Building a pulse counter and generator

[Miguel Lopez]

Hi All

I want to share this project with all of you. I intend to build a pulse counter to be use in a pulse genrator for my workshop. I will use TTL chips mostly with some CMOS exceptions. For the display I want to use some Soviet IV-8 fluorescent 7 segment tubes.In fact, are valves, with filament, grid and seven fluorescent anodes. I think they could be used as triodes. I;ve been trying them on the breadboard. I will share the designs that I have done in the coming days. I have attached a couple of pictures and there is a video on Facebook, that you can also see.

https://www.facebook.com/video.php?v=340212651341593

This will be a lengthy project as Mr Time is implacable with me and give me almost no chance for fun. Hope not to bore you with this project.

 

[Miguel Lopez]

These are some of the circuits that I intend to use on the pulse counter. One of them has Spanish markings. If needed, I can translate.

 

[bertus]

Hello,

The video can not be seen.
There is a permission issue.
I do not have and want to have facebook.

I have attached a PDF that will let you understand chip interfacing.
TTL and CMOS do have different levels.

Bertus