#marchintosh — Public Fediverse posts

Rhubarb update, 5 May 2026.

SE/30 for scale.

#Marchintosh #rhubarb #RetroComputing

Finally posted my #MARCHintosh results - https://jonschwenn.com/marchintosh-2026/

I had intended to post this a month ago, but things have been busy. I want to be more intentional about writing on my website more this year. It feels like documenting things on actual websites you run is a thing of the past and important details or knowledge is lost into the ether that is social networks or videos.

@RonsCompVids I bumped into someone at VCFSoCal that was giving away discs that perform the unlock at boot. I also found the PCB design for the expansion port to add on a floppy. I was thinking of some interesting #GlobalTalk things I could do for #MARCHintosh 2027 :apple_old_logo:

So my interest is 25% gaming 75% what else can I make this thing do

SUCCESS! Finally got the Macintosh 512Ke on #GlobalTalk ! I couldn't find a Phone Net box with a DB9 connector, and my attempts to bodge one together weren't working. Picked up a DB9 LocalTalk connector for less than $10. Now I'm ready for next year's #MARCHintosh , or #Apriltosh , or maybe #AprilApples (though I think LocalTalk only worked on the IIgs.)

Belated #MARCHintosh project #1 completed (mostly): I made a CatMac SE!

The motherboard is my spare/parts SE board - I cannibalized the ROM chips a while back to swap with my other SE in order to use a SuperDrive, so this one's got the original ROMs in it. It's also missing a battery and a speaker. But otherwise, the electronic bits all work great. I'm using the PicoPSU and SE-Combo board that I purchased from Joe's Computer Museum a couple months ago.

The case itself is a 7/10 for me. It's decent, but flimsy in places. That's not so much a problem with the model itself as what I used to print it - basic & matte PLA on a Bambu X1C. I'd probably use PETG if I were to do it again. Removing the supports from inside the drive slots was an absolute nightmare, even when using a dedicated support filament. And when I close it up, the BlueSCSI SD card slot is a bit askew, so right now I have to have the cover off to insert/remove the SD card - going to see if I can use a wad of tape or paper to adjust the positioning.

But other than those relatively minor complaints, it's a beautiful design reminiscent of the Apple's 80's frogdesign aesthetic. I opted for a black case, blue LED & translucent light pipe and red reset/interrupt buttons to give a bit of a retro-futuristic touch (and it'll match my Amiga 500’s new case). And it's completely quiet, just like my IIfx.

So I think what I'm going to do is swap out the motherboard with the one from my other SE, so this one will get the recapped board with the 030 accelerator on it. I'll move the floppy drive over to this machine as well, and then it'll move over to my Tower of Power. Since the BlueSCSI V2 on this machine also supports Wifi, it means I can put away the Asante EN/SC and save even more space (and power outlets) on the Tower.

As for the other SE, I think I'll give the case a good cleaning and then move it to my living room where it will become a "working" display piece (like my 30's Minerva radio).

#RetroComputing #VintageMac

Was checking my router config for unrelated reasons when I went over to the bandwidth monitor tab and remembered it splits out AURP usage.

For the month of #MARCHintosh, my network uploaded nearly 300 *mega bytes* of data to #GlobalTalk !

Quick little goodbye and see you next year for #marchintosh #globaltalk

https://youtu.be/M0Croj34fGc

I probably should have asked this during #marchintosh, but let’s say I have a Mac SE and I wanted to get access to wikipedia. How would one do that? I’m okay downloading a local copy to a file server, doing whatever up-front conversions are helpful.

#MARCHintosh is over, but I've still got one more! After Be, Inc. was gone, BeOS didn’t just vanish. Leaked Dano builds, BeOS 5 PE Max, yellowTAB’s legally murky Zeta, and finally Haiku’s clean-room rebuild made for a surprisingly rich afterlife #RetroComputing #VintageComputing https://youtu.be/pS6SNa1AIWc

Not great timing with #MARCHintosh having just ended, but I finally have the time and ability to work on restoring my 512k Mac.

(Go back in this thread to see what has happened so far.)

I’m going to replace all the capacitors on the analog board. First up is the blown RIFA:

So now that #MARCHintosh is over, I spent the day doing some network reconfiguration.

Can folks still see and connect to my #GlobalTalk shared volumes? Any performance improvement?

I've switched from the QEMU VM running AIR in Mac System 7.1, over to a modern Debian Linux VM running the LToUDP fork of jrouter.

It was a bit of a pain to get everything going again - what finally made everything work was sticking to a VM on my Mac Mini instead of trying to run it all on the Pi or my NAS. There's junk that gets appended to the end of my AppleTalk packets when they cross over my Wifi bridges, and so the routing needs to happen behind one of them in order for everything to work correctly.

I'm not committing to this new setup yet, but I'll probably leave it running for a week or so and see how stable things are compared to the previous AIR setup.

Anyway, now that I have LToUDP working, it means I can access GlobalTalk volumes from my laptop without the need for a Wifi bridge (or a separate laptop), as long as I'm using Mini vMac or Snow.

MOAR ANIMATION!

Sad that I just barely missed #Marchintosh with these ;)

Is there a definitive answer to “what is the latest model Mac that can run Apple Internet Router 3?” for connecting to #globaltalk ?

What are the given dependencies that we know about? MacTCP vs Open Transport, what Max. OS version, 68K vs PPC.

Now that #MARCHintosh is over I want to do some experimenting. This also coincides with my new resolution to not use emulation for anything. Really hardware and back in the day software.

Roughly 40years later - thanks to @gruber and @siracusa - I got to understand why I wanted the Mac and not the IIgs 🎉 square rules! https://en.wikipedia.org/wiki/Apple_GS/OS #retrocomputing #retromac #squarerules #marchintosh #appleii

GlobalTalk admins using non-standard Ethernet interfaces in System 7.1...

Can you please PM a screenshot of your Network and MacTCP settings (first screen only for MacTCP, examples attached) – 1 bit B/W preferred.

I'm wanting to make my AIR manual addendum, and GlobalTalk setup instructions and files more generic.

I'd also be interested in which Ethernet drivers were necessary to get your interface to work with AIR under System 7.1.

Lastly, I'm interested in having a chat with users of Snow, mini vMac, Basilisk II, and other non-QEMU emulators about GlobalTalk connection requirements and setup in System 7.1.

I will credit contributions, of course!

Thank you, and boosts appreciated!

#GlobalTalk #MARCHintosh #BlueSCSI

We've gone all high-tech with a screen capture for the hat-o-matic this time!

And the screen-captured hat-o-matic has chosen @nygl for the fashionable Canvas iron-on winner! Send me a message and we'll get it sent off to you :D
#MARCHintosh #GlobalTalk

I built my own dial-up ISP, then connected to it over WiFi, using Apple's first AirPort base station, from the original iBook G3.

A belated #MARCHintosh video, getting online like it's 1999: https://www.youtube.com/watch?v=GbIoEZZwcgw

Does anyone remember ObjectSupportLib and the problems it could cause?

#classicmac #MARCHintosh

@vkc shares some BlueSCSI love in this video - installing LinuxPPC on a 9600 (one of my favorite Macs!)

https://www.youtube.com/watch?v=ClvEuUQGoXg

#BlueSCSI #retrocomputing #vintageMac #MARCHintosh

cap ripple disappears with the motherboard load, but switching noise gets worse

~400mv seems like a lot but if it runs it runs, not sure my probing isn't bunk

there's an adjustment for the 5v and R81 says +5V Overcurrent Adjust right on it, and that other pot on the high side regulator card appears to be a high side current limiter

this supply has high side and low side current limiting

let it run for a while, +5v regulation looks pretty good, +12V seems to ride a fixed multiplier off the 5v with even worse ripple and just kinda wanders up and down

they don't seem to have been too worried about it

-12v seems to do its own thing

oh well Quadra goes back on the shelf for now to make room for the next thing until i can find the damn VGA adapter for it...

#retrocomputing #Macintosh #MARCHintosh

remembered it had reset and interrupt buttons on the back

moar bongs just to be sure

(kinda thought it would bong louder over the music but didn't want to retake the video)

#retrocomputing #Macintosh #MARCHintosh

Okay, I was wrong the other day. Couldn't waste half of an iron-on transfer sheet, so there's one more #MARCHintosh #GlobalTalk Canvas fashion piece up for grabs.

This one is for the iron-on transfer to make one of your garments *infinitely* more fashionable! It's even “keepin' it real,”as I'm sure the kids still say, by coming fresh out of an ImageWriter 🖨️

Reply to this toot with ‘fashion' for a chance to win.

The hat-o-matic will make its decision tomorrow, Friday 3 April.

Here's a list of my #MARCHintosh projects

2024
• #GlobalTalk Chat Stack 0.2 https://bitbang.social/@kalleboo/112059315186753487
• AppleWideWeb https://bitbang.social/@kalleboo/112095584815721576
• AIRConfig https://bitbang.social/@kalleboo/112162667211632715

2025
• TalkCrawler Stack https://bitbang.social/@kalleboo/114082731067216775
• GlobalTalk Chat Stack 0.9 https://bitbang.social/@kalleboo/114181412502529178
• GlobalTalk Scavenger Hunt

2026
• GlobalTalk Chat 1.0 https://bitbang.social/@kalleboo/116151187088992897
• TalkCrawler Lite https://bitbang.social/@kalleboo/116193694011862379
• MARCHintosh Canvas https://bitbang.social/@kalleboo/116242101654435956
• TalkCrawler AD https://bitbang.social/@kalleboo/116267934997465916

I've uploaded a video of the full TalkCrawler AD screensaver showing all the zones I saw on #GlobalTalk during #MARCHintosh this year, in case anyone was not able to check it out themselves.

https://www.youtube.com/watch?v=ik-sJPcIqY0

RE: https://social.europlus.zone/@europlus/116332838135422445

This got posted in a thread – I had meant to post my Canvas additions by now, but got shamed into it by seeing others’ efforts.

And again,I would like to say thank you to @kalleboo, who not only created “MARCHintosh Canvas” for GlobalTalk participants to create such a masterpiece, but also a native “GlobalTalk Chat” app, a native “TalkCrawler Lite” app, *and* a TalkCrawler After Dark module which used the data collected by TCL in wildly creative ways.

Hats off, Karl - you’ve made MARCHintosh special again!

#GlobalTalk #MARCHintosh

Received a blank page today. Good metaphor for April.

#MARCHintosh #GlobalTalk

@dldnh @MARCHintosh I visualise doing this for any virtual Macs I shut down (but not the two GlobalTalk nodes I leave on all year).

#GlobalTalk #MARCHintosh

Let's do a #MARCHintosh #3D Models Frenzy!

https://www.twitch.tv/mmu_man

https://youtube.com/watch?v=m-v7msgxhzk

#RetroComputer #MacintoshPortable #Mac68k #PowerBook #OpenSCAD #3DPrinting

One more for #MARCHintosh #macOS 9.1 running on #PowerBook G4 Ti. Look at that beautiful messy screen of classic apps.

A somewhat unusual "Macintosh" for this year's MARCHintosh offering...

Here is my Atari 520ST running Spectre, a Macintosh emulator (or translator, perhaps more accurately) which features actual Macintosh Plus ROMs (user must provide) and in 1989 (along with Magic Sac which preceded it in 1986) was "the only legal Macintosh clone." Gadgets by Small, who made the device, called it 20% faster than a Mac Plus, with a 30% larger screen size (640x400 on the ST monochrome display vs. 512x342 on the early Macs). 

The Atari 520STm shown here features an 8MHz MC68000, has been expanded to 4MB RAM (up from 512K), features an HxC2001 floppy emulator, an ACSI2STM hard disk emulator, and dual Atari RGB and monochrome monitors, switchable with a Monitor Master switchbox. The 12-inch SM124 monitor showing Pinball Construction Set for Mac is nearly identical to the early Mac monochrome displays in terms of clarity, the distinctive bluish P4-class phosphor, and its overall "presence." It is a very nice display running at a rock-solid 71Hz.

(A similar series of devices, beginning with the A-Max, was released by ReadySoft for the Commodore Amiga in 1989, though I found the ST options more appealing, in large part due to the superb high-res, non-interlaced monochrome display the ST supported.)

#MARCHintosh

#Macintosh #Mac #Apple #vintageApple #retrocomputing #vintagecomputing #retrocomputers #computing #computers #CRT #emulation #Finder #Spectre #MagicSac #Atari #AtariST #Atari520ST #photo #photos #nostalgia #vintage #BillBudge #tech #ElectronicArts #ByteCellar

By happenstance, I found this Sterlite gasketed plastic storage bin that is pretty perfect for a retrobrite experiment (vapor process), but also for safe basement storage of the SE and similar form factors. Might need to get more. #vintagemac #retrocomputing #marchintosh

Hey #MARCHintosh types, don't forget that we've still got #BadScan up and running for the rest of the month! Just a few easy steps:

1. You print your image to one of the printers in my #GlobalTalk zone (ImageWriter, LaserWriter, or StyleWriter 2500)

2. I convert the ImageWriter into a scanner with a good ol' ThunderScan*

3. Your image gets scanned using a Mac 512.

4. I save the bad scan to your zone or stick it in mine or print it back to you somewhere.

:D

* https://www.folklore.org/Thunderscan.html

While I was able to sort of stream from a #vintagemacintosh yesterday, I did fail at my #Marchintosh goal of streaming from my Quadra 950. If anyone has any very old versions of Avid Film / Media Composer prior to version 5.5 (under the old naming convention), please reach out!

A few new stickers for #MARCHintosh on the 2022 MacBook Air.

#Mac #MacBookAir #macOS #Apple #AppleSilicon #sticker #stickers #laptopstickers #laptops #M2 #vintagecomputing #retrocomputing #nomanssky #photo #photograph #computers #Macintosh

New toy for my SE - next step would be to gather some more RAM and a FPU :) #MARCHintosh #mac68k #retrocomputing #macintosh

For anyone debugging memory issues in your Classic Mac OS program, I can recommend Metrowerks ZoneRanger, which shows a live view of memory allocations

In this demo, you can see how my old version allocates all those tiny blocks of memory for chat lines but then just leaks them, but the fixed version frees it

Legend: Red blocks are non-relocatable, yellow are relocatable (so they move around when the memory manager wants to), and green is free

#MARCHintosh #VintageApple #RetroComputing #mb

For anyone debugging memory issues in your Classic Mac OS program, I can recommend Metrowerks ZoneRanger, which shows a live view of memory allocations

In this demo, you can see how my old version allocates all those tiny blocks of memory for chat lines but then just leaks them, but the fixed version frees it

Legend: Red blocks are non-relocatable, yellow are relocatable (so they move around when the memory manager wants to), and green is free

#MARCHintosh #VintageApple #RetroComputing #mb

For anyone debugging memory issues in your Classic Mac OS program, I can recommend Metrowerks ZoneRanger, which shows a live view of memory allocations

In this demo, you can see how my old version allocates all those tiny blocks of memory for chat lines but then just leaks them, but the fixed version frees it

Legend: Red blocks are non-relocatable, yellow are relocatable (so they move around when the memory manager wants to), and green is free

#MARCHintosh #VintageApple #RetroComputing #mb

For anyone debugging memory issues in your Classic Mac OS program, I can recommend Metrowerks ZoneRanger, which shows a live view of memory allocations

In this demo, you can see how my old version allocates all those tiny blocks of memory for chat lines but then just leaks them, but the fixed version frees it

Legend: Red blocks are non-relocatable, yellow are relocatable (so they move around when the memory manager wants to), and green is free

#MARCHintosh #VintageApple #RetroComputing #mb

For anyone debugging memory issues in your Classic Mac OS program, I can recommend Metrowerks ZoneRanger, which shows a live view of memory allocations

In this demo, you can see how my old version allocates all those tiny blocks of memory for chat lines but then just leaks them, but the fixed version frees it

Legend: Red blocks are non-relocatable, yellow are relocatable (so they move around when the memory manager wants to), and green is free

#MARCHintosh #VintageApple #RetroComputing #mb

Restored my iBook G4 to stock today with OS X 10.4.11! More on the blog: https://theonlyblogever.com/blog/2026/ibookg4.html #retrocomputing #ibook #powerpc #blog #MARCHintosh

I'll be streaming a bit of #OpenSCAD modeling of a #MacPortable part right now:

https://www.youtube.com/watch?v=86GecrV7B8E

https://www.twitch.tv/mmu_man

#Mac68k #RetroComputing #3DModeling #3DPrinting #Marchintosh

Could this be the first battery-powered, fully-wireless ImageWriter II in history? Well, it might at least be the first one on #GlobalTalk!

Just in time for the end of #MARCHintosh, a cheap Farallon AirDock showed up on Yahoo Auctions, and since I already had one, I had to try this stunt - adding an IRTalk node to GlobalTalk.

It is currently live on GlobalTalk if you want to try it, I'll probably leave it up until either the battery runs out or I deem it too much of a tripping hazard.

#mb

Could this be the first battery-powered, fully-wireless ImageWriter II in history? Well, it might at least be the first one on #GlobalTalk!

Just in time for the end of #MARCHintosh, a cheap Farallon AirDock showed up on Yahoo Auctions, and since I already had one, I had to try this stunt - adding an IRTalk node to GlobalTalk.

It is currently live on GlobalTalk if you want to try it, I'll probably leave it up until either the battery runs out or I deem it too much of a tripping hazard.

#mb

Could this be the first battery-powered, fully-wireless ImageWriter II in history? Well, it might at least be the first one on #GlobalTalk!

Just in time for the end of #MARCHintosh, a cheap Farallon AirDock showed up on Yahoo Auctions, and since I already had one, I had to try this stunt - adding an IRTalk node to GlobalTalk.

It is currently live on GlobalTalk if you want to try it, I'll probably leave it up until either the battery runs out or I deem it too much of a tripping hazard.

#mb

Could this be the first battery-powered, fully-wireless ImageWriter II in history? Well, it might at least be the first one on #GlobalTalk!

Just in time for the end of #MARCHintosh, a cheap Farallon AirDock showed up on Yahoo Auctions, and since I already had one, I had to try this stunt - adding an IRTalk node to GlobalTalk.

It is currently live on GlobalTalk if you want to try it, I'll probably leave it up until either the battery runs out or I deem it too much of a tripping hazard.

#mb

Could this be the first battery-powered, fully-wireless ImageWriter II in history? Well, it might at least be the first one on #GlobalTalk!

Just in time for the end of #MARCHintosh, a cheap Farallon AirDock showed up on Yahoo Auctions, and since I already had one, I had to try this stunt - adding an IRTalk node to GlobalTalk.

It is currently live on GlobalTalk if you want to try it, I'll probably leave it up until either the battery runs out or I deem it too much of a tripping hazard.

#mb

perfect ✨

#BadScan #MARCHintosh #obsolete
@billgoats

perfect ✨

#BadScan #MARCHintosh #obsolete
@billgoats

perfect ✨

#BadScan #MARCHintosh #obsolete
@billgoats