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  1. JDW

    Mystic Died. Looking for an MC88916DW80 chip.

    Somehow I killed my Mystic merely by making some 4-wire resistance measurements in the vicinity of the XC88916DW55 chip on my LC575 motherboard. I know it's a problem on the motherboard, not the analog board. I believe the 88916DW chip is now bad because when I put my scope on it, the Q0 and...
  2. JDW

    Conversation SEARCH

    Almost every time I access my PMs, I have a need to keywordーsearch past conversations. Alas! No Can Do! The good news is that there's a Xenforo plugin that gives us what Xenforo should do out-of-the-box: https://xenforo.com/community/resources/conversation-search.5788/ $35 is a small...
  3. JDW

    Flippy-Floppy Video REVIEW

    In August 2022, @Kay K.M.Mods created what I consider an OUTSTANDING upgrade for the Color Classic MYSTIC called: FLIPPY FLOPPY. I'm a big-time FloppyEMU user. It always frustrated me to my core when I reflected on how my otherwise great MYSTIC doesn't have an external floppy drive port on...
  4. JDW

    A Very Special Apple IIc

    A little something to usher in the Christmas cheer. Merry Christmas, folks! ⛄🌟🎅🎄
  5. JDW

    Overlocked Turbo040 in Macintosh IIci, 400K & 800K floppies don't work

    I wish to thank David Cook for his excellent post over at the 68kMLA, as that served as my inspiration for overclocking the Daystar Turbo040 in my Mac IIci. Overclocking is done by a mere XTAL swap. (And the Hakko FR-301 desoldering gun makes the job easy, I must say.) Because David was able...
  6. JDW

    DaynaPort E/II-T NuBus Ethernet card — MANUAL needed

    I acquired a DaynaPort E/II-T NuBus Ethernet card for my Mac IIci, and the drivers for it are found on Macintosh Garden here: https://macintoshgarden.org/apps/daynaport-drivers QUESTION: I can't find the MANUAL anywhere. Do any of you have it? Pretty crazy but I can't even find it on the old...
  7. JDW

    ROM SIMM Fun on Vintage Macs & News from VCF Midwest

    Everything you wanted to know about custom ROM SIMMs, and so much more! This video took me 7 weeks to make. Much of that time was spent in testing, and in working with Doug Brown and the CayMac team. The end result is amazing. Don't miss the text description on YouTube because I packed it...
  8. JDW

    ROM Clips for securing custom ROM SIMMs in an SE/30

    I am posting this in the Compact Mac sub-forum because most of us tend to use custom ROM SIMMs on the SE/30. I've been doing the prep work for a video about the ROM SIMM Programmer and ROM SIMMs currently sold today. One big issue is the thickness of the ROM SIMMs and the finicky nature of the...
  9. JDW

    GOTCHAS when buying a Macintosh Portable?

    I am curious what issues people need to be aware of when buying a Macintosh Portable, especially the backlit model (5126). I realize Portables won't power on without a good battery, but new batteries like this are sold on EBAY. Maybe some of you can share experiences with those. I also realize...
  10. JDW

    Calling all Hackers — Mod the HD20 INIT code?

    Folks, I discovered something new with my SE/30 & FloppyEMU last night. I reported it to Steve Chamberlin of BMOW, and he kindly wrote back with the answer. I thought it might be a situation where some of you vintage Mac hackers might get some kicks out of this. BACKGROUND As you know, the...
  11. JDW

    Apple T-Shirts Book -- 1000 shirts!

    Now available on Archive ORG: https://archive.org/details/apple-t-shirts/mode/2up I ran across a post by the book owner on FaceBook and lamented the high cost of the out-of-print book and the fact there was no scan of it. He very kindly scanned it and put it on the Wayback Machine today...
  12. JDW

    Mac-O-Meter REVIEW (voltmeter)

    I spotted a fascinating little gadget in a post to the Vintage Apple Macintosh Enthusiasts Facebook group in April this year. I sent a PM to one of the co-creators, Joakim Larsson , and that led us down the rabbit hole of conversations which resulted in me buying one and then doing the full...
  13. JDW

    EEVBlog 121GW Multimeter REVIEW

    After a bit of research and having the need to make temperature measurements over time (i.e., "data logging"), I decided to buy the 121GW multimeter, from EEVBlog. That prompted me to make a detailed video review of it, in which I compare that meter with some of the Flukes I use at the office...
  14. JDW

    MicroMac Carrera040 Accelerator — Audio Fix for SE/30

    I'm pleased to report there is now a fix for audio glitching when using a Carrera040 accelerator card (original or clone) in an SE/30, thanks to a revised Control Panel from @Bolle and GeekDot. I have uploaded it to the Macintosh Garden here...
  15. JDW

    SE/30 RAM Banking QUESTION

    According to this LEM page, unless you are installing 17MB, you should be putting the larger sized SIMMs into Bank A, with the smaller sized SIMMs into Bank B. However, when I put four 16MB SIMMs into Bank A, and nothing in Bank B, I get death chimes and a crazy display. But if then put 4...
  16. JDW

    Snooper 2: Motherboard Pixel Images Extracted! ENJOY!

    Starting with this post, I found that Snooper 2 has some interesting motherboard photos, worthy of extraction. If you follow that discussion, you will see that it concluded with the finding that we cannot extract them from the PICT resource of the Snooper app. The only reasonable method of...
  17. JDW

    Year End 2022: Seasons Greetings & Best Wishes!

    @Kai Robinson kindly offered us some wonderful well-wishing last year, and with it being Christmas today here in Japan I felt compelled to do the same. Forum membership has grown considerably in 2022. I know everyone here at TinkerDifferent would like to extend a huge thank you and warm...
  18. JDW

    NEED HELP: Joystick Shield + Mach III + Virtual ][ emulator + M1 Mac

    I posted about this over at the Apple II Enthusiasts group on FaceBook, and I also sent Henry of ReactiveMicro an email, but thus far I've not been able to determine the cause of the problem I am having, which I described in detail in the following unlisted video on YouTube... PROBLEM QUICK...
  19. JDW

    Apple IIe Card, FloppyEMU & Mach III Joystick VIDEO (Part II)

    My Part II video on this topic turned out to be longer than I thought, but it's fully indexed so you can jump to the parts which interest you. Even so, it's highly edited such that all the boring stuff is left out and what remains is only the juicy meat. :-) This really is about how useful the...
  20. JDW

    Apple IIe Card in Color Classic MYSTIC [Part 1]

    Although I've been a Mac fan since 1984, I'm still new to the Apple II. But my recent purchase of an Apple IIe Card & Y-cable for my Macintosh Color Classic Mystic has been a fun learning experience. I made this video showing how to recap the card and to provide a general overview of the...