Dekatron clock

[krabkore]

Саундтрек в тему.

[SLvik78]

Lets see.

I used both half-wawes of 50Hz AC - so I have 100Hz.

Then:

1st decatron (Downer left) devides 100Hz AC to 10Hz.

2nd decatron (Downer right) devides 10Hz to 1Hz.

Then follows clock decatrons.

[SLvik78]

@jegermode

Read comments from the begining.

WE HAVE 50Hz AC IN RUSSIA.



[jegermode]

Music is probably final song from soviet film "Magiya chernaya i belaya"

Why so much people are surprised about "6" divider in [nonexistent] 60 Hz, while second and minute counters use "6" decatron positions, too?

[SLvik78]

Read commemts from the begining more careful.

I`ve already explained this.

I`m from Russia, so we have 50Hz in our AC.

[rjpope42]

@SLvik78

Yes i understand how you obtain the 1Hz signal to drive the seconds, then every 10 seconds the next dekatron pulses and the first one (single digits for seconds) resets, but what causes the second tube (ten's digits) to reset to zero and pulse out to the next one after only 6 input signals?

[SLvik78]

Decatrons - A-101.

IN-24 between tubes.

[rjpope42]

@SLvik78 Thank you :)

This might not be the place to get into this, but how'd you wire the divide by 6 logic for the 10 seconds to minuets and the 10 minuets to hours?

[rjpope42]

What is the dekatrons model, and what are you using between the nixie tubes?

[SLvik78]

Thank you

[mouldeck]

this has to be the coolest clock ever!

[morning1500]

My ONLY critical comment: Instead of the goofy music, a narration would have been MUCH more useful. :)

How do you get the "divide-by-6" needed to convert 60Hz into 10Hz? I presume one of the decatrons is "jumpered" to reset to 0 when it tries to hit 6?

[SLvik78]

@morning1500

I`m from Russia.

So we have AC 220v 50Hz.

[morning1500]

@SLvik78

OK, then you need a divide-by-5 circuit, instead of divide-by-6.

[SLvik78]

@morning1500

I used two half-vawe of AC 50Hz.

So first decatron divides 100Hz to 10Hz.

Second decatron devides 10Hz to 1Hz.

@morning1500

I used two half-vawe of AC 50Hz.

So first decatron divides 100Hz to 10Hz.

Second decatron devides 10Hz to 1Hz.

[morning1500]

@SLvik78

Full-wave rectification = frequency doubling! Very clever!! :)

Thank you for explaining that! Here in the USA, we can't do it, because it would be 120 Hz.

[vxbinaca]

@SLvik78 What is the name of that song and who sings it?

[SLvik78]

@vxbinaca

This is the sound track from Russian child film.

Unfortunately I don`t remember films name.

[dvdianov]

How cool is that :)

Please, don`t tell decatron`s model, it would be impossible to buy them :(