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He mind me of the classic guy from got laid off from Texas Instruments Toy CO. (Halt and Catch Fire)-This guy is awsome and still hands on with old school Tech Where Peolple used to go Malls and market places-RIP-DLH

PEANUT I SEE YOUR TRICKS

Ain't nothin outdated about an Arduino. :-) It's a dev harness around an AVR microcontroller, which is a fantastic little micro for simple tasks. Good C support, 5v, lovely little ISA, plenty of useful peripherals, and a vibrant ecosystem. Not everything needs WiFi.

This is phenomenal Adrian. Finish line in sight! Keep it going. 👍

I think you went above and beyond to try and get it working, but you can only do so much... either way I enjoyed watching the journey....

oh Archon was great!

12:10 - That 'ping' sounds similar to the original IBM-PC keyboard.

I'm wondering if it really was a typo. Maybe the person can shed some light or remember. But i could see myself doing that and just offset a new partition. With the intent to be able to still get to the old stuff

This is exactly the type of discussion I love. Thanks!!!

Wow that's hella lucky, congrats!

Unless I'm mistaken, that Arduino you're using to control the reset line is an order of magnitude faster than this thing's CPU. 🤯

"10 years" - The Arduino Uno came out in 2010. 14 years ago. Oof.

Do what you want with it, its yours

I just watched this series and you never finished it!! 😞

Lovely..

Adrianku, JESTEŚ PRZEKOZAK! 😎

Great series!

Adrian, I love your stuff! Any thoughts about producing an electronics course? Especially one that uses diagnostics and repair of old computers as a focus? It could be all canned or maybe even, more expensive options to do live sessions. I would be very interested!!

Honestly, if it's already acting as a bridge/gateway between a physical WiFi interface and a virtual 10baseT NE2K wired thin-ethernet interface, you could have a small boot volume and emulate an extremely fast (for the time) LAN-Manager / NetWare volume injected into that gateway, that your small volume can mount as a drive, the way network boot systems did at the time. Sometimes from a ROM on the NIC, and sometimes from a boot floppy that then mapped C: and all the paths onto the network "drive" letter. That way, there is no local filesystem management at all, and the backing storage could easily be NTFS / E2FS or anything else which the ARM chip manages external from the "old PC". I'd also be interested to see how that system works with more exotic OS. I'm sure it would work on 286 / 386 systems, so OS/2 and MINIX would be interesting to try. I know OS/2 can be a massive pain to find drivers for anything not specifically IBM, but still. I also think that DR GEM Desktop, preferably on DR-DOS (whose memory manager, and FAT control are far superior to MS DOS 6.22 anyway … Especially because it provides EMS *and* XMS interfaces for *all* memory found in the system, reducing the memory pool for both memory types as pages are allocated through either interface) and since GEM was Open Sourced a while back, there is an XM-GEM variant which can utilise XMS memory. … I've always wanted a 68K emulator for GEM similar to Executor for DOS (which is something else now open source and public domain which you should really try out if you haven't) to allow ST GEM applications to run on the (theoretically) more powerful, but far less widely supported with software titles, DOS GEM, in the same way Executor for DOS does with Apple Macintosh software. Which is, that it doesn't emulate a Mac, it just emulates a 68K CPU, and provides native 8086 APIs approximately equivalent to those available in Mac System 6/7. The end result is *very fast* execution of Mac applications on a DOS PC, even with only a 12Mhz or so 286 CPU.

The "find" command in older Unixes needs "-print" at the end or else it does nothing: find / -name '*.xyz' -print

WRT battery crusties. The best treatment is a baking soda paste soak (work it in with a toothbrush, followed by rinsing with clean water and then isopropyl) - this applies to both Nicad and dry/alkaline cell leaks 74S (schottky) devices can usually be safely replaced with LS (low power schottky) but are generally highly reliable. It looks like you're just unlucky that the corrosion penetrated the case

I am following your channel since someone pointed me to your "C64 left for dead" video some 5 years ago, and loved every episode since then. Same applies to your series. But this one topped everthing before. How amazing is it to get a machine with virtually zero documentation or any information running again. And the community figuring out things needed to preceed. One has skills in this, the other in another subject. All combined results in awesomeness I've never seen anywhere else.

You should have kept the 7805

Your channel is awesome - your passion cannot be measured with enthusiasm off the charts. I was great you caught your mistake and took the time to admit it. Thanks for resurrecting older hardware for the current generation to see where we used to be with computers!

I know I'm getting old when I remember I still have a home-made logic probe from 40 years ago that I built into a small pen. Invaluable bit of kit.

The amazing self documenting computer

Unbelievably good series there Adrian!!

I came across a cheaper version of one of these in my local supermarket last night...Priced at £10,- (About $11,25). The UK model doesn't have the USB port or video output though, and with 108 rather cheesy-looking „retro“ games loaded on it (None of which will be familiar to anybody who's ever played games on named brand consoles) I'm worried the newer „UKCA“ version might have all the games stored in the blob, rather than having a separate NOR flash that you can conveniently add your own content to. 🎮🇬🇧💾 Also, just as a test: Did you try running your meter over the data rails coming from that USB port? It's probably there mainly to provide connectivity for the second controller as you theorised...But manufacturers of stuff like this like the product and any upgrades to be quick and easy. If they're putting in a USB port for a second controller, might as well have USB upgrade capability in it too. My suggestion is that the *D+* and *D-* rails might have been swapped around¹. 😉 (¹ - IME: A common trick to make a „proprietary“ USB standard that seems to never work with anything except expensive „official“ accessories. 🔀)

How fortuitous to have found the technical documentation on the very (broken) machine for which no technical documentation exists. Computer inception immediately came to my mind too. 😂 Great work tracking down the flip that no longer flopped.

It's like a soap opera and a detective novel and computer porn all in one.

uma obra de art

I get one this from old interphone camera...very cool...i try make diy oscilloscope and this show half wave forme

For me, this was an example why human kind build the future.

Git is a software highly optimized to track differences between two versions of the same file, usually text files containing source code (hence it is typically used as a versioning tool in software engineering). Git is really not suited to manage files which usually only change either completely (from a _binary_ point of view) or never at all, like office documents, PDFs, or in your case ROM dumps and photographs. I am scared that you might even put executable files you may find on the HDD into that git repo. All those types of files should really be better placed in artifactories. Git is _not_ the right place for them.

since you have the netlist : find out where the interconnections go around that corroded chip ( and anything that was close to that battery. you may still have a number of broken wired due to corrosion

I saw a couple of small arcs when you said "I am just trying to see if..." right when you said "if". But I believe not even the brand new TV's had perfect insulated high voltage cables. They all had small micro fissures.

absolutely incredible events taking place here.

My childhood dream , I would love to get my hand on one of these

I had an Acorn Electron when I was 12 back in the 80's. Unfortunately Acorn missed the Xmas sales and had to throw away thousands that didn't sell. I enjoyed using the Machine and learned to program BASIC on it. The games probably ran slow in BASIC, they did better when I typed in machine code from the Acorn User Magazines. I often think about getting one from Ebay for Nostalga, but they are a bit pricy. I'd love to know what happened to all the excess stock. The worst part of the machine was the soldering on the power connector. Often, the computer reset, deleting all the work I'd done, unless I had saved it to tape. Thanks for the Video, great working fixing the computer, very interesting. I might have to give it a try myself. I haven't played around with electronics for years, but it would be worth the challenge.

I'm surprised it doesn't have its own watchdog reset. Actually, it probably does have one, but it would not be enabled during the self-test.

Wow, that mis-partitioning is genuinely such a lucky break. If that wasn't there, then yeah, you'd probably be stuck. Crazy.