Difference between Tick-LEd and Decimal Points in tubes

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3 months 1 week ago #11425 by Joker
Hello,
I am currently designing an adapter board for the tubes.

I'm wondering what the difference is between the Tick-LED and Decimal Points for tubes. From the construction it is clear but do they indicate different conditions, if so which ones?

Unfortunately I did not find anything specific.
Do the Tick-LED only flash every second or do they have another function?
When is the Decimal Point activated?

Theoretically you could also use the decimal point to get two independently controllable points, isn't it?

In Stefan Kneller's Nixieclock project the decimal points are used to display negative temperatures and different statuses of the clock.

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3 months 1 week ago #11427 by Ian
The tick LEDs are the separators between the hours and minutes and seconds.

The Decimal points are the ones usually in the tubes (like IN-12B or IN-14).

If you don't have those, you could also link up to LEDs or neons - it is a multiplexed output (like the tubes).

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3 months 1 week ago #11428 by Ty_Eeberfest
The one of the decimal points can be used as AM/PM indicator in 12 hour mode. Several of the others can show you the status of the optional motion sensor if installed.

I would suggest including connections for decimal points on the board you're working on. It doesn't cost anything to include and you might find it useful. Tie the decimals of all tubes together same as you do with the digits.

Look into it later when the dust is clearing off the crater.

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3 months 1 week ago #11429 by Ian
What tubes are you designing for? I may have a draft or a template you can use. I use KiCad.

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3 months 1 week ago - 3 months 1 week ago #11430 by Joker
I would like to make a homage of the Concrete Nixie with z560m tubes.

The tubes should be fixed in sockets.

I have finished the footprint so far, I just have to check it again.

I also use Kicad. Ian, do you have a footprint for the Rev6 board?

Back to the points again:
The tick LED flashes every second, is that all it does at the moment?
when is the decimal point in the tubes activated? Also every second, or does it show other information?

That's all right. I didn't recognized Ty's answer.
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Last edit: 3 months 1 week ago by Joker.

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3 months 1 week ago #11431 by Joker
I've connected the dots now. In my case I already have the holes for the INS-1, but I'm not sure if I can use them at all.

With connector 4 and 7 the source (tick or DP) can be selected by a jumper. With jumper 5 and 6 the output (LED or Nixie tube) can be selected.So I am 100% flexible for now.

I know the schematic is a bit crammed I should have chosen a bigger worksheet
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