Either way, I picture a nice cube shape as the finished look.


I was wondering if a cube with some individual panels which could be easily replaced and customised, perhaps joined together with hinges for easy access too. I could cut some out of acrylic perhaps. A flat USB charger with fig8 ...

Greetings, As part of my home-lab computer changes I'm trying to consolidate software projects into a more unified structure. Ive decided to concentrate on using VS Code as an IDE for the various compilers and programming tools.

Initially I tried using a modified version of Greg's build script and ...

Here is my mob of MECBs, celebrating the new year by all running at at the same time. Not shown are a few additional I/O cars and extenders and the spare 6809 and 68HC11 cpus, I need yet another backplane or two. I started building MECB cards in September 2024 but built many more in 2024 partly so I ...

Festivities over for the day, this is what Ive been doing recently...

Ive taken a big decision to switch my primary computing platform to macOS and for far I'm very glad I have.
Ive been a Dos, Windows, and Linux user many years and never had anything to do with Macs - even scorned there practice ...

Greetings cream51,
The jumpers look correct but the dip and rotary switches are not right.
The dip settings are the inverse of what they should be. switch 7 & 8 should be off (1) 1 to 6 should be on (0) to set the I/o address to 0xC000
The rotary switch should be set to 0 for Assist09 or 1 for ...

Looking through my parts draws I've found a plcc 63c09 and dil adapter I bought from you with my keyboard. I'd forgotten I had it, I'll try invaders faster AND slower. Just took delivery of some 68b50 chips to go with it too. David.

Editor wrote: Fri Nov 28, 2025 9:22 am I just checked, and although from a different seller, there does still appear to be verified MC6875 chips available from AliExpress.

Thanks Greg, I'll get one to go with my 6800 chip - I see free postage on it next month too.
Best regards, David.

I'd be interested to see how the clock signals could be implemented using a old, I imagine implementing the clock delays introduced by the RC networks in the circuit Greg posted would be impossible. I have very little experience in pld programming though. Maybe a hybrid with pld and RC networks ...

Please let me know when you've had a chance to confirm all is now working as expected (Life is back to normal?).


It's alive, it's moving, it's alive, it's alive, it's alive, it's alive, IT'S ALIVE!

Edit:
An interesting repeating pattern is easily started by inputting a single line of ten on ...

Today I made my keyboard better: Better than having a crib-sheet on my desk!
Does it count as minimalist?

I'll try the new code tomorrow.
Best regards, David.