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The project was designed in EasyEDA. Thanks for your feedback! edit: EasyEDA source JSON file is in the "gerbers" directory and the first paragraph of the repo's readme has a link to the open hardware source, which includes access to the schematic sources. (y)

I've released the schematics, gerbers, and PCB files for a VRAM version based on the Apple 820-0605-A 512kb VRAM (GitHub). If you appreciate this project I encourage you to star the GitHub repository and share it with friends.

There's some anecdotal success of restoring normal ejection to the original G4 Cube drives by boiling the rubber belts; it shrinks them back to a diameter which is closer to the original diameter. I haven't tried it myself.

Hey @erichelgeson, I've been passively following this project. Would you mind sharing a TL;DR summary of where it's at? I'm specifically interested for the purpose of compact macs but I'm sure others with different use-cases are watching.

That was an oddball. This is a Macintosh Color Classic II which I bought "AS-IS" from Japan (Sendico). After some snooping on the analog board I realized someone had attempted the takky mod but wired the wrong pins. I undid the mod and repaired the pins on the slot connector and voila it lives...

I have a color classic which appears to have a problem with the analog board. Would anyone be willing to offer some advice on where to start? Debugging so far: Checked the CRT on another (working) CC and it works fine! Checked the logic board on the working CC and it works fine...

I had this problem myself recently. My (temporary) solution is below. This is powered by my 30v/10a bench power supply set to 28v. I can see from the power supply that at idle the G4 Cube draws ~1 amp (28 watts) without an Apple Studio Display. With a 27" Apple Studio Display the G4 Cube is...

Thanks Byrd! What I really need is someone who can do the flash ... because I really don't want to buy an old PC with an AGP slot just to do this myself.  :sadmac:

I'm reasonably new to the world of GX macs but recently acquired a G4 Cube and would like to leave the world of ADC behind me. Would someone be willing to flash, test, and ship a GPU to me? I'm happy to pay for both the card and service or just service alone if you prefer I get the card. Oh...

Woohoo! Happy to hear your Mac Plus has a new lease on life :) I'm considering extended the give away to an additional three sets of ROMs. If anyone would be interested let me know in this thread and I'll see if there's more demand.

The last set has been claimed! Remember, the tutorial is there if you want to make your own set and I'm here if you have any questions. Feel free to reach out —

Another set has been claimed - now is your last chance to get a set for free!

I recently posted a tutorial which covers how to make replacement ROMsI recently posted a tutorial which covers how to make replacement ROMs for the Mac Plus. It's directly applicable to earlier compacts, such as the 128k and 512k. The process is similar for the Macintosh Classic & Classic...

I've recently published the open source files for a dimensionally accurate battery cover replacement. You can find the files here or buy 3D prints here ($0.50 markup over manufacturing costs).

I'm somewhat experienced with the M0100. Have you used a multimeter to check the port inside the keyboard while it's connected to the Mac Plus? You should expect the outside wires on either side to read 5 volts. If you have an oscilloscope you can also probe either of the middle wires + ground...

Awesome! As a matter of curiosity, where did your source your replacement chips (and what chip are you using)?

Appreciate the additional detail (and discount)!

Personally, I find the price for an individual set a little off-putting. However, I understand there's time involved for packing and shipping — also, you invested the time and risk to source and purchase these. Just my $0.02 — apologies in advance if it's not appreciated.

I'm by no means knowledgeable with these error codes, but if I'm reading this guide correctly you have "Zero Divide" error. Maybe a ROM issue (like corrupted ROMs?). If you have another machine maybe you could try swapping ROM? That being said, the line makes me think there's a memory issue...

Is this eBay listing for $10 with free shipping comparable to the set of screws you're offering?