cheesestraws, it was very helpful. If nothing else, this has been a valuable learning experience.   On a side note, since I had the mouse apart, I made my first attempt to retrobrite something. I used the oxiclean method that a few people have been experimenting with lately. I left it out in the sun for two days of about 30 degree Celsius (~86 F) weather. It came out a bit splotchy, but the extra white areas appear to be where the texture of the mouse is worn down from use, so the results may have been the same with any method. It's definitely still a bit yellow, so I may try it again with another method at some point, but I'm happy enough with it.  
    • Happy Friday everyone! A couple updates....   I think the web interface is ready for folks to start trying out! I've been testing it out today and it seems to work. I'd love for someone to try it out and give me some feedback. (I realize that there aren't many people who have working RaSCSI devices.... yet ) Setup instructions are available here: https://github.com/akuker/RASCSI/wiki/Web-Interface     I've got 10 RaSCSI boards that should be delivered in the next few days, along with a ton of 74LS641s. If I didn't dork anything up with the design, I hopefully will have some to send out to folks in a week or so.  
    • Well, everyone knows I'd buy one   I kind of wonder about making an external chassis so we can have a breakout of some kind.  @Bolle if that is do able let me know and maybe I can make a case for such a device.