[neonixie-l] Re: Custom text discharge tube

2011-03-11 Thread Nick

On 10 Mar, 22:08, Imajeenyus lind...@imajeenyus.com wrote:
 Hi folks,

 Just joined the group, after meaning to for ages! I caught the Nixie bug
 last year
...

Hi Lindsay,

Welcome - and a very nice site you have too. I was wondering if you'd
seen
http://translate.google.co.uk/translate?hl=ensl=fru=http://paillard.claude.free.fr/ei=Oel5TZezKpGKhQe98rjeBgsa=Xoi=translatect=resultresnum=1ved=0CB4Q7gEwAAprev=/search%3Fq%3DF2FO%26hl%3Den%26safe%3Doff%26prmd%3Divns
?

Main interesting bit there is the making of his own triode from
scratch, and specifically the degassing etc. which is necessary for a
quality tube - obviously he doesn't Hg-dope his tubes (not necessary
for him) but for any long-life discharge tube, some sort of anti-
sputtering is necessary.

Great work!

Nick

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Re: [neonixie-l] Custom text discharge tube

2011-03-11 Thread John Rehwinkel
 Since then, I've done a couple of Panaplex-like displays (first, second),
 and more recently a text discharge tube, which I though you might be 
 interested
 in. I'm trying to find out if there's any interest in a custom tube like this 
 with
 your name or whatever spelled out in it. They're argon-filled and have a
 lifetime of about 150 hours. If anyone would like getting a custom one
 made, just drop me an email.

That's nifty!  I don't know how I missed it, since I've been looking at your 
laser cutter documentation while
hacking up my own laser cutter.

What are you asking for a custom tube?

- Regards,
John

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[neonixie-l] Re: IN18's

2011-03-11 Thread Jeff Thomas


On Mar 10, 9:50 pm, Gene Segal wavefr...@earthlink.net wrote:
 Hi Jeff,

 I noticed that orders have dropped off quite a bit, and I'm just curious if 
 it's because you haven't had any orders, or if you've found a different 
 source.

 As always, I favor open communication between people whom I do business with.

 Best regards,

 Gene

This was obviously intended for private email.
Yes, orders have dropped precipitously in the last 60 days. They tend
to cycle, and are influenced by many things (moon phases, tax time,
etc).

Regards, Jeff


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[neonixie-l] Re: 6 Digit Direct-Drive B7971 clock kit

2011-03-11 Thread Dave
Understood, just wanted you to add my name to the count when you have
your PCB's run.
Thanks!

On Mar 3, 6:20 pm, MichaelB mbari...@dslextreme.com wrote:
 HI Dave, per my earlier response, we are still working on the PCB
 redesign.

 On Mar 3, 6:37 am, Dave ukewarr...@yahoo.com wrote:

  I would be interested in a PCB and access to either the uP hex file or
  a burned uP.

  On Feb 25, 2:21 pm, MichaelB mbari...@dslextreme.com wrote:

   To all,

   As some of you may know, Carl Ott of this forum has done a wonderful 6
   digit direct-drive clock design for the B7971. I have been working
   with Carl and another forum member and have had a batch of PCB’s made
   per his gerber files. This has resulted in my building an open-top
   version of his clock using Carl’s software which can be seen here on
   my site:  http://www.badnixie.com/The_%22Modular%22_Nixie.html and
   also on Brian Stuckey’s site: (scroll down a 
   bit)http://www.tubeclockdb.com/nixie-clocks.html We have received some
   inquiries about offering a kit like the clock you see here. It would
   be complete with the acrylic top, drilled and tapped base plate, colon
   towers and the whole nine yards. So, we’re trying to determine if
   there is enough interest to make an initial run of 10 kits. We are not
   sure of the selling price yet, but our driving force here is to offer
   a product to the community that fills a void, not try to gouge our
   brethren.

   Note the aluminum fab’d bracket mounting the rotary encoder. This will
   be replaced with a right angle rotary that will mount directly to the
   PCB. Carl plans to do a little more tweaking to the software as well.
   Also there is a fair amount of SMD component soldering involved by the
   user and the kit will be offered without tubes.

   Here is a list of the feature set as it stands now.

   ==Unique Rotary Encoder User interface

   ==Auto Display dimming feature via photo sensor

   ==Adjustable DIM and Brightness levels with Adjustable Dimming
   threshold

   ==QuickTime Set feature- quickly and easily set current time without
   entering config. mode

   ==9 Selectable FONTS

   ==Clock spells out the Month and Day of the week, also displays date
   and year

   ==Four user selectable colon modes- OFF, ON, BLINK, ALT, or RAILRD
   (railroad)

   == TCXO time based

   ==Time On/Time Off sleep setting

   ==Smooth Digit Cross Fade feature with fade rate adjust.

   ==12/24 hour display mode selection

   ==Leading Zero Suppression selection

   ==Adjustable Pulse width Modulation setting value.

   ==Light Value Test Feature to determine optimal dimming point

   ==CW/CCW Rotary encoder direction selection

   Your feedback is appreciated!

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[neonixie-l] Re: How not to make a website

2011-03-11 Thread Nick
On Mar 11, 2:49 pm, David Forbes dfor...@dakotacom.net wrote:
 On 3/10/11 11:40 PM, Nick wrote:

  I'm not sure what the problem is here - it looks like a completely
  standard financial services management company.

  I spent years working for a hedge fund - we did exactly the same.

  Nick

 Nick,

 I understand that the lawyers want to make sure that you understand the
 regulatory obligations endured by the company before doing business with
 them.

 But... making the visitor agree to ten pages of legal boilerplate to
 view *anything* on the website? That's so wrong that it's funny.

Its not wrong, it is a statutory requirement by the applicable
regulatory authority. Look at any hedge or boutique investment fund
site and they are pretty much the same.

One thing to note is that hedge funds are pretty secretive about
exactly what they do (they regard that as part of their competitive
edge), so most of their web sites have scant real content and are
there as a presence only.

Strangely (!!), funds like this don't get passing trade - investors
don't look at the web site to see if they are deserving of an
investment ;-) Most funds are not allowed to sell to the general
public (aka unqualified investors [aka non-professional]) anyway as
the risks are considered to complex and too large. Most funds I've
worked with are required by law (in the UK) to actively qualify all
investors to ensure that they are professionally aware of the risks -
a professional investor has to meet several requirements, some of
which tend to include significant proven trading activity over a
prolonged period together with significant minimum investments, e.g.
maybe $1M or more in liquid capital and fund unit sizes of USD 50, 100
or 500K (depends on type of fund and target investor). Some funds
target only HNWI (high net worth individuals), some institutional
investors (pension funds etc.) and some are referred to as
retail (general public, but at far lower risk).

Enough already on hedge funds...

Nick

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[neonixie-l] Re: Custom text discharge tube

2011-03-11 Thread Imajeenyus
Thanks!

Not entirely sure about the lifetime - I suspect it's something to do
with the large cathode area I've
got (as a result of the way I made the cathode form steel sheet rather
than wire). I guess the lifetime
could be improved a lot by using neon (smaller atom mass, hence less
sputtering) but I'd need
to get hold of some first ;-)

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[neonixie-l] Re: Custom text discharge tube

2011-03-11 Thread Imajeenyus
Hi,

Thanks for all the comments!

Will -

Not entirely sure about the lifetime - I suspect it's something to do
with the large cathode area I've got (as a result of the way I made
the cathode form steel sheet rather than wire). I guess the lifetime
could be improved a lot by using neon (smaller atom mass, hence less
sputtering) but I'd need to get hold of some first ;-)

Marcin/John - I've sent you a pm regarding the tubes

Yes, I saw Claude Paillard's video a while back and it was truly
inspiring! The induction heating bakeout is probably essential for
high-vacuum tubes (triodes etc) - I don't know about higher-pressure
tubes like cold cathode devices. I was hoping that it wouldn't be
so critical.

That's a good point about the gas pressure - bit counter intuitive!
You'd think that lower pressure would be better because you've
got fewer atoms hitting the surface, but of course they'd be striking
at higher energies. A nixie book did say that it is best to use the
highest pressure possible, to avoid sputtering (it also gives you a
good reservoir of gas). Trouble is, you often need to lower the
pressure
in order to get a uniform cathode glow at a reasonable tube current.

Mercury seems to have a huge impact on lifetime as well - Bylander's
book Electronic Displays has a graph of lifetime with and without
mercury, and mercury addition is something like 20 times better. But
I'd rather not be messing around with mercury!

Cheers,

Lindsay

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[neonixie-l] Re: Custom text discharge tube

2011-03-11 Thread Imajeenyus
Hi John,

Thanks for the interest in a tube!

It takes me a couple of days to make it and test it in operation, so
I'd be looking
at around £200, which would include postage to anywhere.

If you're interested, let me know what letters you'd like displayed,
and I can send
you back a design of what the cathode would look like, to see if it's
ok.

Thanks again!

Lindsay

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[neonixie-l] Need Heathkit schematic / manual

2011-03-11 Thread Terry S
For a Heathkit nixie tube multimeter model IM-102.

Thanks

Terry

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[neonixie-l] Re: Need Heathkit schematic / manual

2011-03-11 Thread Nick
On Mar 11, 9:38 pm, Terry S tschw10...@aol.com wrote:
 For a Heathkit nixie tube multimeter model IM-102.

I've sent it to you in a PM

Nick

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