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Says it is good up to 220 VAC on mine. Better read yours to be sure though.

Yes they still use resistive defrosters. The modern ones have the traces between the layers of glass where they can’t get damaged though. As to the repair method, by the time I was old enough to have a car with a rear defroster, it was of the newer type; I have never actually needed to carry out...

Well, I agree that the loss of “just turn it on and, presto, nostalgia!” from vintage Maccery is a bit of a downer, but I have come to see it from another perspective after giving the matter some thought over the past few years. The way I look at it, our fellow retrocomputing enthusiasts who...

While the point about the aggregate size of the software library that will run on a given machine is a good one and quite apropos—for example, if my rather unreliable memory is not playing silly tricks on me, I believe the entire corpus of software _ever_ released for the Commodore PET line...

Back in the ancient history of cars with resistive-heated electric rear-window defrosters, say the 1970s through the 1990s, you could cheaply buy little bottles of goop from any auto parts store which were basically conductive paint. In those days the heating element was just printed onto the...

In principle, hiding a more efficient, stable, reliable, and (one would hope) long-lived modern power supply in the eviscerated carcass of the original unit (i.e., reusing the case), thus both preserving appearances and protecting the delicate vintage electronics in the actual laptop, would be a...

Woohoo! I knew that functionality was too useful to not have already been implemented by someone! Having been beaten to it by fully 21 years was a bit of a surprise, but I vaguely recall that dead PRAM batteries were a familiar nuisance even that far back, so I can’t really call it THAT...

Seconded! This is absolutely fascinating to follow. I can mostly follow the theory, but nowhere near to the extent of ever being able to try this myself. Massively intriguing stuff!

To say nothing of screen parameters and network settings. Less urgently, I really like the idea of not having to reënter all of my desktop settings every danged time I boot or reboot the wretched machine. Back when System 7 was current technology, I was (for lack of a more accurate term) a...

My 2300c gradually became unusable due to coloured vertical 1-pixel stripes just like those, about 15 years ago. The really good Mac shop I took it to explained that it happens because the ribbon cable from logic board to screen passes through the hinge, and gets flexed every time the lid moves...

Wow, good to know! I want to do something about them for usability purposes, too, so I will hopefully find time to dig into that this weekend. I still haven’t gotten around to actually writing my planned Poor Man’s PRAM Substitute system extension (simple in concept; back up the PRAM to disk at...

As I understand it, the same unfortunately cannot be said of the PRAM batteries (a pair of highly inaccessible coin cells, or so I have read). I still haven’t quite been brave enough to extract the dead specimens threatening the recesses of my 540c.

When I graduated high school in 1995 (yeah, yeah, “Get off my lawn!” etc.), my parents bought me my very own computer as a reward. I chose an nth-hand SE/30 from the far side of the region… being an ignorant and overeager teen I overpaid, but not horribly so. It was awesome! It did everything I...

The way I would actually do it is just to write a quick little program or script or something. All it needs to do is take the input file, set up an array of four output files, and then loop with three simple operations until you hit the end of the input file, as follows: set the output file...

I have to admit, while I can say with 100% certainty that such utilities are commonplace in certain circles, I have never actually needed to use one and do not know what to recommend. On top of that, as far as I know most of the sort of developers who would need such a thing use Wintel machines...

Getting back to the technical questions, while the individual chips can’t really be edited as self-contained packages because any sequential set of at least four ROM locations will be located across all four chips in round-robin fashion, in practice that’s at least a little bit less inconvenient...

Parallel, you are quite correct, my reply was unwarrantedly snide and completely unconstructive. I am very sorry. When I read your post to which that was a reply, my immediate reaction was pretty much “WTF, I just answered that, why did I go to all that effort?”, followed by “I did kind of get...

I don't see anything on their page that would be a showstopper, though I'm not sure it would be cheaper than a SCSI2SD plus a suitable SD card (which, unlike the Red Rock products, are also available in PowerBook 2.5" size). No harm in contacting them to ask! Let us know what sort of pricing you...

So, basically, you didn’t bother to read my post. I shall be sure to use shorter paragraphs in future. Access to the motherboard ROMs is, as you put it, “striped.” There is no “first slot.” For details, see my previous post.

What is all this "in the first ROM slot" talk? The four chips on the C2 motherboard are each 8 bits wide, and the CPU reads 32 bits at a time. The four chips collectively act as one wider blob of memory in the system. Put another way, under 24-bit addressing (…for example, and simply because I...