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Another Nixie Tube Clock (sorry) , except..

with driver chips and tubes from 1972/73 !
The Seconds get dimmley displayd on the Minutes tubes.

jj
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completed project
Nixie tube clock

This project was created on 05/01/2020 and last updated 5 years ago.

Description

Tubes (ZM1180) and driver chips (74141) are inherited. I hade to make this clock (:
I was happy that all the chips were compatible with µC voltage levels.

While concentrating on soldering, i messed up order of numbers. Atleast i did it consistently. As soon i figured out in witch (exactly) way i messed up the firmware could be adjustet.

The Seconds get PWM'd onto the minutes. Every 20 Minutes the tubes get a TubeCare routine or showing the Date.

The Boot-sequence is showing the date 0105 (1.May) then it should display 2020 but the second "2" is not showing up, due to hardcoded year numbers. I made this 3 years ago and didnt thought that far. *facepalm*

btw: isn't that (real) 5 beautiful ? (;


case: https://www.thingiverse.com/thing:2137176

Details


Files

NixieTubeClock_.txt

WARNING.. its optimized for my Hardware routing errors. See comments for corretions.

plain - 9.43 kB - 05/01/2020 at 18:58

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Dan Maloney wrote 05/01/2020 at 20:39 • point

No need to apologize, it looks great. Does the seconds display show up better in person than on video?

  Are you sure? yes | no

j wrote 05/01/2020 at 20:47 • point

Thanks a lot! Yea ultrasmooth and more visible imo. When the second changes, its displayed for 3-5 ms exclusive. After that it gets dimmed down. Slow motion recordings were unsuccessful and flickery. From a distance, after all the coding, is looking like a flickering every second, i was told.

  Are you sure? yes | no

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