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Hmm... have you sent in a bug report? 😜

WHAT!?!?! No onion! What kind of uncouth, plebeian hooligan are you?!?! 😜 2400 "digitally interpolated" DPI, perhaps? Yes; but the original scans are of the original PCB; and your redraw will have small variations (those layout issues you mention)... so I would suggest posting both.

So, pepperoni, mushrooms, bell peppers, and onions? 🍕 Um... no, that's a pizza. Nevermind. ;) It occurs to me, that it might be helpful to people who are restoring original PCBs that got capacitor/battery bombed to have the raw scans of the various layers, so as to see what traces went...

You sure it’s going to be not an issue? I mean shipping something that weighs thirty-five pounds can’t be cheap… perhaps if you got them made with a lighter weight currency? 🤪

Well, yes, you can do it by hand, but getting each selection on the correct pixel boundaries is going to be rather tedious…

How much RAM does your Plus have? If it's not the full 4mb; the first thing I would suggest is upgrading that to the max. Most developers back in the day did that. Also, you will need either a real hard drive; or some modern equivalent (FloppyEmu, SCSI2SD, BlueSCSI, etc). I would stick to C...

Huh… could’ah sworn it was 600mhz… must have been something else that got conflated with it. Anyway… Do you have a link to the source repository for this project?

Does anybody actually have the schematics for the Portable?

Pushing the limits... of an ESP32?!? That's a dual-core 600Mhz processor; and at least under the Arduino core for it, you get one whole core to yourself. Do you have the code up on github or someplace yet? I'd be curious to see what's eating so much CPU time. Soft power control of a Mac that...

Re: dying machines. You do have a proper antistatic setup, don't you? If not, get one - they're not expensive, and nicer ones double as small parts holders. Something to watch out for, though: "wireless esd wrist straps" just don't work. The wire is required to dissipate the static charges to...

Have a look at the Developer Notes for these models. http://www.bitsavers.org/pdf/apple/mac/powerbook/100/Powerbook_100_Developers_Note_1991.pdf http://mirror.informatimago.com/next/developer.apple.com/documentation/Hardware/Developer_Notes/Macintosh_CPUs-68K_Portable/PowerBook_160_180.pdf

And you'd need an adapter that was designed to droop the voltage, instead of overheating and/or outright shutting down. If that is indeed the case, then I'd be inclined to fix the poor design by modifying the portable itself to have a charging controller inline between the power input jack and...

That gizmo essentially turns an ordinary fixed output power supply into an adjustable lab power supply. If you don’t have a big bench lab supply, those are very handy to have.

P.s. Note that this discussion applies to actual constant voltage power supplies; and not battery chargers, as that’s a different beast entirely.

See my first reply: the portable will pull the amperage; if more amps are flowing, yes that’s bad but it’s the Mac’s fault - not the power supply’s.

If you are getting any image from the logic board whatsoever, then the issue is definitely on the analog board. There’s a 7400-series chip (the schematic is a little bit smudged, and I can’t quite make out which one) that is acting as a buffer & inverter for the video signal; this will have the...

No, it's not healthy at all. Practically speaking (without getting into Ohm's law) devices are not fed current, they pull it. So, if you plug a supply into a device that is going to pull 1.5 amps, but the supply isn't rated for that, one or more of the following will happen: The power supply...

A few other thoughts: 2020 T-slot framing is a lot cleaner and more flexible (er, in the utility sense, not in the wet-noodle sense) than the stuff from Home Depot. There's lots of accessories for it too, like angle brackets and connectors. Also, it cuts with a regular carbide-tip circular saw...

I would look to the PC case-mod community and movie prop replica community for techniques, inspiration, and experience. Mac parts aren't that different than PC parts on a physical level (mostly boards and boxes that attach with screws). This is too old to cover a G4, but many of the concepts...

"Context" is used in the sense of "interrupt time context" or "plug-in context" as well... so, yeah. Multiple definitions. The NIC issue seems to be more one of documentation having gone AWOL over the years; or at least that's what I'm finding with my other project (MacESP8266+). On that one...