Z700U Trigger tube 12 Hour Nixie Clock

[DashApple]

Hey ,

This has been a ongoing project for the past month or so on and off and I have finally reached the point where its working as it should .

Its a 12 Hour Nixie clock using Z700U trigger tubes and front facing nixie tubes , AM is indicated by a A and PM is indicated by a V ( for now ) , Supply voltage to the board is 415V DC @ 20mA .

Neon indicators between the hours and minuets are polarity switched using a relay to alternate the glow in the tube , Time keeping is done by a RTC module and Arduino to output a 1Hz drive signal that drives a relay and in turn drives the input to the seconds stage .

Its built on prototype board all point to point with a lot of thin coated cable

Not the best picture , hope to have better ones soon along with a video : D

Thanks : D

008 by TwirlyWhirly555, on Flickr

 

[Benm]

Oh wow, that's a big load of discrete stuff to build a clock.

Get rid of the arduino though, get your timebase from the mains power signal (very accuracte in the long term) and make it oldschool all the way

 

[Sigurthr]

Wow, all that glass..... beautiful!

 

[DashApple]

Oh wow, that's a big load of discrete stuff to build a clock.

Get rid of the arduino though, get your timebase from the mains power signal (very accuracte in the long term) and make it oldschool all the way

Thanks , I had planed to do main time keeping as I did on my other clock , but as I planed for this to be power from 12 - 19V DC I never added it in , I may do if I go down the mains powered option

Wow, all that glass..... beautiful!

Thanks : D .

I turned out well considering it was layed out on the go

 

[ped]

Ion, great work again...I didn't see this till now.

You wouldn't have a cheap source of Nixies (UK Based) would you? or maybe you could flog me some, even secondhand ?

 

[DashApple]

Thanks : D ,

Id say ebay is the best place that's where most of it came from , I would but don't have any other than the ones in the clock : P .

There are a few nixie surplus places but they are outside the UK

 

[Sigurthr]

Hey Twirly, Reddit has a contest going for unconventional DIY clocks. Thought you might be interested. You can enter previously completed projects too!

https://www.reddit.com/r/diyelectronics/comments/412s7b/topic_beginner_an_unconventional_clock/

 

[DashApple]

Thanks : D , I'll take a look at it .