Re: [neonixie-l] Anyone selling IEL-0-IV or the more rare IEL-0-VI?

[gregebert]

I have 4 of the larger devices (I-195 ?), and at 75mm character-height, 
 they are the largest displays in my collection. Much larger than my nixies.

I'm still puzzled about the drive-current; supposedly these are capacitive 
loads, so at a given frequency & voltage you should be able to calculate 
the current.  For sinusoidal waveforms, the peak current should be 
V/(2*pi*f*C).

After measuring the segment capacitance of my device (ranges from 95p to 
460pF depending on segment length), and calculating the current at 400Hz 
for all segments, I come up with 1.6mA. But the datasheet says 4-12mA, so 
I'm not sure what the discrepancy is.

I dont have a suitable driver yet, and I've only taken a quick look at 60Hz 
/ 150Vrms. The segments were very dim. I wont do any further work till I 
have a decent driver, then I'll post my findings.

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Re: [neonixie-l] Cogwheelcircuit

[Terry Kennedy]

On Wednesday, June 22, 2016 at 5:56:49 PM UTC-4, Michail wrote:
>
>  
> Also, there is a couple of bad links: Like: http://www.tmk.com/mod-6-nixie 
> which 
> is blocked by Chrome as malware site.  It redirects to: http://mihang.com 
> which is 404
>
>
 Sorry about that - I sold tmk.com last year and it subsequently went 
through a number of owners, ending up in China. I don't understand why 
someone would pay what they did for it and then do something that gets it 
blocked by all major browsers...

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Re: [neonixie-l] Cogwheelcircuit

[MichaelB]

Bad links are fixed

On Wednesday, June 22, 2016 at 2:56:49 PM UTC-7, Michail wrote:
>
>  
> Also, there is a couple of bad links: Like: http://www.tmk.com/mod-6-nixie 
> which 
> is blocked by Chrome as malware site.  It redirects to: http://mihang.com 
> which is 404
>  
> Make sure you're getting to: https://www.glaver.org/mod-6-nixie/
>  
>  
> Michail Wilson
> 206-920-6312 
>  
> In a message dated 6/22/2016 2:42:32 P.M. Pacific Daylight Time, 
> wtu...@gmail.com  writes:
>
> Thanks for your answers so far. So it seems , its not so bad , not having 
> this kit !?
>
> And - by the way , the best kit for B7971 , I've built so far , is the kit 
> from badnixie.com !
>
> Great clock , wonderful support - happy customer !!
>
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>

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Re: [neonixie-l] Cogwheelcircuit

[Michail1 via neonixie-l]

Also, there is a couple of bad links: Like: http://www.tmk.com/mod-6-nixie 
which  is blocked by Chrome as malware site.  It redirects to: 
http://mihang.com which is 404
 
Make sure you're getting to: https://www.glaver.org/mod-6-nixie/
 
 
Michail  Wilson
206-920-6312  

 
In a message dated 6/22/2016 2:42:32 P.M. Pacific Daylight Time,  
wtul...@gmail.com writes:

Thanks  for your answers so far. So it seems , its not so bad , not having 
this kit  !?

And - by the way , the best kit for B7971 , I've built so far , is  the kit 
from badnixie.com !

Great clock , wonderful support - happy  customer !!

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Re: [neonixie-l] Cogwheelcircuit

[Nick]

Has Pete Hand any FLW kits left?

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Re: [neonixie-l] Cogwheelcircuit

[Wo Tu]

Thanks for your answers so far. So it seems , its not so bad , not having this 
kit !?

And - by the way , the best kit for B7971 , I've built so far , is the kit from 
badnixie.com !

Great clock , wonderful support - happy customer !!

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Re: [neonixie-l] Cogwheelcircuit

[Michail1 via neonixie-l]

The only two I know of are the
CogWheel
Mod-6
 
Michail  Wilson
206-920-6312  

 
In a message dated 6/22/2016 2:21:13 P.M. Pacific Daylight Time,  
interz...@gmail.com writes:

Speaking of which, are there any other b7971 kits out there that  people 
are aware of? I have the tubes and sockets, but haven't gotten around  to 
building a clock with them from scratch.


On Wed, Jun 22, 2016 at 5:12 PM, Michail1 via  neonixie-l 
<_neonixie-l@googlegroups.com_ (mailto:neonixie-l@googlegroups.com) > wrote:


I think you mean... http://cogwheelcircuitworks.com/
http://cogwheelcircuitworks.com/
 
I have one kit.  Put it together but never did much (anything)  with it.  
My laptop (at the time) didn't have bluetooth to talk to  it.  :)
 
Michail Wilson
_206-920-6312_ (tel:206-920-6312)   
 
 

 
In a message dated 6/22/2016 1:50:45 P.M. Pacific Daylight Time, 
_wtulatz@gmail.com_ (mailto:wtul...@gmail.com)  writes:

Hi  !

Up to here I was mostly only reading the discussions here. Now my  question 
- I was in contact last year with the owner of _cogwheelcircuit.com_ 
(http://cogwheelcircuit.com/) .

We talked about a clock  using B7971. He told me ,that he is about to 
produce a new charge of the  pcb's for this clock.

In the new year I've tried several times to  get in contact with him 
getting 2 of the new pcb's , but never got an  answer again.

Is someone here knowing the owner of this website and  knows about him ?

Anyone with other experiences ?

Sorry for  my bad english - and thank you for your answer.

Appreciate  that.

Greetings

Wolfgang

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Re: [neonixie-l] Cogwheelcircuit

[Nicholas Stock]

Yep, the drive board has been 'coming soon' for a quite some time now...I'm
sure Bob is busy with other things...I have two of the tube boards in
anticipation of the driver boards, but they're not ready yet...;-(

On Wed, Jun 22, 2016 at 2:20 PM, Dylan Distasio  wrote:

> Speaking of which, are there any other b7971 kits out there that people
> are aware of? I have the tubes and sockets, but haven't gotten around to
> building a clock with them from scratch.
>
> On Wed, Jun 22, 2016 at 5:12 PM, Michail1 via neonixie-l <
> neonixie-l@googlegroups.com> wrote:
>
>> I think you mean... http://cogwheelcircuitworks.com/
>> http://cogwheelcircuitworks.com/
>>
>> I have one kit.  Put it together but never did much (anything) with it.
>> My laptop (at the time) didn't have bluetooth to talk to it.  :)
>>
>> Michail Wilson
>> 206-920-6312
>>
>> In a message dated 6/22/2016 1:50:45 P.M. Pacific Daylight Time,
>> wtul...@gmail.com writes:
>>
>> Hi !
>>
>> Up to here I was mostly only reading the discussions here. Now my
>> question - I was in contact last year with the owner of
>> cogwheelcircuit.com.
>>
>> We talked about a clock using B7971. He told me ,that he is about to
>> produce a new charge of the pcb's for this clock.
>>
>> In the new year I've tried several times to get in contact with him
>> getting 2 of the new pcb's , but never got an answer again.
>>
>> Is someone here knowing the owner of this website and knows about him ?
>>
>> Anyone with other experiences ?
>>
>> Sorry for my bad english - and thank you for your answer.
>>
>> Appreciate that.
>>
>> Greetings
>>
>> Wolfgang
>>
>> --
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>> "neonixie-l" group.
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Re: [neonixie-l] Cogwheelcircuit

[Dylan Distasio]

Speaking of which, are there any other b7971 kits out there that people are
aware of? I have the tubes and sockets, but haven't gotten around to
building a clock with them from scratch.

On Wed, Jun 22, 2016 at 5:12 PM, Michail1 via neonixie-l <
neonixie-l@googlegroups.com> wrote:

> I think you mean... http://cogwheelcircuitworks.com/
> http://cogwheelcircuitworks.com/
>
> I have one kit.  Put it together but never did much (anything) with it.
> My laptop (at the time) didn't have bluetooth to talk to it.  :)
>
> Michail Wilson
> 206-920-6312
>
> In a message dated 6/22/2016 1:50:45 P.M. Pacific Daylight Time,
> wtul...@gmail.com writes:
>
> Hi !
>
> Up to here I was mostly only reading the discussions here. Now my question
> - I was in contact last year with the owner of cogwheelcircuit.com.
>
> We talked about a clock using B7971. He told me ,that he is about to
> produce a new charge of the pcb's for this clock.
>
> In the new year I've tried several times to get in contact with him
> getting 2 of the new pcb's , but never got an answer again.
>
> Is someone here knowing the owner of this website and knows about him ?
>
> Anyone with other experiences ?
>
> Sorry for my bad english - and thank you for your answer.
>
> Appreciate that.
>
> Greetings
>
> Wolfgang
>
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Re: [neonixie-l] Cogwheelcircuit

[Michail1 via neonixie-l]

I think you mean... http://cogwheelcircuitworks.com/
http://cogwheelcircuitworks.com/
 
I have one kit.  Put it together but never did much (anything) with  it.  
My laptop (at the time) didn't have bluetooth to talk to it.   :)
 
Michail  Wilson
206-920-6312  

 
In a message dated 6/22/2016 1:50:45 P.M. Pacific Daylight Time,  
wtul...@gmail.com writes:

Hi  !

Up to here I was mostly only reading the discussions here. Now my  question 
- I was in contact last year with the owner of  cogwheelcircuit.com.

We talked about a clock using B7971. He told me  ,that he is about to 
produce a new charge of the pcb's for this  clock.

In the new year I've tried several times to get in contact with  him 
getting 2 of the new pcb's , but never got an answer again.

Is  someone here knowing the owner of this website and knows about him  ?

Anyone with other experiences ?

Sorry for my bad english - and  thank you for your answer.

Appreciate  that.

Greetings

Wolfgang

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[neonixie-l] Cogwheelcircuit

[Wo Tu]

Hi !

Up to here I was mostly only reading the discussions here. Now my question - I 
was in contact last year with the owner of cogwheelcircuit.com.

We talked about a clock using B7971. He told me ,that he is about to produce a 
new charge of the pcb's for this clock.

In the new year I've tried several times to get in contact with him getting 2 
of the new pcb's , but never got an answer again.

Is someone here knowing the owner of this website and knows about him ?

Anyone with other experiences ?

Sorry for my bad english - and thank you for your answer.

Appreciate that.

Greetings

Wolfgang

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[neonixie-l] Re: Nixie IN-14 Brightness

[SWISSNIXIE - Jonathan F.]

You say you want to use arduino? So the frequency of the pwm will be 490Hz or 
980Hz. It is possible to change that, but be carefull, chaninging the pwm 
frequency may mess up functions like millis().  

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[neonixie-l] Re: Nixie IN-14 Brightness

['marta_kson' via neonixie-l]

The schematic on taht link is CRAP! You will blow some components if You 
try!

It is imperative to have a resistor between the collector of NPN and base 
of the PNP. Otherwise it will end up in a short circuit when the NPN 
conducts. Google around for high end nixie drivers and You will find 
correct schematics.

Use one high end driver for all the tubes if You don't intend to multiplex 
them. Each driver puts load on the HV and is bad. Releases heat and puts 
extra strain on the HV-supply. The total current for 6 tubes and two small 
neon bulbs will be well below the limit for the transistor. Select a 
resistor at least two times what saturates the transistor according to 
worst case on it's data cheet. If left unsaturated it will become quite hot 
and break.

Use a fairly low PWM frequency. Without mux 100Hz is more than enough. Too 
high just makes the driver hot.

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[neonixie-l] Re: Nixie IN-14 Brightness

[SWISSNIXIE - Jonathan F.]

Both is possible, but personally i would do one of these for each. 

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