[neonixie-l] Re: Nixie Clock - Time Cycle enough to protect against cathode poisoning? Without slot machine effect

[gregeb...@hotmail.com]

If your tubes are socketed, you can rotate them yearly. It's a bit of a 
pain if you have several clocks (grrr...I have 5 clocks, and one of them 
 has 15 tubes)

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[neonixie-l] Re: Nixie Clock - Time Cycle enough to protect against cathode poisoning? Without slot machine effect

[Joseph Bento]

I'm curious as well. 

 I could see issues with the "10's" position for seconds and minutes, as 
the highest number it will ever see is "5."  Is that an issue if you don't 
care about the other numbers?  10's of hours will only see a "1" for a 
12-hour clock, and up to "2" for a 24-hour clock.  Do we actually care 
about these other numbers?

Joe, N6DGY

On Tuesday, June 24, 2014 6:33:33 PM UTC-6, Dman777 wrote:
>
> Hi,
>
> I think I might of found a In-12 Clock that I like. However, it doesn't 
> have the occasional slot machine display effect to protect it against 
> cathode poisoning. The person that makes this kit said that it's a gimmick 
> and not necessary because the when the clock cycles through time that is 
> enough to protect it. Is this true?
>

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[neonixie-l] Nixie Clock - Time Cycle enough to protect against cathode poisoning? Without slot machine effect

[Dman777]

Hi,

I think I might of found a In-12 Clock that I like. However, it doesn't 
have the occasional slot machine display effect to protect it against 
cathode poisoning. The person that makes this kit said that it's a gimmick 
and not necessary because the when the clock cycles through time that is 
enough to protect it. Is this true?

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[neonixie-l] I love this Nixie In-12 Case

[Dman777]

I love this Nixie In-12 Clock case. Does anyone know if one like it is for 
sale and if there is a 6 digit version?

https://www.youtube.com/watch?v=BFM0KYWElUU

Thanks,
-Darin

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[neonixie-l] Re: Recommendations For A Socket Nixie Clock Kit

[Dman777]

Is that price with the clock kit and tubes? Also, I'm kind of leaning to 
the In-12 tubes. Do you have any thing with those?

Thanks,
-Darin

On Monday, June 23, 2014 3:26:52 AM UTC-5, Paul Parry wrote:
>
>
> On Sunday, 22 June 2014 22:37:04 UTC+1, Dman777 wrote: 
>>
>> Hi,  
>>
>> I am looking for recommendations for a Nixie clock kit that uses 6 
>> *socket* tubes(please note this is *not top tubes*). 
>>
>> So far I have:
>>
>>
>> http://www.pvelectronics.co.uk/index.php?main_page=product_info&cPath=1&products_id=122
>> This uses IN-4 Tubes. I like this clock...but I am not a fan of the case 
>> and I would to have column lights
>>
>  
> I do a different case for this kit:
> http://www.bad-dog-designs.co.uk/images/Contemp/Desk_3.jpg
>  
> Although get the Halo kit as you can use a wide variey of end view tubes, 
> I personally use GN-4's as they are excellent tubes.
>  
> Cheers,
> Paul
>  
>  
>
>>  
>>
>> http://www.clausurbach.de/shop/product_info.php?language=en&info=p209_black-n-wood-uhrenbausatz.html&;
>> I like this but it's a little pricey for my budget...and I am not 
>> familiar with QS30-1 tubes from Fengguang Tube Factory in China
>>
>> http://store.tubeclock.com/index.php/nixie-tube-clocks/clocks#IN12_6_Clock
>> I like this clockmainly because of the case and price. But I was 
>> hoping that for column lights and some LED's. IN12 tubes seem to have a 
>> good reputation also. 
>>
>> If anyone can please comment what they think about any of these or if 
>> they might want to suggest socket clock kit that I am missing, I would be 
>> greatly appreciate it. It needs to be a clock kit because I'm *not* a 
>> do-it yourself from scratch kind of person. Doing my research before I pull 
>> the trigger :)
>>
>> Thanks,
>> -Darin
>>
>>

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[neonixie-l] Best Enclosure For Nixie IN-12- non clear case?

[Dman777]

I am trying to decide...for Nixie In-12 socket tubes...would the best 
enclosure be one that is non clear? I was asking because I was wondering if 
the non see-through cases would allow the inner tube light to glow better 
giving more depth?

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Re: [neonixie-l] Digest for neonixie-l@googlegroups.com - 4 updates in 3 topics

[Mike Mitchell]

The tubeclock database (http://www.tubeclockdb.com/) is a good place to
start.
Akafugu has an end-view clock with colons:
http://www.akafugu.jp/posts/products/nixie/



On Tue, Jun 24, 2014 at 3:43 AM,  wrote:

>   Today's topic summary
>
> Group: http://groups.google.com/group/neonixie-l/topics
>
>- Saga of the Sperry part 2 <#146ccd40ccf9293b_group_thread_0> [2
>Updates]
>- Digest for neonixie-l@googlegroups.com - 1 update in 1 topic
><#146ccd40ccf9293b_group_thread_1> [1 Update]
>- Recommendations For A Socket Nixie Clock Kit
><#146ccd40ccf9293b_group_thread_2> [1 Update]
>
>   Saga of the Sperry part 2
> 
>
>Morris Odell  Jun 23 04:14AM -0700
>
>Hi all,
>
>Part 1 described the innards of the Sperry radar indicator that I
>wanted to
>use for a clock and it's difficult internal structure. Now I'll get
>started
>on the design.
>
>The first step was to work out what frequencies and voltages I would
>need.
>Experience has shown that CRT clocks need to run at a scan frequency
>that
>is related to the mains frequency in order to prevent stray electric
>and
>magnetic fields in the environment from wobbling the display. This was
>not
>likely to be a big issue here as the neck of the CRT was shielded and
>by
>the time the beam got out of the shield it would be accelerating fast
>enough to not be seriously affected. Nevertheless I decided on 900 Hz
>as it
>is a multiple of both 60 and 50 and was in the design range of the
>power
>transformers. Looking at the ratings of those transformers I worked
>out
>that I needed about 50 watts, possibly less if I could derive the +/-
>12
>volt and the shift coil supplies from the mains. I also thought it
>would be
>pretty nifty if I could drive the scan coils from a rotary resolver
>driven
>by a stepper which in turn would be controlled by an AVR and GPS
>receiver.
>Cool huh?
>
>The only snag was that I didn't have, and would almost certainly never
>have, the proper resolver! I did have a couple of surplus 50 and 400
>Hz
>synchros though, so why not try?
>
>The 100 volt 900 Hz power supply had to be a sine wave as that was
>expected by the area balance circuit. This meant that the power supply
>would be a linear amplifier driven by a sine wave source. Inefficient
>I
>know, but making a switch mode sine wave inverter was just too hard
>given
>the difficulty in finding suitable cores to work at 900 Hz. I designed
>up a
>900 Hz exciter using a 4046 PLL phase locked to the mains followed by
>an
>active low pass filter to knock off enough harmonics to make it look
>like a
>sine wave. I included a voltage controlled attenuator to allow
>feedback
>control of the output and built it up on a little PCB - it worked very
>well
>and supplied several other outputs that I thought I would need.
>
>For the power amplifier I chose a LM3886 which was cheap and capable
>of
>generating lots more power than I needed providing it was heat sunk
>properly and supplied with enough volts. It would need a transformer
>to
>shift the output voltage to 100 and I raided both my and several
>friends
>junk boxes to find what I though might work. I had a suitable 80 VA
>mains
>power transformer already - it would develop +/- 25 volts and had taps
>to
>also get +/- 17 volts for a pair of 12 volt 3 terminal regulators, and
>6
>volts for the CRT heater thus allowing me to remove one of the 900 Hz
>transformers. The junk box yielded a suitable very large heatsink so
>away I
>went.
>
>I got to work removing all the unnecessary stuff from the indicator,
>Dismantling is definitely a lot of fun :-) Out went the heater
>transformer, IF strip, the power relays, fuses and the multi-pin
>connectors. All the associated wiring came out of the looms too. A few
>charred power resistors and all the electrolytics were replaced as
>were
>some messy replacement rectifiers that sat on blackened areas on the
>rear
>panel(!). The variable video time constant parts and switching went,
>as did
>the heading indicator and signal strength meter. After doing that
>there was
>enough room to mount the power transformer and the big heatsink for
>the LM
>3886. I connected it all up, attached my 400 Hz synchro and reached
>for the
>power switch - a scary proposition for something that hadn't seen
>moving
>electrons for along time.
>
>Well, the good news was that the CRT lit up OK (whew!) and the
>waveform
>generators all worked but that's where it ended. It was pretty obvious
>that
>my little synchros would never develop enough secondary current to
>adequately deflect the beam. In 

[neonixie-l] A use for all those Itron displays I've got in the garage

[petehand]

 

 

Inspired by Grahame Marsh's "approx" and "proverb" clocks (
http://www.sgitheach.org.uk/vfd3b.html), here's my effort. It tells the 
date and approximate time ("nearly ten to three" etc), has a complete 
calendar of US special days including the ones that move (eg it shows 
Easter correctly for the whole 21st century), a thousand different proverbs 
and quotations, and 366 historic birthdays, one for every day of the year. 
(I was torn who to pick for December 25th. The obvious would be Jesus 
Christ, but I opted for Sir Isaac Newton instead.) Additionally you can put 
in 30 messages of your own, such as birthday or anniversary reminders, to 
show on specific dates, plus sixteen of your favorite witty sayings or 
scurrilous remarks to show up at any time. I ended up with less than 128 
bytes of Flash memory free and not a single unused byte of EEPROM, which 
gives me great satisfaction.

Since the LM9022 is going out of style, I used an Si9986 H bridge (U4, 
bottom right) for the filament AC, driven by the processor off the 
oscillator that generates the 35V. A pair of HV5812s drive the 16 grids and 
16 anodes at a multiplex frequency of 1kHz. There's an ambient light sensor 
above the display for automatic brightness control. It plugs into any USB 
port for power, which is also the way you edit the personal messages. A 
supercap keeps time for a day or two when it's unplugged - personal 
messages are stored in EEPROM and won't be lost.



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