Simple drive circuit for single pulse dekatron

[dr pepper]

I have a nixie clock prototype that uses 4 in1 nixies, a in9 bargraph and a og3 dekatron.

The clock works well however the dekatron takes up 4 pins of the pic micro (3 for guides and 1 for zero detect), and I need these for further expansion.

Is there an adaptation of the single pulse circuit that can be driven from 5v logic from the micro so that I can step the dekatron from just one pulse output from the micro.

I'm thinking a few resistors and high volatge caps for the required guide time delay.

[kay486]

That looks like an really interesting clock! Do you have any pictures or video?

[dr pepper]

I think I allready posted a pic, didnt get any replies, at the moment
its a few tubes screwed to a piece of wood so I spose it doent create
any inspirations.
I'll see if I've still got any pics of it.
P.s. the clock is synced to the msf radio time signal.

> > time delay.- Hide quoted text -
>
> - Show quoted text -

[dr pepper]

I found the original thread from when I designed this clock.
No wonder there wasnt much interest, the pics show a bench full of
components connected up by crop clip leads, I can do better than that,
I'll do a short video and post it it looks a little better now
everythings fastened up in line.
Getting married Wednsday so my shop is a dressmakers at the minute so
might be few days.

https://groups.google.com/group/neonixie-l/browse_thread/thread/299b26872385bcbc/55cd1a992152b3e1?hl=en-GB&lnk=gst&q=dr+pepper#55cd1a992152b3e1

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[Dylan Distasio]

Could you use a shift register to expand the available pins?

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[dr pepper]

Yes I could use something like a 4094 or similar, a few passives would
be less room however, depending what values I'd need.
I spose I'd like to get it working and see if its a better method, one
bonus is the display boards would be nothing but passives without usng
the shift reg.

On 13 July, 14:42, Dylan Distasio <interz...@gmail.com> wrote:
> Could you use a shift register to expand the available pins?
>

> On Fri, Jul 13, 2012 at 8:49 AM, dr pepper <seaking.helicopt...@gmail.com>wrote:
>
>
>
> > I have a nixie clock prototype that uses 4 in1 nixies, a in9 bargraph and
> > a og3 dekatron.
> > The clock works well however the dekatron takes up 4 pins of the pic micro
> > (3 for guides and 1 for zero detect), and I need these for further
> > expansion.
> > Is there an adaptation of the single pulse circuit that can be driven from
> > 5v logic from the micro so that I can step the dekatron from just one pulse
> > output from the micro.
> > I'm thinking a few resistors and high volatge caps for the required guide
> > time delay.
>
> > --
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> > "neonixie-l" group.
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> >http://groups.google.com/group/neonixie-l?hl=en-GB.- Hide quoted text -

[dr pepper]

Revival of an old thread.

Its a while back but I promised a vid of my nixie/deaktron/neon
bargraph clock, just found it:

http://www.youtube.com/watch?v=CVYEiCc19Bs&feature=youtu.be

On 13 July, 15:14, dr pepper <seaking.helicopt...@gmail.com> wrote:
> Yes I could use something like a 4094 or similar, a few passives would
> be less room however, depending what values I'd need.
> I spose I'd like to get it working and see if its a better method, one
> bonus is the display boards would be nothing but passives without usng
> the shift reg.
>
> On 13 July, 14:42, Dylan Distasio <interz...@gmail.com> wrote:
>
>
>
> > Could you use a shift register to expand the available pins?
>

> > On Fri, Jul 13, 2012 at 8:49 AM,drpepper<seaking.helicopt...@gmail.com>wrote:
>
> > > I have a nixie clock prototype that uses 4 in1 nixies, a in9 bargraph and
> > > a og3 dekatron.
> > > The clock works well however the dekatron takes up 4 pins of the pic micro
> > > (3 for guides and 1 for zero detect), and I need these for further
> > > expansion.
> > > Is there an adaptation of the single pulse circuit that can be driven from
> > > 5v logic from the micro so that I can step the dekatron from just one pulse
> > > output from the micro.
> > > I'm thinking a few resistors and high volatge caps for the required guide
> > > time delay.
>
> > > --
> > > You received this message because you are subscribed to the Google Groups
> > > "neonixie-l" group.
> > > To view this discussion on the web, visit
> > >https://groups.google.com/d/msg/neonixie-l/-/ZEV9RDcwzw4J.
> > > To post to this group, send an email to neoni...@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > > neonixie-l+...@googlegroups.com.
> > > For more options, visit this group at

> > >http://groups.google.com/group/neonixie-l?hl=en-GB.-Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -