Like many, I have a number of projects that have previously stalled, for various reasons. One of those previously stalled projects is my Hexadecimal Keypad journey. This project was initiated …
I’m now finalising the design of my first I/O Card for the Minimalist Europe Card Bus (MECB). I need a driver circuit for a single connection to an Interrupt input …
I’m currently working on the design of my first I/O Card for the Minimalist Europe Card Bus. As mentioned in my previous post / video, my intention is to first …
This post / video follows on from my earlier Minimalist Europe Card Bus posts and videos. My original (version 1.x) MC6809 CPU Card required an original internal clock 6809 (or …
While considering my next CPU card design, I decided to first take a look at the Reset circuit design. My first MECB CPU card faithfully used the same “old school” …
This post follows-on from my previous post, where I presented and assembled my first prototype PCB for a 6809 CPU card, for the MECB bus. The first part concluded following …
This post follows on from my earlier Minimalist Europe Card Bus posts and videos. For MECB, to date I’ve designed and built a Backplane, a Prototype card, and a TMS9929A …
Our EPROM Programmer Adapter was initially designed for use with the hugely popular TL866 series programmer. Initially, for the original TL866A and TL866CS models. But then also verified as fully …
Earlier, I posted an article and video on my TMS9929A Video Display Processor (VDP) rediscovery. This included designing an alternative Retro VRAM solution, which I then implemented as a breadboard …
This is a quick Follow-Up to my recent post and video on my AliExpress Re-Marked Chips Frustration! You can find this here: More AliExpress Re-marked Chips Frustration Since then, I …
