My MCGA+ core for the Graphics Gremlin HDMI may as well have the kitchen sink because in addition to the MCGA modes, it has enough of the VGA for modes 12h, “X” and “Y” as well as an isolated MDA on the hardwired 2 bits per channel HDMI. Releasing soon.

For folks that don't watch football much. It's not that Capo Verde, a tiny nation, managed to make it this far. It's that they made every team work for it. They weren't the classic minnow who played negative football and scraped by. They were equals to Argentina today. Incredible. Bravo. A classic.

these are pretty nice panels, there was a system constructed to test them to very exacting standards. how do you test solar panels? you run them backwards, like giant LEDs (infrared) and check them with a camera...

fascinating! i'm only familiar with the original DuoDock which could host two standard PowerBooks at the same time, one on top of the other.

I've released the new version of my Pico2 DRAM tester! This version adds some minor tweaks, including a new USB-C power connector. github.com/schlae/pico-...

mTCP is now officially on github! I was resisting for years but there are too many out of date versions out there now, so providing an official copy to fork from should be beneficial. github.com/mbbrutman/mT... #Retrocomputing

The Space Shuttle had five general-purpose computers that controlled, monitored, and navigated the Shuttle. Each computer consisted of two boxes: the CPU (right) and the I/O Processor (IOP, left). The IOP connected the computer to 24 high-speed networks. Let's look at two boards from the IOP... 1/N

wow that takes me back

While I love manga, I must say that I think my favorite comic art style will always be the Ligne Claire style, as was used by Hergé and Edgar P. Jacob for Tintin and Blake & Mortimer respectively. There’s just something about ligne Claire that works so well for adventure comics.

this biblically accurate power connector CAN hurt you. it has two interlock pins to disable the outputs because this cable has exposed pins!

YES

doing a little PCB layout, check out my stream: www.twitch.tv/tubetimeus

come for the weird computer, stay for what turns out to be rare movie props!

Unpopular opinion: strawberries should not be the size of plums. All m odern strawberries taste so weak as a result. www.theguardian.com/thefilter/20...

Soy sauce salt crystals sitting on an iPhone torchlight.

RIP to Bobby Prince, please forgive me for the time I set up my SC-155 wrong and tried to play Doom and got whatever the hell this is

The answer to this, from Gareth in the comments, is amazing

RIP Bobby Prince. His music legacy will live on, making inspired music for Commander Keen, Wolfenstein 3D, DOOM, countless others. A true legend. And such a nice man, great musician, wonderful, fun-loving man, nothing but happy memories of him. A loss to the world.

the original Slot A CPU.

This is what disk mould looks like. If you see this on your old disks then clean them BEFORE putting them into a disk drive. Otherwise, you are likely to clog up the drive read/write head and/or possibly damage the disk. Clean with diluted Isopropyl alcohol ( IPA ) on a soft, lint-free cloth.

a very interesting read with a good explanation of the twins paradox.

classic breakout board design: a 3-pin header and a 4-pin header to a 3-pin header and two 4-pin headers. beautiful.

FLAMMABLE PRESSURE NOISE TOXIC LASER

a wild strawberry, Fragaria virginiana (or possibly Fragaria vesca). the flavor of a wild strawberry is much more intense to the point where they almost taste like artificial strawberry flavoring, although not terribly sweet. farmed strawberries are a pale shadow in comparison.

This is why archival is IMPORTANT!! Sharp PC-5700 series 5745 Service Manual is non-existent except for ONE site. Bought it at servicemanuals.net and guess what! He... Threw... Them.. All... Away... Perhaps the only copy left in existence, Gone. Not found another. Gotta love business decisions

something's not right about this RCA connector.

i found a Board of Canada.

hmm, it's June 7. an interesting number.

ahh yes it's two VGA connectors side by si--wait, are those extra pins below?

what engine is this? half a small block V8?

ever wonder what happens when you put a bare light bulb filament into liquid nitrogen?

i got this weird little beast working today. the HP 125 is a dual processor CP/M machine (one main Z80 CPU, another Z80 to run the built-in terminal).

back when DIP chips had the pin numbers right on them. perfect for breadboarding! (stolen from fb)

I was hoping to demonstrate this last weekend at RetroFest 2026. A true 8-bit Pocket Computer running CP/M on an 8Mhz Z80. On board storage, USB-C or battery powered, internal module bay and full RC2014 expansion bus. It runs Microsoft BASIC and Zork. So it's called the Zorkulator. Please share.

be sure to have that disk in hand!

This has been a quixotic quest for no reason other than to see if i could do it, but I did do it: I've created a ceramic circuit board with copper traces that I can solder components to. Here's a little astable multivibrator circuit running on stoneware.

now that the 7000 gallon tank of methyl methacrylate has turned to solid Lucite and potted itself, the time has come to cut it in half

#electronics #decapping

i need to work with some very early 3 1/2" disks. this example has an oval window but more surprisingly, the disk shutter must be opened manually before you put the disk in the drive!

Museum collections cost money to maintain. Objects require conservation and preservation and that’s not cheap. That’s why collecting policies exist: to determine which objects best meet the museum’s aims and goals and interpretation needs. It doesn’t mean your object is worthless if refused.

Party sprinkles, MCGA SRAM edition. I’m not sure which is more surprising, that the build engine supports MCGA or that my Graphics Gremlin does (now). Off to a decent start.

The weirdest color ISA MDA card is alive (mda graphics gremlin core, color attribute byte decoding). This used to be a PC/104 DeviceNet network card (Molex/Woodhead SST-DN4-104-1). Now it is a video card.

I built a binary watch!

years ago i made an AM radio out of a 555 timer. i once showed it off to Hans Camenzind, who designed the 555! www.youtube.com/watch?v=YC72...

here's an old school pen plot of the chip layout of a 555 timer! each mask layer is on a separate sheet of transparency film.

wow, here's a much cleaner image of the original NE555 timer chip!

in honor of the 55th anniversary of the creation of the famous 555 timer chip, here's a preview of my newest creation.

found a pushbutton switch bank with absolutely GNARLY tin whiskers! these tin whiskers are so gnarly, even individual tin whiskers HAVE WHISKERS