Mac SE Restomod Has A Floppy Surprise

June 19, 2025 by Tyler August 20 Comments

If he’s anything like us [Duncan Hall] was probably equal parts excited and disgusted when he found a 1987 Macintosh SE case at a garage sale. Excited, because not every day do vintage computers show up at these things. Disgusted, because it had been gutted and coated in house paint; the previous owner apparently wanted to make an aquarium. [Duncan] wanted to make a computer, and after 15 years, he finally did, calling it the PhoeNIX SE.

Note the small hole in the top floppy bay for the laptop webcam.

The NIX part of the name might make you suspect he’s running Linux on it, which yes, he absolutely is. The guts of this restomod were donated from a Dell XPS laptop, whose Core i7 CPU and motherboard power the project. A 9.7″ LCD serves in place of the original monochrome CRT, held in place by 3D printed hardware. While a purist might complain, it’s not like anyone makes replacement CRTs anymore, and once that’s gone? You might as well go full modern. (The analog board, on the other hand, is available. So is the logic board, if you were wondering. Lacking a CRT, some might have chosen e-ink instead, but the LCD looks good here.)

All ports are on the rear, as Steve would have wanted. That original sticker survived under latex paint is a spot of luck.

Having gone full modern, well, there’s no need for the M5011’s dual floppies, so one of them holds a webcam and monitor for a modern experience. A zoom call from that case would be a bit surreal, but we really appreciate the use of the empty floppy bay to keep the clean lines of the Macintosh SE unaltered. The other floppy bay (this is a dual-floppy unit) appears empty; we might have put an SD-card reader or something in there, but we absolutely agree with [Duncan]’s choice to 3D Print a new back panel and keep all I/O on the rear of the case, as God and Steve Jobs intended.

However you feel about restomodding retrocomputers (and we’re aware it’s a controversial practice), I think we can all agree this is a much better fate for the old Mac than becoming an aquarium. Thanks to [Loddington] for the tip.

If you’re on the side of the aisle that prefers to see restorations than restomods, the tips line is waiting for some quality restorations.

LCD Stackup Repair: Not For The Faint Of Heart

February 23, 2025 by Elliot Williams 11 Comments

Coming straight to the point: [Ron Hinton] is significantly braver than we are. Or maybe he was just in a worse situation. His historic Acer K385s laptop suffered what we learned is called vinegar syndrome, which is a breakdown in the polarizers that make the LCD work. So he bit the bullet and decided to open up the LCD stack and replace what he could.

Nothing says “no user serviceable parts inside” quite like those foil-and-glue sealed packages, but that didn’t stop [Ron]. Razor blades, patience, and an eye ever watchful for the connectors that are seemingly everywhere, and absolutely critical, got the screen disassembled. Installation of the new polarizers was similarly fiddly.

In the end, it looks like the showstopper to getting a perfect result is that technology has moved on, and these older screens apparently used a phase correction layer between the polarizers, which might be difficult to source these days. (Anyone have more detail on that? We looked around and came up empty.)

This laptop may not be in the pantheon of holy-grail retrocomputers, but that’s exactly what makes it a good candidate for practicing such tricky repair work, and the result is a readable LCD screen on an otherwise broken old laptop, so that counts as a win in our book.

If you want to see an even more adventurous repair effort that ended in glorious failure, check out [Jan Mrázek]’s hack where he tries to convert a color LCD screen to monochrome, inclusive of scraping off the liquid crystals! You learn a lot by taking things apart, of course, but you learn even more by building it up from first principles. If you haven’t seen [Ben Krasnow]’s series on a completely DIY LCD screen, ITO-sputtering and all, then you’ve got some quality video time ahead of you.

16-bit Linux-like Goodness

January 5, 2025 by Al Williams 15 Comments

We see many 16-bit retrocomputers around here based on Intel and Intel-like chips such as the 8086, 8088, V20, and similar. While they don’t seem very powerful by today’s standards, they were perfectly capable machines and, thanks to Elks (Embeddedable Linux Kernel Subset), you can run something fairly Linux-like on these devices.

The requirements are light: 512K of RAM is desirable, but you can do something with 256K. If you have ROM, you can even get by with 128K. Most importantly, the system doesn’t require a memory management unit to remap memory like many operating systems.

Continue reading “16-bit Linux-like Goodness” →

Ruined 1993 ThinkPad Tablet Brought Back From The Brink

November 18, 2024 by Lewin Day 11 Comments

Collecting retrocomputers is fun, especially when you find fully-functional examples that you can plug in, switch on, and start playing with. Meanwhile, others prefer to find the damaged examples and nurse them back to health. [polymatt] can count himself in that category, as evidenced by his heroic rescue of an 1993 IBM ThinkPad Tablet.

The tablet came to [polymatt] in truly awful condition. Having been dropped at least once, the LCD screen was cracked, the case battered, and all the plastics were very much the worse for wear. Many of us would consider it too far gone, especially considering that replacement parts for such an item are virtually unobtainable. And yet, [polymatt] took on the challenge nonetheless.

Despite its condition, there were some signs of life in the machine. The pen-based touch display seemed to respond to the pen itself, and the backlight sort of worked, too. Still, with the LCD so badly damaged, it had to be replaced. Boggling the mind, [polymatt] was actually able to find a 9.4″ dual-scan monochrome LCD that was close enough to sort-of fit, size-wise. To make it work, though, it needed a completely custom mount to fit with the original case and electromagnetic digitizes sheet. From there, there was plenty more to do—recapping, recabling, fixing the batteries, and repairing the enclosure including a fresh set of nice decals.

The fact is, 1993 IBM ThinkPad Tablets just don’t come along every day. These rare specimens are absolutely worth this sort of heroic restoration effort if you do happen to score one on the retro market. Video after the break.

Continue reading “Ruined 1993 ThinkPad Tablet Brought Back From The Brink” →

Strange English Teaching Computer Might Have Been Big In Japan

October 21, 2024 by Al Williams 9 Comments

[Ctrl-Alt-Rees] bought something strange on an auction site: a Japanese Cefucom-21 from 1983. No? Didn’t ring a bell for us either. The legend on the front boldly proclaims: “CCI Multipurpose SLAP Computer,” so maybe it is some kind of computer, but it is definitely strange. For one thing, the “screen” isn’t a screen at all. [Rees] has found that it has something to do with teaching English. You can see the odd beast in the video below.

We don’t know how common these were in Japan, but they appear to be virtually unknown everywhere else. Inside is a Z80 computer based on a Sanyo PHC-25, which is a little better known.

Continue reading “Strange English Teaching Computer Might Have Been Big In Japan” →

Building A ZX Spectrum Using Only New Parts

October 17, 2024 by Lewin Day 29 Comments

Ah, the Sinclair ZX Spectrum. A popular computer in Britain and beyond, but now rather thin on the ground. If you can’t find one, fear not, for now—you can apparently build a new one with new parts! [TME Retro] is here to demonstrate how.

Before you get excited, no—Sinclair has not risen from the dead. Instead, it’s simply down to the state of the retrocomputing community. There are enough reproduction parts and components out there for the ZX Spectrum that it’s now possible to assemble the whole computer from new bits. You can get new cases and new mechanical keyboards, and a 100% compatible motherboard in the form of the Harlequin board. The latter even reproduces the unobtainable Spectrum ULA glue logic chip in raw logic!

It’s neat to see the ZX Spectrum live on decades after the production lines ground to a halt. We’ve seen similar feats achieved with the legendary Commodore 64; you’d think we had enough of them given they were the best-selling computer of all time. Video after the break.

Continue reading “Building A ZX Spectrum Using Only New Parts” →

This Vintage Computing Device Is No Baby Food

July 20, 2024 by Al Williams 10 Comments

Today, if you want a computer for a particular task, you go shopping. But in the early days of computing, exotic applications needed custom computers. What’s more is that with the expense of computers, you likely got one made that fit exactly what you needed and no more. That led to many oddball one-off or nearly one-off computers during that time frame. Same for peripheral devices — you built what you had to and you left the rest on the drafting table. [Vintage Geek] got his hands on what appears to be one of them: the Gerber Scientific 6200.

While Gerber Scientific is still around, we’ve never heard of the 6200. Based on the serial number, we would guess at least 62 of them were made and this one has an interesting backstory of living in someone’s home who worked at the Pentagon. We presume the tapes were erased before it was sold!

Design-wise, it is pretty standard stuff. A 19-inch rack, a standard tape drive from Kennedy, a power supply, and some cards. The box takes 240 V, so the computer didn’t get powered up, but an examination of the inside looked like this really was a one-off with handwritten labels on masking tape.

We couldn’t tell for sure if the device was a computer itself, or just a tape drive and maybe plotter interface for another computer. If you know anything about this device, we are sure [Vintage Geek] would like to hear from you.

If this does turn out to have a CPU onboard, we’d bet it is bit sliced. If you have a 9-track tape machine, you may have to make your own tapes soon.

Continue reading “This Vintage Computing Device Is No Baby Food” →