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Building a pulse counter and generator

Miguel Lopez

Jan 25, 2012
255
Joined
Jan 25, 2012
Messages
255
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.


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.
 

Attachments

  • 274159567_650926012772858_430914030438060905_n.jpg
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  • 274184716_650926039439522_8614781889537625446_n.jpg
    274184716_650926039439522_8614781889537625446_n.jpg
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Miguel Lopez

Jan 25, 2012
255
Joined
Jan 25, 2012
Messages
255
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.
 

Attachments

  • Display ENG.pdf
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  • Contador_de_pulsos_TTL reduc.pdf
    687.7 KB · Views: 3

bertus

Moderator
Nov 8, 2019
2,718
Joined
Nov 8, 2019
Messages
2,718
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
 

Attachments

  • Chapter 5 IC Specifications and Simple Interfacing .pdf
    566.8 KB · Views: 0
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