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I've seen a number of 3D printed Mac cases. They often need to be assembled and glued due to the limited printing bed size. However, as 3D printing technology continues to improve, I expect some really nice replica cases to become available.

I agree. For all the Macs I've repaired, I have only experienced two types of chip failure: 1. Chips immersed in capacitor goo. There are sections on the SE/30 and IIci that routinely damage the nearby jelly bean chips. 2. Anything on the Macintosh Portable -- due to a bad power design...

Ahh. That's a problem What about a 30-pin RAM SIMM + LED latch? Let's say the SIMM is 1 MB and is always put in a specific slot of a specific bank. Although the CAS+RAS+WR+address lines combo are more complicated to decode, you could essentially obtain 8-bits on a write to a specific address. I...

We've long had reprogrammable ROM SIMMs replacement. Those ROMs often have little improvements, such as skipping memory tests and adding ROM disks. I wonder whether anyone with experience in developing those ROM boards would consider the following: Add a latch chip with sufficient drive for a...

The IIfx's memory sockets are very fussy. Pull bank B. Then reseat bank A. If that doesn't work, try it a few more times and swap memory SIMMs. I swear if RAM in bank A does not pass you do not get the chimes of death. It simply does what you experience (power on chime and then nothing).

Works great. Thank you!

Thank you. Unfortunately, I've tried a bunch of methods to open the .dmg or .zip file in Basilisk II (for Windows) or Infinite Mac. No luck. Using StuffIt Expander, the .zip file does open in Basilisk II. But, then I'm left with the resource fork / data fork split into separate files. Does...

Cool. Can you point to where we can get that?

Put the attached zuluscsi.ini file on the SD card. It contains a required setting to be compatible with the Mac Plus, Portable, and PowerBook 100. (Note: I guess .ini files are not allowed to be attached to this forum. After downloading, rename the file by removing the ".txt" I added to the end...

Attached are several monospace fonts (but only Courier has size 10) in a suitcase. Use Tiny Transfer or BinHex to convert back to Mac format. BitFont is also attached.

1. Add a pair of holes so that a loop of wire can be soldered in place for a ground test point. It will make oscilloscope/multimeter testing much easier. 2. If you have spare wires in the cable, bring those out to a header (along with +5 and ground) so that we can hack a brightness control via...

Don't get me started about Holly.

Has anyone tried a food dehydrator?

The 68060 lead designer, Joe Circello, recently gave an interview. I believe they reference @zigzagjoe's project at one point.

Thank you for the awesome write up and photos! I guess this was much closer to being a production product than I realized.

I'd prefer that the correct checksum is computed and saved to the ROM. This allows independent test programs (such as Mac Test Pro) to pass testing. It also means the ROM checksum routine does not have to be altered.

https://tinkerdifferent.com/threads/macintosh-portable-horror-story.2712/page-5

Awesome!

The page numbers of the schematic that the signal connects to. For example, DISP_BLANK* is also present on pages 2, 12, and 18.