Recent content by cheesestraws

Mine also emitted a quiet ticking, FWIW, until it had warmed up; I somehow forgot to put that in the post. This feels unlikely to be the flyback to me, but I don't know a huge amount about CRTs, so that's only intuition. If you can measure stability, are the HSync and VSync good solid...

Does it look anything like this? https://68kmla.org/bb/index.php?threads/fix-report-wibblyplus-wibbles-no-more.38964/ For me, this turned out to be corroded solder joints on non-cap components in the PSU, right at the bottom of the board. If you can, measure the ripple on your voltage lines...

ResEdit is really customisable. In theory you could write an editor to be able to edit your maps directly in ResEdit, but that's probably more trouble than it's worth...

Doesn't show input voltage; but since it specifies 60Hz I bet it's also 120V only. So not suitable for OP :(

This is great, well done. That's a really nice addition to the MacSD.

AC wall PSUs are very unlikely to be multi-voltage unless they have a switch on them: the techniques that enable that for AC/DC converters are basically closed off to them. (Sorry for double post, mind wibbled)

You've got good eyes! I don't think mine had the AC/DC note either but it worked off 12V DC fine.

A couple of thoughts: All normal mac serial cables are crossover. DCE/DTE isn't a thing in the mac world. Localtalk boxes would also rely on straight wiring. To me, having the jumper for crossover/straight is an invitation to people making it not work and then complaining about it. Pretty...

Ooooh yes. If you ever get the time, pleeeeease scan the manual, I'd really like to read the stuff about how that all works.

Sometimes you just need someone to use the right words. I've been stumped on stuff before that suddenly made sense after someone explained it, then felt like it should have been reasonably obvious :) For unknown resources, ResEdit will just give you a hex editor, so you can still check that...

I think you're confused here because you're conflating two layers of things. A resource is just a blob of data. When you get a resource, you just get a handle to a block of memory containing that resource. You can treat that block of memory in any way you like. A resource type is just a...

We can certainly have a look! That's the maximum current that the supply can provide, not the amount it will force through. You're generally fine to use a higher-rated PSU (in the current department) with a lower-rated device, the device just won't pull the extra current that would be...

Oh, yeah, RMS not peak-to-peak. You can tell I'm not used to thinking about AC, can't you... :-)

Wouldn't you have that anyway, though, even with the AC adapter? The voltage drop across the diodes will remain regardless of whether its input signal is varying or not? Am I missing something?

For the 605/475 I believe it's lack of video drivers being the biggest thing. The 630 has even more variations from the supported machines, so I'd expect more drivers would be needed. I don't think there's any theoretical reason why someone couldn't write drivers for these machines, with...