step two is to stitch the pages together. there seem to be a bunch of different techniques for that, but this is how i decided to do it today.

@tubetime it’s a republican book

for teardown and inspection i had to remove the entire plastic case. the monitor inside is shielded entirely with metal held shut with security "flat" screws. no bad caps inside, no RIFA caps, nothing else looked damaged.

@tubetime How’s the keyboard?

@tubetime Thats cool, my school bought a whole classroom of these for "keyboarding" class to replace the IBM Selectric typewriters, they didn't have internal drives though, they all network booted off a 386 PS/2 server with LAN Manager and Token Ring IIRC. It was pretty sweet, you could power all 20-25 on at once and they'd all boot in less than a minute. PC-DOS 3.3 and WordPerfect.

@tubetime I heard about the tornado today and did some looking, and found a claim that there have been about 40 tornadoes in LA county since 1950. So: unusual.

@tubetime

That was actually Jean Jacket

the HP 10529A logic comparator is also very interesting--you install a "reference chip" and it feeds it all the same inputs, comparing the outputs to see if they match or not!

@tubetime did other companies make tools like HP did?

I see a lot about HP, Tektronix, and HealthKit. But I don’t remember seeing mor than them.

@tubetime that’s from what? ‘95? ‘96?

@tubetime I am very curious as to how you will tackle the gooey outside

@tubetime
This is a great thread: a forensic journey through the innards of a 90s laptop 👍

@tubetime I got my copy - it's a really cool book!

*earlier* what i have here is a Sun SPARCstation 1+.

The mouse lays with its back off, its belly baking under the hot desk lamp, beating its pulse generator trying to turn itself on, but it can't. Not without your help....

@tubetime I wonder if they’ve ever considered starting at 10AM instead of 6AM. I bet that would eliminate the complaints.

@tubetime Hurray! This time I won’t make the mistake of going “early” at 7:30am.

@tubetime We look forward to seeing you at EFM on Sunday

yep, dead battery. shocking

@tubetime VLB was an abomination.

@tubetime I believe I had this board back in 1996. We used to refer to boards like these as VIP-motherboards, short for Vesa/ISA/PCI.

@tubetime I feel like as many of these ended up as SciFi movie props as were bought for their intended purpose

@tubetime Have a SYM as well, but when I got it from ewaste almost 30 years ago, I thought, great 65xx parts to harvest.

@tubetime I have one of those! The PCB is quite badly damaged, though :(

@tubetime This was just seriously kick-ass.

@tubetime The
"I'm here to correct facts" jacket is a nice touch 🙂

@tubetime So how does the Rotate Left instruction work? Does it also have such extensive circuitry to keep the carry?

the challenge remaining is the mystery chip. it could be a gate array device, but i suspect it's off the shelf.

@tubetime This immediately came to mind: https://www.youtube.com/watch?v=q_A1GNx0M9M

@tubetime huh, how does this relate to MUS-1099:
https://github.com/gemedetpaps/MUS-1099

I guess this is missing the ID logic?

I built one of those cards and it's working pretty well (for Scumm-games at least): https://www.youtube.com/watch?v=bSW95JPUE4k

@tubetime

can you identify the package? plastic/ceramic
molding like us or japanese parts?

the chip has been re-marked with a house number, totally useless.

@tubetime @Stratoballoon we do, it’s all over news :-)

@tubetime As it's you, probably an unmarked electrolytic capacitor.

@tubetime Well done.

@tubetime No clue, but here in the UK the choice of weapon are the bloody wood screws.

and i've got an MS-DOS 5 boot disk. it says there is BASIC on it as well, so i'll give that a try

@tubetime legit had to check if this was coming from @NanoRaptor

@tubetime How long until there are people making artisanal CRTs, in the way that happens with nixie tubes?

@tubetime Awesome, I can't quite see but did they weld a flat screen to the bottom of the bottle, in innovation the Tektronix are famous for or even phosphor the bottom of the bottle?

@tubetime beautiful

@tubetime Love it. The LC475 was the first computer my family ever had at home.

@tubetime It’s a beauty! 

@tubetime Didja know I create a direct drop-in replacement for the MM5740AAE encoder used in the originals? ;)

@tubetime Was wondering if you used an original matrix to ascii keyboard converter, but was pleasantly surprised to see it's a 40-pin AVR which really matches the look. Kinda tempted to build one at some point of my S100 video terminal card I have

@tubetime Excellent work, good sir. Absolutely beautiful!

@tubetime

@tubetime fedilab on f-droid, you can create another instance's (without a user) timeline too

and tusky it's ok if you don't want to install f-droid

@tubetime https://tusky.app/ Found this on F-Droid, its open source and seems pretty solid.