Been a while since I posted on this subject. I have had the PCB fabricated and assembled one BCD controller. It tool a long time to solder in all the parts, but eventually it got built. After some initial testing of the PCB I found that I had messed up ONE circuit, the one […]
Here is the start of the 7 Segment BCD decoder logic. The idea is to make a generic board that can decode BCD data and display like a LED Digit might. This is similar to the 7447 (or many variants). This post will show the general Relay based logic that I will be using. AND, […]
Ok, this has nothing to do with Tube audio, but I don’t have any other place that might be a good spot to put this project. Years ago at Disneyland they had a hall sponsored by the Bell System. It featured 360 Vision where you could watch a movie with a 360 degree screen. They […]
Welcome to EZ260! This site is HEAVILY under construction an I’m just getting it set up. This site will have complete projects that I have done including schematics and a gallery of images showing what I have done. Feel free to comment and ask questions about anything of interest.