• Hello, Guest! Welcome back, and be sure to check out this post for more info about the recent service interruption and migration.

Recent content by mg.man

  1. mg.man

    Portable Hybrid: Looking for 3 US testers

    That would be awesome! I'm happy to cover the shipping - no need for you to be out of pocket! I'll drop you a PM
  2. mg.man

    Portable Hybrid: Looking for 3 US testers

    I've had several MLA'rs send stuff to me recently - they've not used the USPS "Priority Int'l" - which is pretty outrageous - but just sent using standard USPS International service (small 'jiffy' envelope) - it worked out to less than $20 and took under 2 weeks. I'm happy to cover the cost if...
  3. mg.man

    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    Interesting. Is the firmware available? I've slso run into issues with a couple of my uSD cards. My 1704s and PICkit3 have arrived, so willing to give this a spin and report back.
  4. mg.man

    Macintosh SE/30 logicboard recreation (thread revival)

    @CircuitBored, @cannfoddr, I believe @Kai Robinson might have one or more available - you might want to drop him a PM.
  5. mg.man

    Can Anyone Provide Any Information On This "Prototype" Power Macintosh 6360?

    I'd also suggest you create a "Help needed imaging a System 7.7 drive" - that will probably get some attention... :-)
  6. mg.man

    Can Anyone Provide Any Information On This "Prototype" Power Macintosh 6360?

    Dang... wish I were closer, I'd be happy to help - but there's (literally) an ocean between. 😉 This isn't going to help directly, but I spot a SCSI port on the back. Try booting it while holding down the "T" key on the keyboard. That should put it in "T"arget Disk mode. It that works...
  7. mg.man

    GCC HyperDrive troubleshooting - drive doesn't spin

    Another option might be to locate a SCSI version. Looking at one of mine, it appears the connections to the drive mechanism are the same (at least physical placement, etc.)... :unsure:
  8. mg.man

    GCC HyperDrive troubleshooting - drive doesn't spin

    Ahh... there is a decent pic here - https://www.ebay.com/itm/314018414725 - which indicates the 2nd component is just a resistor. You can probably enlarge and make out the value. The other component - the blown one in your case - is definitely a capacitor, but I can't see any markings. Purely...
  9. mg.man

    GCC HyperDrive troubleshooting - drive doesn't spin

    Could also be 2.7uF? Found this as well - https://www.ebay.com/itm/260894785468 :unsure:
  10. mg.man

    GCC HyperDrive troubleshooting - drive doesn't spin

    You might be lucky, and it's just the larger one that failed, and the 2nd one is just covered with the first's innards. That looks very much like an old-school "bullet" tantalum capacitor - the same type you find near the PSU connector on an old Apple II motherboard. I can also make out "2"...
  11. mg.man

    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    No dice... just the flashing floppy. Swapped for the 4gb, booted straight away. So, my limited experience seems to align with @dochilli, some uSD cards work, some don't. 🤔 I'll do some more testing when I have the new uSDs I've ordered.
  12. mg.man

    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    Spoke too soon. 2gb "generic" uSD will work once, then throw up the flashing floppy on subsequent boots. The 4gb card works every time. Not sure what to conclude from this, but there seems to be some sensitivity around which uSD you use - at least with the SparkFun adapter. I'll try removing...
  13. mg.man

    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    FWIW, I was working for IBM back in '84 and we had one of the original Macs (behind closed doors) to check out all the hullabaloo about this WYSIWYG stuff... 😉 Of course (like most) we quickly discovered 128k was not going to cut it, so ordered the 512k "upgrade". It came in a box with a...
Top