Recent content by Trash80toHP_Mini

  1. Trash80toHP_Mini

    TwiggyMac - Convection Cooling Design Spec. badly botched in 128K thru Plus - Lots of TwiggyPics!

    Thanks very much, put some work into it and sharing some of the pics I've collected over the decades. I've never seen a serious discussion and nary a mention of cooling in the Compacts outside of stories of SJ's vehement opposition to best practices for such approach to engineering the 128K...
  2. Trash80toHP_Mini

    TwiggyMac - Convection Cooling Design Spec. badly botched in 128K thru Plus - Lots of TwiggyPics!

    No swivel feature, but the raised height/angled ergonomic correction provisions would have alleviated many of the 128K Mac's packaging, neck fatiguing and inexcusable design sins. I've always wondered why every known ZFP Case is flat on top? Angle the b***h! I've long been treasuring a 17"...
  3. Trash80toHP_Mini

    TwiggyMac - Convection Cooling Design Spec. badly botched in 128K thru Plus - Lots of TwiggyPics!

    Deletion of the Twiggy drive in 128K prototyping with substitution of the Sony 3.5" FDD was the root cause of a multitude of cooling/longevity issues for the Compact series.** Sheet metal enclosure on the Shugart 5.25" Drive Mechanism***** based Twiggy drive created a chimney effect...
  4. Trash80toHP_Mini

    Photo Request : 5500, 6500 and TAM Logic Board

    Been studying up on the TAM, It's appear to be a stock 5500 board, the only difference (but for ID resistor setup) would the unpopulated SCSI port connector. SCSI devices internal and external DB-25 port are connected through that crazy I/O daughter board at bottom that hides the missing...
  5. Trash80toHP_Mini

    Cloning a 33MHz 68030 Upgrade for Mac II

    I think that I just put put in a "request from supplier" for purchase of an MC68020rc33 for $15.00? Ebay is $40-50, surprised I found any of them available at all from anywhere.! Wondering if the timing GAL setup in the the Performer we've cloned might be convinced to clock double 68020 to...
  6. Trash80toHP_Mini

    A 512k with a surprise inside

    I hope they taped the vents at the top of the bucket closed! If not the fan's just sucking air in from them, down, back and right out. Close the vents and it'll be cooling the logic board by air in from the vents front-n-sides like it was supposed to be cooled by convection. If you tape it up...
  7. Trash80toHP_Mini

    TAM - Aux PSU for Expansion Card(s) in Development . . .

    Did a more refined diagram in AI8: In parallel TD thread, It came up that USB-C can only output one voltage at a time. But the little Power Converter/Power Supply is the only powered device and only pulling one voltage from USB-C, so it should be continuous? Pathetic TAM PSU is on its own in...
  8. Trash80toHP_Mini

    TAM - Aux PSU for Expansion Card(s) in Development . . .

    . . . hopefully! Start of this project was info about the anemic TAM PSU issue from many sources, here, Tinkerdifferent, WWW and ThinkClassic back in that day. Was working on putting together a better Initial Post, but what the heck . . . just chuck it out to the pack of wolves! :p...
  9. Trash80toHP_Mini

    Apple Extended Keyboard [AEK Numero Uno] - Great Keyboard? Or *Greatest* Keyboard?

    Nice pics, but that adds up to 1/2" larger in each dimension, not to mention max height. IMO, it's the AEK's Snow White design stripes and angularity that give it that Nimitz Class look-n-feel. Rolling deck but love mechanical switch feel. Espresso Design Language curvature in the ADK with its...
  10. Trash80toHP_Mini

    Cloning a 33MHz 68030 Upgrade for Mac II

    Apparently Motorola made the MC68020RC33 that, if found, might be used in a Performer Type 2x CPU accelerator? Overcoming the 68030 hurdle seems a bit of a less hassle than finding one of those . . . or in quantity. :rolleyes:
  11. Trash80toHP_Mini

    Can any useful emulation run on a Raspberry Pi Zero? CM4? CM5?

    Thanks much, should have taken that suggestion when you made it the first time. But have been way too distracted of late but settling down a bit. Hadn't thought KVM switch hookup would be much of a issue in the Pi community? You "randos" have been incredibly helpful here, many thanks!
  12. Trash80toHP_Mini

    Apple Extended Keyboard [AEK Numero Uno] - Great Keyboard? Or *Greatest* Keyboard?

    Same here, but probably my favorite it the Radius branded ADK style version that came with the Radius 81/110. Dunno how, but somehow it feels just right to me in the Sleeping Beauty Wars over AEK size in one theater and feel of the IBM ClackMonseter in the other.
  13. Trash80toHP_Mini

    Can any useful emulation run on a Raspberry Pi Zero? CM4? CM5?

    Thanks, guys, might there be any problem with putting it on a KVM switch? I have tree way USB model that has (whatever it's called) feature that hoodwinks the three into thinking they're still the only one hooked up. It was great to see that feature has finally dropped into less stratospheric...
  14. Trash80toHP_Mini

    Anyone thought to make a tool for this?

    That's a nice kit.
  15. Trash80toHP_Mini

    Can any useful emulation run on a Raspberry Pi Zero? CM4? CM5?

    HRMMM, will a Pi power up automatically when power is applied? Sure as heck it'll drop dead when power is cut . . . or is there an orderly shutdown process? ;)
Back
Top